a138e351bc
Summary:
- Added back the `NO_ITERATORS` that was removed in 5945e16dfc.
- Marked it as deprecated since it is no longer populated, but kept for API compatibility.
- Made sure the new tickers, `NO_ITERATOR_CREATED` and `NO_ITERATOR_DELETED`, are appended at the end of the enum, in case people are relying on the int values.
The change where `NO_ITERATOR_CREATED` and `NO_ITERATOR_DELETED` were introduced is unreleased so I believe it is ok to change their ordering.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4701
Differential Revision: D13142887
Pulled By: ajkr
fbshipit-source-id: 29a336ce5b46632ce50ad42ccc4a29013f71d6d6
5031 lines
157 KiB
C++
5031 lines
157 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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// This file is designed for caching those frequently used IDs and provide
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// efficient portal (i.e, a set of static functions) to access java code
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// from c++.
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#ifndef JAVA_ROCKSJNI_PORTAL_H_
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#define JAVA_ROCKSJNI_PORTAL_H_
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#include <cstring>
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#include <jni.h>
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#include <functional>
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#include <iostream>
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#include <iterator>
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#include <limits>
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#include <memory>
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#include <string>
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#include <type_traits>
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#include <vector>
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#include "rocksdb/db.h"
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#include "rocksdb/filter_policy.h"
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#include "rocksdb/rate_limiter.h"
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#include "rocksdb/status.h"
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#include "rocksdb/utilities/backupable_db.h"
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#include "rocksdb/utilities/memory_util.h"
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#include "rocksdb/utilities/transaction_db.h"
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#include "rocksdb/utilities/write_batch_with_index.h"
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#include "rocksjni/compaction_filter_factory_jnicallback.h"
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#include "rocksjni/comparatorjnicallback.h"
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#include "rocksjni/loggerjnicallback.h"
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#include "rocksjni/transaction_notifier_jnicallback.h"
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#include "rocksjni/writebatchhandlerjnicallback.h"
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// Remove macro on windows
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#ifdef DELETE
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#undef DELETE
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#endif
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namespace rocksdb {
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// Detect if jlong overflows size_t
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inline Status check_if_jlong_fits_size_t(const jlong& jvalue) {
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Status s = Status::OK();
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if (static_cast<uint64_t>(jvalue) > std::numeric_limits<size_t>::max()) {
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s = Status::InvalidArgument(Slice("jlong overflows 32 bit value."));
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}
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return s;
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}
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class JavaClass {
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public:
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/**
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* Gets and initializes a Java Class
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*
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* @param env A pointer to the Java environment
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* @param jclazz_name The fully qualified JNI name of the Java Class
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* e.g. "java/lang/String"
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*
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* @return The Java Class or nullptr if one of the
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* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
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* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
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*/
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static jclass getJClass(JNIEnv* env, const char* jclazz_name) {
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jclass jclazz = env->FindClass(jclazz_name);
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assert(jclazz != nullptr);
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return jclazz;
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}
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};
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// Native class template
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template<class PTR, class DERIVED> class RocksDBNativeClass : public JavaClass {
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};
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// Native class template for sub-classes of RocksMutableObject
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template<class PTR, class DERIVED> class NativeRocksMutableObject
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: public RocksDBNativeClass<PTR, DERIVED> {
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public:
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/**
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* Gets the Java Method ID for the
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* RocksMutableObject#setNativeHandle(long, boolean) method
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*
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* @param env A pointer to the Java environment
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* @return The Java Method ID or nullptr the RocksMutableObject class cannot
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* be accessed, or if one of the NoSuchMethodError,
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* ExceptionInInitializerError or OutOfMemoryError exceptions is thrown
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*/
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static jmethodID getSetNativeHandleMethod(JNIEnv* env) {
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static jclass jclazz = DERIVED::getJClass(env);
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if(jclazz == nullptr) {
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return nullptr;
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}
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static jmethodID mid = env->GetMethodID(
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jclazz, "setNativeHandle", "(JZ)V");
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assert(mid != nullptr);
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return mid;
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}
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/**
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* Sets the C++ object pointer handle in the Java object
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*
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* @param env A pointer to the Java environment
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* @param jobj The Java object on which to set the pointer handle
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* @param ptr The C++ object pointer
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* @param java_owns_handle JNI_TRUE if ownership of the C++ object is
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* managed by the Java object
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*
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* @return true if a Java exception is pending, false otherwise
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*/
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static bool setHandle(JNIEnv* env, jobject jobj, PTR ptr,
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jboolean java_owns_handle) {
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assert(jobj != nullptr);
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static jmethodID mid = getSetNativeHandleMethod(env);
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if(mid == nullptr) {
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return true; // signal exception
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}
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env->CallVoidMethod(jobj, mid, reinterpret_cast<jlong>(ptr), java_owns_handle);
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if(env->ExceptionCheck()) {
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return true; // signal exception
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}
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return false;
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}
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};
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// Java Exception template
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template<class DERIVED> class JavaException : public JavaClass {
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public:
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/**
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* Create and throw a java exception with the provided message
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*
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* @param env A pointer to the Java environment
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* @param msg The message for the exception
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*
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* @return true if an exception was thrown, false otherwise
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*/
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static bool ThrowNew(JNIEnv* env, const std::string& msg) {
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jclass jclazz = DERIVED::getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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std::cerr << "JavaException::ThrowNew - Error: unexpected exception!" << std::endl;
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return env->ExceptionCheck();
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}
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const jint rs = env->ThrowNew(jclazz, msg.c_str());
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if(rs != JNI_OK) {
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// exception could not be thrown
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std::cerr << "JavaException::ThrowNew - Fatal: could not throw exception!" << std::endl;
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return env->ExceptionCheck();
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}
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return true;
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}
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};
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// The portal class for org.rocksdb.RocksDB
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class RocksDBJni : public RocksDBNativeClass<rocksdb::DB*, RocksDBJni> {
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public:
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/**
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* Get the Java Class org.rocksdb.RocksDB
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Class or nullptr if one of the
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* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
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* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
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*/
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static jclass getJClass(JNIEnv* env) {
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return RocksDBNativeClass::getJClass(env, "org/rocksdb/RocksDB");
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}
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};
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// The portal class for org.rocksdb.Status.Code
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class CodeJni : public JavaClass {
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public:
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/**
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* Get the Java Class org.rocksdb.Status.Code
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Class or nullptr if one of the
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* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
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* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
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*/
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static jclass getJClass(JNIEnv* env) {
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return JavaClass::getJClass(env, "org/rocksdb/Status$Code");
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}
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/**
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* Get the Java Method: Status.Code#getValue
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Method ID or nullptr if the class or method id could not
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* be retieved
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*/
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static jmethodID getValueMethod(JNIEnv* env) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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static jmethodID mid =
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env->GetMethodID(jclazz, "getValue", "()b");
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assert(mid != nullptr);
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return mid;
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}
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};
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// The portal class for org.rocksdb.Status.SubCode
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class SubCodeJni : public JavaClass {
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public:
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/**
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* Get the Java Class org.rocksdb.Status.SubCode
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Class or nullptr if one of the
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* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
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* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
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*/
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static jclass getJClass(JNIEnv* env) {
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return JavaClass::getJClass(env, "org/rocksdb/Status$SubCode");
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}
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/**
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* Get the Java Method: Status.SubCode#getValue
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Method ID or nullptr if the class or method id could not
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* be retieved
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*/
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static jmethodID getValueMethod(JNIEnv* env) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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static jmethodID mid =
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env->GetMethodID(jclazz, "getValue", "()b");
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assert(mid != nullptr);
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return mid;
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}
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static rocksdb::Status::SubCode toCppSubCode(const jbyte jsub_code) {
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switch (jsub_code) {
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case 0x0:
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return rocksdb::Status::SubCode::kNone;
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case 0x1:
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return rocksdb::Status::SubCode::kMutexTimeout;
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case 0x2:
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return rocksdb::Status::SubCode::kLockTimeout;
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case 0x3:
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return rocksdb::Status::SubCode::kLockLimit;
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case 0x4:
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return rocksdb::Status::SubCode::kNoSpace;
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case 0x5:
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return rocksdb::Status::SubCode::kDeadlock;
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case 0x6:
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return rocksdb::Status::SubCode::kStaleFile;
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case 0x7:
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return rocksdb::Status::SubCode::kMemoryLimit;
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case 0x7F:
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default:
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return rocksdb::Status::SubCode::kNone;
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}
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}
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};
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// The portal class for org.rocksdb.Status
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class StatusJni : public RocksDBNativeClass<rocksdb::Status*, StatusJni> {
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public:
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/**
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* Get the Java Class org.rocksdb.Status
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Class or nullptr if one of the
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* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
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* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
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*/
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static jclass getJClass(JNIEnv* env) {
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return RocksDBNativeClass::getJClass(env, "org/rocksdb/Status");
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}
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/**
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* Get the Java Method: Status#getCode
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Method ID or nullptr if the class or method id could not
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* be retieved
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*/
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static jmethodID getCodeMethod(JNIEnv* env) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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static jmethodID mid =
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env->GetMethodID(jclazz, "getCode", "()Lorg/rocksdb/Status$Code;");
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assert(mid != nullptr);
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return mid;
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}
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/**
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* Get the Java Method: Status#getSubCode
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Method ID or nullptr if the class or method id could not
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* be retieved
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*/
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static jmethodID getSubCodeMethod(JNIEnv* env) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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static jmethodID mid =
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env->GetMethodID(jclazz, "getSubCode", "()Lorg/rocksdb/Status$SubCode;");
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assert(mid != nullptr);
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return mid;
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}
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/**
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* Get the Java Method: Status#getState
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*
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* @param env A pointer to the Java environment
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*
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* @return The Java Method ID or nullptr if the class or method id could not
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* be retieved
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*/
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static jmethodID getStateMethod(JNIEnv* env) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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static jmethodID mid =
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env->GetMethodID(jclazz, "getState", "()Ljava/lang/String;");
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assert(mid != nullptr);
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return mid;
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}
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/**
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* Create a new Java org.rocksdb.Status object with the same properties as
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* the provided C++ rocksdb::Status object
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*
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* @param env A pointer to the Java environment
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* @param status The rocksdb::Status object
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*
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* @return A reference to a Java org.rocksdb.Status object, or nullptr
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* if an an exception occurs
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*/
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static jobject construct(JNIEnv* env, const Status& status) {
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jclass jclazz = getJClass(env);
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if(jclazz == nullptr) {
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// exception occurred accessing class
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return nullptr;
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}
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jmethodID mid =
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env->GetMethodID(jclazz, "<init>", "(BBLjava/lang/String;)V");
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if(mid == nullptr) {
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// exception thrown: NoSuchMethodException or OutOfMemoryError
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return nullptr;
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}
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// convert the Status state for Java
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jstring jstate = nullptr;
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if (status.getState() != nullptr) {
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const char* const state = status.getState();
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jstate = env->NewStringUTF(state);
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if(env->ExceptionCheck()) {
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if(jstate != nullptr) {
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env->DeleteLocalRef(jstate);
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}
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return nullptr;
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}
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}
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jobject jstatus =
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env->NewObject(jclazz, mid, toJavaStatusCode(status.code()),
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toJavaStatusSubCode(status.subcode()), jstate);
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if(env->ExceptionCheck()) {
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// exception occurred
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if(jstate != nullptr) {
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env->DeleteLocalRef(jstate);
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}
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return nullptr;
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}
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if(jstate != nullptr) {
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env->DeleteLocalRef(jstate);
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}
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return jstatus;
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}
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// Returns the equivalent org.rocksdb.Status.Code for the provided
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// C++ rocksdb::Status::Code enum
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static jbyte toJavaStatusCode(const rocksdb::Status::Code& code) {
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switch (code) {
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case rocksdb::Status::Code::kOk:
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return 0x0;
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case rocksdb::Status::Code::kNotFound:
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return 0x1;
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case rocksdb::Status::Code::kCorruption:
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return 0x2;
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case rocksdb::Status::Code::kNotSupported:
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return 0x3;
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case rocksdb::Status::Code::kInvalidArgument:
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return 0x4;
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case rocksdb::Status::Code::kIOError:
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return 0x5;
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case rocksdb::Status::Code::kMergeInProgress:
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return 0x6;
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case rocksdb::Status::Code::kIncomplete:
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return 0x7;
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case rocksdb::Status::Code::kShutdownInProgress:
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return 0x8;
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case rocksdb::Status::Code::kTimedOut:
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return 0x9;
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case rocksdb::Status::Code::kAborted:
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return 0xA;
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case rocksdb::Status::Code::kBusy:
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return 0xB;
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case rocksdb::Status::Code::kExpired:
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return 0xC;
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case rocksdb::Status::Code::kTryAgain:
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return 0xD;
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default:
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return 0x7F; // undefined
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}
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}
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// Returns the equivalent org.rocksdb.Status.SubCode for the provided
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// C++ rocksdb::Status::SubCode enum
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static jbyte toJavaStatusSubCode(const rocksdb::Status::SubCode& subCode) {
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switch (subCode) {
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case rocksdb::Status::SubCode::kNone:
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return 0x0;
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case rocksdb::Status::SubCode::kMutexTimeout:
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return 0x1;
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case rocksdb::Status::SubCode::kLockTimeout:
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return 0x2;
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case rocksdb::Status::SubCode::kLockLimit:
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return 0x3;
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case rocksdb::Status::SubCode::kNoSpace:
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return 0x4;
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case rocksdb::Status::SubCode::kDeadlock:
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return 0x5;
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case rocksdb::Status::SubCode::kStaleFile:
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return 0x6;
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case rocksdb::Status::SubCode::kMemoryLimit:
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return 0x7;
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default:
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return 0x7F; // undefined
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}
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}
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|
|
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// Returns the equivalent rocksdb::Status for the Java org.rocksdb.Status
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static std::unique_ptr<rocksdb::Status> toCppStatus(JNIEnv* env, const jobject jstatus) {
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jmethodID mid_code = getCodeMethod(env);
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if (mid_code == nullptr) {
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// exception occurred
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return nullptr;
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}
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jobject jcode = env->CallObjectMethod(jstatus, mid_code);
|
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if (env->ExceptionCheck()) {
|
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// exception occurred
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return nullptr;
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}
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jmethodID mid_code_value = rocksdb::CodeJni::getValueMethod(env);
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if (mid_code_value == nullptr) {
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// exception occurred
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return nullptr;
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}
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jbyte jcode_value = env->CallByteMethod(jcode, mid_code_value);
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if (env->ExceptionCheck()) {
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// exception occurred
|
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if (jcode != nullptr) {
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env->DeleteLocalRef(jcode);
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}
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return nullptr;
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}
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jmethodID mid_subCode = getSubCodeMethod(env);
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if (mid_subCode == nullptr) {
|
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// exception occurred
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return nullptr;
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}
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jobject jsubCode = env->CallObjectMethod(jstatus, mid_subCode);
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if (env->ExceptionCheck()) {
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|
// exception occurred
|
|
if (jcode != nullptr) {
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env->DeleteLocalRef(jcode);
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}
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return nullptr;
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}
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|
|
|
jbyte jsubCode_value = 0x0; // None
|
|
if (jsubCode != nullptr) {
|
|
jmethodID mid_subCode_value = rocksdb::SubCodeJni::getValueMethod(env);
|
|
if (mid_subCode_value == nullptr) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
jsubCode_value =env->CallByteMethod(jsubCode, mid_subCode_value);
|
|
if (env->ExceptionCheck()) {
|
|
// exception occurred
|
|
if (jcode != nullptr) {
|
|
env->DeleteLocalRef(jcode);
|
|
}
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
jmethodID mid_state = getStateMethod(env);
|
|
if (mid_state == nullptr) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
jobject jstate = env->CallObjectMethod(jstatus, mid_state);
|
|
if (env->ExceptionCheck()) {
|
|
// exception occurred
|
|
if (jsubCode != nullptr) {
|
|
env->DeleteLocalRef(jsubCode);
|
|
}
|
|
if (jcode != nullptr) {
|
|
env->DeleteLocalRef(jcode);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
std::unique_ptr<rocksdb::Status> status;
|
|
switch (jcode_value) {
|
|
case 0x0:
|
|
//Ok
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::OK()));
|
|
break;
|
|
case 0x1:
|
|
//NotFound
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::NotFound(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x2:
|
|
//Corruption
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Corruption(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x3:
|
|
//NotSupported
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::NotSupported(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x4:
|
|
//InvalidArgument
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::InvalidArgument(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x5:
|
|
//IOError
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::IOError(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x6:
|
|
//MergeInProgress
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::MergeInProgress(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x7:
|
|
//Incomplete
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Incomplete(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x8:
|
|
//ShutdownInProgress
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::ShutdownInProgress(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x9:
|
|
//TimedOut
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::TimedOut(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0xA:
|
|
//Aborted
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Aborted(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0xB:
|
|
//Busy
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Busy(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0xC:
|
|
//Expired
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Expired(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0xD:
|
|
//TryAgain
|
|
status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::TryAgain(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value))));
|
|
break;
|
|
case 0x7F:
|
|
default:
|
|
return nullptr;
|
|
}
|
|
|
|
// delete all local refs
|
|
if (jstate != nullptr) {
|
|
env->DeleteLocalRef(jstate);
|
|
}
|
|
if (jsubCode != nullptr) {
|
|
env->DeleteLocalRef(jsubCode);
|
|
}
|
|
if (jcode != nullptr) {
|
|
env->DeleteLocalRef(jcode);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.RocksDBException
|
|
class RocksDBExceptionJni :
|
|
public JavaException<RocksDBExceptionJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.RocksDBException
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaException::getJClass(env, "org/rocksdb/RocksDBException");
|
|
}
|
|
|
|
/**
|
|
* Create and throw a Java RocksDBException with the provided message
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param msg The message for the exception
|
|
*
|
|
* @return true if an exception was thrown, false otherwise
|
|
*/
|
|
static bool ThrowNew(JNIEnv* env, const std::string& msg) {
|
|
return JavaException::ThrowNew(env, msg);
|
|
}
|
|
|
|
/**
|
|
* Create and throw a Java RocksDBException with the provided status
|
|
*
|
|
* If s->ok() == true, then this function will not throw any exception.
