    001/*
    002 * Copyright (c) 2007-2016 Concurrent, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.flow.local.planner;
    022
    023import java.io.IOException;
    024import java.util.Properties;
    025import java.util.concurrent.ExecutorService;
    026import java.util.concurrent.Executors;
    027import java.util.concurrent.Future;
    028
    029import cascading.flow.local.LocalFlowProcess;
    030import cascading.flow.local.LocalFlowStep;
    031import cascading.flow.planner.FlowStepJob;
    032import cascading.management.state.ClientState;
    033import cascading.stats.FlowNodeStats;
    034import cascading.stats.FlowStepStats;
    035import cascading.stats.local.LocalStepStats;
    036
    037/**
    038 *
    039 */
    040public class LocalFlowStepJob extends FlowStepJob<Properties>
    041  {
    042  private final LocalStepRunner stackRunner;
    043  private Future<Throwable> future;
    044
    045  public LocalFlowStepJob( ClientState clientState, LocalFlowProcess flowProcess, LocalFlowStep flowStep )
    046    {
    047    super( clientState, flowStep.getConfig(), flowStep, 200, 1000, 1000 * 60 );
    048    flowProcess.setStepStats( (LocalStepStats) this.flowStepStats );
    049    this.stackRunner = new LocalStepRunner( flowProcess, flowStep );
    050    }
    051
    052  @Override
    053  protected FlowStepStats createStepStats( ClientState clientState )
    054    {
    055    return new LocalStepStats( flowStep, clientState );
    056    }
    057
    058  @Override
    059  protected boolean isRemoteExecution()
    060    {
    061    return false;
    062    }
    063
    064  @Override
    065  protected String internalJobId()
    066    {
    067    return "flow";
    068    }
    069
    070  @Override
    071  protected void internalNonBlockingStart() throws IOException
    072    {
    073    ExecutorService executors = Executors.newFixedThreadPool( 1 );
    074
    075    future = executors.submit( stackRunner );
    076
    077    executors.shutdown();
    078    }
    079
    080  @Override
    081  protected void updateNodeStatus( FlowNodeStats flowNodeStats )
    082    {
    083    }
    084
    085  @Override
    086  protected boolean internalIsStartedRunning()
    087    {
    088    return future != null;
    089    }
    090
    091  @Override
    092  protected boolean internalNonBlockingIsComplete() throws IOException
    093    {
    094    return stackRunner.isComplete();
    095    }
    096
    097  @Override
    098  protected Throwable getThrowable()
    099    {
    100    return stackRunner.getThrowable();
    101    }
    102
    103  @Override
    104  protected boolean internalNonBlockingIsSuccessful() throws IOException
    105    {
    106    return stackRunner.isSuccessful();
    107    }
    108
    109  @Override
    110  protected void internalBlockOnStop() throws IOException
    111    {
    112    }
    113
    114  @Override
    115  protected void dumpDebugInfo()
    116    {
    117    }
    118  }