rocksdb/java/rocksjni/backupablejni.cc

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// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// This file implements the "bridge" between Java and C++ and enables
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// calling c++ rocksdb::BackupableDB and rocksdb::BackupableDBOptions methods
// from Java side.
#include <stdio.h>
#include <stdlib.h>
#include <jni.h>
#include <string>
#include <vector>
#include "include/org_rocksdb_BackupableDB.h"
#include "include/org_rocksdb_BackupableDBOptions.h"
#include "rocksjni/portal.h"
#include "rocksdb/utilities/backupable_db.h"
/*
* Class: org_rocksdb_BackupableDB
* Method: open
* Signature: (JJ)V
*/
void Java_org_rocksdb_BackupableDB_open(
JNIEnv* env, jobject jbdb, jlong jdb_handle, jlong jopt_handle) {
auto db = reinterpret_cast<rocksdb::DB*>(jdb_handle);
auto opt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jopt_handle);
auto bdb = new rocksdb::BackupableDB(db, *opt);
// as BackupableDB extends RocksDB on the java side, we can reuse
// the RocksDB portal here.
rocksdb::RocksDBJni::setHandle(env, jbdb, bdb);
}
/*
* Class: org_rocksdb_BackupableDB
* Method: createNewBackup
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDB_createNewBackup(
JNIEnv* env, jobject jbdb, jlong jhandle, jboolean jflag) {
rocksdb::Status s =
reinterpret_cast<rocksdb::BackupableDB*>(jhandle)->CreateNewBackup(jflag);
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_BackupableDB
* Method: purgeOldBackups
* Signature: (JI)V
*/
void Java_org_rocksdb_BackupableDB_purgeOldBackups(
JNIEnv* env, jobject jbdb, jlong jhandle, jint jnumBackupsToKeep) {
rocksdb::Status s =
reinterpret_cast<rocksdb::BackupableDB*>(jhandle)->
PurgeOldBackups(jnumBackupsToKeep);
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_BackupableDB
* Method: deleteBackup0
* Signature: (JI)V
*/
void Java_org_rocksdb_BackupableDB_deleteBackup0(JNIEnv* env,
jobject jobj, jlong jhandle, jint jbackup_id) {
auto rdb = reinterpret_cast<rocksdb::BackupableDB*>(jhandle);
rocksdb::Status s = rdb->DeleteBackup(jbackup_id);
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_BackupableDB
* Method: getBackupInfo
* Signature: (J)Ljava/util/List;
*/
jobject Java_org_rocksdb_BackupableDB_getBackupInfo(
JNIEnv* env, jobject jbdb, jlong jhandle) {
std::vector<rocksdb::BackupInfo> backup_infos;
reinterpret_cast<rocksdb::BackupableDB*>(jhandle)->
GetBackupInfo(&backup_infos);
return rocksdb::BackupInfoListJni::getBackupInfo(env,
backup_infos);
}
/*
* Class: org_rocksdb_BackupableDB
* Method: getCorruptedBackups
* Signature: (J)[I;
*/
jintArray Java_org_rocksdb_BackupableDB_getCorruptedBackups(
JNIEnv* env, jobject jbdb, jlong jhandle) {
std::vector<rocksdb::BackupID> backup_ids;
reinterpret_cast<rocksdb::BackupableDB*>(jhandle)->
GetCorruptedBackups(&backup_ids);
// store backupids in int array
const std::vector<rocksdb::BackupID>::size_type
kIdSize = backup_ids.size();
int int_backup_ids[kIdSize];
for (std::vector<rocksdb::BackupID>::size_type i = 0;
i != kIdSize; i++) {
int_backup_ids[i] = backup_ids[i];
}
// Store ints in java array
jintArray ret_backup_ids;
// Its ok to loose precision here (64->32)
jsize ret_backup_ids_size = static_cast<jsize>(kIdSize);
ret_backup_ids = env->NewIntArray(ret_backup_ids_size);
env->SetIntArrayRegion(ret_backup_ids, 0, ret_backup_ids_size,
int_backup_ids);
return ret_backup_ids;
}
/*
* Class: org_rocksdb_BackupableDB
* Method: garbageCollect
* Signature: (J)V
*/
void Java_org_rocksdb_BackupableDB_garbageCollect(JNIEnv* env,
jobject jobj, jlong jhandle) {
auto db = reinterpret_cast<rocksdb::BackupableDB*>(jhandle);
rocksdb::Status s = db->GarbageCollect();
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
///////////////////////////////////////////////////////////////////////////
// BackupDBOptions
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: newBackupableDBOptions
* Signature: (Ljava/lang/String;)V
*/
void Java_org_rocksdb_BackupableDBOptions_newBackupableDBOptions(
JNIEnv* env, jobject jobj, jstring jpath) {
const char* cpath = env->GetStringUTFChars(jpath, 0);
auto bopt = new rocksdb::BackupableDBOptions(cpath);
env->ReleaseStringUTFChars(jpath, cpath);
rocksdb::BackupableDBOptionsJni::setHandle(env, jobj, bopt);
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: backupDir
