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.coord; 016 017 import java.util.List; 018 import java.util.Map; 019 020 import org.apache.oozie.CoordinatorJobInfo; 021 import org.apache.oozie.ErrorCode; 022 import org.apache.oozie.XException; 023 import org.apache.oozie.command.CommandException; 024 import org.apache.oozie.command.PreconditionException; 025 import org.apache.oozie.executor.jpa.CoordJobInfoGetJPAExecutor; 026 import org.apache.oozie.service.JPAService; 027 import org.apache.oozie.service.Services; 028 029 /** 030 * The command to get a job info for a list of coordinator jobs by given filters. 031 */ 032 public class CoordJobsXCommand extends CoordinatorXCommand<CoordinatorJobInfo> { 033 private Map<String, List<String>> filter; 034 private int start = 1; 035 private int len = 50; 036 037 public CoordJobsXCommand(Map<String, List<String>> filter, int start, int length) { 038 super("coord.job.info", "coord.job.info", 1); 039 this.filter = filter; 040 this.start = start; 041 this.len = length; 042 } 043 044 /* (non-Javadoc) 045 * @see org.apache.oozie.command.XCommand#isLockRequired() 046 */ 047 @Override 048 protected boolean isLockRequired() { 049 return false; 050 } 051 052 /* (non-Javadoc) 053 * @see org.apache.oozie.command.XCommand#getEntityKey() 054 */ 055 @Override 056 protected String getEntityKey() { 057 return null; 058 } 059 060 /* (non-Javadoc) 061 * @see org.apache.oozie.command.XCommand#loadState() 062 */ 063 @Override 064 protected void loadState() throws CommandException { 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.XCommand#execute() 076 */ 077 @Override 078 protected CoordinatorJobInfo execute() throws CommandException { 079 try { 080 JPAService jpaService = Services.get().get(JPAService.class); 081 CoordinatorJobInfo coordInfo = null; 082 if (jpaService != null) { 083 coordInfo = jpaService.execute(new CoordJobInfoGetJPAExecutor(filter, start, len)); 084 } 085 else { 086 LOG.error(ErrorCode.E0610); 087 } 088 return coordInfo; 089 } 090 catch (XException ex) { 091 throw new CommandException(ex); 092 } 093 } 094 095 }