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.sla;
019
020import javax.persistence.EntityManager;
021import javax.persistence.Query;
022
023import org.apache.oozie.ErrorCode;
024import org.apache.oozie.executor.jpa.JPAExecutor;
025import org.apache.oozie.executor.jpa.JPAExecutorException;
026import org.apache.oozie.sla.SLARegistrationBean;
027
028/**
029 * Load SLARegistrationBean on restart
030 */
031public 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}