mirror of https://gitee.com/bigwinds/arangodb
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 ArangoDB GmbH, Cologne, Germany
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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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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Andrey Abramov
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/// @author Vasiliy Nabatchikov
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////////////////////////////////////////////////////////////////////////////////
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#include "SystemDatabaseFeature.h"
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#include "Logger/LogMacros.h"
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#include "RestServer/DatabaseFeature.h"
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#include "VocBase/vocbase.h"
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namespace {
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static std::string const FEATURE_NAME("SystemDatabase");
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}
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namespace arangodb {
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void SystemDatabaseFeature::VocbaseReleaser::operator()(TRI_vocbase_t* ptr) {
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if (ptr) {
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ptr->release();
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}
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}
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SystemDatabaseFeature::SystemDatabaseFeature(application_features::ApplicationServer& server,
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TRI_vocbase_t* vocbase /*= nullptr*/
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)
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: ApplicationFeature(server, SystemDatabaseFeature::name()), _vocbase(vocbase) {
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startsAfter("Database");
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}
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/*static*/ std::string const& SystemDatabaseFeature::name() noexcept {
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return FEATURE_NAME;
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}
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void SystemDatabaseFeature::start() {
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auto* feature =
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application_features::ApplicationServer::lookupFeature<arangodb::DatabaseFeature>(
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"Database");
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if (feature) {
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_vocbase.store(feature->lookupDatabase(TRI_VOC_SYSTEM_DATABASE));
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return;
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}
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LOG_TOPIC("59d62", WARN, arangodb::Logger::FIXME)
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<< "failure to find feature 'Database' while starting feature '"
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<< FEATURE_NAME << "'";
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FATAL_ERROR_EXIT();
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}
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void SystemDatabaseFeature::unprepare() { _vocbase.store(nullptr); }
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SystemDatabaseFeature::ptr SystemDatabaseFeature::use() const {
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auto* vocbase = _vocbase.load();
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return ptr(vocbase && vocbase->use() ? vocbase : nullptr);
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}
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} // namespace arangodb
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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