/**
* 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 java.util.List;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.WorkflowActionBean;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.client.WorkflowJob;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.PreconditionException;
import org.apache.oozie.command.coord.CoordActionUpdateXCommand;
import org.apache.oozie.executor.jpa.JPAExecutorException;
import org.apache.oozie.executor.jpa.WorkflowActionRetryManualGetJPAExecutor;
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.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.workflow.WorkflowException;
import org.apache.oozie.workflow.WorkflowInstance;
import org.apache.oozie.workflow.lite.LiteWorkflowInstance;
public class SuspendXCommand extends WorkflowXCommand<Void> {
private final String wfid;
private WorkflowJobBean wfJobBean;
private JPAService jpaService;
public SuspendXCommand(String id) {
super("suspend", "suspend", 1);
this.wfid = ParamChecker.notEmpty(id, "wfid");
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#execute()
*/
@Override
protected Void execute() throws CommandException {
InstrumentUtils.incrJobCounter(getName(), 1, getInstrumentation());
try {
suspendJob(this.jpaService, this.wfJobBean, this.wfid, null);
jpaService.execute(new WorkflowJobUpdateJPAExecutor(this.wfJobBean));
queue(new NotificationXCommand(this.wfJobBean));
}
catch (WorkflowException e) {
throw new CommandException(e);
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
finally {
// update coordinator action
new CoordActionUpdateXCommand(wfJobBean).call();
}
return null;
}
/**
* Suspend the workflow job and pending flag to false for the actions that are START_RETRY or START_MANUAL or
* END_RETRY or END_MANUAL
*
* @param jpaService jpa service
* @param workflow workflow job
* @param id workflow job id
* @param actionId workflow action id
* @throws WorkflowException thrown if failed to suspend workflow instance
* @throws CommandException thrown if unable set pending false for actions
*/
public static void suspendJob(JPAService jpaService, WorkflowJobBean workflow, String id, String actionId)
throws WorkflowException, CommandException {
if (workflow.getStatus() == WorkflowJob.Status.RUNNING) {
workflow.getWorkflowInstance().suspend();
WorkflowInstance wfInstance = workflow.getWorkflowInstance();
((LiteWorkflowInstance) wfInstance).setStatus(WorkflowInstance.Status.SUSPENDED);
workflow.setStatus(WorkflowJob.Status.SUSPENDED);
workflow.setWorkflowInstance(wfInstance);
setPendingFalseForActions(jpaService, id, actionId);
}
}
/**
* Set pending flag to false for the actions that are START_RETRY or START_MANUAL or END_RETRY or END_MANUAL
* <p/>
*
* @param jpaService jpa service
* @param id workflow job id
* @param actionId workflow action id
* @throws CommandException thrown if failed to update workflow action
*/
private static void setPendingFalseForActions(JPAService jpaService, String id, String actionId)
throws CommandException {
List<WorkflowActionBean> actions;
try {
actions = jpaService.execute(new WorkflowActionRetryManualGetJPAExecutor(id));
for (WorkflowActionBean action : actions) {
if (actionId != null && actionId.equals(action.getId())) {
// this action has been changed in handleNonTransient()
continue;
}
else {
action.resetPendingOnly();
}
jpaService.execute(new WorkflowActionUpdateJPAExecutor(action));
}
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#eagerLoadState()
*/
@Override
protected void eagerLoadState() throws CommandException {
super.eagerLoadState();
try {
jpaService = Services.get().get(JPAService.class);
if (jpaService != null) {
this.wfJobBean = jpaService.execute(new WorkflowJobGetJPAExecutor(this.wfid));
}
else {
throw new CommandException(ErrorCode.E0610);
}
}
catch (Exception ex) {
throw new CommandException(ErrorCode.E0603, ex);
}
LogUtils.setLogInfo(this.wfJobBean, logInfo);
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#eagerVerifyPrecondition()
*/
@Override
protected void eagerVerifyPrecondition() throws CommandException, PreconditionException {
super.eagerVerifyPrecondition();
if (this.wfJobBean.getStatus() != WorkflowJob.Status.RUNNING) {
throw new PreconditionException(ErrorCode.E0727, this.wfJobBean.getStatus());
}
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#getEntityKey()
*/
@Override
protected String getEntityKey() {
return this.wfid;
}
/* (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 {
}
/* (non-Javadoc)
* @see org.apache.oozie.command.XCommand#verifyPrecondition()
*/
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
}
}