* Signature: (J)Ljava/lang/String;
*/
jstring Java_org_rocksdb_BackupableDBOptions_backupDir(
JNIEnv* env, jobject jopt, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return env->NewStringUTF(bopt->backup_dir.c_str());
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setShareTableFiles
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setShareTableFiles(
JNIEnv* env, jobject jobj, jlong jhandle, jboolean flag) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->share_table_files = flag;
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: shareTableFiles
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_BackupableDBOptions_shareTableFiles(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->share_table_files;
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setSync
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setSync(
JNIEnv* env, jobject jobj, jlong jhandle, jboolean flag) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->sync = flag;
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: sync
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_BackupableDBOptions_sync(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->sync;
}
/*
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* Class: org_rocksdb_BackupableDBOptions
* Method: setDestroyOldData
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setDestroyOldData(
JNIEnv* env, jobject jobj, jlong jhandle, jboolean flag) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->destroy_old_data = flag;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: destroyOldData
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_BackupableDBOptions_destroyOldData(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->destroy_old_data;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setBackupLogFiles
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setBackupLogFiles(
JNIEnv* env, jobject jobj, jlong jhandle, jboolean flag) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->backup_log_files = flag;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: backupLogFiles
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_BackupableDBOptions_backupLogFiles(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->backup_log_files;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setBackupRateLimit
* Signature: (JJ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setBackupRateLimit(
JNIEnv* env, jobject jobj, jlong jhandle, jlong jbackup_rate_limit) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->backup_rate_limit = jbackup_rate_limit;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: backupRateLimit
* Signature: (J)J
*/
jlong Java_org_rocksdb_BackupableDBOptions_backupRateLimit(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->backup_rate_limit;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setRestoreRateLimit
* Signature: (JJ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setRestoreRateLimit(
JNIEnv* env, jobject jobj, jlong jhandle, jlong jrestore_rate_limit) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->restore_rate_limit = jrestore_rate_limit;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: restoreRateLimit
* Signature: (J)J
*/
jlong Java_org_rocksdb_BackupableDBOptions_restoreRateLimit(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->restore_rate_limit;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: setShareFilesWithChecksum
* Signature: (JZ)V
*/
void Java_org_rocksdb_BackupableDBOptions_setShareFilesWithChecksum(
JNIEnv* env, jobject jobj, jlong jhandle, jboolean flag) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
bopt->share_files_with_checksum = flag;
}
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/*
* Class: org_rocksdb_BackupableDBOptions
* Method: shareFilesWithChecksum
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_BackupableDBOptions_shareFilesWithChecksum(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
return bopt->share_files_with_checksum;
}
/*
* Class: org_rocksdb_BackupableDBOptions
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_BackupableDBOptions_disposeInternal(
JNIEnv* env, jobject jopt, jlong jhandle) {
auto bopt = reinterpret_cast<rocksdb::BackupableDBOptions*>(jhandle);
assert(bopt);
delete bopt;
rocksdb::BackupableDBOptionsJni::setHandle(env, jopt, nullptr);
}