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; 019 020 import org.apache.oozie.client.Job; 021 022 public abstract class ResumeTransitionXCommand extends TransitionXCommand<Void> { 023 024 /** 025 * Resume all children of the job 026 * 027 * @throws CommandException 028 */ 029 public abstract void resumeChildren() throws CommandException; 030 031 public ResumeTransitionXCommand(String name, String type, int priority) { 032 super(name, type, priority); 033 } 034 035 public ResumeTransitionXCommand(String name, String type, int priority, boolean dryrun) { 036 super(name, type, priority, dryrun); 037 } 038 039 /** 040 * Transit job to PREP from PREPSUSPENDED or to RUNNING from SUSPENDED. 041 * 042 * @see org.apache.oozie.command.TransitionXCommand#transitToNext() 043 */ 044 @Override 045 public void transitToNext() { 046 if (job == null) { 047 job = this.getJob(); 048 } 049 if (job.getStatus() == Job.Status.PREPSUSPENDED) { 050 job.setStatus(Job.Status.PREP); 051 } 052 else if (job.getStatus() == Job.Status.SUSPENDED) { 053 job.setStatus(Job.Status.RUNNING); 054 } 055 job.setPending(); 056 } 057 058 /* (non-Javadoc) 059 * @see org.apache.oozie.command.XCommand#execute() 060 */ 061 @Override 062 protected Void execute() throws CommandException { 063 transitToNext(); 064 try { 065 resumeChildren(); 066 updateJob(); 067 } finally { 068 notifyParent(); 069 } 070 return null; 071 } 072 }