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param s The status for the exception
|
|
*
|
|
* @return true if an exception was thrown, false otherwise
|
|
*/
|
|
static bool ThrowNew(JNIEnv* env, std::unique_ptr<Status>& s) {
|
|
return rocksdb::RocksDBExceptionJni::ThrowNew(env, *(s.get()));
|
|
}
|
|
|
|
/**
|
|
* Create and throw a Java RocksDBException with the provided status
|
|
*
|
|
* If s.ok() == true, then this function will not throw any exception.
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param s The status for the exception
|
|
*
|
|
* @return true if an exception was thrown, false otherwise
|
|
*/
|
|
static bool ThrowNew(JNIEnv* env, const Status& s) {
|
|
assert(!s.ok());
|
|
if (s.ok()) {
|
|
return false;
|
|
}
|
|
|
|
// get the RocksDBException class
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// get the constructor of org.rocksdb.RocksDBException
|
|
jmethodID mid =
|
|
env->GetMethodID(jclazz, "<init>", "(Lorg/rocksdb/Status;)V");
|
|
if(mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/cstr - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// get the Java status object
|
|
jobject jstatus = StatusJni::construct(env, s);
|
|
if(jstatus == nullptr) {
|
|
// exception occcurred
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/StatusJni - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// construct the RocksDBException
|
|
jthrowable rocksdb_exception = reinterpret_cast<jthrowable>(env->NewObject(jclazz, mid, jstatus));
|
|
if(env->ExceptionCheck()) {
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/NewObject - Error: unexpected exception!" << std::endl;
|
|
return true;
|
|
}
|
|
|
|
// throw the RocksDBException
|
|
const jint rs = env->Throw(rocksdb_exception);
|
|
if(rs != JNI_OK) {
|
|
// exception could not be thrown
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew - Fatal: could not throw exception!" << std::endl;
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Create and throw a Java RocksDBException with the provided message
|
|
* and status
|
|
*
|
|
* If s.ok() == true, then this function will not throw any exception.
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param msg The message for the exception
|
|
* @param s The status for the exception
|
|
*
|
|
* @return true if an exception was thrown, false otherwise
|
|
*/
|
|
static bool ThrowNew(JNIEnv* env, const std::string& msg, const Status& s) {
|
|
assert(!s.ok());
|
|
if (s.ok()) {
|
|
return false;
|
|
}
|
|
|
|
// get the RocksDBException class
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// get the constructor of org.rocksdb.RocksDBException
|
|
jmethodID mid =
|
|
env->GetMethodID(jclazz, "<init>", "(Ljava/lang/String;Lorg/rocksdb/Status;)V");
|
|
if(mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/cstr - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
jstring jmsg = env->NewStringUTF(msg.c_str());
|
|
if(jmsg == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/msg - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// get the Java status object
|
|
jobject jstatus = StatusJni::construct(env, s);
|
|
if(jstatus == nullptr) {
|
|
// exception occcurred
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/StatusJni - Error: unexpected exception!" << std::endl;
|
|
if(jmsg != nullptr) {
|
|
env->DeleteLocalRef(jmsg);
|
|
}
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
// construct the RocksDBException
|
|
jthrowable rocksdb_exception = reinterpret_cast<jthrowable>(env->NewObject(jclazz, mid, jmsg, jstatus));
|
|
if(env->ExceptionCheck()) {
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(jmsg != nullptr) {
|
|
env->DeleteLocalRef(jmsg);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew/NewObject - Error: unexpected exception!" << std::endl;
|
|
return true;
|
|
}
|
|
|
|
// throw the RocksDBException
|
|
const jint rs = env->Throw(rocksdb_exception);
|
|
if(rs != JNI_OK) {
|
|
// exception could not be thrown
|
|
std::cerr << "RocksDBExceptionJni::ThrowNew - Fatal: could not throw exception!" << std::endl;
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(jmsg != nullptr) {
|
|
env->DeleteLocalRef(jmsg);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
if(jstatus != nullptr) {
|
|
env->DeleteLocalRef(jstatus);
|
|
}
|
|
if(jmsg != nullptr) {
|
|
env->DeleteLocalRef(jmsg);
|
|
}
|
|
if(rocksdb_exception != nullptr) {
|
|
env->DeleteLocalRef(rocksdb_exception);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: RocksDBException#getStatus
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getStatusMethod(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "getStatus", "()Lorg/rocksdb/Status;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
static std::unique_ptr<rocksdb::Status> toCppStatus(
|
|
JNIEnv* env, jthrowable jrocksdb_exception) {
|
|
if(!env->IsInstanceOf(jrocksdb_exception, getJClass(env))) {
|
|
// not an instance of RocksDBException
|
|
return nullptr;
|
|
}
|
|
|
|
// get the java status object
|
|
jmethodID mid = getStatusMethod(env);
|
|
if(mid == nullptr) {
|
|
// exception occurred accessing class or method
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jstatus = env->CallObjectMethod(jrocksdb_exception, mid);
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
|
|
if(jstatus == nullptr) {
|
|
return nullptr; // no status available
|
|
}
|
|
|
|
return rocksdb::StatusJni::toCppStatus(env, jstatus);
|
|
}
|
|
};
|
|
|
|
// The portal class for java.lang.IllegalArgumentException
|
|
class IllegalArgumentExceptionJni :
|
|
public JavaException<IllegalArgumentExceptionJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.lang.IllegalArgumentException
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaException::getJClass(env, "java/lang/IllegalArgumentException");
|
|
}
|
|
|
|
/**
|
|
* Create and throw a Java IllegalArgumentException with the provided status
|
|
*
|
|
* If s.ok() == true, then this function will not throw any exception.
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param s The status for the exception
|
|
*
|
|
* @return true if an exception was thrown, false otherwise
|
|
*/
|
|
static bool ThrowNew(JNIEnv* env, const Status& s) {
|
|
assert(!s.ok());
|
|
if (s.ok()) {
|
|
return false;
|
|
}
|
|
|
|
// get the IllegalArgumentException class
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
std::cerr << "IllegalArgumentExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl;
|
|
return env->ExceptionCheck();
|
|
}
|
|
|
|
return JavaException::ThrowNew(env, s.ToString());
|
|
}
|
|
};
|
|
|
|
|
|
// The portal class for org.rocksdb.Options
|
|
class OptionsJni : public RocksDBNativeClass<
|
|
rocksdb::Options*, OptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.Options
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/Options");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.DBOptions
|
|
class DBOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::DBOptions*, DBOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.DBOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/DBOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.ColumnFamilyOptions
|
|
class ColumnFamilyOptionsJni
|
|
: public RocksDBNativeClass<rocksdb::ColumnFamilyOptions*,
|
|
ColumnFamilyOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.ColumnFamilyOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/ColumnFamilyOptions");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.ColumnFamilyOptions object with the same
|
|
* properties as the provided C++ rocksdb::ColumnFamilyOptions object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param cfoptions A pointer to rocksdb::ColumnFamilyOptions object
|
|
*
|
|
* @return A reference to a Java org.rocksdb.ColumnFamilyOptions object, or
|
|
* nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env, const ColumnFamilyOptions* cfoptions) {
|
|
auto* cfo = new rocksdb::ColumnFamilyOptions(*cfoptions);
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(jclazz, "<init>", "(J)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jcfd = env->NewObject(jclazz, mid, reinterpret_cast<jlong>(cfo));
|
|
if (env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jcfd;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WriteOptions
|
|
class WriteOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::WriteOptions*, WriteOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WriteOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/WriteOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.ReadOptions
|
|
class ReadOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::ReadOptions*, ReadOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.ReadOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/ReadOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WriteBatch
|
|
class WriteBatchJni : public RocksDBNativeClass<
|
|
rocksdb::WriteBatch*, WriteBatchJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WriteBatch
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/WriteBatch");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.WriteBatch object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param wb A pointer to rocksdb::WriteBatch object
|
|
*
|
|
* @return A reference to a Java org.rocksdb.WriteBatch object, or
|
|
* nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env, const WriteBatch* wb) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(jclazz, "<init>", "(J)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jwb = env->NewObject(jclazz, mid, reinterpret_cast<jlong>(wb));
|
|
if (env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jwb;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WriteBatch.Handler
|
|
class WriteBatchHandlerJni : public RocksDBNativeClass<
|
|
const rocksdb::WriteBatchHandlerJniCallback*,
|
|
WriteBatchHandlerJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WriteBatch.Handler
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/WriteBatch$Handler");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#put
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getPutCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "put", "(I[B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#put
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getPutMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "put", "([B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#merge
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMergeCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "merge", "(I[B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#merge
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMergeMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "merge", "([B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#delete
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getDeleteCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "delete", "(I[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#delete
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getDeleteMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "delete", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#singleDelete
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getSingleDeleteCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "singleDelete", "(I[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#singleDelete
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getSingleDeleteMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "singleDelete", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#deleteRange
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getDeleteRangeCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "deleteRange", "(I[B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#deleteRange
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getDeleteRangeMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "deleteRange", "([B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#logData
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getLogDataMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "logData", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#putBlobIndex
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getPutBlobIndexCfMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "putBlobIndex", "(I[B[B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#markBeginPrepare
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMarkBeginPrepareMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "markBeginPrepare", "()V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#markEndPrepare
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMarkEndPrepareMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "markEndPrepare", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#markNoop
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMarkNoopMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "markNoop", "(Z)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#markRollback
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMarkRollbackMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "markRollback", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#markCommit
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMarkCommitMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "markCommit", "([B)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: WriteBatch.Handler#shouldContinue
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getContinueMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "shouldContinue", "()Z");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
class WriteBatchSavePointJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WriteBatch.SavePoint
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/WriteBatch$SavePoint");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: HistogramData constructor
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getConstructorMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "<init>", "(JJJ)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.WriteBatch.SavePoint object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param savePoint A pointer to rocksdb::WriteBatch::SavePoint object
|
|
*
|
|
* @return A reference to a Java org.rocksdb.WriteBatch.SavePoint object, or
|
|
* nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env, const SavePoint &save_point) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = getConstructorMethodId(env);
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jsave_point = env->NewObject(jclazz, mid,
|
|
static_cast<jlong>(save_point.size),
|
|
static_cast<jlong>(save_point.count),
|
|
static_cast<jlong>(save_point.content_flags));
|
|
if (env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jsave_point;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WriteBatchWithIndex
|
|
class WriteBatchWithIndexJni : public RocksDBNativeClass<
|
|
rocksdb::WriteBatchWithIndex*, WriteBatchWithIndexJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WriteBatchWithIndex
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/WriteBatchWithIndex");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.HistogramData
|
|
class HistogramDataJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.HistogramData
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/HistogramData");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: HistogramData constructor
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getConstructorMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "<init>", "(DDDDD)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.BackupableDBOptions
|
|
class BackupableDBOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::BackupableDBOptions*, BackupableDBOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.BackupableDBOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/BackupableDBOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.BackupEngine
|
|
class BackupEngineJni : public RocksDBNativeClass<
|
|
rocksdb::BackupEngine*, BackupEngineJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.BackupableEngine
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/BackupEngine");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.RocksIterator
|
|
class IteratorJni : public RocksDBNativeClass<
|
|
rocksdb::Iterator*, IteratorJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.RocksIterator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/RocksIterator");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.Filter
|
|
class FilterJni : public RocksDBNativeClass<
|
|
std::shared_ptr<rocksdb::FilterPolicy>*, FilterJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.Filter
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/Filter");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.ColumnFamilyHandle
|
|
class ColumnFamilyHandleJni : public RocksDBNativeClass<
|
|
rocksdb::ColumnFamilyHandle*, ColumnFamilyHandleJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.ColumnFamilyHandle
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/ColumnFamilyHandle");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.FlushOptions
|
|
class FlushOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::FlushOptions*, FlushOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.FlushOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/FlushOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.ComparatorOptions
|
|
class ComparatorOptionsJni : public RocksDBNativeClass<
|
|
rocksdb::ComparatorJniCallbackOptions*, ComparatorOptionsJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.ComparatorOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/ComparatorOptions");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.AbstractCompactionFilterFactory
|
|
class AbstractCompactionFilterFactoryJni : public RocksDBNativeClass<
|
|
const rocksdb::CompactionFilterFactoryJniCallback*,
|
|
AbstractCompactionFilterFactoryJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.AbstractCompactionFilterFactory
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/AbstractCompactionFilterFactory");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: AbstractCompactionFilterFactory#name
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getNameMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(
|
|
jclazz, "name", "()Ljava/lang/String;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: AbstractCompactionFilterFactory#createCompactionFilter
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getCreateCompactionFilterMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz,
|
|
"createCompactionFilter",
|
|
"(ZZ)J");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.AbstractTransactionNotifier
|
|
class AbstractTransactionNotifierJni : public RocksDBNativeClass<
|
|
const rocksdb::TransactionNotifierJniCallback*,
|
|
AbstractTransactionNotifierJni> {
|
|
public:
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/AbstractTransactionNotifier");
|
|
}
|
|
|
|
// Get the java method `snapshotCreated`
|
|
// of org.rocksdb.AbstractTransactionNotifier.
