/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* 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.
*/
package cascading.flow.local.planner;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import cascading.flow.local.LocalFlowProcess;
import cascading.flow.local.LocalFlowStep;
import cascading.flow.planner.FlowStepJob;
import cascading.management.state.ClientState;
import cascading.stats.FlowNodeStats;
import cascading.stats.FlowStepStats;
import cascading.stats.local.LocalStepStats;
/**
*
*/
public class LocalFlowStepJob extends FlowStepJob<Properties>
{
private final LocalStepRunner stackRunner;
private Future<Throwable> future;
public LocalFlowStepJob( ClientState clientState, LocalFlowProcess flowProcess, LocalFlowStep flowStep )
{
super( clientState, flowStep, 200, 1000 );
flowProcess.setStepStats( (LocalStepStats) this.flowStepStats );
this.stackRunner = new LocalStepRunner( flowProcess, flowStep );
}
@Override
public Properties getConfig()
{
return flowStep.getConfig();
}
@Override
protected FlowStepStats createStepStats( ClientState clientState )
{
return new LocalStepStats( flowStep, clientState );
}
@Override
protected boolean isRemoteExecution()
{
return false;
}
@Override
protected String internalJobId()
{
return "flow";
}
@Override
protected void internalNonBlockingStart() throws IOException
{
ExecutorService executors = Executors.newFixedThreadPool( 1 );
future = executors.submit( stackRunner );
executors.shutdown();
}
@Override
protected void markNodeRunningStatus( FlowNodeStats flowNodeStats )
{
}
@Override
protected boolean internalIsStartedRunning()
{
return future != null;
}
@Override
protected boolean internalNonBlockingIsComplete() throws IOException
{
return stackRunner.isComplete();
}
@Override
protected Throwable getThrowable()
{
return stackRunner.getThrowable();
}
@Override
protected boolean internalNonBlockingIsSuccessful() throws IOException
{
return stackRunner.isSuccessful();
}
@Override
protected void internalBlockOnStop() throws IOException
{
}
@Override
protected void dumpDebugInfo()
{
}
}