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63 lines
1.7 KiB
63 lines
1.7 KiB
// Copyright (C) 2011 The Libphonenumber Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Author: Fredrik Roubert
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#include "phonenumbers/regexp_cache.h"
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#include <cstddef>
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#include <string>
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#include <utility>
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#include "base/logging.h"
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#include "base/synchronization/lock.h"
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#include "phonenumbers/regexp_adapter.h"
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using std::string;
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namespace i18n {
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namespace phonenumbers {
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using base::AutoLock;
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RegExpCache::RegExpCache(const AbstractRegExpFactory& regexp_factory,
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size_t min_items)
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: regexp_factory_(regexp_factory),
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#ifdef USE_TR1_UNORDERED_MAP
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cache_impl_(new CacheImpl(min_items))
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#else
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cache_impl_(new CacheImpl())
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#endif
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{}
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RegExpCache::~RegExpCache() {
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AutoLock l(lock_);
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for (CacheImpl::const_iterator
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it = cache_impl_->begin(); it != cache_impl_->end(); ++it) {
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delete it->second;
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}
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}
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const RegExp& RegExpCache::GetRegExp(const string& pattern) {
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AutoLock l(lock_);
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CacheImpl::const_iterator it = cache_impl_->find(pattern);
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if (it != cache_impl_->end()) return *it->second;
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const RegExp* regexp = regexp_factory_.CreateRegExp(pattern);
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cache_impl_->insert(make_pair(pattern, regexp));
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return *regexp;
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}
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} // namespace phonenumbers
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} // namespace i18n
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