/**
* 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 org.apache.oozie.client.CoordinatorJob;
import org.apache.oozie.client.Job;
import org.apache.oozie.CoordinatorActionBean;
import org.apache.oozie.CoordinatorJobBean;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.XException;
import org.apache.oozie.command.bundle.BundleStatusUpdateXCommand;
import org.apache.oozie.command.wf.KillXCommand;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.KillTransitionXCommand;
import org.apache.oozie.command.PreconditionException;
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.LogUtils;
import org.apache.oozie.util.ParamChecker;
import org.apache.oozie.util.StatusUtils;
import java.util.Date;
import java.util.List;
public class CoordKillXCommand extends KillTransitionXCommand {
private final String jobId;
private CoordinatorJobBean coordJob;
private List<CoordinatorActionBean> actionList;
private JPAService jpaService = null;
private CoordinatorJob.Status prevStatus = null;
public CoordKillXCommand(String id) {
super("coord_kill", "coord_kill", 2);
this.jobId = ParamChecker.notEmpty(id, "id");
}
@Override
protected boolean isLockRequired() {
return true;
}
@Override
protected String getEntityKey() {
return this.jobId;
}
@Override
protected void loadState() throws CommandException {
try {
jpaService = Services.get().get(JPAService.class);
if (jpaService != null) {
this.coordJob = jpaService.execute(new CoordJobGetJPAExecutor(jobId));
this.actionList = jpaService.execute(new CoordJobGetActionsJPAExecutor(jobId));
prevStatus = coordJob.getStatus();
LogUtils.setLogInfo(coordJob, logInfo);
}
else {
throw new CommandException(ErrorCode.E0610);
}
}
catch (XException ex) {
throw new CommandException(ex);
}
}
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
// if namespace 0.1 is used and backward support is true, SUCCEEDED coord job can be killed
if (StatusUtils.isV1CoordjobKillable(coordJob)) {
return;
}
if (coordJob.getStatus() == CoordinatorJob.Status.SUCCEEDED
|| coordJob.getStatus() == CoordinatorJob.Status.FAILED
|| coordJob.getStatus() == CoordinatorJob.Status.DONEWITHERROR) {
LOG.info("CoordKillXCommand not killed - job either finished SUCCEEDED, FAILED or DONEWITHERROR, job id = "
+ jobId + ", status = " + coordJob.getStatus());
throw new PreconditionException(ErrorCode.E1020, jobId);
}
}
private void updateCoordAction(CoordinatorActionBean action) throws CommandException {
action.setStatus(CoordinatorActionBean.Status.KILLED);
action.incrementAndGetPending();
action.setLastModifiedTime(new Date());
try {
jpaService.execute(new CoordActionUpdateJPAExecutor(action));
}
catch (JPAExecutorException e) {
throw new CommandException(e);
}
}
@Override
public void killChildren() throws CommandException {
try {
if (actionList != null) {
for (CoordinatorActionBean action : actionList) {
if (action.getStatus() != CoordinatorActionBean.Status.FAILED
&& action.getStatus() != CoordinatorActionBean.Status.TIMEDOUT
&& action.getStatus() != CoordinatorActionBean.Status.SUCCEEDED
&& action.getStatus() != CoordinatorActionBean.Status.KILLED) {
// queue a WorkflowKillXCommand to delete the workflow job and actions
if (action.getExternalId() != null) {
queue(new KillXCommand(action.getExternalId()));
updateCoordAction(action);
LOG.debug("Killed coord action = [{0}], new status = [{1}], pending = [{2}] and queue KillXCommand for [{3}]",
action.getId(), action.getStatus(), action.getPending(), action.getExternalId());
}
else {
updateCoordAction(action);
LOG.debug("Killed coord action = [{0}], current status = [{1}], pending = [{2}]", action.getId(), action
.getStatus(), action.getPending());
}
}
}
}
jpaService.execute(new CoordJobUpdateJPAExecutor(coordJob));
LOG.debug("Killed coord actions for the coordinator=[{0}]", jobId);
}
catch (JPAExecutorException ex) {
throw new CommandException(ex);
}
}
@Override
public void notifyParent() throws CommandException {
// update bundle action
if (coordJob.getBundleId() != null) {
BundleStatusUpdateXCommand bundleStatusUpdate = new BundleStatusUpdateXCommand(coordJob, prevStatus);
bundleStatusUpdate.call();
}
}
@Override
public void updateJob() throws CommandException {
try {
jpaService.execute(new CoordJobUpdateJPAExecutor(coordJob));
}
catch (JPAExecutorException ex) {
throw new CommandException(ex);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.TransitionXCommand#getJob()
*/
@Override
public Job getJob() {
return coordJob;
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#getKey()
*/
@Override
public String getKey(){
return getName() + "_" + jobId;
}
}