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// Copyright (C) 2011 The Libphonenumber Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Author: Fredrik Roubert
#include "phonenumbers/regexp_cache.h"
#include <cstddef>
#include <string>
#include <utility>
#include "phonenumbers/base/synchronization/lock.h"
#include "phonenumbers/regexp_adapter.h"
using std::string;
namespace i18n {
namespace phonenumbers {
RegExpCache::RegExpCache(const AbstractRegExpFactory& regexp_factory,
size_t min_items)
: regexp_factory_(regexp_factory),
#ifdef I18N_PHONENUMBERS_USE_TR1_UNORDERED_MAP
cache_impl_(new CacheImpl(min_items))
#else
cache_impl_(new CacheImpl())
#endif
{}
RegExpCache::~RegExpCache() {
AutoLock l(lock_);
for (CacheImpl::const_iterator
it = cache_impl_->begin(); it != cache_impl_->end(); ++it) {
delete it->second;
}
}
const RegExp& RegExpCache::GetRegExp(const string& pattern) {
AutoLock l(lock_);
CacheImpl::const_iterator it = cache_impl_->find(pattern);
if (it != cache_impl_->end()) return *it->second;
const RegExp* regexp = regexp_factory_.CreateRegExp(pattern);
cache_impl_->insert(make_pair(pattern, regexp));
return *regexp;
}
} // namespace phonenumbers
} // namespace i18n
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