001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.oozie.command.wf;
019
020 import java.util.Date;
021
022 import org.apache.oozie.WorkflowActionBean;
023 import org.apache.oozie.WorkflowJobBean;
024 import org.apache.oozie.client.WorkflowJob;
025 import org.apache.oozie.command.CommandException;
026 import org.apache.oozie.store.StoreException;
027 import org.apache.oozie.store.WorkflowStore;
028 import org.apache.oozie.util.ParamChecker;
029 import org.apache.oozie.util.XLog;
030 import org.apache.oozie.workflow.WorkflowException;
031 import org.apache.oozie.workflow.WorkflowInstance;
032 import org.apache.oozie.workflow.lite.LiteWorkflowInstance;
033
034 public class ResumeCommand extends WorkflowCommand<Void> {
035
036 private String id;
037
038 public ResumeCommand(String id) {
039 super("resume", "resume", 1, XLog.STD);
040 this.id = ParamChecker.notEmpty(id, "id");
041 }
042
043 @Override
044 protected Void call(WorkflowStore store) throws StoreException, CommandException {
045 try {
046 WorkflowJobBean workflow = store.getWorkflow(id, false);
047 setLogInfo(workflow);
048 if (workflow.getStatus() == WorkflowJob.Status.SUSPENDED) {
049 incrJobCounter(1);
050 workflow.getWorkflowInstance().resume();
051 WorkflowInstance wfInstance = workflow.getWorkflowInstance();
052 ((LiteWorkflowInstance) wfInstance).setStatus(WorkflowInstance.Status.RUNNING);
053 workflow.setWorkflowInstance(wfInstance);
054 workflow.setStatus(WorkflowJob.Status.RUNNING);
055
056 for (WorkflowActionBean action : store.getActionsForWorkflow(id, false)) {
057
058 // Set pending flag to true for the actions that are START_RETRY or
059 // START_MANUAL or END_RETRY or END_MANUAL
060 if (action.isRetryOrManual()) {
061 action.setPendingOnly();
062 store.updateAction(action);
063 }
064
065 if (action.isPending()) {
066 if (action.getStatus() == WorkflowActionBean.Status.PREP
067 || action.getStatus() == WorkflowActionBean.Status.START_MANUAL) {
068 queueCallable(new ActionStartCommand(action.getId(), action.getType()));
069 }
070 else {
071 if (action.getStatus() == WorkflowActionBean.Status.START_RETRY) {
072 Date nextRunTime = action.getPendingAge();
073 queueCallable(new ActionStartCommand(action.getId(), action.getType()),
074 nextRunTime.getTime() - System.currentTimeMillis());
075 }
076 else {
077 if (action.getStatus() == WorkflowActionBean.Status.DONE
078 || action.getStatus() == WorkflowActionBean.Status.END_MANUAL) {
079 queueCallable(new ActionEndCommand(action.getId(), action.getType()));
080 }
081 else {
082 if (action.getStatus() == WorkflowActionBean.Status.END_RETRY) {
083 Date nextRunTime = action.getPendingAge();
084 queueCallable(new ActionEndCommand(action.getId(), action.getType()),
085 nextRunTime.getTime() - System.currentTimeMillis());
086 }
087 }
088 }
089 }
090
091 }
092 }
093
094 store.updateWorkflow(workflow);
095 queueCallable(new NotificationCommand(workflow));
096 }
097 return null;
098 }
099 catch (WorkflowException ex) {
100 throw new CommandException(ex);
101 }
102 }
103
104 @Override
105 protected Void execute(WorkflowStore store) throws CommandException, StoreException {
106 XLog.getLog(getClass()).debug("STARTED ResumeCommand for action " + id);
107 try {
108 if (lock(id)) {
109 call(store);
110 }
111 else {
112 queueCallable(new KillCommand(id), LOCK_FAILURE_REQUEUE_INTERVAL);
113 XLog.getLog(getClass()).warn("Resume lock was not acquired - failed {0}", id);
114 }
115 }
116 catch (InterruptedException e) {
117 queueCallable(new KillCommand(id), LOCK_FAILURE_REQUEUE_INTERVAL);
118 XLog.getLog(getClass()).warn("ResumeCommand lock was not acquired - interrupted exception failed {0}", id);
119 }
120 finally {
121 XLog.getLog(getClass()).debug("ENDED ResumeCommand for action " + id);
122 }
123 return null;
124 }
125 }