|
|
static jmethodID getSnapshotCreatedMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "snapshotCreated", "(J)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.AbstractComparator
|
|
class AbstractComparatorJni : public RocksDBNativeClass<
|
|
const rocksdb::BaseComparatorJniCallback*,
|
|
AbstractComparatorJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.AbstractComparator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env,
|
|
"org/rocksdb/AbstractComparator");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Comparator#name
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getNameMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "name", "()Ljava/lang/String;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Comparator#compare
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getCompareMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "compare",
|
|
"(Lorg/rocksdb/AbstractSlice;Lorg/rocksdb/AbstractSlice;)I");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Comparator#findShortestSeparator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getFindShortestSeparatorMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "findShortestSeparator",
|
|
"(Ljava/lang/String;Lorg/rocksdb/AbstractSlice;)Ljava/lang/String;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Comparator#findShortSuccessor
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getFindShortSuccessorMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "findShortSuccessor",
|
|
"(Ljava/lang/String;)Ljava/lang/String;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.AbstractSlice
|
|
class AbstractSliceJni : public NativeRocksMutableObject<
|
|
const rocksdb::Slice*, AbstractSliceJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.AbstractSlice
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/AbstractSlice");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.Slice
|
|
class SliceJni : public NativeRocksMutableObject<
|
|
const rocksdb::Slice*, AbstractSliceJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.Slice
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/Slice");
|
|
}
|
|
|
|
/**
|
|
* Constructs a Slice object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to a Java Slice object, or a nullptr if an
|
|
* exception occurs
|
|
*/
|
|
static jobject construct0(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "<init>", "()V");
|
|
if(mid == nullptr) {
|
|
// exception occurred accessing method
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jslice = env->NewObject(jclazz, mid);
|
|
if(env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jslice;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.DirectSlice
|
|
class DirectSliceJni : public NativeRocksMutableObject<
|
|
const rocksdb::Slice*, AbstractSliceJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.DirectSlice
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/DirectSlice");
|
|
}
|
|
|
|
/**
|
|
* Constructs a DirectSlice object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to a Java DirectSlice object, or a nullptr if an
|
|
* exception occurs
|
|
*/
|
|
static jobject construct0(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "<init>", "()V");
|
|
if(mid == nullptr) {
|
|
// exception occurred accessing method
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jdirect_slice = env->NewObject(jclazz, mid);
|
|
if(env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jdirect_slice;
|
|
}
|
|
};
|
|
|
|
// The portal class for java.util.List
|
|
class ListJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.util.List
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getListClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/util/List");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Class java.util.ArrayList
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getArrayListClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/util/ArrayList");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Class java.util.Iterator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getIteratorClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/util/Iterator");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: List#iterator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getIteratorMethod(JNIEnv* env) {
|
|
jclass jlist_clazz = getListClass(env);
|
|
if(jlist_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jlist_clazz, "iterator", "()Ljava/util/Iterator;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Iterator#hasNext
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getHasNextMethod(JNIEnv* env) {
|
|
jclass jiterator_clazz = getIteratorClass(env);
|
|
if(jiterator_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jiterator_clazz, "hasNext", "()Z");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Iterator#next
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getNextMethod(JNIEnv* env) {
|
|
jclass jiterator_clazz = getIteratorClass(env);
|
|
if(jiterator_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jiterator_clazz, "next", "()Ljava/lang/Object;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: ArrayList constructor
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getArrayListConstructorMethodId(JNIEnv* env) {
|
|
jclass jarray_list_clazz = getArrayListClass(env);
|
|
if(jarray_list_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
static jmethodID mid =
|
|
env->GetMethodID(jarray_list_clazz, "<init>", "(I)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: List#add
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getListAddMethodId(JNIEnv* env) {
|
|
jclass jlist_clazz = getListClass(env);
|
|
if(jlist_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jlist_clazz, "add", "(Ljava/lang/Object;)Z");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for java.lang.Byte
|
|
class ByteJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.lang.Byte
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/lang/Byte");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Class byte[]
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getArrayJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "[B");
|
|
}
|
|
|
|
/**
|
|
* Creates a new 2-dimensional Java Byte Array byte[][]
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param len The size of the first dimension
|
|
*
|
|
* @return A reference to the Java byte[][] or nullptr if an exception occurs
|
|
*/
|
|
static jobjectArray new2dByteArray(JNIEnv* env, const jsize len) {
|
|
jclass clazz = getArrayJClass(env);
|
|
if(clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
return env->NewObjectArray(len, clazz, nullptr);
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Byte#byteValue
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retrieved
|
|
*/
|
|
static jmethodID getByteValueMethod(JNIEnv* env) {
|
|
jclass clazz = getJClass(env);
|
|
if(clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(clazz, "byteValue", "()B");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Calls the Java Method: Byte#valueOf, returning a constructed Byte jobject
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A constructing Byte object or nullptr if the class or method id could not
|
|
* be retrieved, or an exception occurred
|
|
*/
|
|
static jobject valueOf(JNIEnv* env, jbyte jprimitive_byte) {
|
|
jclass clazz = getJClass(env);
|
|
if (clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetStaticMethodID(clazz, "valueOf", "(B)Ljava/lang/Byte;");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
const jobject jbyte_obj =
|
|
env->CallStaticObjectMethod(clazz, mid, jprimitive_byte);
|
|
if (env->ExceptionCheck()) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
|
|
return jbyte_obj;
|
|
}
|
|
|
|
};
|
|
|
|
// The portal class for java.lang.StringBuilder
|
|
class StringBuilderJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.lang.StringBuilder
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/lang/StringBuilder");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: StringBuilder#append
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getListAddMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "append",
|
|
"(Ljava/lang/String;)Ljava/lang/StringBuilder;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Appends a C-style string to a StringBuilder
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param jstring_builder Reference to a java.lang.StringBuilder
|
|
* @param c_str A C-style string to append to the StringBuilder
|
|
*
|
|
* @return A reference to the updated StringBuilder, or a nullptr if
|
|
* an exception occurs
|
|
*/
|
|
static jobject append(JNIEnv* env, jobject jstring_builder,
|
|
const char* c_str) {
|
|
jmethodID mid = getListAddMethodId(env);
|
|
if(mid == nullptr) {
|
|
// exception occurred accessing class or method
|
|
return nullptr;
|
|
}
|
|
|
|
jstring new_value_str = env->NewStringUTF(c_str);
|
|
if(new_value_str == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jresult_string_builder =
|
|
env->CallObjectMethod(jstring_builder, mid, new_value_str);
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred
|
|
env->DeleteLocalRef(new_value_str);
|
|
return nullptr;
|
|
}
|
|
|
|
return jresult_string_builder;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.BackupInfo
|
|
class BackupInfoJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.BackupInfo
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/BackupInfo");
|
|
}
|
|
|
|
/**
|
|
* Constructs a BackupInfo object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param backup_id id of the backup
|
|
* @param timestamp timestamp of the backup
|
|
* @param size size of the backup
|
|
* @param number_files number of files related to the backup
|
|
* @param app_metadata application specific metadata
|
|
*
|
|
* @return A reference to a Java BackupInfo object, or a nullptr if an
|
|
* exception occurs
|
|
*/
|
|
static jobject construct0(JNIEnv* env, uint32_t backup_id, int64_t timestamp,
|
|
uint64_t size, uint32_t number_files,
|
|
const std::string& app_metadata) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "<init>", "(IJJILjava/lang/String;)V");
|
|
if(mid == nullptr) {
|
|
// exception occurred accessing method
|
|
return nullptr;
|
|
}
|
|
|
|
jstring japp_metadata = nullptr;
|
|
if (app_metadata != nullptr) {
|
|
japp_metadata = env->NewStringUTF(app_metadata.c_str());
|
|
if (japp_metadata == nullptr) {
|
|
// exception occurred creating java string
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
jobject jbackup_info = env->NewObject(jclazz, mid, backup_id, timestamp,
|
|
size, number_files, japp_metadata);
|
|
if(env->ExceptionCheck()) {
|
|
env->DeleteLocalRef(japp_metadata);
|
|
return nullptr;
|
|
}
|
|
|
|
return jbackup_info;
|
|
}
|
|
};
|
|
|
|
class BackupInfoListJni {
|
|
public:
|
|
/**
|
|
* Converts a C++ std::vector<BackupInfo> object to
|
|
* a Java ArrayList<org.rocksdb.BackupInfo> object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param backup_infos A vector of BackupInfo
|
|
*
|
|
* @return Either a reference to a Java ArrayList object, or a nullptr
|
|
* if an exception occurs
|
|
*/
|
|
static jobject getBackupInfo(JNIEnv* env,
|
|
std::vector<BackupInfo> backup_infos) {
|
|
jclass jarray_list_clazz = rocksdb::ListJni::getArrayListClass(env);
|
|
if(jarray_list_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID cstr_mid = rocksdb::ListJni::getArrayListConstructorMethodId(env);
|
|
if(cstr_mid == nullptr) {
|
|
// exception occurred accessing method
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID add_mid = rocksdb::ListJni::getListAddMethodId(env);
|
|
if(add_mid == nullptr) {
|
|
// exception occurred accessing method
|
|
return nullptr;
|
|
}
|
|
|
|
// create java list
|
|
jobject jbackup_info_handle_list =
|
|
env->NewObject(jarray_list_clazz, cstr_mid, backup_infos.size());
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred constructing object
|
|
return nullptr;
|
|
}
|
|
|
|
// insert in java list
|
|
auto end = backup_infos.end();
|
|
for (auto it = backup_infos.begin(); it != end; ++it) {
|
|
auto backup_info = *it;
|
|
|
|
jobject obj = rocksdb::BackupInfoJni::construct0(
|
|
env, backup_info.backup_id, backup_info.timestamp, backup_info.size,
|
|
backup_info.number_files, backup_info.app_metadata);
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred constructing object
|
|
if(obj != nullptr) {
|
|
env->DeleteLocalRef(obj);
|
|
}
|
|
if(jbackup_info_handle_list != nullptr) {
|
|
env->DeleteLocalRef(jbackup_info_handle_list);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
jboolean rs =
|
|
env->CallBooleanMethod(jbackup_info_handle_list, add_mid, obj);
|
|
if(env->ExceptionCheck() || rs == JNI_FALSE) {
|
|
// exception occurred calling method, or could not add
|
|
if(obj != nullptr) {
|
|
env->DeleteLocalRef(obj);
|
|
}
|
|
if(jbackup_info_handle_list != nullptr) {
|
|
env->DeleteLocalRef(jbackup_info_handle_list);
|
|
}
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return jbackup_info_handle_list;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WBWIRocksIterator
|
|
class WBWIRocksIteratorJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WBWIRocksIterator
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Field: WBWIRocksIterator#entry
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Field ID or nullptr if the class or field id could not
|
|
* be retieved
|
|
*/
|
|
static jfieldID getWriteEntryField(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jfieldID fid =
|
|
env->GetFieldID(jclazz, "entry",
|
|
"Lorg/rocksdb/WBWIRocksIterator$WriteEntry;");
|
|
assert(fid != nullptr);
|
|
return fid;
|
|
}
|
|
|
|
/**
|
|
* Gets the value of the WBWIRocksIterator#entry
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param jwbwi_rocks_iterator A reference to a WBWIIterator
|
|
*
|
|
* @return A reference to a Java WBWIRocksIterator.WriteEntry object, or
|
|
* a nullptr if an exception occurs
|
|
*/
|
|
static jobject getWriteEntry(JNIEnv* env, jobject jwbwi_rocks_iterator) {
|
|
assert(jwbwi_rocks_iterator != nullptr);
|
|
|
|
jfieldID jwrite_entry_field = getWriteEntryField(env);
|
|
if(jwrite_entry_field == nullptr) {
