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 */ 018package org.apache.oozie.executor.jpa; 019 020import java.util.List; 021 022import javax.persistence.EntityManager; 023import javax.persistence.Query; 024 025import org.apache.oozie.ErrorCode; 026import org.apache.oozie.WorkflowActionBean; 027import org.apache.oozie.util.ParamChecker; 028import org.apache.oozie.util.XLog; 029 030/** 031 * Load the WorkflowAction into a Bean and return it. 032 */ 033public class WorkflowActionGetJPAExecutor implements JPAExecutor<WorkflowActionBean> { 034 035 private String wfActionId = null; 036 037 public WorkflowActionGetJPAExecutor(String wfActionId) { 038 ParamChecker.notNull(wfActionId, "wfActionId"); 039 this.wfActionId = wfActionId; 040 } 041 042 /* (non-Javadoc) 043 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 044 */ 045 @Override 046 public String getName() { 047 return "WorkflowActionGetJPAExecutor"; 048 } 049 050 /* (non-Javadoc) 051 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 052 */ 053 @Override 054 @SuppressWarnings("unchecked") 055 public WorkflowActionBean execute(EntityManager em) throws JPAExecutorException { 056 List<WorkflowActionBean> waBeans; 057 try { 058 Query q = em.createNamedQuery("GET_ACTION"); 059 q.setParameter("id", wfActionId); 060 waBeans = q.getResultList(); 061 } 062 catch (Exception e) { 063 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 064 } 065 WorkflowActionBean bean = null; 066 if (waBeans != null && waBeans.size() > 0) { 067 bean = waBeans.get(0); 068 return bean; 069 } 070 else { 071 throw new JPAExecutorException(ErrorCode.E0605, wfActionId); 072 } 073 } 074}