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c442f6809f
Summary: The Customizable class is an extension of the Configurable class and allows instances to be created by a name/ID. Classes that extend customizable can define their Type (e.g. "TableFactory", "Cache") and a method to instantiate them (TableFactory::CreateFromString). Customizable objects can be registered with the ObjectRegistry and created dynamically. Future PRs will make more types of objects extend Customizable. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6590 Reviewed By: cheng-chang Differential Revision: D24841553 Pulled By: zhichao-cao fbshipit-source-id: d0c2132bd932e971cbfe2c908ca2e5db30c5e155
39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "options/customizable_helper.h"
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#include "rocksdb/convenience.h"
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#include "rocksdb/table.h"
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#include "table/block_based/block_based_table_factory.h"
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#include "table/cuckoo/cuckoo_table_factory.h"
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#include "table/plain/plain_table_factory.h"
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namespace ROCKSDB_NAMESPACE {
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static bool LoadFactory(const std::string& name,
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std::shared_ptr<TableFactory>* factory) {
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bool success = true;
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if (name == TableFactory::kBlockBasedTableName()) {
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factory->reset(new BlockBasedTableFactory());
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#ifndef ROCKSDB_LITE
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} else if (name == TableFactory::kPlainTableName()) {
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factory->reset(new PlainTableFactory());
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} else if (name == TableFactory::kCuckooTableName()) {
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factory->reset(new CuckooTableFactory());
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#endif // ROCKSDB_LITE
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} else {
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success = false;
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}
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return success;
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}
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Status TableFactory::CreateFromString(const ConfigOptions& config_options,
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const std::string& value,
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std::shared_ptr<TableFactory>* factory) {
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return LoadSharedObject<TableFactory>(config_options, value, LoadFactory,
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factory);
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}
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} // namespace ROCKSDB_NAMESPACE
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