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