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.sql.Timestamp;
021
022import javax.persistence.EntityManager;
023import javax.persistence.Query;
024
025import org.apache.oozie.ErrorCode;
026import org.apache.oozie.WorkflowJobBean;
027import org.apache.oozie.client.WorkflowJob;
028import org.apache.oozie.util.DateUtils;
029import org.apache.oozie.util.ParamChecker;
030
031/**
032 * Retrieve the workflow job bean for sla service
033 */
034public class WorkflowJobGetForSLAJPAExecutor implements JPAExecutor<WorkflowJobBean> {
035
036    private String wfJobId;
037
038    public WorkflowJobGetForSLAJPAExecutor(String wfJobId) {
039        ParamChecker.notNull(wfJobId, "wfJobId");
040        this.wfJobId = wfJobId;
041    }
042
043    @Override
044    public String getName() {
045        return "WorkflowJobGetForSLAJPAExecutor";
046    }
047
048    @Override
049    public WorkflowJobBean execute(EntityManager em) throws JPAExecutorException {
050        try {
051            Query q = em.createNamedQuery("GET_WORKFLOW_FOR_SLA");
052            q.setParameter("id", wfJobId);
053            Object[] obj = (Object[]) q.getSingleResult();
054            return getBeanFromArray(obj);
055        }
056        catch (Exception e) {
057            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
058        }
059    }
060
061    private WorkflowJobBean getBeanFromArray(Object[] arr) {
062        WorkflowJobBean wjb = new WorkflowJobBean();
063        if (arr[0] != null) {
064            wjb.setId((String) arr[0]);
065        }
066        if (arr[1] != null) {
067            wjb.setStatus(WorkflowJob.Status.valueOf((String) arr[1]));
068        }
069        if (arr[2] != null) {
070            wjb.setStartTime(DateUtils.toDate((Timestamp) arr[2]));
071        }
072        if (arr[3] != null) {
073            wjb.setEndTime(DateUtils.toDate((Timestamp) arr[3]));
074        }
075        return wjb;
076    }
077}