|
|
// exception occurred accessing the field
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jwe = env->GetObjectField(jwbwi_rocks_iterator, jwrite_entry_field);
|
|
assert(jwe != nullptr);
|
|
return jwe;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WBWIRocksIterator.WriteType
|
|
class WriteTypeJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the PUT enum field value of WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject PUT(JNIEnv* env) {
|
|
return getEnum(env, "PUT");
|
|
}
|
|
|
|
/**
|
|
* Get the MERGE enum field value of WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject MERGE(JNIEnv* env) {
|
|
return getEnum(env, "MERGE");
|
|
}
|
|
|
|
/**
|
|
* Get the DELETE enum field value of WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject DELETE(JNIEnv* env) {
|
|
return getEnum(env, "DELETE");
|
|
}
|
|
|
|
/**
|
|
* Get the LOG enum field value of WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject LOG(JNIEnv* env) {
|
|
return getEnum(env, "LOG");
|
|
}
|
|
|
|
// Returns the equivalent org.rocksdb.WBWIRocksIterator.WriteType for the
|
|
// provided C++ rocksdb::WriteType enum
|
|
static jbyte toJavaWriteType(const rocksdb::WriteType& writeType) {
|
|
switch (writeType) {
|
|
case rocksdb::WriteType::kPutRecord:
|
|
return 0x0;
|
|
case rocksdb::WriteType::kMergeRecord:
|
|
return 0x1;
|
|
case rocksdb::WriteType::kDeleteRecord:
|
|
return 0x2;
|
|
case rocksdb::WriteType::kSingleDeleteRecord:
|
|
return 0x3;
|
|
case rocksdb::WriteType::kDeleteRangeRecord:
|
|
return 0x4;
|
|
case rocksdb::WriteType::kLogDataRecord:
|
|
return 0x5;
|
|
case rocksdb::WriteType::kXIDRecord:
|
|
return 0x6;
|
|
default:
|
|
return 0x7F; // undefined
|
|
}
|
|
}
|
|
|
|
private:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator$WriteType");
|
|
}
|
|
|
|
/**
|
|
* Get an enum field of org.rocksdb.WBWIRocksIterator.WriteType
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param name The name of the enum field
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject getEnum(JNIEnv* env, const char name[]) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jfieldID jfid =
|
|
env->GetStaticFieldID(jclazz, name,
|
|
"Lorg/rocksdb/WBWIRocksIterator$WriteType;");
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred while getting field
|
|
return nullptr;
|
|
} else if(jfid == nullptr) {
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jwrite_type = env->GetStaticObjectField(jclazz, jfid);
|
|
assert(jwrite_type != nullptr);
|
|
return jwrite_type;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WBWIRocksIterator.WriteEntry
|
|
class WriteEntryJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.WBWIRocksIterator.WriteEntry
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator$WriteEntry");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.InfoLogLevel
|
|
class InfoLogLevelJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the DEBUG_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject DEBUG_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "DEBUG_LEVEL");
|
|
}
|
|
|
|
/**
|
|
* Get the INFO_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject INFO_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "INFO_LEVEL");
|
|
}
|
|
|
|
/**
|
|
* Get the WARN_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject WARN_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "WARN_LEVEL");
|
|
}
|
|
|
|
/**
|
|
* Get the ERROR_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject ERROR_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "ERROR_LEVEL");
|
|
}
|
|
|
|
/**
|
|
* Get the FATAL_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject FATAL_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "FATAL_LEVEL");
|
|
}
|
|
|
|
/**
|
|
* Get the HEADER_LEVEL enum field value of InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject HEADER_LEVEL(JNIEnv* env) {
|
|
return getEnum(env, "HEADER_LEVEL");
|
|
}
|
|
|
|
private:
|
|
/**
|
|
* Get the Java Class org.rocksdb.InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/InfoLogLevel");
|
|
}
|
|
|
|
/**
|
|
* Get an enum field of org.rocksdb.InfoLogLevel
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param name The name of the enum field
|
|
*
|
|
* @return A reference to the enum field value or a nullptr if
|
|
* the enum field value could not be retrieved
|
|
*/
|
|
static jobject getEnum(JNIEnv* env, const char name[]) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jfieldID jfid =
|
|
env->GetStaticFieldID(jclazz, name, "Lorg/rocksdb/InfoLogLevel;");
|
|
if(env->ExceptionCheck()) {
|
|
// exception occurred while getting field
|
|
return nullptr;
|
|
} else if(jfid == nullptr) {
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jinfo_log_level = env->GetStaticObjectField(jclazz, jfid);
|
|
assert(jinfo_log_level != nullptr);
|
|
return jinfo_log_level;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.Logger
|
|
class LoggerJni : public RocksDBNativeClass<
|
|
std::shared_ptr<rocksdb::LoggerJniCallback>*, LoggerJni> {
|
|
public:
|
|
/**
|
|
* Get the Java Class org/rocksdb/Logger
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return RocksDBNativeClass::getJClass(env, "org/rocksdb/Logger");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Logger#log
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getLogMethodId(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jclazz, "log",
|
|
"(Lorg/rocksdb/InfoLogLevel;Ljava/lang/String;)V");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TransactionLogIterator.BatchResult
|
|
class BatchResultJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.TransactionLogIterator.BatchResult
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,
|
|
"org/rocksdb/TransactionLogIterator$BatchResult");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.TransactionLogIterator.BatchResult object
|
|
* with the same properties as the provided C++ rocksdb::BatchResult object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param batch_result The rocksdb::BatchResult object
|
|
*
|
|
* @return A reference to a Java
|
|
* org.rocksdb.TransactionLogIterator.BatchResult object,
|
|
* or nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env,
|
|
rocksdb::BatchResult& batch_result) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(
|
|
jclazz, "<init>", "(JJ)V");
|
|
if(mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jbatch_result = env->NewObject(jclazz, mid,
|
|
batch_result.sequence, batch_result.writeBatchPtr.get());
|
|
if(jbatch_result == nullptr) {
|
|
// exception thrown: InstantiationException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
batch_result.writeBatchPtr.release();
|
|
return jbatch_result;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.BottommostLevelCompaction
|
|
class BottommostLevelCompactionJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.BottommostLevelCompaction for the provided
|
|
// C++ rocksdb::BottommostLevelCompaction enum
|
|
static jint toJavaBottommostLevelCompaction(
|
|
const rocksdb::BottommostLevelCompaction& bottommost_level_compaction) {
|
|
switch(bottommost_level_compaction) {
|
|
case rocksdb::BottommostLevelCompaction::kSkip:
|
|
return 0x0;
|
|
case rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter:
|
|
return 0x1;
|
|
case rocksdb::BottommostLevelCompaction::kForce:
|
|
return 0x2;
|
|
default:
|
|
return 0x7F; // undefined
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::BottommostLevelCompaction enum for the
|
|
// provided Java org.rocksdb.BottommostLevelCompaction
|
|
static rocksdb::BottommostLevelCompaction toCppBottommostLevelCompaction(
|
|
jint bottommost_level_compaction) {
|
|
switch(bottommost_level_compaction) {
|
|
case 0x0:
|
|
return rocksdb::BottommostLevelCompaction::kSkip;
|
|
case 0x1:
|
|
return rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter;
|
|
case 0x2:
|
|
return rocksdb::BottommostLevelCompaction::kForce;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.CompactionStopStyle
|
|
class CompactionStopStyleJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.CompactionStopStyle for the provided
|
|
// C++ rocksdb::CompactionStopStyle enum
|
|
static jbyte toJavaCompactionStopStyle(
|
|
const rocksdb::CompactionStopStyle& compaction_stop_style) {
|
|
switch(compaction_stop_style) {
|
|
case rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize:
|
|
return 0x0;
|
|
case rocksdb::CompactionStopStyle::kCompactionStopStyleTotalSize:
|
|
return 0x1;
|
|
default:
|
|
return 0x7F; // undefined
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::CompactionStopStyle enum for the
|
|
// provided Java org.rocksdb.CompactionStopStyle
|
|
static rocksdb::CompactionStopStyle toCppCompactionStopStyle(
|
|
jbyte jcompaction_stop_style) {
|
|
switch(jcompaction_stop_style) {
|
|
case 0x0:
|
|
return rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize;
|
|
case 0x1:
|
|
return rocksdb::CompactionStopStyle::kCompactionStopStyleTotalSize;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.CompressionType
|
|
class CompressionTypeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.CompressionType for the provided
|
|
// C++ rocksdb::CompressionType enum
|
|
static jbyte toJavaCompressionType(
|
|
const rocksdb::CompressionType& compression_type) {
|
|
switch(compression_type) {
|
|
case rocksdb::CompressionType::kNoCompression:
|
|
return 0x0;
|
|
case rocksdb::CompressionType::kSnappyCompression:
|
|
return 0x1;
|
|
case rocksdb::CompressionType::kZlibCompression:
|
|
return 0x2;
|
|
case rocksdb::CompressionType::kBZip2Compression:
|
|
return 0x3;
|
|
case rocksdb::CompressionType::kLZ4Compression:
|
|
return 0x4;
|
|
case rocksdb::CompressionType::kLZ4HCCompression:
|
|
return 0x5;
|
|
case rocksdb::CompressionType::kXpressCompression:
|
|
return 0x6;
|
|
case rocksdb::CompressionType::kZSTD:
|
|
return 0x7;
|
|
case rocksdb::CompressionType::kDisableCompressionOption:
|
|
default:
|
|
return 0x7F;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::CompressionType enum for the
|
|
// provided Java org.rocksdb.CompressionType
|
|
static rocksdb::CompressionType toCppCompressionType(
|
|
jbyte jcompression_type) {
|
|
switch(jcompression_type) {
|
|
case 0x0:
|
|
return rocksdb::CompressionType::kNoCompression;
|
|
case 0x1:
|
|
return rocksdb::CompressionType::kSnappyCompression;
|
|
case 0x2:
|
|
return rocksdb::CompressionType::kZlibCompression;
|
|
case 0x3:
|
|
return rocksdb::CompressionType::kBZip2Compression;
|
|
case 0x4:
|
|
return rocksdb::CompressionType::kLZ4Compression;
|
|
case 0x5:
|
|
return rocksdb::CompressionType::kLZ4HCCompression;
|
|
case 0x6:
|
|
return rocksdb::CompressionType::kXpressCompression;
|
|
case 0x7:
|
|
return rocksdb::CompressionType::kZSTD;
|
|
case 0x7F:
|
|
default:
|
|
return rocksdb::CompressionType::kDisableCompressionOption;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.CompactionPriority
|
|
class CompactionPriorityJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.CompactionPriority for the provided
|
|
// C++ rocksdb::CompactionPri enum
|
|
static jbyte toJavaCompactionPriority(
|
|
const rocksdb::CompactionPri& compaction_priority) {
|
|
switch(compaction_priority) {
|
|
case rocksdb::CompactionPri::kByCompensatedSize:
|
|
return 0x0;
|
|
case rocksdb::CompactionPri::kOldestLargestSeqFirst:
|
|
return 0x1;
|
|
case rocksdb::CompactionPri::kOldestSmallestSeqFirst:
|
|
return 0x2;
|
|
case rocksdb::CompactionPri::kMinOverlappingRatio:
|
|
return 0x3;
|
|
default:
|
|
return 0x0; // undefined
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::CompactionPri enum for the
|
|
// provided Java org.rocksdb.CompactionPriority
|
|
static rocksdb::CompactionPri toCppCompactionPriority(
|
|
jbyte jcompaction_priority) {
|
|
switch(jcompaction_priority) {
|
|
case 0x0:
|
|
return rocksdb::CompactionPri::kByCompensatedSize;
|
|
case 0x1:
|
|
return rocksdb::CompactionPri::kOldestLargestSeqFirst;
|
|
case 0x2:
|
|
return rocksdb::CompactionPri::kOldestSmallestSeqFirst;
|
|
case 0x3:
|
|
return rocksdb::CompactionPri::kMinOverlappingRatio;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::CompactionPri::kByCompensatedSize;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.AccessHint
|
|
class AccessHintJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.AccessHint for the provided
|
|
// C++ rocksdb::DBOptions::AccessHint enum
|
|
static jbyte toJavaAccessHint(
|
|
const rocksdb::DBOptions::AccessHint& access_hint) {
|
|
switch(access_hint) {
|
|
case rocksdb::DBOptions::AccessHint::NONE:
|
|
return 0x0;
|
|
case rocksdb::DBOptions::AccessHint::NORMAL:
|
|
return 0x1;
|
|
case rocksdb::DBOptions::AccessHint::SEQUENTIAL:
|
|
return 0x2;
|
|
case rocksdb::DBOptions::AccessHint::WILLNEED:
|
|
return 0x3;
|
|
default:
|
|
// undefined/default
|
|
return 0x1;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::DBOptions::AccessHint enum for the
|
|
// provided Java org.rocksdb.AccessHint
|
|
static rocksdb::DBOptions::AccessHint toCppAccessHint(jbyte jaccess_hint) {
|
|
switch(jaccess_hint) {
|
|
case 0x0:
|
|
return rocksdb::DBOptions::AccessHint::NONE;
|
|
case 0x1:
|
|
return rocksdb::DBOptions::AccessHint::NORMAL;
|
|
case 0x2:
|
|
return rocksdb::DBOptions::AccessHint::SEQUENTIAL;
|
|
case 0x3:
|
|
return rocksdb::DBOptions::AccessHint::WILLNEED;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::DBOptions::AccessHint::NORMAL;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.WALRecoveryMode
|
|
class WALRecoveryModeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.WALRecoveryMode for the provided
|
|
// C++ rocksdb::WALRecoveryMode enum
|
|
static jbyte toJavaWALRecoveryMode(
|
|
const rocksdb::WALRecoveryMode& wal_recovery_mode) {
|
|
switch(wal_recovery_mode) {
|
|
case rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords:
|
|
return 0x0;
|
|
case rocksdb::WALRecoveryMode::kAbsoluteConsistency:
|
|
return 0x1;
|
|
case rocksdb::WALRecoveryMode::kPointInTimeRecovery:
|
|
return 0x2;
|
|
case rocksdb::WALRecoveryMode::kSkipAnyCorruptedRecords:
|
|
return 0x3;
|
|
default:
|
|
// undefined/default
|
|
return 0x2;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::WALRecoveryMode enum for the
