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.executor.jpa; 019 020 import java.util.List; 021 022 import javax.persistence.EntityManager; 023 import javax.persistence.Query; 024 025 import org.apache.oozie.CoordinatorActionBean; 026 import org.apache.oozie.ErrorCode; 027 import org.apache.oozie.util.ParamChecker; 028 029 /** 030 * Load coordinator action by externalId. 031 */ 032 public class CoordActionGetForExternalIdJPAExecutor implements JPAExecutor<CoordinatorActionBean> { 033 034 private String externalId = null; 035 036 public CoordActionGetForExternalIdJPAExecutor(String externalId) { 037 ParamChecker.notNull(externalId, "externalId"); 038 this.externalId = externalId; 039 } 040 041 /* (non-Javadoc) 042 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 043 */ 044 @Override 045 public String getName() { 046 return "CoordActionGetForExternalIdJPAExecutor"; 047 } 048 049 /* (non-Javadoc) 050 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 051 */ 052 @Override 053 @SuppressWarnings("unchecked") 054 public CoordinatorActionBean execute(EntityManager em) throws JPAExecutorException { 055 try { 056 CoordinatorActionBean caBean = null; 057 Query q = em.createNamedQuery("GET_COORD_ACTION_FOR_EXTERNALID"); 058 q.setParameter("externalId", externalId); 059 List<CoordinatorActionBean> actionList = q.getResultList(); 060 if (actionList.size() > 0) { 061 caBean = actionList.get(0); 062 } 063 return caBean; 064 } 065 catch (Exception e) { 066 throw new JPAExecutorException(ErrorCode.E0603, e); 067 } 068 } 069 070 }