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.executor.jpa; 020 021import java.util.List; 022 023import javax.persistence.EntityManager; 024import javax.persistence.Query; 025 026import org.apache.oozie.ErrorCode; 027import org.apache.oozie.WorkflowActionBean; 028import org.apache.oozie.util.ParamChecker; 029import org.apache.oozie.util.XLog; 030 031/** 032 * Load the WorkflowAction into a Bean and return it. 033 */ 034public class WorkflowActionGetJPAExecutor implements JPAExecutor<WorkflowActionBean> { 035 036 private String wfActionId = null; 037 038 public WorkflowActionGetJPAExecutor(String wfActionId) { 039 ParamChecker.notNull(wfActionId, "wfActionId"); 040 this.wfActionId = wfActionId; 041 } 042 043 /* (non-Javadoc) 044 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 045 */ 046 @Override 047 public String getName() { 048 return "WorkflowActionGetJPAExecutor"; 049 } 050 051 /* (non-Javadoc) 052 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 053 */ 054 @Override 055 @SuppressWarnings("unchecked") 056 public WorkflowActionBean execute(EntityManager em) throws JPAExecutorException { 057 List<WorkflowActionBean> waBeans; 058 try { 059 Query q = em.createNamedQuery("GET_ACTION"); 060 q.setParameter("id", wfActionId); 061 waBeans = q.getResultList(); 062 } 063 catch (Exception e) { 064 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 065 } 066 WorkflowActionBean bean = null; 067 if (waBeans != null && waBeans.size() > 0) { 068 bean = waBeans.get(0); 069 return bean; 070 } 071 else { 072 throw new JPAExecutorException(ErrorCode.E0605, wfActionId); 073 } 074 } 075}