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;
021import javax.persistence.EntityManager;
022import javax.persistence.Query;
023
024import org.apache.oozie.CoordinatorActionBean;
025import org.apache.oozie.ErrorCode;
026import org.apache.oozie.client.CoordinatorAction;
027import org.apache.oozie.util.DateUtils;
028import org.apache.oozie.util.ParamChecker;
029
030/**
031 * JPAExecutor to get attributes of CoordinatorActionBean required by SLAService on restart
032 */
033public class CoordActionGetForSLAJPAExecutor implements JPAExecutor<CoordinatorActionBean> {
034
035    private String coordActionId;
036
037    public CoordActionGetForSLAJPAExecutor(String coordActionId) {
038        ParamChecker.notNull(coordActionId, "coordActionId");
039        this.coordActionId = coordActionId;
040    }
041
042    @Override
043    public String getName() {
044        return "CoordActionGetForSLAJPAExecutor";
045    }
046
047    @Override
048    public CoordinatorActionBean execute(EntityManager em) throws JPAExecutorException {
049        try {
050            Query q = em.createNamedQuery("GET_COORD_ACTION_FOR_SLA");
051            q.setParameter("id", coordActionId);
052            Object[] obj = (Object[]) q.getSingleResult();
053            CoordinatorActionBean caBean = getBeanForRunningCoordAction(obj);
054            return caBean;
055        }
056        catch (Exception e) {
057            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
058        }
059
060    }
061
062    private CoordinatorActionBean getBeanForRunningCoordAction(Object[] arr) {
063        CoordinatorActionBean bean = new CoordinatorActionBean();
064        if (arr[0] != null) {
065            bean.setId((String) arr[0]);
066        }
067        if (arr[1] != null) {
068            bean.setJobId((String) arr[1]);
069        }
070        if (arr[2] != null) {
071            bean.setStatus(CoordinatorAction.Status.valueOf((String) arr[2]));
072        }
073        if (arr[3] != null) {
074            bean.setExternalId((String) arr[3]);
075        }
076        if (arr[4] != null) {
077            bean.setLastModifiedTime(DateUtils.toDate((Timestamp)arr[4]));
078        }
079        return bean;
080    }
081}