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.coord; 019 020 import org.apache.oozie.CoordinatorActionBean; 021 import org.apache.oozie.ErrorCode; 022 import org.apache.oozie.command.CommandException; 023 import org.apache.oozie.command.PreconditionException; 024 import org.apache.oozie.executor.jpa.CoordActionGetForInfoJPAExecutor; 025 import org.apache.oozie.executor.jpa.CoordActionGetJPAExecutor; 026 import org.apache.oozie.executor.jpa.JPAExecutorException; 027 import org.apache.oozie.service.JPAService; 028 import org.apache.oozie.service.Services; 029 import org.apache.oozie.util.ParamChecker; 030 031 public class CoordActionInfoXCommand extends CoordinatorXCommand<CoordinatorActionBean> { 032 /** 033 * This class gets the Coordinator action info based on coordinator action id. 034 */ 035 private final String id; 036 037 public CoordActionInfoXCommand(String id) { 038 super("action.info", "action.info", 1); 039 this.id = ParamChecker.notEmpty(id, "id"); 040 } 041 042 /* (non-Javadoc) 043 * @see org.apache.oozie.command.XCommand#execute() 044 */ 045 @Override 046 protected CoordinatorActionBean execute() throws CommandException { 047 JPAService jpaService = Services.get().get(JPAService.class); 048 if (jpaService != null) { 049 CoordinatorActionBean action; 050 try { 051 action = jpaService.execute(new CoordActionGetForInfoJPAExecutor(this.id)); 052 } 053 catch (JPAExecutorException e) { 054 throw new CommandException(e); 055 } 056 return action; 057 } 058 else { 059 LOG.error(ErrorCode.E0610); 060 return null; 061 } 062 } 063 064 /* (non-Javadoc) 065 * @see org.apache.oozie.command.XCommand#getEntityKey() 066 */ 067 @Override 068 public String getEntityKey() { 069 return null; 070 } 071 072 /* (non-Javadoc) 073 * @see org.apache.oozie.command.XCommand#loadState() 074 */ 075 @Override 076 protected void loadState() throws CommandException { 077 } 078 079 /* (non-Javadoc) 080 * @see org.apache.oozie.command.XCommand#verifyPrecondition() 081 */ 082 @Override 083 protected void verifyPrecondition() throws CommandException, PreconditionException { 084 } 085 086 /* (non-Javadoc) 087 * @see org.apache.oozie.command.XCommand#isLockRequired() 088 */ 089 @Override 090 protected boolean isLockRequired() { 091 return false; 092 } 093 }