mirror of https://gitee.com/bigwinds/arangodb
104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 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 Simon Grätzer
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////////////////////////////////////////////////////////////////////////////////
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#include "RestPregelHandler.h"
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#include "ApplicationFeatures/ApplicationServer.h"
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#include "Rest/HttpRequest.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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#include "Pregel/PregelFeature.h"
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#include "Pregel/Utils.h"
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using namespace arangodb;
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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using namespace arangodb::pregel;
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RestPregelHandler::RestPregelHandler(GeneralRequest* request, GeneralResponse* response)
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: RestVocbaseBaseHandler(request, response) {}
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RestStatus RestPregelHandler::execute() {
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try {
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bool parseSuccess = true;
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std::shared_ptr<VPackBuilder> parsedBody = parseVelocyPackBody(parseSuccess);
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VPackSlice body(parsedBody->start()); // never nullptr
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if (!parseSuccess || !body.isObject()) {
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LOG_TOPIC("cec03", ERR, Logger::PREGEL) << "Bad request body\n";
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// error message generated in parseVelocyPackBody
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return RestStatus::DONE;
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}
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if (_request->requestType() != rest::RequestType::POST) {
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generateError(rest::ResponseCode::METHOD_NOT_ALLOWED, TRI_ERROR_NOT_IMPLEMENTED,
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"illegal method for /_api/pregel");
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return RestStatus::DONE;
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}
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VPackBuilder response;
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std::vector<std::string> const& suffix = _request->suffixes();
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if (suffix.size() != 2) {
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generateError(rest::ResponseCode::BAD, TRI_ERROR_NOT_IMPLEMENTED,
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"you are missing a prefix");
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} else if (suffix[0] == Utils::conductorPrefix) {
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PregelFeature::handleConductorRequest(suffix[1], body, response);
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generateResult(rest::ResponseCode::OK, response.slice());
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/*
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if (buffer.empty()) {
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resetResponse(rest::ResponseCode::OK);
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} else {
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generateResult(rest::ResponseCode::OK, std::move(buffer));
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}
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*/
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} else if (suffix[0] == Utils::workerPrefix) {
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PregelFeature::handleWorkerRequest(_vocbase, suffix[1], body, response);
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generateResult(rest::ResponseCode::OK, response.slice());
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/* if (buffer.empty()) {
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resetResponse(rest::ResponseCode::OK);
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} else {
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generateResult(rest::ResponseCode::OK, std::move(buffer));
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}
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*/
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} else {
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generateError(rest::ResponseCode::BAD, TRI_ERROR_NOT_IMPLEMENTED,
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"the prefix is incorrect");
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}
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} catch (basics::Exception const& ex) {
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LOG_TOPIC("d1b56", ERR, arangodb::Logger::PREGEL)
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<< "Exception in pregel REST handler: " << ex.what();
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generateError(GeneralResponse::responseCode(ex.code()), ex.code(), ex.what());
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} catch (std::exception const& ex) {
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LOG_TOPIC("2f547", ERR, arangodb::Logger::PREGEL)
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<< "Exception in pregel REST handler: " << ex.what();
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generateError(rest::ResponseCode::SERVER_ERROR, TRI_ERROR_INTERNAL, ex.what());
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} catch (...) {
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LOG_TOPIC("e2ef6", ERR, Logger::PREGEL) << "Exception in pregel REST handler";
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generateError(rest::ResponseCode::BAD, TRI_ERROR_INTERNAL,
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"error in pregel handler");
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}
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return RestStatus::DONE;
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}
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