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.CoordinatorActionBean; 022import org.apache.oozie.ErrorCode; 023import org.apache.oozie.command.CommandException; 024import org.apache.oozie.command.PreconditionException; 025import org.apache.oozie.executor.jpa.CoordActionGetForInfoJPAExecutor; 026import org.apache.oozie.executor.jpa.CoordActionGetJPAExecutor; 027import org.apache.oozie.executor.jpa.JPAExecutorException; 028import org.apache.oozie.service.JPAService; 029import org.apache.oozie.service.Services; 030import org.apache.oozie.util.ParamChecker; 031 032public class CoordActionInfoXCommand extends CoordinatorXCommand<CoordinatorActionBean> { 033 /** 034 * This class gets the Coordinator action info based on coordinator action id. 035 */ 036 private final String id; 037 038 public CoordActionInfoXCommand(String id) { 039 super("action.info", "action.info", 1); 040 this.id = ParamChecker.notEmpty(id, "id"); 041 } 042 043 /* (non-Javadoc) 044 * @see org.apache.oozie.command.XCommand#execute() 045 */ 046 @Override 047 protected CoordinatorActionBean execute() throws CommandException { 048 JPAService jpaService = Services.get().get(JPAService.class); 049 if (jpaService != null) { 050 CoordinatorActionBean action; 051 try { 052 action = jpaService.execute(new CoordActionGetForInfoJPAExecutor(this.id)); 053 } 054 catch (JPAExecutorException e) { 055 throw new CommandException(e); 056 } 057 return action; 058 } 059 else { 060 LOG.error(ErrorCode.E0610); 061 return null; 062 } 063 } 064 065 /* (non-Javadoc) 066 * @see org.apache.oozie.command.XCommand#getEntityKey() 067 */ 068 @Override 069 public String getEntityKey() { 070 return null; 071 } 072 073 /* (non-Javadoc) 074 * @see org.apache.oozie.command.XCommand#loadState() 075 */ 076 @Override 077 protected void loadState() throws CommandException { 078 } 079 080 /* (non-Javadoc) 081 * @see org.apache.oozie.command.XCommand#verifyPrecondition() 082 */ 083 @Override 084 protected void verifyPrecondition() throws CommandException, PreconditionException { 085 } 086 087 /* (non-Javadoc) 088 * @see org.apache.oozie.command.XCommand#isLockRequired() 089 */ 090 @Override 091 protected boolean isLockRequired() { 092 return false; 093 } 094}