/**
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * 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. See accompanying LICENSE file.
 */
package org.apache.oozie.command.bundle;

import org.apache.oozie.BundleJobBean;
import org.apache.oozie.client.Job;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.PauseTransitionXCommand;
import org.apache.oozie.command.PreconditionException;
import org.apache.oozie.executor.jpa.BundleJobUpdateJPAExecutor;
import org.apache.oozie.executor.jpa.JPAExecutorException;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
import org.apache.oozie.util.LogUtils;

public class BundlePauseXCommand extends PauseTransitionXCommand {
    private BundleJobBean bundleJob;
    private JPAService jpaService = Services.get().get(JPAService.class);

    public BundlePauseXCommand(BundleJobBean bundleJob) {
        super("bundle_pause", "bundle_pause", 1);
        this.bundleJob = bundleJob;
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.XCommand#getEntityKey()
     */
    @Override
    protected String getEntityKey() {
        return bundleJob.getId();
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.XCommand#isLockRequired()
     */
    @Override
    protected boolean isLockRequired() {
        return true;
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.XCommand#loadState()
     */
    @Override
    public void loadState() throws CommandException {
        LogUtils.setLogInfo(bundleJob, logInfo);
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.XCommand#verifyPrecondition()
     */
    @Override
    protected void verifyPrecondition() throws CommandException, PreconditionException {
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.TransitionXCommand#notifyParent()
     */
    @Override
    public void notifyParent() {
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.TransitionXCommand#getJob()
     */
    @Override
    public Job getJob() {
        return bundleJob;
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.command.TransitionXCommand#updateJob()
     */
    @Override
    public void updateJob() throws CommandException {
        try {
            jpaService.execute(new BundleJobUpdateJPAExecutor(bundleJob));
        }
        catch (JPAExecutorException e) {
            throw new CommandException(e);
        }
    }

    @Override
    public void pauseChildren() throws CommandException {
        // TODO - need revisit when revisiting coord job status redesign;

    }

}