001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.command; 016 017 import org.apache.oozie.client.Job; 018 019 public abstract class ResumeTransitionXCommand extends TransitionXCommand<Void> { 020 021 /** 022 * Resume all children of the job 023 * 024 * @throws CommandException 025 */ 026 public abstract void resumeChildren() throws CommandException; 027 028 public ResumeTransitionXCommand(String name, String type, int priority) { 029 super(name, type, priority); 030 } 031 032 public ResumeTransitionXCommand(String name, String type, int priority, boolean dryrun) { 033 super(name, type, priority, dryrun); 034 } 035 036 /** 037 * Transit job to PREP from PREPSUSPENDED or to RUNNING from SUSPENDED. 038 * 039 * @see org.apache.oozie.command.TransitionXCommand#transitToNext() 040 */ 041 @Override 042 public void transitToNext() { 043 if (job == null) { 044 job = this.getJob(); 045 } 046 if (job.getStatus() == Job.Status.PREPSUSPENDED) { 047 job.setStatus(Job.Status.PREP); 048 } 049 else if (job.getStatus() == Job.Status.SUSPENDED) { 050 job.setStatus(Job.Status.RUNNING); 051 } 052 job.setPending(); 053 } 054 055 /* (non-Javadoc) 056 * @see org.apache.oozie.command.XCommand#execute() 057 */ 058 @Override 059 protected Void execute() throws CommandException { 060 transitToNext(); 061 try { 062 resumeChildren(); 063 updateJob(); 064 } finally { 065 notifyParent(); 066 } 067 return null; 068 } 069 }