1973fcba11
Summary: In order to support old-style regex function registration, restored the original "Register<T>(string, Factory)" method using regular expressions. The PatternEntry methods were left in place but renamed to AddFactory. The goal is to allow for the deprecation of the original regex Registry method in an upcoming release. Added modes to the PatternEntry kMatchZeroOrMore and kMatchAtLeastOne to match * or +, respectively (kMatchAtLeastOne was the original behavior). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9362 Reviewed By: pdillinger Differential Revision: D33432562 Pulled By: mrambacher fbshipit-source-id: ed88ab3f9a2ad0d525c7bd1692873f9bb3209d02
57 lines
2.3 KiB
C++
57 lines
2.3 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 <memory>
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#include "rocksdb/compaction_filter.h"
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#include "rocksdb/options.h"
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#include "rocksdb/utilities/customizable_util.h"
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#include "rocksdb/utilities/options_type.h"
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#include "utilities/compaction_filters/layered_compaction_filter_base.h"
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#include "utilities/compaction_filters/remove_emptyvalue_compactionfilter.h"
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namespace ROCKSDB_NAMESPACE {
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#ifndef ROCKSDB_LITE
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static int RegisterBuiltinCompactionFilters(ObjectLibrary& library,
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const std::string& /*arg*/) {
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library.AddFactory<CompactionFilter>(
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RemoveEmptyValueCompactionFilter::kClassName(),
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[](const std::string& /*uri*/,
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std::unique_ptr<CompactionFilter>* /*guard*/,
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std::string* /*errmsg*/) {
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return new RemoveEmptyValueCompactionFilter();
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});
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return 1;
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}
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#endif // ROCKSDB_LITE
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Status CompactionFilter::CreateFromString(const ConfigOptions& config_options,
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const std::string& value,
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const CompactionFilter** result) {
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#ifndef ROCKSDB_LITE
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static std::once_flag once;
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std::call_once(once, [&]() {
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RegisterBuiltinCompactionFilters(*(ObjectLibrary::Default().get()), "");
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});
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#endif // ROCKSDB_LITE
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CompactionFilter* filter = const_cast<CompactionFilter*>(*result);
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Status status = LoadStaticObject<CompactionFilter>(config_options, value,
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nullptr, &filter);
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if (status.ok()) {
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*result = const_cast<CompactionFilter*>(filter);
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}
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return status;
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}
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Status CompactionFilterFactory::CreateFromString(
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const ConfigOptions& config_options, const std::string& value,
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std::shared_ptr<CompactionFilterFactory>* result) {
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// Currently there are no builtin CompactionFilterFactories.
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// If any are introduced, they need to be registered here.
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Status status = LoadSharedObject<CompactionFilterFactory>(
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config_options, value, nullptr, result);
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return status;
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}
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} // namespace ROCKSDB_NAMESPACE
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