mirror of https://gitee.com/bigwinds/arangodb
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS 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 Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_REPLICATION_DATABASE_TAILING_SYNCER_H
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#define ARANGOD_REPLICATION_DATABASE_TAILING_SYNCER_H 1
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#include "TailingSyncer.h"
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#include "Replication/ReplicationApplierConfiguration.h"
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#include "Replication/DatabaseReplicationApplier.h"
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namespace arangodb {
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class DatabaseReplicationApplier;
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class DatabaseTailingSyncer : public TailingSyncer {
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public:
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DatabaseTailingSyncer(TRI_vocbase_t*,
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ReplicationApplierConfiguration const&,
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TRI_voc_tick_t initialTick, bool useTick,
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TRI_voc_tick_t barrierId);
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public:
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TRI_vocbase_t* resolveVocbase(velocypack::Slice const&) override { return _vocbase; }
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/// @brief return the syncer's replication applier
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DatabaseReplicationApplier* applier() const {
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return static_cast<DatabaseReplicationApplier*>(_applier);
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}
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/// @brief finalize the synchronization of a collection by tailing the WAL
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/// and filtering on the collection name until no more data is available
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Result syncCollectionFinalize(std::string const& collectionName);
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protected:
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/// @brief save the current applier state
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Result saveApplierState() override;
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TRI_vocbase_t* vocbase() const {
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TRI_ASSERT(vocbases().size() == 1);
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return vocbases().begin()->second.database();
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}
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/// @brief whether or not we should skip a specific marker
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bool skipMarker(arangodb::velocypack::Slice const& slice) override;
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private:
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/// @brief vocbase to use for this run
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TRI_vocbase_t* _vocbase;
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/// @brief translation between globallyUniqueId and collection name
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std::unordered_map<std::string, std::string> _translations;
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bool _queriedTranslations;
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};
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}
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#endif
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