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arangodb/arangod/Agency/State.cpp

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS 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 Kaveh Vahedipour
////////////////////////////////////////////////////////////////////////////////
#include "State.h"
using namespace arangodb::consensus;
State::State() {}
State::~State() {}
void State::write (store_t const&) {
std::string body;
arangodb::velocypack::Options opts;
std::unique_ptr<std::map<std::string, std::string>> headerFields =
std::make_unique<std::map<std::string, std::string> >();
std::vector<ClusterCommResult> results(_agent->config().end_points.size());
std::stringstream path;
path << DATABASE_PATH << store_t.toString();
ClusterCommResult result = arangodb::ClusterComm::instance()->asyncRequest("1", 1,
_agent->config().end_points[i], rest::HttpRequest::HTTP_REQUEST_GET,
path.str(), std::make_shared<std::string>(body), headerFields, nullptr,
1.0, true);
if (res.status == CL_COMM_SENT) { // Request successfully sent
res = arangodb::ClusterComm::instance()->wait("1", 1, results[i].operationID, "1");
std::shared_ptr< arangodb::velocypack::Builder > body = res.result->getBodyVelocyPack();
if (body->isEmpty()) {
continue;
} else {
if (!body->slice().hasKey("vote")) { // Answer has no vote. What happened?
_votes[i] = false;
continue;
} else {
_votes[i] = (body->slice().get("vote").isEqualString("TRUE")); // Record vote
}
}
}
};
store_t State::get (std::string const&) const {
std::string body;
arangodb::velocypack::Options opts;
std::unique_ptr<std::map<std::string, std::string>> headerFields =
std::make_unique<std::map<std::string, std::string> >();
std::vector<ClusterCommResult> results(_agent->config().end_points.size());
std::stringstream path;
path << DATABASE_PATH << store_t.toString();
ClusterCommResult result = arangodb::ClusterComm::instance()->asyncRequest("1", 1,
_agent->config().end_points[i], rest::HttpRequest::HTTP_REQUEST_GET,
path.str(), std::make_shared<std::string>(body), headerFields, nullptr,
1.0, true);
if (res.status == CL_COMM_SENT) { // Request successfully sent
res = arangodb::ClusterComm::instance()->wait("1", 1, results[i].operationID, "1");
std::shared_ptr< arangodb::velocypack::Builder > body = res.result->getBodyVelocyPack();
if (body->isEmpty()) {
continue;
} else {
if (!body->slice().hasKey("vote")) { // Answer has no vote. What happened?
_votes[i] = false;
continue;
} else {
_votes[i] = (body->slice().get("vote").isEqualString("TRUE")); // Record vote
}
}
}
};