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 019package org.apache.oozie.command.coord; 020 021import org.apache.oozie.CoordinatorJobBean; 022import org.apache.oozie.client.CoordinatorJob; 023import org.apache.oozie.client.Job; 024import org.apache.oozie.command.CommandException; 025import org.apache.oozie.command.PauseTransitionXCommand; 026import org.apache.oozie.command.PreconditionException; 027import org.apache.oozie.command.bundle.BundleStatusUpdateXCommand; 028import org.apache.oozie.executor.jpa.CoordJobQueryExecutor; 029import org.apache.oozie.executor.jpa.CoordJobQueryExecutor.CoordJobQuery; 030import org.apache.oozie.executor.jpa.JPAExecutorException; 031import org.apache.oozie.util.LogUtils; 032 033public class CoordPauseXCommand extends PauseTransitionXCommand { 034 private final CoordinatorJobBean coordJob; 035 private CoordinatorJob.Status prevStatus = null; 036 037 public CoordPauseXCommand(CoordinatorJobBean coordJob) { 038 super("coord_pause", "coord_pause", 1); 039 this.coordJob = coordJob; 040 } 041 042 /* (non-Javadoc) 043 * @see org.apache.oozie.command.XCommand#getEntityKey() 044 */ 045 @Override 046 public String getEntityKey() { 047 return coordJob.getId(); 048 } 049 050 /* (non-Javadoc) 051 * @see org.apache.oozie.command.XCommand#isLockRequired() 052 */ 053 @Override 054 protected boolean isLockRequired() { 055 return true; 056 } 057 058 /* (non-Javadoc) 059 * @see org.apache.oozie.command.XCommand#loadState() 060 */ 061 @Override 062 public void loadState() throws CommandException { 063 prevStatus = coordJob.getStatus(); 064 LogUtils.setLogInfo(coordJob); 065 } 066 067 /* (non-Javadoc) 068 * @see org.apache.oozie.command.XCommand#verifyPrecondition() 069 */ 070 @Override 071 protected void verifyPrecondition() throws CommandException, PreconditionException { 072 } 073 074 /* (non-Javadoc) 075 * @see org.apache.oozie.command.TransitionXCommand#notifyParent() 076 */ 077 @Override 078 public void notifyParent() throws CommandException { 079 // update bundle action 080 if (coordJob.getBundleId() != null) { 081 BundleStatusUpdateXCommand bundleStatusUpdate = new BundleStatusUpdateXCommand(coordJob, prevStatus); 082 bundleStatusUpdate.call(); 083 } 084 } 085 086 /* (non-Javadoc) 087 * @see org.apache.oozie.command.TransitionXCommand#getJob() 088 */ 089 @Override 090 public Job getJob() { 091 return coordJob; 092 } 093 094 /* (non-Javadoc) 095 * @see org.apache.oozie.command.TransitionXCommand#updateJob() 096 */ 097 @Override 098 public void updateJob() throws CommandException { 099 try { 100 CoordJobQueryExecutor.getInstance().executeUpdate(CoordJobQuery.UPDATE_COORD_JOB_STATUS, coordJob); 101 } 102 catch (JPAExecutorException e) { 103 throw new CommandException(e); 104 } 105 } 106 107 @Override 108 public void pauseChildren() throws CommandException { 109 // TODO - need revisit when revisiting coord job status redesign; 110 111 } 112 113 @Override 114 public void performWrites() throws CommandException { 115 } 116 117}