mirror of https://gitee.com/bigwinds/arangodb
94 lines
3.5 KiB
C++
94 lines
3.5 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 Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#include "V8TimerTask.h"
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#include "Dispatcher/Dispatcher.h"
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#include "Dispatcher/DispatcherFeature.h"
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#include "Scheduler/Scheduler.h"
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#include "Scheduler/SchedulerFeature.h"
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#include "V8/v8-conv.h"
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#include "V8Server/V8Job.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::rest;
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V8TimerTask::V8TimerTask(std::string const& id, std::string const& name,
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TRI_vocbase_t* vocbase, double offset,
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std::string const& command,
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std::shared_ptr<VPackBuilder> parameters,
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bool allowUseDatabase)
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: Task(id, name),
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TimerTask(id, (offset <= 0.0 ? 0.00001 : offset)), // offset must be (at
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// least slightly)
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// greater than zero,
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// otherwise
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// the timertask will not execute the task at all
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_vocbaseGuard(vocbase),
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_command(command),
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_parameters(parameters),
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_created(TRI_microtime()),
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_allowUseDatabase(allowUseDatabase) {
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get a task specific description in JSON format
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////////////////////////////////////////////////////////////////////////////////
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void V8TimerTask::getDescription(VPackBuilder& builder) const {
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TimerTask::getDescription(builder);
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builder.add("created", VPackValue(_created));
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builder.add("command", VPackValue(_command));
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builder.add("database", VPackValue(_vocbaseGuard.vocbase()->name()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief handles the timer event
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////////////////////////////////////////////////////////////////////////////////
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bool V8TimerTask::handleTimeout() {
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TRI_ASSERT(DispatcherFeature::DISPATCHER != nullptr);
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std::unique_ptr<Job> job(
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new V8Job(_vocbaseGuard.vocbase(), "(function (params) { " + _command + " } )(params);",
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_parameters, _allowUseDatabase, nullptr));
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if (DispatcherFeature::DISPATCHER == nullptr) {
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LOG(WARN) << "could not add task " << _command << " to non-existing queue";
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return false;
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}
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int res = DispatcherFeature::DISPATCHER->addJob(job, false);
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if (res != TRI_ERROR_NO_ERROR && res != TRI_ERROR_SHUTTING_DOWN) {
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LOG(WARN) << "could not add task " << _command << " to queue";
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}
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// note: this will destroy the task (i.e. ourselves!!)
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SchedulerFeature::SCHEDULER->destroyTask(this);
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return true;
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}
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