|
|
// provided Java org.rocksdb.WALRecoveryMode
|
|
static rocksdb::WALRecoveryMode toCppWALRecoveryMode(jbyte jwal_recovery_mode) {
|
|
switch(jwal_recovery_mode) {
|
|
case 0x0:
|
|
return rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords;
|
|
case 0x1:
|
|
return rocksdb::WALRecoveryMode::kAbsoluteConsistency;
|
|
case 0x2:
|
|
return rocksdb::WALRecoveryMode::kPointInTimeRecovery;
|
|
case 0x3:
|
|
return rocksdb::WALRecoveryMode::kSkipAnyCorruptedRecords;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::WALRecoveryMode::kPointInTimeRecovery;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TickerType
|
|
class TickerTypeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.TickerType for the provided
|
|
// C++ rocksdb::Tickers enum
|
|
static jbyte toJavaTickerType(
|
|
const rocksdb::Tickers& tickers) {
|
|
switch(tickers) {
|
|
case rocksdb::Tickers::BLOCK_CACHE_MISS:
|
|
return 0x0;
|
|
case rocksdb::Tickers::BLOCK_CACHE_HIT:
|
|
return 0x1;
|
|
case rocksdb::Tickers::BLOCK_CACHE_ADD:
|
|
return 0x2;
|
|
case rocksdb::Tickers::BLOCK_CACHE_ADD_FAILURES:
|
|
return 0x3;
|
|
case rocksdb::Tickers::BLOCK_CACHE_INDEX_MISS:
|
|
return 0x4;
|
|
case rocksdb::Tickers::BLOCK_CACHE_INDEX_HIT:
|
|
return 0x5;
|
|
case rocksdb::Tickers::BLOCK_CACHE_INDEX_ADD:
|
|
return 0x6;
|
|
case rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_INSERT:
|
|
return 0x7;
|
|
case rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_EVICT:
|
|
return 0x8;
|
|
case rocksdb::Tickers::BLOCK_CACHE_FILTER_MISS:
|
|
return 0x9;
|
|
case rocksdb::Tickers::BLOCK_CACHE_FILTER_HIT:
|
|
return 0xA;
|
|
case rocksdb::Tickers::BLOCK_CACHE_FILTER_ADD:
|
|
return 0xB;
|
|
case rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_INSERT:
|
|
return 0xC;
|
|
case rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_EVICT:
|
|
return 0xD;
|
|
case rocksdb::Tickers::BLOCK_CACHE_DATA_MISS:
|
|
return 0xE;
|
|
case rocksdb::Tickers::BLOCK_CACHE_DATA_HIT:
|
|
return 0xF;
|
|
case rocksdb::Tickers::BLOCK_CACHE_DATA_ADD:
|
|
return 0x10;
|
|
case rocksdb::Tickers::BLOCK_CACHE_DATA_BYTES_INSERT:
|
|
return 0x11;
|
|
case rocksdb::Tickers::BLOCK_CACHE_BYTES_READ:
|
|
return 0x12;
|
|
case rocksdb::Tickers::BLOCK_CACHE_BYTES_WRITE:
|
|
return 0x13;
|
|
case rocksdb::Tickers::BLOOM_FILTER_USEFUL:
|
|
return 0x14;
|
|
case rocksdb::Tickers::PERSISTENT_CACHE_HIT:
|
|
return 0x15;
|
|
case rocksdb::Tickers::PERSISTENT_CACHE_MISS:
|
|
return 0x16;
|
|
case rocksdb::Tickers::SIM_BLOCK_CACHE_HIT:
|
|
return 0x17;
|
|
case rocksdb::Tickers::SIM_BLOCK_CACHE_MISS:
|
|
return 0x18;
|
|
case rocksdb::Tickers::MEMTABLE_HIT:
|
|
return 0x19;
|
|
case rocksdb::Tickers::MEMTABLE_MISS:
|
|
return 0x1A;
|
|
case rocksdb::Tickers::GET_HIT_L0:
|
|
return 0x1B;
|
|
case rocksdb::Tickers::GET_HIT_L1:
|
|
return 0x1C;
|
|
case rocksdb::Tickers::GET_HIT_L2_AND_UP:
|
|
return 0x1D;
|
|
case rocksdb::Tickers::COMPACTION_KEY_DROP_NEWER_ENTRY:
|
|
return 0x1E;
|
|
case rocksdb::Tickers::COMPACTION_KEY_DROP_OBSOLETE:
|
|
return 0x1F;
|
|
case rocksdb::Tickers::COMPACTION_KEY_DROP_RANGE_DEL:
|
|
return 0x20;
|
|
case rocksdb::Tickers::COMPACTION_KEY_DROP_USER:
|
|
return 0x21;
|
|
case rocksdb::Tickers::COMPACTION_RANGE_DEL_DROP_OBSOLETE:
|
|
return 0x22;
|
|
case rocksdb::Tickers::NUMBER_KEYS_WRITTEN:
|
|
return 0x23;
|
|
case rocksdb::Tickers::NUMBER_KEYS_READ:
|
|
return 0x24;
|
|
case rocksdb::Tickers::NUMBER_KEYS_UPDATED:
|
|
return 0x25;
|
|
case rocksdb::Tickers::BYTES_WRITTEN:
|
|
return 0x26;
|
|
case rocksdb::Tickers::BYTES_READ:
|
|
return 0x27;
|
|
case rocksdb::Tickers::NUMBER_DB_SEEK:
|
|
return 0x28;
|
|
case rocksdb::Tickers::NUMBER_DB_NEXT:
|
|
return 0x29;
|
|
case rocksdb::Tickers::NUMBER_DB_PREV:
|
|
return 0x2A;
|
|
case rocksdb::Tickers::NUMBER_DB_SEEK_FOUND:
|
|
return 0x2B;
|
|
case rocksdb::Tickers::NUMBER_DB_NEXT_FOUND:
|
|
return 0x2C;
|
|
case rocksdb::Tickers::NUMBER_DB_PREV_FOUND:
|
|
return 0x2D;
|
|
case rocksdb::Tickers::ITER_BYTES_READ:
|
|
return 0x2E;
|
|
case rocksdb::Tickers::NO_FILE_CLOSES:
|
|
return 0x2F;
|
|
case rocksdb::Tickers::NO_FILE_OPENS:
|
|
return 0x30;
|
|
case rocksdb::Tickers::NO_FILE_ERRORS:
|
|
return 0x31;
|
|
case rocksdb::Tickers::STALL_L0_SLOWDOWN_MICROS:
|
|
return 0x32;
|
|
case rocksdb::Tickers::STALL_MEMTABLE_COMPACTION_MICROS:
|
|
return 0x33;
|
|
case rocksdb::Tickers::STALL_L0_NUM_FILES_MICROS:
|
|
return 0x34;
|
|
case rocksdb::Tickers::STALL_MICROS:
|
|
return 0x35;
|
|
case rocksdb::Tickers::DB_MUTEX_WAIT_MICROS:
|
|
return 0x36;
|
|
case rocksdb::Tickers::RATE_LIMIT_DELAY_MILLIS:
|
|
return 0x37;
|
|
case rocksdb::Tickers::NO_ITERATORS:
|
|
return 0x38;
|
|
case rocksdb::Tickers::NUMBER_MULTIGET_CALLS:
|
|
return 0x39;
|
|
case rocksdb::Tickers::NUMBER_MULTIGET_KEYS_READ:
|
|
return 0x3A;
|
|
case rocksdb::Tickers::NUMBER_MULTIGET_BYTES_READ:
|
|
return 0x3B;
|
|
case rocksdb::Tickers::NUMBER_FILTERED_DELETES:
|
|
return 0x3C;
|
|
case rocksdb::Tickers::NUMBER_MERGE_FAILURES:
|
|
return 0x3D;
|
|
case rocksdb::Tickers::BLOOM_FILTER_PREFIX_CHECKED:
|
|
return 0x3E;
|
|
case rocksdb::Tickers::BLOOM_FILTER_PREFIX_USEFUL:
|
|
return 0x3F;
|
|
case rocksdb::Tickers::NUMBER_OF_RESEEKS_IN_ITERATION:
|
|
return 0x40;
|
|
case rocksdb::Tickers::GET_UPDATES_SINCE_CALLS:
|
|
return 0x41;
|
|
case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_MISS:
|
|
return 0x42;
|
|
case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_HIT:
|
|
return 0x43;
|
|
case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD:
|
|
return 0x44;
|
|
case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD_FAILURES:
|
|
return 0x45;
|
|
case rocksdb::Tickers::WAL_FILE_SYNCED:
|
|
return 0x46;
|
|
case rocksdb::Tickers::WAL_FILE_BYTES:
|
|
return 0x47;
|
|
case rocksdb::Tickers::WRITE_DONE_BY_SELF:
|
|
return 0x48;
|
|
case rocksdb::Tickers::WRITE_DONE_BY_OTHER:
|
|
return 0x49;
|
|
case rocksdb::Tickers::WRITE_TIMEDOUT:
|
|
return 0x4A;
|
|
case rocksdb::Tickers::WRITE_WITH_WAL:
|
|
return 0x4B;
|
|
case rocksdb::Tickers::COMPACT_READ_BYTES:
|
|
return 0x4C;
|
|
case rocksdb::Tickers::COMPACT_WRITE_BYTES:
|
|
return 0x4D;
|
|
case rocksdb::Tickers::FLUSH_WRITE_BYTES:
|
|
return 0x4E;
|
|
case rocksdb::Tickers::NUMBER_DIRECT_LOAD_TABLE_PROPERTIES:
|
|
return 0x4F;
|
|
case rocksdb::Tickers::NUMBER_SUPERVERSION_ACQUIRES:
|
|
return 0x50;
|
|
case rocksdb::Tickers::NUMBER_SUPERVERSION_RELEASES:
|
|
return 0x51;
|
|
case rocksdb::Tickers::NUMBER_SUPERVERSION_CLEANUPS:
|
|
return 0x52;
|
|
case rocksdb::Tickers::NUMBER_BLOCK_COMPRESSED:
|
|
return 0x53;
|
|
case rocksdb::Tickers::NUMBER_BLOCK_DECOMPRESSED:
|
|
return 0x54;
|
|
case rocksdb::Tickers::NUMBER_BLOCK_NOT_COMPRESSED:
|
|
return 0x55;
|
|
case rocksdb::Tickers::MERGE_OPERATION_TOTAL_TIME:
|
|
return 0x56;
|
|
case rocksdb::Tickers::FILTER_OPERATION_TOTAL_TIME:
|
|
return 0x57;
|
|
case rocksdb::Tickers::ROW_CACHE_HIT:
|
|
return 0x58;
|
|
case rocksdb::Tickers::ROW_CACHE_MISS:
|
|
return 0x59;
|
|
case rocksdb::Tickers::READ_AMP_ESTIMATE_USEFUL_BYTES:
|
|
return 0x5A;
|
|
case rocksdb::Tickers::READ_AMP_TOTAL_READ_BYTES:
|
|
return 0x5B;
|
|
case rocksdb::Tickers::NUMBER_RATE_LIMITER_DRAINS:
|
|
return 0x5C;
|
|
case rocksdb::Tickers::NUMBER_ITER_SKIP:
|
|
return 0x5D;
|
|
case rocksdb::Tickers::NUMBER_MULTIGET_KEYS_FOUND:
|
|
return 0x5E;
|
|
case rocksdb::Tickers::NO_ITERATOR_CREATED:
|
|
return 0x5F;
|
|
case rocksdb::Tickers::NO_ITERATOR_DELETED:
|
|
return 0x60;
|
|
case rocksdb::Tickers::TICKER_ENUM_MAX:
|
|
return 0x61;
|
|
|
|
default:
|
|
// undefined/default
|
|
return 0x0;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::Tickers enum for the
|
|
// provided Java org.rocksdb.TickerType
|
|
static rocksdb::Tickers toCppTickers(jbyte jticker_type) {
|
|
switch(jticker_type) {
|
|
case 0x0:
|
|
return rocksdb::Tickers::BLOCK_CACHE_MISS;
|
|
case 0x1:
|
|
return rocksdb::Tickers::BLOCK_CACHE_HIT;
|
|
case 0x2:
|
|
return rocksdb::Tickers::BLOCK_CACHE_ADD;
|
|
case 0x3:
|
|
return rocksdb::Tickers::BLOCK_CACHE_ADD_FAILURES;
|
|
case 0x4:
|
|
return rocksdb::Tickers::BLOCK_CACHE_INDEX_MISS;
|
|
case 0x5:
|
|
return rocksdb::Tickers::BLOCK_CACHE_INDEX_HIT;
|
|
case 0x6:
|
|
return rocksdb::Tickers::BLOCK_CACHE_INDEX_ADD;
|
|
case 0x7:
|
|
return rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_INSERT;
|
|
case 0x8:
|
|
return rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_EVICT;
|
|
case 0x9:
|
|
return rocksdb::Tickers::BLOCK_CACHE_FILTER_MISS;
|
|
case 0xA:
|
|
return rocksdb::Tickers::BLOCK_CACHE_FILTER_HIT;
|
|
case 0xB:
|
|
return rocksdb::Tickers::BLOCK_CACHE_FILTER_ADD;
|
|
case 0xC:
|
|
return rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_INSERT;
|
|
case 0xD:
|
|
return rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_EVICT;
|
|
case 0xE:
|
|
return rocksdb::Tickers::BLOCK_CACHE_DATA_MISS;
|
|
case 0xF:
|
|
return rocksdb::Tickers::BLOCK_CACHE_DATA_HIT;
|
|
case 0x10:
|
|
return rocksdb::Tickers::BLOCK_CACHE_DATA_ADD;
|
|
case 0x11:
|
|
return rocksdb::Tickers::BLOCK_CACHE_DATA_BYTES_INSERT;
|
|
case 0x12:
|
|
return rocksdb::Tickers::BLOCK_CACHE_BYTES_READ;
|
|
case 0x13:
|
|
return rocksdb::Tickers::BLOCK_CACHE_BYTES_WRITE;
|
|
case 0x14:
|
|
return rocksdb::Tickers::BLOOM_FILTER_USEFUL;
|
|
case 0x15:
|
|
return rocksdb::Tickers::PERSISTENT_CACHE_HIT;
|
|
case 0x16:
|
|
return rocksdb::Tickers::PERSISTENT_CACHE_MISS;
|
|
case 0x17:
|
|
return rocksdb::Tickers::SIM_BLOCK_CACHE_HIT;
|
|
case 0x18:
|
|
return rocksdb::Tickers::SIM_BLOCK_CACHE_MISS;
|
|
case 0x19:
|
|
return rocksdb::Tickers::MEMTABLE_HIT;
|
|
case 0x1A:
|
|
return rocksdb::Tickers::MEMTABLE_MISS;
|
|
case 0x1B:
|
|
return rocksdb::Tickers::GET_HIT_L0;
|
|
case 0x1C:
|
|
return rocksdb::Tickers::GET_HIT_L1;
|
|
case 0x1D:
|
|
return rocksdb::Tickers::GET_HIT_L2_AND_UP;
|
|
case 0x1E:
|
|
return rocksdb::Tickers::COMPACTION_KEY_DROP_NEWER_ENTRY;
|
|
case 0x1F:
|
|
return rocksdb::Tickers::COMPACTION_KEY_DROP_OBSOLETE;
|
|
case 0x20:
|
|
return rocksdb::Tickers::COMPACTION_KEY_DROP_RANGE_DEL;
|
|
case 0x21:
|
|
return rocksdb::Tickers::COMPACTION_KEY_DROP_USER;
|
|
case 0x22:
|
|
return rocksdb::Tickers::COMPACTION_RANGE_DEL_DROP_OBSOLETE;
|
|
case 0x23:
|
|
return rocksdb::Tickers::NUMBER_KEYS_WRITTEN;
|
|
case 0x24:
|
|
return rocksdb::Tickers::NUMBER_KEYS_READ;
|
|
case 0x25:
|
|
return rocksdb::Tickers::NUMBER_KEYS_UPDATED;
|
|
case 0x26:
|
|
return rocksdb::Tickers::BYTES_WRITTEN;
|
|
case 0x27:
|
|
return rocksdb::Tickers::BYTES_READ;
|
|
case 0x28:
|
|
return rocksdb::Tickers::NUMBER_DB_SEEK;
|
|
case 0x29:
|
|
return rocksdb::Tickers::NUMBER_DB_NEXT;
|
|
case 0x2A:
|
|
return rocksdb::Tickers::NUMBER_DB_PREV;
|
|
case 0x2B:
|
|
return rocksdb::Tickers::NUMBER_DB_SEEK_FOUND;
|
|
case 0x2C:
|
|
return rocksdb::Tickers::NUMBER_DB_NEXT_FOUND;
|
|
case 0x2D:
|
|
return rocksdb::Tickers::NUMBER_DB_PREV_FOUND;
|
|
case 0x2E:
|
|
return rocksdb::Tickers::ITER_BYTES_READ;
|
|
case 0x2F:
|
|
return rocksdb::Tickers::NO_FILE_CLOSES;
|
|
case 0x30:
|
|
return rocksdb::Tickers::NO_FILE_OPENS;
|
|
case 0x31:
|
|
return rocksdb::Tickers::NO_FILE_ERRORS;
|
|
case 0x32:
|
|
return rocksdb::Tickers::STALL_L0_SLOWDOWN_MICROS;
|
|
case 0x33:
|
|
return rocksdb::Tickers::STALL_MEMTABLE_COMPACTION_MICROS;
|
|
case 0x34:
|
|
return rocksdb::Tickers::STALL_L0_NUM_FILES_MICROS;
|
|
case 0x35:
|
|
return rocksdb::Tickers::STALL_MICROS;
|
|
case 0x36:
|
|
return rocksdb::Tickers::DB_MUTEX_WAIT_MICROS;
|
|
case 0x37:
|
|
return rocksdb::Tickers::RATE_LIMIT_DELAY_MILLIS;
|
|
case 0x38:
|
|
return rocksdb::Tickers::NO_ITERATOR_CREATED;
|
|
case 0x39:
|
|
return rocksdb::Tickers::NUMBER_MULTIGET_CALLS;
|
|
case 0x3A:
|
|
return rocksdb::Tickers::NUMBER_MULTIGET_KEYS_READ;
|
|
case 0x3B:
|
|
return rocksdb::Tickers::NUMBER_MULTIGET_BYTES_READ;
|
|
case 0x3C:
|
|
return rocksdb::Tickers::NUMBER_FILTERED_DELETES;
|
|
case 0x3D:
|
|
return rocksdb::Tickers::NUMBER_MERGE_FAILURES;
|
|
case 0x3E:
|
|
return rocksdb::Tickers::BLOOM_FILTER_PREFIX_CHECKED;
|
|
case 0x3F:
|
|
return rocksdb::Tickers::BLOOM_FILTER_PREFIX_USEFUL;
|
|
case 0x40:
|
|
return rocksdb::Tickers::NUMBER_OF_RESEEKS_IN_ITERATION;
|
|
case 0x41:
|
|
return rocksdb::Tickers::GET_UPDATES_SINCE_CALLS;
|
|
case 0x42:
|
|
return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_MISS;
|
|
case 0x43:
|
|
return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_HIT;
|
|
case 0x44:
|
|
return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD;
|
|
case 0x45:
|
|
return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD_FAILURES;
|
|
case 0x46:
|
|
return rocksdb::Tickers::WAL_FILE_SYNCED;
|
|
case 0x47:
|
|
return rocksdb::Tickers::WAL_FILE_BYTES;
|
|
case 0x48:
|
|
return rocksdb::Tickers::WRITE_DONE_BY_SELF;
|
|
case 0x49:
|
|
return rocksdb::Tickers::WRITE_DONE_BY_OTHER;
|
|
case 0x4A:
|
|
return rocksdb::Tickers::WRITE_TIMEDOUT;
|
|
case 0x4B:
|
|
return rocksdb::Tickers::WRITE_WITH_WAL;
|
|
case 0x4C:
|
|
return rocksdb::Tickers::COMPACT_READ_BYTES;
|
|
case 0x4D:
|
|
return rocksdb::Tickers::COMPACT_WRITE_BYTES;
|
|
case 0x4E:
|
|
return rocksdb::Tickers::FLUSH_WRITE_BYTES;
|
|
case 0x4F:
|
|
return rocksdb::Tickers::NUMBER_DIRECT_LOAD_TABLE_PROPERTIES;
|
|
case 0x50:
|
|
return rocksdb::Tickers::NUMBER_SUPERVERSION_ACQUIRES;
|
|
case 0x51:
|
|
return rocksdb::Tickers::NUMBER_SUPERVERSION_RELEASES;
|
|
case 0x52:
|
|
return rocksdb::Tickers::NUMBER_SUPERVERSION_CLEANUPS;
|
|
case 0x53:
|
|
return rocksdb::Tickers::NUMBER_BLOCK_COMPRESSED;
|
|
case 0x54:
|
|
return rocksdb::Tickers::NUMBER_BLOCK_DECOMPRESSED;
|
|
case 0x55:
|
|
return rocksdb::Tickers::NUMBER_BLOCK_NOT_COMPRESSED;
|
|
case 0x56:
|
|
return rocksdb::Tickers::MERGE_OPERATION_TOTAL_TIME;
|
|
case 0x57:
|
|
return rocksdb::Tickers::FILTER_OPERATION_TOTAL_TIME;
|
|
case 0x58:
|
|
return rocksdb::Tickers::ROW_CACHE_HIT;
|
|
case 0x59:
|
|
return rocksdb::Tickers::ROW_CACHE_MISS;
|
|
case 0x5A:
|
|
return rocksdb::Tickers::READ_AMP_ESTIMATE_USEFUL_BYTES;
|
|
case 0x5B:
|
|
return rocksdb::Tickers::READ_AMP_TOTAL_READ_BYTES;
|
|
case 0x5C:
|
|
return rocksdb::Tickers::NUMBER_RATE_LIMITER_DRAINS;
|
|
case 0x5D:
|
|
return rocksdb::Tickers::NUMBER_ITER_SKIP;
|
|
case 0x5E:
|
|
