/**
* 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.sql.Timestamp;
import java.util.Date;
import org.apache.oozie.CoordinatorActionBean;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.XException;
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;
import org.apache.oozie.util.db.SLADbOperations;
import org.apache.oozie.client.CoordinatorAction;
import org.apache.oozie.client.WorkflowJob;
import org.apache.oozie.client.SLAEvent.SlaAppType;
import org.apache.oozie.client.SLAEvent.Status;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.PreconditionException;
import org.apache.oozie.executor.jpa.CoordActionGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowJobGetJPAExecutor;
/**
* The command checks workflow status for coordinator action.
*/
public class CoordActionCheckXCommand extends CoordinatorXCommand<Void> {
private String actionId;
private int actionCheckDelay;
private CoordinatorActionBean coordAction = null;
private JPAService jpaService = null;
public CoordActionCheckXCommand(String actionId, int actionCheckDelay) {
super("coord_action_check", "coord_action_check", 0);
this.actionId = ParamChecker.notEmpty(actionId, "actionId");
this.actionCheckDelay = actionCheckDelay;
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#execute()
*/
@Override
protected Void execute() throws CommandException {
try {
InstrumentUtils.incrJobCounter(getName(), 1, getInstrumentation());
WorkflowJobBean wf = jpaService.execute(new WorkflowJobGetJPAExecutor(coordAction.getExternalId()));
Status slaStatus = null;
if (wf.getStatus() == WorkflowJob.Status.SUCCEEDED) {
coordAction.setStatus(CoordinatorAction.Status.SUCCEEDED);
slaStatus = Status.SUCCEEDED;
}
else {
if (wf.getStatus() == WorkflowJob.Status.FAILED) {
coordAction.setStatus(CoordinatorAction.Status.FAILED);
slaStatus = Status.FAILED;
}
else {
if (wf.getStatus() == WorkflowJob.Status.KILLED) {
coordAction.setStatus(CoordinatorAction.Status.KILLED);
slaStatus = Status.KILLED;
}
else {
LOG.warn("Unexpected workflow " + wf.getId() + " STATUS " + wf.getStatus());
coordAction.setLastModifiedTime(new Date());
jpaService.execute(new org.apache.oozie.executor.jpa.CoordActionUpdateJPAExecutor(coordAction));
return null;
}
}
}
LOG.debug("Updating Coordintaor actionId :" + coordAction.getId() + "status to ="
+ coordAction.getStatus());
coordAction.setLastModifiedTime(new Date());
jpaService.execute(new org.apache.oozie.executor.jpa.CoordActionUpdateJPAExecutor(coordAction));
if (slaStatus != null) {
SLADbOperations.writeStausEvent(coordAction.getSlaXml(), coordAction.getId(), slaStatus,
SlaAppType.COORDINATOR_ACTION, LOG);
}
}
catch (XException ex) {
LOG.warn("CoordActionCheckCommand Failed ", ex);
throw new CommandException(ex);
}
return null;
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#getEntityKey()
*/
@Override
protected String getEntityKey() {
return actionId;
}
/* (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 {
try {
jpaService = Services.get().get(JPAService.class);
if (jpaService != null) {
coordAction = jpaService.execute(new CoordActionGetJPAExecutor(actionId));
LogUtils.setLogInfo(coordAction, logInfo);
}
else {
throw new CommandException(ErrorCode.E0610);
}
}
catch (XException ex) {
throw new CommandException(ex);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#verifyPrecondition()
*/
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
// if the action has been updated, quit this command
Timestamp actionCheckTs = new Timestamp(System.currentTimeMillis() - actionCheckDelay * 1000);
Timestamp cactionLmt = coordAction.getLastModifiedTimestamp();
if (cactionLmt.after(actionCheckTs)) {
throw new PreconditionException(ErrorCode.E1100, "The coord action :" + actionId
+ " has been udated. Ignore CoordActionCheckCommand!");
}
if (coordAction.getStatus().equals(CoordinatorAction.Status.SUCCEEDED)
|| coordAction.getStatus().equals(CoordinatorAction.Status.FAILED)
|| coordAction.getStatus().equals(CoordinatorAction.Status.KILLED)) {
throw new PreconditionException(ErrorCode.E1100);
}
}
}