mirror of https://gitee.com/bigwinds/arangodb
97 lines
3.7 KiB
C++
97 lines
3.7 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 Michael Hackstein
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_REST_HANDLER_REST_EDGES_HANDLER_H
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#define ARANGOD_REST_HANDLER_REST_EDGES_HANDLER_H 1
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#include "Basics/Common.h"
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#include "RestHandler/RestVocbaseBaseHandler.h"
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#include <velocypack/Builder.h>
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namespace arangodb {
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class LocalDocumentId;
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namespace transaction {
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class Methods;
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}
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namespace aql {
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struct AstNode;
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struct Variable;
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} // namespace aql
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class RestEdgesHandler : public RestVocbaseBaseHandler {
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public:
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explicit RestEdgesHandler(GeneralRequest*, GeneralResponse*);
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public:
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RestStatus execute() override final;
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char const* name() const override final { return "RestEdgesHandler"; }
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RequestLane lane() const override final { return RequestLane::CLIENT_SLOW; }
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protected:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief reads all edges in given direction for given vertex
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//////////////////////////////////////////////////////////////////////////////
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bool readEdges();
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//////////////////////////////////////////////////////////////////////////////
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/// @brief reads all edges in given direction for a list of vertices
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//////////////////////////////////////////////////////////////////////////////
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bool readEdgesForMultipleVertices();
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//////////////////////////////////////////////////////////////////////////////
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/// @brief find the index and read it completely with the given callback
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//////////////////////////////////////////////////////////////////////////////
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void readCursor(aql::AstNode* condition, aql::Variable const* var,
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std::string const& collectionName, transaction::Methods& trx,
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std::function<void(LocalDocumentId const&)> const& cb);
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//////////////////////////////////////////////////////////////////////////////
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/// @brief get all edges for a given vertex. Independent from the request
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//////////////////////////////////////////////////////////////////////////////
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bool getEdgesForVertex(std::string const& id, TRI_voc_cid_t cid,
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std::string const& collectionName,
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TRI_edge_direction_e direction, transaction::Methods& trx,
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std::function<void(LocalDocumentId const&)> const& cb);
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//////////////////////////////////////////////////////////////////////////////
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/// @brief Parse the direction parameter
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//////////////////////////////////////////////////////////////////////////////
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bool parseDirection(TRI_edge_direction_e& direction);
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//////////////////////////////////////////////////////////////////////////////
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/// @brief Validate that the collection exists and is an edge collection
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//////////////////////////////////////////////////////////////////////////////
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bool validateCollection(std::string const& name);
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};
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} // namespace arangodb
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#endif
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