return rocksdb::Tickers::NUMBER_MULTIGET_KEYS_FOUND;
|
|
case 0x5F:
|
|
return rocksdb::Tickers::NO_ITERATOR_DELETED;
|
|
case 0x60:
|
|
return rocksdb::Tickers::TICKER_ENUM_MAX;
|
|
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::Tickers::BLOCK_CACHE_MISS;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.HistogramType
|
|
class HistogramTypeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.HistogramType for the provided
|
|
// C++ rocksdb::Histograms enum
|
|
static jbyte toJavaHistogramsType(
|
|
const rocksdb::Histograms& histograms) {
|
|
switch(histograms) {
|
|
case rocksdb::Histograms::DB_GET:
|
|
return 0x0;
|
|
case rocksdb::Histograms::DB_WRITE:
|
|
return 0x1;
|
|
case rocksdb::Histograms::COMPACTION_TIME:
|
|
return 0x2;
|
|
case rocksdb::Histograms::SUBCOMPACTION_SETUP_TIME:
|
|
return 0x3;
|
|
case rocksdb::Histograms::TABLE_SYNC_MICROS:
|
|
return 0x4;
|
|
case rocksdb::Histograms::COMPACTION_OUTFILE_SYNC_MICROS:
|
|
return 0x5;
|
|
case rocksdb::Histograms::WAL_FILE_SYNC_MICROS:
|
|
return 0x6;
|
|
case rocksdb::Histograms::MANIFEST_FILE_SYNC_MICROS:
|
|
return 0x7;
|
|
case rocksdb::Histograms::TABLE_OPEN_IO_MICROS:
|
|
return 0x8;
|
|
case rocksdb::Histograms::DB_MULTIGET:
|
|
return 0x9;
|
|
case rocksdb::Histograms::READ_BLOCK_COMPACTION_MICROS:
|
|
return 0xA;
|
|
case rocksdb::Histograms::READ_BLOCK_GET_MICROS:
|
|
return 0xB;
|
|
case rocksdb::Histograms::WRITE_RAW_BLOCK_MICROS:
|
|
return 0xC;
|
|
case rocksdb::Histograms::STALL_L0_SLOWDOWN_COUNT:
|
|
return 0xD;
|
|
case rocksdb::Histograms::STALL_MEMTABLE_COMPACTION_COUNT:
|
|
return 0xE;
|
|
case rocksdb::Histograms::STALL_L0_NUM_FILES_COUNT:
|
|
return 0xF;
|
|
case rocksdb::Histograms::HARD_RATE_LIMIT_DELAY_COUNT:
|
|
return 0x10;
|
|
case rocksdb::Histograms::SOFT_RATE_LIMIT_DELAY_COUNT:
|
|
return 0x11;
|
|
case rocksdb::Histograms::NUM_FILES_IN_SINGLE_COMPACTION:
|
|
return 0x12;
|
|
case rocksdb::Histograms::DB_SEEK:
|
|
return 0x13;
|
|
case rocksdb::Histograms::WRITE_STALL:
|
|
return 0x14;
|
|
case rocksdb::Histograms::SST_READ_MICROS:
|
|
return 0x15;
|
|
case rocksdb::Histograms::NUM_SUBCOMPACTIONS_SCHEDULED:
|
|
return 0x16;
|
|
case rocksdb::Histograms::BYTES_PER_READ:
|
|
return 0x17;
|
|
case rocksdb::Histograms::BYTES_PER_WRITE:
|
|
return 0x18;
|
|
case rocksdb::Histograms::BYTES_PER_MULTIGET:
|
|
return 0x19;
|
|
case rocksdb::Histograms::BYTES_COMPRESSED:
|
|
return 0x1A;
|
|
case rocksdb::Histograms::BYTES_DECOMPRESSED:
|
|
return 0x1B;
|
|
case rocksdb::Histograms::COMPRESSION_TIMES_NANOS:
|
|
return 0x1C;
|
|
case rocksdb::Histograms::DECOMPRESSION_TIMES_NANOS:
|
|
return 0x1D;
|
|
case rocksdb::Histograms::READ_NUM_MERGE_OPERANDS:
|
|
return 0x1E;
|
|
case rocksdb::Histograms::FLUSH_TIME:
|
|
return 0x1F;
|
|
case rocksdb::Histograms::HISTOGRAM_ENUM_MAX:
|
|
return 0x20;
|
|
|
|
default:
|
|
// undefined/default
|
|
return 0x0;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::Histograms enum for the
|
|
// provided Java org.rocksdb.HistogramsType
|
|
static rocksdb::Histograms toCppHistograms(jbyte jhistograms_type) {
|
|
switch(jhistograms_type) {
|
|
case 0x0:
|
|
return rocksdb::Histograms::DB_GET;
|
|
case 0x1:
|
|
return rocksdb::Histograms::DB_WRITE;
|
|
case 0x2:
|
|
return rocksdb::Histograms::COMPACTION_TIME;
|
|
case 0x3:
|
|
return rocksdb::Histograms::SUBCOMPACTION_SETUP_TIME;
|
|
case 0x4:
|
|
return rocksdb::Histograms::TABLE_SYNC_MICROS;
|
|
case 0x5:
|
|
return rocksdb::Histograms::COMPACTION_OUTFILE_SYNC_MICROS;
|
|
case 0x6:
|
|
return rocksdb::Histograms::WAL_FILE_SYNC_MICROS;
|
|
case 0x7:
|
|
return rocksdb::Histograms::MANIFEST_FILE_SYNC_MICROS;
|
|
case 0x8:
|
|
return rocksdb::Histograms::TABLE_OPEN_IO_MICROS;
|
|
case 0x9:
|
|
return rocksdb::Histograms::DB_MULTIGET;
|
|
case 0xA:
|
|
return rocksdb::Histograms::READ_BLOCK_COMPACTION_MICROS;
|
|
case 0xB:
|
|
return rocksdb::Histograms::READ_BLOCK_GET_MICROS;
|
|
case 0xC:
|
|
return rocksdb::Histograms::WRITE_RAW_BLOCK_MICROS;
|
|
case 0xD:
|
|
return rocksdb::Histograms::STALL_L0_SLOWDOWN_COUNT;
|
|
case 0xE:
|
|
return rocksdb::Histograms::STALL_MEMTABLE_COMPACTION_COUNT;
|
|
case 0xF:
|
|
return rocksdb::Histograms::STALL_L0_NUM_FILES_COUNT;
|
|
case 0x10:
|
|
return rocksdb::Histograms::HARD_RATE_LIMIT_DELAY_COUNT;
|
|
case 0x11:
|
|
return rocksdb::Histograms::SOFT_RATE_LIMIT_DELAY_COUNT;
|
|
case 0x12:
|
|
return rocksdb::Histograms::NUM_FILES_IN_SINGLE_COMPACTION;
|
|
case 0x13:
|
|
return rocksdb::Histograms::DB_SEEK;
|
|
case 0x14:
|
|
return rocksdb::Histograms::WRITE_STALL;
|
|
case 0x15:
|
|
return rocksdb::Histograms::SST_READ_MICROS;
|
|
case 0x16:
|
|
return rocksdb::Histograms::NUM_SUBCOMPACTIONS_SCHEDULED;
|
|
case 0x17:
|
|
return rocksdb::Histograms::BYTES_PER_READ;
|
|
case 0x18:
|
|
return rocksdb::Histograms::BYTES_PER_WRITE;
|
|
case 0x19:
|
|
return rocksdb::Histograms::BYTES_PER_MULTIGET;
|
|
case 0x1A:
|
|
return rocksdb::Histograms::BYTES_COMPRESSED;
|
|
case 0x1B:
|
|
return rocksdb::Histograms::BYTES_DECOMPRESSED;
|
|
case 0x1C:
|
|
return rocksdb::Histograms::COMPRESSION_TIMES_NANOS;
|
|
case 0x1D:
|
|
return rocksdb::Histograms::DECOMPRESSION_TIMES_NANOS;
|
|
case 0x1E:
|
|
return rocksdb::Histograms::READ_NUM_MERGE_OPERANDS;
|
|
case 0x1F:
|
|
return rocksdb::Histograms::FLUSH_TIME;
|
|
case 0x20:
|
|
return rocksdb::Histograms::HISTOGRAM_ENUM_MAX;
|
|
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::Histograms::DB_GET;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.StatsLevel
|
|
class StatsLevelJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.StatsLevel for the provided
|
|
// C++ rocksdb::StatsLevel enum
|
|
static jbyte toJavaStatsLevel(
|
|
const rocksdb::StatsLevel& stats_level) {
|
|
switch(stats_level) {
|
|
case rocksdb::StatsLevel::kExceptDetailedTimers:
|
|
return 0x0;
|
|
case rocksdb::StatsLevel::kExceptTimeForMutex:
|
|
return 0x1;
|
|
case rocksdb::StatsLevel::kAll:
|
|
return 0x2;
|
|
|
|
default:
|
|
// undefined/default
|
|
return 0x0;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::StatsLevel enum for the
|
|
// provided Java org.rocksdb.StatsLevel
|
|
static rocksdb::StatsLevel toCppStatsLevel(jbyte jstats_level) {
|
|
switch(jstats_level) {
|
|
case 0x0:
|
|
return rocksdb::StatsLevel::kExceptDetailedTimers;
|
|
case 0x1:
|
|
return rocksdb::StatsLevel::kExceptTimeForMutex;
|
|
case 0x2:
|
|
return rocksdb::StatsLevel::kAll;
|
|
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::StatsLevel::kExceptDetailedTimers;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.RateLimiterMode
|
|
class RateLimiterModeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.RateLimiterMode for the provided
|
|
// C++ rocksdb::RateLimiter::Mode enum
|
|
static jbyte toJavaRateLimiterMode(
|
|
const rocksdb::RateLimiter::Mode& rate_limiter_mode) {
|
|
switch(rate_limiter_mode) {
|
|
case rocksdb::RateLimiter::Mode::kReadsOnly:
|
|
return 0x0;
|
|
case rocksdb::RateLimiter::Mode::kWritesOnly:
|
|
return 0x1;
|
|
case rocksdb::RateLimiter::Mode::kAllIo:
|
|
return 0x2;
|
|
|
|
default:
|
|
// undefined/default
|
|
return 0x1;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::RateLimiter::Mode enum for the
|
|
// provided Java org.rocksdb.RateLimiterMode
|
|
static rocksdb::RateLimiter::Mode toCppRateLimiterMode(jbyte jrate_limiter_mode) {
|
|
switch(jrate_limiter_mode) {
|
|
case 0x0:
|
|
return rocksdb::RateLimiter::Mode::kReadsOnly;
|
|
case 0x1:
|
|
return rocksdb::RateLimiter::Mode::kWritesOnly;
|
|
case 0x2:
|
|
return rocksdb::RateLimiter::Mode::kAllIo;
|
|
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::RateLimiter::Mode::kWritesOnly;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.MemoryUsageType
|
|
class MemoryUsageTypeJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.MemoryUsageType for the provided
|
|
// C++ rocksdb::MemoryUtil::UsageType enum
|
|
static jbyte toJavaMemoryUsageType(
|
|
const rocksdb::MemoryUtil::UsageType& usage_type) {
|
|
switch(usage_type) {
|
|
case rocksdb::MemoryUtil::UsageType::kMemTableTotal:
|
|
return 0x0;
|
|
case rocksdb::MemoryUtil::UsageType::kMemTableUnFlushed:
|
|
return 0x1;
|
|
case rocksdb::MemoryUtil::UsageType::kTableReadersTotal:
|
|
return 0x2;
|
|
case rocksdb::MemoryUtil::UsageType::kCacheTotal:
|
|
return 0x3;
|
|
default:
|
|
// undefined: use kNumUsageTypes
|
|
return 0x4;
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::MemoryUtil::UsageType enum for the
|
|
// provided Java org.rocksdb.MemoryUsageType
|
|
static rocksdb::MemoryUtil::UsageType toCppMemoryUsageType(
|
|
jbyte usage_type) {
|
|
switch(usage_type) {
|
|
case 0x0:
|
|
return rocksdb::MemoryUtil::UsageType::kMemTableTotal;
|
|
case 0x1:
|
|
return rocksdb::MemoryUtil::UsageType::kMemTableUnFlushed;
|
|
case 0x2:
|
|
return rocksdb::MemoryUtil::UsageType::kTableReadersTotal;
|
|
case 0x3:
|
|
return rocksdb::MemoryUtil::UsageType::kCacheTotal;
|
|
default:
|
|
// undefined/default: use kNumUsageTypes
|
|
return rocksdb::MemoryUtil::UsageType::kNumUsageTypes;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.Transaction
|
|
class TransactionJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.Transaction
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,
|
|
"org/rocksdb/Transaction");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.Transaction.WaitingTransactions object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param jtransaction A Java org.rocksdb.Transaction object
|
|
* @param column_family_id The id of the column family
|
|
* @param key The key
|
|
* @param transaction_ids The transaction ids
|
|
*
|
|
* @return A reference to a Java
|
|
* org.rocksdb.Transaction.WaitingTransactions object,
|
|
* or nullptr if an an exception occurs
|
|
*/
|
|
static jobject newWaitingTransactions(JNIEnv* env, jobject jtransaction,
|
|
const uint32_t column_family_id, const std::string &key,
|
|
const std::vector<TransactionID> &transaction_ids) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(
|
|
jclazz, "newWaitingTransactions", "(JLjava/lang/String;[J)Lorg/rocksdb/Transaction$WaitingTransactions;");
|
|
if(mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jstring jkey = env->NewStringUTF(key.c_str());
|
|
if(jkey == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
const size_t len = transaction_ids.size();
|
|
jlongArray jtransaction_ids = env->NewLongArray(static_cast<jsize>(len));
|
|
if(jtransaction_ids == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->DeleteLocalRef(jkey);
|
|
return nullptr;
|
|
}
|
|
|
|
jlong *body = env->GetLongArrayElements(jtransaction_ids, nullptr);
|
|
if(body == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->DeleteLocalRef(jkey);
|
|
env->DeleteLocalRef(jtransaction_ids);
|
|
return nullptr;
|
|
}
|
|
for(size_t i = 0; i < len; ++i) {
|
|
body[i] = static_cast<jlong>(transaction_ids[i]);
|
|
}
|
|
env->ReleaseLongArrayElements(jtransaction_ids, body, 0);
|
|
|
|
jobject jwaiting_transactions = env->CallObjectMethod(jtransaction,
|
|
mid, static_cast<jlong>(column_family_id), jkey, jtransaction_ids);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: InstantiationException or OutOfMemoryError
|
|
env->DeleteLocalRef(jkey);
|
|
env->DeleteLocalRef(jtransaction_ids);
|
|
return nullptr;
|
|
}
|
|
|
|
return jwaiting_transactions;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TransactionDB
|
|
class TransactionDBJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.TransactionDB
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,
|
|
"org/rocksdb/TransactionDB");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.TransactionDB.DeadlockInfo object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param jtransaction A Java org.rocksdb.Transaction object
|
|
* @param column_family_id The id of the column family
|
|
* @param key The key
|
|
* @param transaction_ids The transaction ids
|
|
*
|
|
* @return A reference to a Java
|
|
* org.rocksdb.Transaction.WaitingTransactions object,
|
|
* or nullptr if an an exception occurs
|
|
*/
|
|
static jobject newDeadlockInfo(JNIEnv* env, jobject jtransaction_db,
|
|
const rocksdb::TransactionID transaction_id,
|
|
const uint32_t column_family_id, const std::string &waiting_key,
|
|
const bool exclusive) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(
|
|
jclazz, "newDeadlockInfo", "(JJLjava/lang/String;Z)Lorg/rocksdb/TransactionDB$DeadlockInfo;");
|
|
if(mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jstring jwaiting_key = env->NewStringUTF(waiting_key.c_str());
|
|
if(jwaiting_key == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
// resolve the column family id to a ColumnFamilyHandle
|
|
jobject jdeadlock_info = env->CallObjectMethod(jtransaction_db,
|
|
mid, transaction_id, static_cast<jlong>(column_family_id),
|
|
jwaiting_key, exclusive);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: InstantiationException or OutOfMemoryError
|
|
env->DeleteLocalRef(jwaiting_key);
|
|
return nullptr;
|
|
}
|
|
|
|
return jdeadlock_info;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TxnDBWritePolicy
|
|
class TxnDBWritePolicyJni {
|
|
public:
|
|
// Returns the equivalent org.rocksdb.TxnDBWritePolicy for the provided
|
|
// C++ rocksdb::TxnDBWritePolicy enum
|
|
static jbyte toJavaTxnDBWritePolicy(
|
|
const rocksdb::TxnDBWritePolicy& txndb_write_policy) {
|
|
switch(txndb_write_policy) {
|
|
case rocksdb::TxnDBWritePolicy::WRITE_COMMITTED:
|
|
return 0x0;
|
|
case rocksdb::TxnDBWritePolicy::WRITE_PREPARED:
|
|
return 0x1;
|
|
case rocksdb::TxnDBWritePolicy::WRITE_UNPREPARED:
|
|
return 0x2;
|
|
default:
|
|
return 0x7F; // undefined
|
|
}
|
|
}
|
|
|
|
// Returns the equivalent C++ rocksdb::TxnDBWritePolicy enum for the
|
|
// provided Java org.rocksdb.TxnDBWritePolicy
|
|
static rocksdb::TxnDBWritePolicy toCppTxnDBWritePolicy(
|
|
jbyte jtxndb_write_policy) {
|
|
switch(jtxndb_write_policy) {
|
|
case 0x0:
|
|
return rocksdb::TxnDBWritePolicy::WRITE_COMMITTED;
|
|
case 0x1:
|
|
return rocksdb::TxnDBWritePolicy::WRITE_PREPARED;
|
|
case 0x2:
|
|
return rocksdb::TxnDBWritePolicy::WRITE_UNPREPARED;
|
|
default:
|
|
// undefined/default
|
|
return rocksdb::TxnDBWritePolicy::WRITE_COMMITTED;
|
|
}
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TransactionDB.KeyLockInfo
