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 */
018
019package org.apache.oozie.command.coord;
020
021import org.apache.oozie.CoordinatorJobBean;
022import org.apache.oozie.client.CoordinatorJob;
023import org.apache.oozie.client.Job;
024import org.apache.oozie.command.CommandException;
025import org.apache.oozie.command.PreconditionException;
026import org.apache.oozie.command.UnpauseTransitionXCommand;
027import org.apache.oozie.command.bundle.BundleStatusUpdateXCommand;
028
029import org.apache.oozie.executor.jpa.CoordJobQueryExecutor;
030import org.apache.oozie.executor.jpa.CoordJobQueryExecutor.CoordJobQuery;
031import org.apache.oozie.executor.jpa.JPAExecutorException;
032import org.apache.oozie.service.JPAService;
033import org.apache.oozie.service.Services;
034import org.apache.oozie.util.LogUtils;
035
036public class CoordUnpauseXCommand extends UnpauseTransitionXCommand {
037    private final JPAService jpaService = Services.get().get(JPAService.class);
038    private final CoordinatorJobBean coordJob;
039    private CoordinatorJob.Status prevStatus = null;
040
041    public CoordUnpauseXCommand(CoordinatorJobBean coordJob) {
042        super("coord_unpause", "coord_unpause", 1);
043        this.coordJob = coordJob;
044    }
045
046    /*
047     * (non-Javadoc)
048     *
049     * @see org.apache.oozie.command.XCommand#getEntityKey()
050     */
051    @Override
052    public String getEntityKey() {
053        return coordJob.getId();
054    }
055
056    /*
057     * (non-Javadoc)
058     *
059     * @see org.apache.oozie.command.XCommand#isLockRequired()
060     */
061    @Override
062    protected boolean isLockRequired() {
063        return true;
064    }
065
066    /*
067     * (non-Javadoc)
068     *
069     * @see org.apache.oozie.command.XCommand#loadState()
070     */
071    @Override
072    public void loadState() throws CommandException {
073        prevStatus = coordJob.getStatus();
074        LogUtils.setLogInfo(coordJob);
075    }
076
077    /*
078     * (non-Javadoc)
079     *
080     * @see org.apache.oozie.command.XCommand#verifyPrecondition()
081     */
082    @Override
083    protected void verifyPrecondition() throws CommandException, PreconditionException {
084    }
085
086    /*
087     * (non-Javadoc)
088     *
089     * @see org.apache.oozie.command.TransitionXCommand#notifyParent()
090     */
091    @Override
092    public void notifyParent() throws CommandException {
093        // update bundle action
094        if (coordJob.getBundleId() != null) {
095            BundleStatusUpdateXCommand bundleStatusUpdate = new BundleStatusUpdateXCommand(coordJob, prevStatus);
096            bundleStatusUpdate.call();
097        }
098    }
099
100    /*
101     * (non-Javadoc)
102     *
103     * @see org.apache.oozie.command.TransitionXCommand#getJob()
104     */
105    @Override
106    public Job getJob() {
107        return coordJob;
108    }
109
110    /*
111     * (non-Javadoc)
112     *
113     * @see org.apache.oozie.command.TransitionXCommand#updateJob()
114     */
115    @Override
116    public void updateJob() throws CommandException {
117        try {
118            CoordJobQueryExecutor.getInstance().executeUpdate(CoordJobQuery.UPDATE_COORD_JOB_STATUS, coordJob);
119        }
120        catch (JPAExecutorException e) {
121            throw new CommandException(e);
122        }
123    }
124
125    @Override
126    public void unpauseChildren() throws CommandException {
127        // TODO - need revisit when revisiting coord job status redesign;
128
129    }
130
131    @Override
132    public void performWrites() throws CommandException {
133    }
134
135}