88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
|
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
|
||
|
|
// This source code is licensed under both the GPLv2 (found in the
|
||
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
||
|
|
// (found in the LICENSE.Apache file in the root directory).
|
||
|
|
|
||
|
|
#include "rocksdb/utilities/object_registry.h"
|
||
|
|
|
||
|
|
#include "logging/logging.h"
|
||
|
|
#include "rocksdb/env.h"
|
||
|
|
|
||
|
|
namespace rocksdb {
|
||
|
|
#ifndef ROCKSDB_LITE
|
||
|
|
// Looks through the "type" factories for one that matches "name".
|
||
|
|
// If found, returns the pointer to the Entry matching this name.
|
||
|
|
// Otherwise, nullptr is returned
|
||
|
|
const ObjectLibrary::Entry *ObjectLibrary::FindEntry(
|
||
|
|
const std::string &type, const std::string &name) const {
|
||
|
|
auto entries = entries_.find(type);
|
||
|
|
if (entries != entries_.end()) {
|
||
|
|
for (const auto &entry : entries->second) {
|
||
|
|
if (entry->matches(name)) {
|
||
|
|
return entry.get();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectLibrary::AddEntry(const std::string &type,
|
||
|
|
std::unique_ptr<Entry> &entry) {
|
||
|
|
auto &entries = entries_[type];
|
||
|
|
entries.emplace_back(std::move(entry));
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectLibrary::Dump(Logger *logger) const {
|
||
|
|
for (const auto &iter : entries_) {
|
||
|
|
ROCKS_LOG_HEADER(logger, " Registered factories for type[%s] ",
|
||
|
|
iter.first.c_str());
|
||
|
|
bool printed_one = false;
|
||
|
|
for (const auto &e : iter.second) {
|
||
|
|
ROCKS_LOG_HEADER(logger, "%c %s", (printed_one) ? ',' : ':',
|
||
|
|
e->Name().c_str());
|
||
|
|
printed_one = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ROCKS_LOG_HEADER(logger, "\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
// Returns the Default singleton instance of the ObjectLibrary
|
||
|
|
// This instance will contain most of the "standard" registered objects
|
||
|
|
std::shared_ptr<ObjectLibrary> &ObjectLibrary::Default() {
|
||
|
|
static std::shared_ptr<ObjectLibrary> instance =
|
||
|
|
std::make_shared<ObjectLibrary>();
|
||
|
|
return instance;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::shared_ptr<ObjectRegistry> ObjectRegistry::NewInstance() {
|
||
|
|
std::shared_ptr<ObjectRegistry> instance = std::make_shared<ObjectRegistry>();
|
||
|
|
return instance;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectRegistry::ObjectRegistry() {
|
||
|
|
libraries_.push_back(ObjectLibrary::Default());
|
||
|
|
}
|
||
|
|
|
||
|
|
// Searches (from back to front) the libraries looking for the
|
||
|
|
// an entry that matches this pattern.
|
||
|
|
// Returns the entry if it is found, and nullptr otherwise
|
||
|
|
const ObjectLibrary::Entry *ObjectRegistry::FindEntry(
|
||
|
|
const std::string &type, const std::string &name) const {
|
||
|
|
for (auto iter = libraries_.crbegin(); iter != libraries_.crend(); ++iter) {
|
||
|
|
const auto *entry = iter->get()->FindEntry(type, name);
|
||
|
|
if (entry != nullptr) {
|
||
|
|
return entry;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectRegistry::Dump(Logger *logger) const {
|
||
|
|
for (auto iter = libraries_.crbegin(); iter != libraries_.crend(); ++iter) {
|
||
|
|
iter->get()->Dump(logger);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // ROCKSDB_LITE
|
||
|
|
} // namespace rocksdb
|