|
|
class KeyLockInfoJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.TransactionDB.KeyLockInfo
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,
|
|
"org/rocksdb/TransactionDB$KeyLockInfo");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.TransactionDB.KeyLockInfo object
|
|
* with the same properties as the provided C++ rocksdb::KeyLockInfo object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param key_lock_info The rocksdb::KeyLockInfo object
|
|
*
|
|
* @return A reference to a Java
|
|
* org.rocksdb.TransactionDB.KeyLockInfo object,
|
|
* or nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env,
|
|
const rocksdb::KeyLockInfo& key_lock_info) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(
|
|
jclazz, "<init>", "(Ljava/lang/String;[JZ)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jstring jkey = env->NewStringUTF(key_lock_info.key.c_str());
|
|
if (jkey == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
const jsize jtransaction_ids_len = static_cast<jsize>(key_lock_info.ids.size());
|
|
jlongArray jtransactions_ids = env->NewLongArray(jtransaction_ids_len);
|
|
if (jtransactions_ids == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->DeleteLocalRef(jkey);
|
|
return nullptr;
|
|
}
|
|
|
|
const jobject jkey_lock_info = env->NewObject(jclazz, mid,
|
|
jkey, jtransactions_ids, key_lock_info.exclusive);
|
|
if(jkey_lock_info == nullptr) {
|
|
// exception thrown: InstantiationException or OutOfMemoryError
|
|
env->DeleteLocalRef(jtransactions_ids);
|
|
env->DeleteLocalRef(jkey);
|
|
return nullptr;
|
|
}
|
|
|
|
return jkey_lock_info;
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TransactionDB.DeadlockInfo
|
|
class DeadlockInfoJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.TransactionDB.DeadlockInfo
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,"org/rocksdb/TransactionDB$DeadlockInfo");
|
|
}
|
|
};
|
|
|
|
// The portal class for org.rocksdb.TransactionDB.DeadlockPath
|
|
class DeadlockPathJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.TransactionDB.DeadlockPath
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env,
|
|
"org/rocksdb/TransactionDB$DeadlockPath");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.TransactionDB.DeadlockPath object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to a Java
|
|
* org.rocksdb.TransactionDB.DeadlockPath object,
|
|
* or nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env,
|
|
const jobjectArray jdeadlock_infos, const bool limit_exceeded) {
|
|
jclass jclazz = getJClass(env);
|
|
if(jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(
|
|
jclazz, "<init>", "([LDeadlockInfo;Z)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
const jobject jdeadlock_path = env->NewObject(jclazz, mid,
|
|
jdeadlock_infos, limit_exceeded);
|
|
if(jdeadlock_path == nullptr) {
|
|
// exception thrown: InstantiationException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
return jdeadlock_path;
|
|
}
|
|
};
|
|
|
|
// various utility functions for working with RocksDB and JNI
|
|
class JniUtil {
|
|
public:
|
|
/**
|
|
* Obtains a reference to the JNIEnv from
|
|
* the JVM
|
|
*
|
|
* If the current thread is not attached to the JavaVM
|
|
* then it will be attached so as to retrieve the JNIEnv
|
|
*
|
|
* If a thread is attached, it must later be manually
|
|
* released by calling JavaVM::DetachCurrentThread.
|
|
* This can be handled by always matching calls to this
|
|
* function with calls to {@link JniUtil::releaseJniEnv(JavaVM*, jboolean)}
|
|
*
|
|
* @param jvm (IN) A pointer to the JavaVM instance
|
|
* @param attached (OUT) A pointer to a boolean which
|
|
* will be set to JNI_TRUE if we had to attach the thread
|
|
*
|
|
* @return A pointer to the JNIEnv or nullptr if a fatal error
|
|
* occurs and the JNIEnv cannot be retrieved
|
|
*/
|
|
static JNIEnv* getJniEnv(JavaVM* jvm, jboolean* attached) {
|
|
assert(jvm != nullptr);
|
|
|
|
JNIEnv *env;
|
|
const jint env_rs = jvm->GetEnv(reinterpret_cast<void**>(&env),
|
|
JNI_VERSION_1_2);
|
|
|
|
if(env_rs == JNI_OK) {
|
|
// current thread is already attached, return the JNIEnv
|
|
*attached = JNI_FALSE;
|
|
return env;
|
|
} else if(env_rs == JNI_EDETACHED) {
|
|
// current thread is not attached, attempt to attach
|
|
const jint rs_attach = jvm->AttachCurrentThread(reinterpret_cast<void**>(&env), NULL);
|
|
if(rs_attach == JNI_OK) {
|
|
*attached = JNI_TRUE;
|
|
return env;
|
|
} else {
|
|
// error, could not attach the thread
|
|
std::cerr << "JniUtil::getJinEnv - Fatal: could not attach current thread to JVM!" << std::endl;
|
|
return nullptr;
|
|
}
|
|
} else if(env_rs == JNI_EVERSION) {
|
|
// error, JDK does not support JNI_VERSION_1_2+
|
|
std::cerr << "JniUtil::getJinEnv - Fatal: JDK does not support JNI_VERSION_1_2" << std::endl;
|
|
return nullptr;
|
|
} else {
|
|
std::cerr << "JniUtil::getJinEnv - Fatal: Unknown error: env_rs=" << env_rs << std::endl;
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Counterpart to {@link JniUtil::getJniEnv(JavaVM*, jboolean*)}
|
|
*
|
|
* Detachess the current thread from the JVM if it was previously
|
|
* attached
|
|
*
|
|
* @param jvm (IN) A pointer to the JavaVM instance
|
|
* @param attached (IN) JNI_TRUE if we previously had to attach the thread
|
|
* to the JavaVM to get the JNIEnv
|
|
*/
|
|
static void releaseJniEnv(JavaVM* jvm, jboolean& attached) {
|
|
assert(jvm != nullptr);
|
|
if(attached == JNI_TRUE) {
|
|
const jint rs_detach = jvm->DetachCurrentThread();
|
|
assert(rs_detach == JNI_OK);
|
|
if(rs_detach != JNI_OK) {
|
|
std::cerr << "JniUtil::getJinEnv - Warn: Unable to detach current thread from JVM!" << std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Copies a Java String[] to a C++ std::vector<std::string>
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param jss (IN) The Java String array to copy
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError or ArrayIndexOutOfBoundsException
|
|
* exception occurs
|
|
*
|
|
* @return A std::vector<std:string> containing copies of the Java strings
|
|
*/
|
|
static std::vector<std::string> copyStrings(JNIEnv* env,
|
|
jobjectArray jss, jboolean* has_exception) {
|
|
return rocksdb::JniUtil::copyStrings(env, jss,
|
|
env->GetArrayLength(jss), has_exception);
|
|
}
|
|
|
|
/**
|
|
* Copies a Java String[] to a C++ std::vector<std::string>
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param jss (IN) The Java String array to copy
|
|
* @param jss_len (IN) The length of the Java String array to copy
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError or ArrayIndexOutOfBoundsException
|
|
* exception occurs
|
|
*
|
|
* @return A std::vector<std:string> containing copies of the Java strings
|
|
*/
|
|
static std::vector<std::string> copyStrings(JNIEnv* env,
|
|
jobjectArray jss, const jsize jss_len, jboolean* has_exception) {
|
|
std::vector<std::string> strs;
|
|
for (jsize i = 0; i < jss_len; i++) {
|
|
jobject js = env->GetObjectArrayElement(jss, i);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
*has_exception = JNI_TRUE;
|
|
return strs;
|
|
}
|
|
|
|
jstring jstr = static_cast<jstring>(js);
|
|
const char* str = env->GetStringUTFChars(jstr, nullptr);
|
|
if(str == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->DeleteLocalRef(js);
|
|
*has_exception = JNI_TRUE;
|
|
return strs;
|
|
}
|
|
|
|
strs.push_back(std::string(str));
|
|
|
|
env->ReleaseStringUTFChars(jstr, str);
|
|
env->DeleteLocalRef(js);
|
|
}
|
|
|
|
*has_exception = JNI_FALSE;
|
|
return strs;
|
|
}
|
|
|
|
/**
|
|
* Copies a jstring to a C-style null-terminated byte string
|
|
* and releases the original jstring
|
|
*
|
|
* The jstring is copied as UTF-8
|
|
*
|
|
* If an exception occurs, then JNIEnv::ExceptionCheck()
|
|
* will have been called
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param js (IN) The java string to copy
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError exception occurs
|
|
*
|
|
* @return A pointer to the copied string, or a
|
|
* nullptr if has_exception == JNI_TRUE
|
|
*/
|
|
static std::unique_ptr<char[]> copyString(JNIEnv* env, jstring js,
|
|
jboolean* has_exception) {
|
|
const char *utf = env->GetStringUTFChars(js, nullptr);
|
|
if(utf == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->ExceptionCheck();
|
|
*has_exception = JNI_TRUE;
|
|
return nullptr;
|
|
} else if(env->ExceptionCheck()) {
|
|
// exception thrown
|
|
env->ReleaseStringUTFChars(js, utf);
|
|
*has_exception = JNI_TRUE;
|
|
return nullptr;
|
|
}
|
|
|
|
const jsize utf_len = env->GetStringUTFLength(js);
|
|
std::unique_ptr<char[]> str(new char[utf_len + 1]); // Note: + 1 is needed for the c_str null terminator
|
|
std::strcpy(str.get(), utf);
|
|
env->ReleaseStringUTFChars(js, utf);
|
|
*has_exception = JNI_FALSE;
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* Copies a jstring to a std::string
|
|
* and releases the original jstring
|
|
*
|
|
* If an exception occurs, then JNIEnv::ExceptionCheck()
|
|
* will have been called
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param js (IN) The java string to copy
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError exception occurs
|
|
*
|
|
* @return A std:string copy of the jstring, or an
|
|
* empty std::string if has_exception == JNI_TRUE
|
|
*/
|
|
static std::string copyStdString(JNIEnv* env, jstring js,
|
|
jboolean* has_exception) {
|
|
const char *utf = env->GetStringUTFChars(js, nullptr);
|
|
if(utf == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->ExceptionCheck();
|
|
*has_exception = JNI_TRUE;
|
|
return std::string();
|
|
} else if(env->ExceptionCheck()) {
|
|
// exception thrown
|
|
env->ReleaseStringUTFChars(js, utf);
|
|
*has_exception = JNI_TRUE;
|
|
return std::string();
|
|
}
|
|
|
|
std::string name(utf);
|
|
env->ReleaseStringUTFChars(js, utf);
|
|
*has_exception = JNI_FALSE;
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Copies bytes from a std::string to a jByteArray
|
|
*
|
|
* @param env A pointer to the java environment
|
|
* @param bytes The bytes to copy
|
|
*
|
|
* @return the Java byte[] or nullptr if an exception occurs
|
|
*
|
|
* @throws RocksDBException thrown
|
|
* if memory size to copy exceeds general java specific array size limitation.
|
|
*/
|
|
static jbyteArray copyBytes(JNIEnv* env, std::string bytes) {
|
|
return createJavaByteArrayWithSizeCheck(env, bytes.c_str(), bytes.size());
|
|
}
|
|
|
|
/**
|
|
* Given a Java byte[][] which is an array of java.lang.Strings
|
|
* where each String is a byte[], the passed function `string_fn`
|
|
* will be called on each String, the result is the collected by
|
|
* calling the passed function `collector_fn`
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param jbyte_strings (IN) A Java array of Strings expressed as bytes
|
|
* @param string_fn (IN) A transform function to call for each String
|
|
* @param collector_fn (IN) A collector which is called for the result
|
|
* of each `string_fn`
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an ArrayIndexOutOfBoundsException or OutOfMemoryError
|
|
* exception occurs
|
|
*/
|
|
template <typename T> static void byteStrings(JNIEnv* env,
|
|
jobjectArray jbyte_strings,
|
|
std::function<T(const char*, const size_t)> string_fn,
|
|
std::function<void(size_t, T)> collector_fn,
|
|
jboolean *has_exception) {
|
|
const jsize jlen = env->GetArrayLength(jbyte_strings);
|
|
|
|
for(jsize i = 0; i < jlen; i++) {
|
|
jobject jbyte_string_obj = env->GetObjectArrayElement(jbyte_strings, i);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
*has_exception = JNI_TRUE; // signal error
|
|
return;
|
|
}
|
|
|
|
jbyteArray jbyte_string_ary =
|
|
reinterpret_cast<jbyteArray>(jbyte_string_obj);
|
|
T result = byteString(env, jbyte_string_ary, string_fn, has_exception);
|
|
|
|
env->DeleteLocalRef(jbyte_string_obj);
|
|
|
|
if(*has_exception == JNI_TRUE) {
|
|
// exception thrown: OutOfMemoryError
|
|
return;
|
|
}
|
|
|
|
collector_fn(i, result);
|
|
}
|
|
|
|
*has_exception = JNI_FALSE;
|
|
}
|
|
|
|
/**
|
|
* Given a Java String which is expressed as a Java Byte Array byte[],
|
|
* the passed function `string_fn` will be called on the String
|
|
* and the result returned
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param jbyte_string_ary (IN) A Java String expressed in bytes
|
|
* @param string_fn (IN) A transform function to call on the String
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError exception occurs
|
|
*/
|
|
template <typename T> static T byteString(JNIEnv* env,
|
|
jbyteArray jbyte_string_ary,
|
|
std::function<T(const char*, const size_t)> string_fn,
|
|
jboolean* has_exception) {
|
|
const jsize jbyte_string_len = env->GetArrayLength(jbyte_string_ary);
|
|
return byteString<T>(env, jbyte_string_ary, jbyte_string_len, string_fn,
|
|
has_exception);
|
|
}
|
|
|
|
/**
|
|
* Given a Java String which is expressed as a Java Byte Array byte[],
|
|
* the passed function `string_fn` will be called on the String
|
|
* and the result returned
|
|
*
|
|
* @param env (IN) A pointer to the java environment
|
|
* @param jbyte_string_ary (IN) A Java String expressed in bytes
|
|
* @param jbyte_string_len (IN) The length of the Java String
|
|
* expressed in bytes
|
|
* @param string_fn (IN) A transform function to call on the String
|
|
* @param has_exception (OUT) will be set to JNI_TRUE
|
|
* if an OutOfMemoryError exception occurs
|
|
*/
|
|
template <typename T> static T byteString(JNIEnv* env,
|
|
jbyteArray jbyte_string_ary, const jsize jbyte_string_len,
|
|
std::function<T(const char*, const size_t)> string_fn,
|
|
jboolean* has_exception) {
|
|
jbyte* jbyte_string =
|
|
env->GetByteArrayElements(jbyte_string_ary, nullptr);
|
|
if(jbyte_string == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
*has_exception = JNI_TRUE;
|
|
return nullptr; // signal error
|
|
}
|
|
|
|
T result =
|
|
string_fn(reinterpret_cast<char *>(jbyte_string), jbyte_string_len);
|
|
|
|
env->ReleaseByteArrayElements(jbyte_string_ary, jbyte_string, JNI_ABORT);
|
|
|
|
*has_exception = JNI_FALSE;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts a std::vector<string> to a Java byte[][] where each Java String
|
|
* is expressed as a Java Byte Array byte[].
