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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.sla;
019
020 import javax.persistence.EntityManager;
021 import javax.persistence.Query;
022
023 import org.apache.oozie.ErrorCode;
024 import org.apache.oozie.executor.jpa.JPAExecutor;
025 import org.apache.oozie.executor.jpa.JPAExecutorException;
026 import org.apache.oozie.sla.SLARegistrationBean;
027
028 /**
029 * Load SLARegistrationBean on restart
030 */
031 public class SLARegistrationGetOnRestartJPAExecutor implements JPAExecutor<SLARegistrationBean> {
032
033 private String id;
034
035 public SLARegistrationGetOnRestartJPAExecutor(String id) {
036 this.id = id;
037 }
038
039 @Override
040 public String getName() {
041 return "SLARegistrationGetOnRestartJPAExecutor";
042 }
043
044 @Override
045 public SLARegistrationBean execute(EntityManager em) throws JPAExecutorException {
046 try {
047 Query q = em.createNamedQuery("GET_SLA_REG_ON_RESTART");
048 q.setParameter("id", id);
049 Object[] obj = (Object[]) q.getSingleResult();
050 return getBeanFromObj(obj);
051 }
052 catch (Exception e) {
053 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
054 }
055 }
056
057 private SLARegistrationBean getBeanFromObj(Object[] arr) {
058 SLARegistrationBean bean = new SLARegistrationBean();
059 if (arr[0] != null) {
060 bean.setNotificationMsg((String) arr[0]);
061 }
062 if (arr[1] != null) {
063 bean.setUpstreamApps((String) arr[1]);
064 }
065 if (arr[2] != null) {
066 bean.setSlaConfig((String) arr[2]);
067 }
068 if (arr[3] != null) {
069 bean.setJobData((String) arr[3]);
070 }
071 return bean;
072 }
073
074 }