rocksdb/utilities/leveldb_options/leveldb_options.cc
Bryan Rosario 9e285d4238 Added CompatibleOptions for compatibility with LevelDB Options
Summary: Created a CompatibleOptions object that can be used as a LevelDB Options object and then converted to a RocksDB Options object using the ConvertOptions() method.

Test Plan: Unit test included in diff.

Reviewers: ljin

Reviewed By: ljin

Subscribers: sdong, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D28893
2014-11-20 19:24:39 -08:00

57 lines
2.1 KiB
C++

// 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.
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "rocksdb/utilities/leveldb_options.h"
#include "rocksdb/cache.h"
#include "rocksdb/comparator.h"
#include "rocksdb/env.h"
#include "rocksdb/filter_policy.h"
#include "rocksdb/options.h"
#include "rocksdb/table.h"
namespace rocksdb {
LevelDBOptions::LevelDBOptions()
: comparator(BytewiseComparator()),
create_if_missing(false),
error_if_exists(false),
paranoid_checks(false),
env(Env::Default()),
info_log(nullptr),
write_buffer_size(4 << 20),
max_open_files(1000),
block_cache(nullptr),
block_size(4096),
block_restart_interval(16),
compression(kSnappyCompression),
filter_policy(nullptr) {}
Options ConvertOptions(const LevelDBOptions& leveldb_options) {
Options options = Options();
options.create_if_missing = leveldb_options.create_if_missing;
options.error_if_exists = leveldb_options.error_if_exists;
options.paranoid_checks = leveldb_options.paranoid_checks;
options.env = leveldb_options.env;
options.info_log.reset(leveldb_options.info_log);
options.write_buffer_size = leveldb_options.write_buffer_size;
options.max_open_files = leveldb_options.max_open_files;
options.compression = leveldb_options.compression;
BlockBasedTableOptions table_options;
table_options.block_cache.reset(leveldb_options.block_cache);
table_options.block_size = leveldb_options.block_size;
table_options.block_restart_interval = leveldb_options.block_restart_interval;
table_options.filter_policy.reset(leveldb_options.filter_policy);
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
return options;
}
} // namespace rocksdb