|
|
*
|
|
* @param env A pointer to the java environment
|
|
* @param strings A vector of Strings
|
|
*
|
|
* @return A Java array of Strings expressed as bytes
|
|
*/
|
|
static jobjectArray stringsBytes(JNIEnv* env, std::vector<std::string> strings) {
|
|
jclass jcls_ba = ByteJni::getArrayJClass(env);
|
|
if(jcls_ba == nullptr) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
|
|
const jsize len = static_cast<jsize>(strings.size());
|
|
|
|
jobjectArray jbyte_strings = env->NewObjectArray(len, jcls_ba, nullptr);
|
|
if(jbyte_strings == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
for (jsize i = 0; i < len; i++) {
|
|
std::string *str = &strings[i];
|
|
const jsize str_len = static_cast<jsize>(str->size());
|
|
|
|
jbyteArray jbyte_string_ary = env->NewByteArray(str_len);
|
|
if(jbyte_string_ary == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
env->DeleteLocalRef(jbyte_strings);
|
|
return nullptr;
|
|
}
|
|
|
|
env->SetByteArrayRegion(
|
|
jbyte_string_ary, 0, str_len,
|
|
const_cast<jbyte*>(reinterpret_cast<const jbyte*>(str->c_str())));
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
env->DeleteLocalRef(jbyte_string_ary);
|
|
env->DeleteLocalRef(jbyte_strings);
|
|
return nullptr;
|
|
}
|
|
|
|
env->SetObjectArrayElement(jbyte_strings, i, jbyte_string_ary);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
// or ArrayStoreException
|
|
env->DeleteLocalRef(jbyte_string_ary);
|
|
env->DeleteLocalRef(jbyte_strings);
|
|
return nullptr;
|
|
}
|
|
|
|
env->DeleteLocalRef(jbyte_string_ary);
|
|
}
|
|
|
|
return jbyte_strings;
|
|
}
|
|
|
|
/**
|
|
* Copies bytes to a new jByteArray with the check of java array size limitation.
|
|
*
|
|
* @param bytes pointer to memory to copy to a new jByteArray
|
|
* @param size number of bytes to copy
|
|
*
|
|
* @return the Java byte[] or nullptr if an exception occurs
|
|
*
|
|
* @throws RocksDBException thrown
|
|
* if memory size to copy exceeds general java array size limitation to avoid overflow.
|
|
*/
|
|
static jbyteArray createJavaByteArrayWithSizeCheck(JNIEnv* env, const char* bytes, const size_t size) {
|
|
// Limitation for java array size is vm specific
|
|
// In general it cannot exceed Integer.MAX_VALUE (2^31 - 1)
|
|
// Current HotSpot VM limitation for array size is Integer.MAX_VALUE - 5 (2^31 - 1 - 5)
|
|
// It means that the next call to env->NewByteArray can still end with
|
|
// OutOfMemoryError("Requested array size exceeds VM limit") coming from VM
|
|
static const size_t MAX_JARRAY_SIZE = (static_cast<size_t>(1)) << 31;
|
|
if(size > MAX_JARRAY_SIZE) {
|
|
rocksdb::RocksDBExceptionJni::ThrowNew(env, "Requested array size exceeds VM limit");
|
|
return nullptr;
|
|
}
|
|
|
|
const jsize jlen = static_cast<jsize>(size);
|
|
jbyteArray jbytes = env->NewByteArray(jlen);
|
|
if(jbytes == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
env->SetByteArrayRegion(jbytes, 0, jlen,
|
|
const_cast<jbyte*>(reinterpret_cast<const jbyte*>(bytes)));
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
env->DeleteLocalRef(jbytes);
|
|
return nullptr;
|
|
}
|
|
|
|
return jbytes;
|
|
}
|
|
|
|
/**
|
|
* Copies bytes from a rocksdb::Slice to a jByteArray
|
|
*
|
|
* @param env A pointer to the java environment
|
|
* @param bytes The bytes to copy
|
|
*
|
|
* @return the Java byte[] or nullptr if an exception occurs
|
|
*
|
|
* @throws RocksDBException thrown
|
|
* if memory size to copy exceeds general java specific array size limitation.
|
|
*/
|
|
static jbyteArray copyBytes(JNIEnv* env, const Slice& bytes) {
|
|
return createJavaByteArrayWithSizeCheck(env, bytes.data(), bytes.size());
|
|
}
|
|
|
|
/*
|
|
* Helper for operations on a key and value
|
|
* for example WriteBatch->Put
|
|
*
|
|
* TODO(AR) could be used for RocksDB->Put etc.
|
|
*/
|
|
static std::unique_ptr<rocksdb::Status> kv_op(
|
|
std::function<rocksdb::Status(rocksdb::Slice, rocksdb::Slice)> op,
|
|
JNIEnv* env, jobject /*jobj*/,
|
|
jbyteArray jkey, jint jkey_len,
|
|
jbyteArray jvalue, jint jvalue_len) {
|
|
jbyte* key = env->GetByteArrayElements(jkey, nullptr);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jbyte* value = env->GetByteArrayElements(jvalue, nullptr);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: OutOfMemoryError
|
|
if(key != nullptr) {
|
|
env->ReleaseByteArrayElements(jkey, key, JNI_ABORT);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len);
|
|
rocksdb::Slice value_slice(reinterpret_cast<char*>(value),
|
|
jvalue_len);
|
|
|
|
auto status = op(key_slice, value_slice);
|
|
|
|
if(value != nullptr) {
|
|
env->ReleaseByteArrayElements(jvalue, value, JNI_ABORT);
|
|
}
|
|
if(key != nullptr) {
|
|
env->ReleaseByteArrayElements(jkey, key, JNI_ABORT);
|
|
}
|
|
|
|
return std::unique_ptr<rocksdb::Status>(new rocksdb::Status(status));
|
|
}
|
|
|
|
/*
|
|
* Helper for operations on a key
|
|
* for example WriteBatch->Delete
|
|
*
|
|
* TODO(AR) could be used for RocksDB->Delete etc.
|
|
*/
|
|
static std::unique_ptr<rocksdb::Status> k_op(
|
|
std::function<rocksdb::Status(rocksdb::Slice)> op,
|
|
JNIEnv* env, jobject /*jobj*/,
|
|
jbyteArray jkey, jint jkey_len) {
|
|
jbyte* key = env->GetByteArrayElements(jkey, nullptr);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len);
|
|
|
|
auto status = op(key_slice);
|
|
|
|
if(key != nullptr) {
|
|
env->ReleaseByteArrayElements(jkey, key, JNI_ABORT);
|
|
}
|
|
|
|
return std::unique_ptr<rocksdb::Status>(new rocksdb::Status(status));
|
|
}
|
|
|
|
/*
|
|
* Helper for operations on a value
|
|
* for example WriteBatchWithIndex->GetFromBatch
|
|
*/
|
|
static jbyteArray v_op(
|
|
std::function<rocksdb::Status(rocksdb::Slice, std::string*)> op,
|
|
JNIEnv* env, jbyteArray jkey, jint jkey_len) {
|
|
jbyte* key = env->GetByteArrayElements(jkey, nullptr);
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len);
|
|
|
|
std::string value;
|
|
rocksdb::Status s = op(key_slice, &value);
|
|
|
|
if(key != nullptr) {
|
|
env->ReleaseByteArrayElements(jkey, key, JNI_ABORT);
|
|
}
|
|
|
|
if (s.IsNotFound()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (s.ok()) {
|
|
jbyteArray jret_value =
|
|
env->NewByteArray(static_cast<jsize>(value.size()));
|
|
if(jret_value == nullptr) {
|
|
// exception thrown: OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
env->SetByteArrayRegion(jret_value, 0, static_cast<jsize>(value.size()),
|
|
const_cast<jbyte*>(reinterpret_cast<const jbyte*>(value.c_str())));
|
|
if(env->ExceptionCheck()) {
|
|
// exception thrown: ArrayIndexOutOfBoundsException
|
|
if(jret_value != nullptr) {
|
|
env->DeleteLocalRef(jret_value);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
return jret_value;
|
|
}
|
|
|
|
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
|
|
return nullptr;
|
|
}
|
|
};
|
|
|
|
class ColumnFamilyDescriptorJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class org.rocksdb.ColumnFamilyDescriptor
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "org/rocksdb/ColumnFamilyDescriptor");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java org.rocksdb.ColumnFamilyDescriptor object with the same
|
|
* properties as the provided C++ rocksdb::ColumnFamilyDescriptor object
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
* @param cfd A pointer to rocksdb::ColumnFamilyDescriptor object
|
|
*
|
|
* @return A reference to a Java org.rocksdb.ColumnFamilyDescriptor object, or
|
|
* nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env, ColumnFamilyDescriptor* cfd) {
|
|
jbyteArray jcf_name = JniUtil::copyBytes(env, cfd->name);
|
|
jobject cfopts = ColumnFamilyOptionsJni::construct(env, &(cfd->options));
|
|
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(jclazz, "<init>",
|
|
"([BLorg/rocksdb/ColumnFamilyOptions;)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
env->DeleteLocalRef(jcf_name);
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jcfd = env->NewObject(jclazz, mid, jcf_name, cfopts);
|
|
if (env->ExceptionCheck()) {
|
|
env->DeleteLocalRef(jcf_name);
|
|
return nullptr;
|
|
}
|
|
|
|
return jcfd;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: ColumnFamilyDescriptor#columnFamilyName
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getColumnFamilyNameMethod(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(jclazz, "columnFamilyName", "()[B");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: ColumnFamilyDescriptor#columnFamilyOptions
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getColumnFamilyOptionsMethod(JNIEnv* env) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid = env->GetMethodID(
|
|
jclazz, "columnFamilyOptions", "()Lorg/rocksdb/ColumnFamilyOptions;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
class MapJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.util.Map
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/util/Map");
|
|
}
|
|
|
|
/**
|
|
* Get the Java Method: Map#put
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Method ID or nullptr if the class or method id could not
|
|
* be retieved
|
|
*/
|
|
static jmethodID getMapPutMethodId(JNIEnv* env) {
|
|
jclass jlist_clazz = getClass(env);
|
|
if(jlist_clazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
static jmethodID mid =
|
|
env->GetMethodID(jlist_clazz, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
|
|
assert(mid != nullptr);
|
|
return mid;
|
|
}
|
|
};
|
|
|
|
class HashMapJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.util.HashMap
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/util/HashMap");
|
|
}
|
|
|
|
/**
|
|
* Create a new Java java.util.HashMap object.
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return A reference to a Java java.util.HashMap object, or
|
|
* nullptr if an an exception occurs
|
|
*/
|
|
static jobject construct(JNIEnv* env, const uint32_t initial_capacity = 16) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid = env->GetMethodID(jclazz, "<init>", "(I)V");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
jobject jhash_map = env->NewObject(jclazz, mid, static_cast<jint>(initial_capacity));
|
|
if (env->ExceptionCheck()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return jhash_map;
|
|
}
|
|
|
|
/**
|
|
* A function which maps a std::pair<K,V> to a std::pair<jobject, jobject>
|
|
*
|
|
* @return Either a pointer to a std::pair<jobject, jobject>, or nullptr
|
|
* if an error occurs during the mapping
|
|
*/
|
|
template <typename K, typename V>
|
|
using FnMapKV = std::function<std::unique_ptr<std::pair<jobject, jobject>> (const std::pair<K, V>&)>;
|
|
|
|
// template <class I, typename K, typename V, typename K1, typename V1, typename std::enable_if<std::is_same<typename std::iterator_traits<I>::value_type, std::pair<const K,V>>::value, int32_t>::type = 0>
|
|
// static void putAll(JNIEnv* env, const jobject jhash_map, I iterator, const FnMapKV<const K,V,K1,V1> &fn_map_kv) {
|
|
/**
|
|
* Returns true if it succeeds, false if an error occurs
|
|
*/
|
|
template<class iterator_type, typename K, typename V>
|
|
static bool putAll(JNIEnv* env, const jobject jhash_map, iterator_type iterator, iterator_type end, const FnMapKV<K, V> &fn_map_kv) {
|
|
const jmethodID jmid_put = rocksdb::MapJni::getMapPutMethodId(env);
|
|
if (jmid_put == nullptr) {
|
|
return false;
|
|
}
|
|
|
|
for (auto it = iterator; it != end; ++it) {
|
|
const std::unique_ptr<std::pair<jobject, jobject>> result = fn_map_kv(*it);
|
|
if (result == nullptr) {
|
|
// an error occurred during fn_map_kv
|
|
return false;
|
|
}
|
|
env->CallObjectMethod(jhash_map, jmid_put, result->first, result->second);
|
|
if (env->ExceptionCheck()) {
|
|
// exception occurred
|
|
env->DeleteLocalRef(result->second);
|
|
env->DeleteLocalRef(result->first);
|
|
return false;
|
|
}
|
|
|
|
// release local references
|
|
env->DeleteLocalRef(result->second);
|
|
env->DeleteLocalRef(result->first);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class LongJni : public JavaClass {
|
|
public:
|
|
/**
|
|
* Get the Java Class java.lang.Long
|
|
*
|
|
* @param env A pointer to the Java environment
|
|
*
|
|
* @return The Java Class or nullptr if one of the
|
|
* ClassFormatError, ClassCircularityError, NoClassDefFoundError,
|
|
* OutOfMemoryError or ExceptionInInitializerError exceptions is thrown
|
|
*/
|
|
static jclass getJClass(JNIEnv* env) {
|
|
return JavaClass::getJClass(env, "java/lang/Long");
|
|
}
|
|
|
|
static jobject valueOf(JNIEnv* env, jlong jprimitive_long) {
|
|
jclass jclazz = getJClass(env);
|
|
if (jclazz == nullptr) {
|
|
// exception occurred accessing class
|
|
return nullptr;
|
|
}
|
|
|
|
jmethodID mid =
|
|
env->GetStaticMethodID(jclazz, "valueOf", "(J)Ljava/lang/Long;");
|
|
if (mid == nullptr) {
|
|
// exception thrown: NoSuchMethodException or OutOfMemoryError
|
|
return nullptr;
|
|
}
|
|
|
|
const jobject jlong_obj =
|
|
env->CallStaticObjectMethod(jclazz, mid, jprimitive_long);
|
|
if (env->ExceptionCheck()) {
|
|
// exception occurred
|
|
return nullptr;
|
|
}
|
|
|
|
return jlong_obj;
|
|
}
|
|
};
|
|
} // namespace rocksdb
|
|
#endif // JAVA_ROCKSJNI_PORTAL_H_
|