001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 * 
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 * 
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.oozie.command.coord;
019
020import org.apache.oozie.CoordinatorJobBean;
021import org.apache.oozie.client.CoordinatorJob;
022import org.apache.oozie.client.Job;
023import org.apache.oozie.command.CommandException;
024import org.apache.oozie.command.PreconditionException;
025import org.apache.oozie.command.UnpauseTransitionXCommand;
026import org.apache.oozie.command.bundle.BundleStatusUpdateXCommand;
027
028import org.apache.oozie.executor.jpa.CoordJobUpdateJPAExecutor;
029import org.apache.oozie.executor.jpa.JPAExecutorException;
030import org.apache.oozie.service.JPAService;
031import org.apache.oozie.service.Services;
032import org.apache.oozie.util.LogUtils;
033
034public class CoordUnpauseXCommand extends UnpauseTransitionXCommand {
035    private final JPAService jpaService = Services.get().get(JPAService.class);
036    private final CoordinatorJobBean coordJob;
037    private CoordinatorJob.Status prevStatus = null;
038
039    public CoordUnpauseXCommand(CoordinatorJobBean coordJob) {
040        super("coord_unpause", "coord_unpause", 1);
041        this.coordJob = coordJob;
042    }
043
044    /*
045     * (non-Javadoc)
046     *
047     * @see org.apache.oozie.command.XCommand#getEntityKey()
048     */
049    @Override
050    public String getEntityKey() {
051        return coordJob.getId();
052    }
053
054    /*
055     * (non-Javadoc)
056     *
057     * @see org.apache.oozie.command.XCommand#isLockRequired()
058     */
059    @Override
060    protected boolean isLockRequired() {
061        return true;
062    }
063
064    /*
065     * (non-Javadoc)
066     *
067     * @see org.apache.oozie.command.XCommand#loadState()
068     */
069    @Override
070    public void loadState() throws CommandException {
071        prevStatus = coordJob.getStatus();
072        LogUtils.setLogInfo(coordJob, logInfo);
073    }
074
075    /*
076     * (non-Javadoc)
077     *
078     * @see org.apache.oozie.command.XCommand#verifyPrecondition()
079     */
080    @Override
081    protected void verifyPrecondition() throws CommandException, PreconditionException {
082    }
083
084    /*
085     * (non-Javadoc)
086     *
087     * @see org.apache.oozie.command.TransitionXCommand#notifyParent()
088     */
089    @Override
090    public void notifyParent() throws CommandException {
091        // update bundle action
092        if (coordJob.getBundleId() != null) {
093            BundleStatusUpdateXCommand bundleStatusUpdate = new BundleStatusUpdateXCommand(coordJob, prevStatus);
094            bundleStatusUpdate.call();
095        }
096    }
097
098    /*
099     * (non-Javadoc)
100     *
101     * @see org.apache.oozie.command.TransitionXCommand#getJob()
102     */
103    @Override
104    public Job getJob() {
105        return coordJob;
106    }
107
108    /*
109     * (non-Javadoc)
110     *
111     * @see org.apache.oozie.command.TransitionXCommand#updateJob()
112     */
113    @Override
114    public void updateJob() throws CommandException {
115        try {
116            jpaService.execute(new CoordJobUpdateJPAExecutor(coordJob));
117        }
118        catch (JPAExecutorException e) {
119            throw new CommandException(e);
120        }
121    }
122
123    @Override
124    public void unpauseChildren() throws CommandException {
125        // TODO - need revisit when revisiting coord job status redesign;
126
127    }
128
129    @Override
130    public void performWrites() throws CommandException {
131    }
132
133}