mirror of https://gitee.com/bigwinds/arangodb
102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2017-2017 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// 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.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Michael Hackstein
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGOD_GRAPH_CLUSTER_TRAVERSER_CACHE_H
|
|
#define ARANGOD_GRAPH_CLUSTER_TRAVERSER_CACHE_H 1
|
|
|
|
#include "Cluster/ClusterInfo.h"
|
|
#include "Cluster/TraverserEngineRegistry.h"
|
|
#include "Graph/TraverserCache.h"
|
|
|
|
namespace arangodb {
|
|
|
|
class StringRef;
|
|
|
|
namespace aql {
|
|
struct AqlValue;
|
|
}
|
|
|
|
namespace transaction {
|
|
class Methods;
|
|
}
|
|
|
|
namespace velocypack {
|
|
class Builder;
|
|
class Slice;
|
|
}
|
|
|
|
namespace graph {
|
|
|
|
class ClusterTraverserCache : public TraverserCache {
|
|
public:
|
|
ClusterTraverserCache(
|
|
transaction::Methods* trx,
|
|
std::unordered_map<ServerID, traverser::TraverserEngineID> const*
|
|
engines);
|
|
|
|
~ClusterTraverserCache();
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Inserts the real document stored within the token
|
|
/// into the given builder.
|
|
/// The document will be looked up in the Datalake
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void insertIntoResult(StringRef idString,
|
|
arangodb::velocypack::Builder& builder) override;
|
|
|
|
void insertIntoResult(graph::EdgeDocumentToken const* idToken,
|
|
arangodb::velocypack::Builder& builder) override;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Return AQL value containing the result
|
|
/// The document will be looked up in the Datalake
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
aql::AqlValue fetchAqlResult(StringRef idString) override;
|
|
|
|
aql::AqlValue fetchAqlResult(graph::EdgeDocumentToken const* idToken) override;
|
|
|
|
std::unordered_map<ServerID, traverser::TraverserEngineID> const* engines();
|
|
|
|
std::unordered_map<StringRef, arangodb::velocypack::Slice>& edges();
|
|
|
|
std::vector<std::shared_ptr<arangodb::velocypack::Builder>>& datalake();
|
|
|
|
size_t& insertedDocuments();
|
|
|
|
size_t& filteredDocuments();
|
|
|
|
arangodb::velocypack::Slice lookupToken(EdgeDocumentToken const* token) override;
|
|
|
|
private:
|
|
std::unordered_map<StringRef, arangodb::velocypack::Slice> _edges;
|
|
|
|
std::vector<std::shared_ptr<arangodb::velocypack::Builder>> _datalake;
|
|
|
|
std::unordered_map<ServerID, traverser::TraverserEngineID> const* _engines;
|
|
};
|
|
|
|
} // namespace graph
|
|
} // namespace arangodb
|
|
#endif
|