/**
* 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.coord;
import java.util.Date;
import java.util.List;
import org.apache.oozie.CoordinatorActionBean;
import org.apache.oozie.CoordinatorJobBean;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.XException;
import org.apache.oozie.client.CoordinatorJob;
import org.apache.oozie.client.Job;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.PreconditionException;
import org.apache.oozie.command.ResumeTransitionXCommand;
import org.apache.oozie.command.bundle.BundleStatusUpdateXCommand;
import org.apache.oozie.command.wf.ResumeXCommand;
import org.apache.oozie.executor.jpa.CoordActionUpdateJPAExecutor;
import org.apache.oozie.executor.jpa.CoordJobGetActionsJPAExecutor;
import org.apache.oozie.executor.jpa.CoordJobGetJPAExecutor;
import org.apache.oozie.executor.jpa.CoordJobUpdateJPAExecutor;
import org.apache.oozie.executor.jpa.JPAExecutorException;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
import org.apache.oozie.util.InstrumentUtils;
import org.apache.oozie.util.LogUtils;
import org.apache.oozie.util.ParamChecker;
/**
* Resume coordinator job and actions.
*
*/
public class CoordResumeXCommand extends ResumeTransitionXCommand {
private final String jobId;
private CoordinatorJobBean coordJob = null;
private JPAService jpaService = null;
private boolean exceptionOccured = false;
CoordinatorJob.Status prevStatus;
public CoordResumeXCommand(String id) {
super("coord_resume", "coord_resume", 1);
this.jobId = ParamChecker.notEmpty(id, "id");
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#getEntityKey()
*/
@Override
protected String getEntityKey() {
return jobId;
}
/* (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
protected void loadState() throws CommandException {
jpaService = Services.get().get(JPAService.class);
if (jpaService == null) {
throw new CommandException(ErrorCode.E0610);
}
try {
coordJob = jpaService.execute(new CoordJobGetJPAExecutor(jobId));
}
catch (JPAExecutorException e) {
throw new CommandException(e);
}
setJob(coordJob);
prevStatus = coordJob.getStatus();
LogUtils.setLogInfo(coordJob, logInfo);
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#verifyPrecondition()
*/
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
if (coordJob.getStatus() != CoordinatorJob.Status.SUSPENDED && coordJob.getStatus() != Job.Status.PREPSUSPENDED) {
throw new PreconditionException(ErrorCode.E1100, "CoordResumeXCommand not Resumed - "
+ "job not in SUSPENDED/PREPSUSPENDED state, job = " + jobId);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.TransitionXCommand#updateJob()
*/
@Override
public void updateJob() throws CommandException {
InstrumentUtils.incrJobCounter(getName(), 1, getInstrumentation());
coordJob.setSuspendedTime(null);
coordJob.setLastModifiedTime(new Date());
LOG.debug("Resume coordinator job id = " + jobId + ", status = " + coordJob.getStatus() + ", pending = " + coordJob.isPending());
try {
jpaService.execute(new CoordJobUpdateJPAExecutor(coordJob));
}
catch (JPAExecutorException e) {
throw new CommandException(e);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.ResumeTransitionXCommand#resumeChildren()
*/
@Override
public void resumeChildren() throws CommandException {
try {
List<CoordinatorActionBean> actionList = jpaService.execute(new CoordJobGetActionsJPAExecutor(jobId));
for (CoordinatorActionBean action : actionList) {
if(action.getStatus() == CoordinatorActionBean.Status.SUSPENDED){
// queue a ResumeXCommand
if (action.getExternalId() != null) {
queue(new ResumeXCommand(action.getExternalId()));
updateCoordAction(action);
LOG.debug("Resume coord action = [{0}], new status = [{1}], pending = [{2}] and queue ResumeXCommand for [{3}]",
action.getId(), action.getStatus(), action.getPending(), action.getExternalId());
}else {
updateCoordAction(action);
LOG.debug("Resume coord action = [{0}], new status = [{1}], pending = [{2}] and external id is null",
action.getId(), action.getStatus(), action.getPending());
}
}
}
}
catch (XException ex) {
exceptionOccured = true;
throw new CommandException(ex);
}
finally {
if (exceptionOccured) {
coordJob.setStatus(CoordinatorJob.Status.FAILED);
coordJob.resetPending();
LOG.warn("Resume children failed so fail coordinator, coordinator job id = " + jobId
+ ", status = " + coordJob.getStatus());
try {
jpaService.execute(new CoordJobUpdateJPAExecutor(coordJob));
}
catch (JPAExecutorException je) {
LOG.error("Failed to update coordinator job : " + jobId, je);
}
}
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.TransitionXCommand#notifyParent()
*/
@Override
public void notifyParent() throws CommandException {
// update bundle action
if (this.coordJob.getBundleId() != null) {
BundleStatusUpdateXCommand bundleStatusUpdate = new BundleStatusUpdateXCommand(coordJob, prevStatus);
bundleStatusUpdate.call();
}
}
private void updateCoordAction(CoordinatorActionBean action) throws CommandException {
action.setStatus(CoordinatorActionBean.Status.RUNNING);
action.incrementAndGetPending();
action.setLastModifiedTime(new Date());
try {
jpaService.execute(new CoordActionUpdateJPAExecutor(action));
}
catch (JPAExecutorException e) {
throw new CommandException(e);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.TransitionXCommand#getJob()
*/
@Override
public Job getJob() {
return coordJob;
}
}