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