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/
ActionKillXCommand.java
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/
ActionKillXCommand.java
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/**
* 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.wf;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.WorkflowActionBean;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.XException;
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.JPAExecutorException;
import org.apache.oozie.executor.jpa.WorkflowActionGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowActionUpdateJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowJobGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowJobUpdateJPAExecutor;
import org.apache.oozie.action.ActionExecutor;
import org.apache.oozie.action.ActionExecutorException;
import org.apache.oozie.service.ActionService;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.UUIDService;
import org.apache.oozie.service.Services;
import org.apache.oozie.util.LogUtils;
import org.apache.oozie.util.Instrumentation;
import org.apache.oozie.util.db.SLADbXOperations;
/**
* Kill workflow action and invoke action executor to kill the underlying context.
*
*/
public class ActionKillXCommand extends ActionXCommand<Void> {
private String actionId;
private String jobId;
private WorkflowJobBean wfJob;
private WorkflowActionBean wfAction;
private JPAService jpaService = null;
public ActionKillXCommand(String actionId, String type) {
super("action.kill", type, 0);
this.actionId = actionId;
this.jobId = Services.get().get(UUIDService.class).getId(actionId);
}
public ActionKillXCommand(String actionId) {
this(actionId, "action.kill");
}
@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.wfJob = jpaService.execute(new WorkflowJobGetJPAExecutor(jobId));
this.wfAction = jpaService.execute(new WorkflowActionGetJPAExecutor(actionId));
LogUtils.setLogInfo(wfJob, logInfo);
LogUtils.setLogInfo(wfAction, logInfo);
}
else {
throw new CommandException(ErrorCode.E0610);
}
}
catch (XException ex) {
throw new CommandException(ex);
}
}
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
if (wfAction.getStatus() != WorkflowActionBean.Status.KILLED) {
throw new PreconditionException(ErrorCode.E0726, wfAction.getId());
}
}
@Override
protected Void execute() throws CommandException {
LOG.debug("STARTED WorkflowActionKillXCommand for action " + actionId);
if (wfAction.isPending()) {
ActionExecutor executor = Services.get().get(ActionService.class).getExecutor(wfAction.getType());
if (executor != null) {
try {
boolean isRetry = false;
boolean isUserRetry = false;
ActionExecutorContext context = new ActionXCommand.ActionExecutorContext(wfJob, wfAction,
isRetry, isUserRetry);
incrActionCounter(wfAction.getType(), 1);
Instrumentation.Cron cron = new Instrumentation.Cron();
cron.start();
executor.kill(context, wfAction);
cron.stop();
addActionCron(wfAction.getType(), cron);
wfAction.resetPending();
wfAction.setStatus(WorkflowActionBean.Status.KILLED);
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
// Add SLA status event (KILLED) for WF_ACTION
SLADbXOperations.writeStausEvent(wfAction.getSlaXml(), wfAction.getId(), Status.KILLED,
SlaAppType.WORKFLOW_ACTION);
queue(new NotificationXCommand(wfJob, wfAction));
}
catch (ActionExecutorException ex) {
wfAction.resetPending();
wfAction.setStatus(WorkflowActionBean.Status.FAILED);
wfAction.setErrorInfo(ex.getErrorCode().toString(),
"KILL COMMAND FAILED - exception while executing job kill");
wfJob.setStatus(WorkflowJobBean.Status.KILLED);
try {
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
// What will happen to WF and COORD_ACTION, NOTIFICATION?
SLADbXOperations.writeStausEvent(wfAction.getSlaXml(), wfAction.getId(), Status.FAILED,
SlaAppType.WORKFLOW_ACTION);
LOG.warn("Exception while executing kill(). Error Code [{0}], Message[{1}]",
ex.getErrorCode(), ex.getMessage(), ex);
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
}
}
LOG.debug("ENDED WorkflowActionKillXCommand for action " + actionId);
return null;
}
}