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
019package org.apache.oozie.executor.jpa;
020
021import java.sql.Timestamp;
022
023import javax.persistence.EntityManager;
024import javax.persistence.Query;
025
026import org.apache.oozie.ErrorCode;
027import org.apache.oozie.WorkflowActionBean;
028import org.apache.oozie.client.WorkflowAction;
029import org.apache.oozie.util.DateUtils;
030import org.apache.oozie.util.ParamChecker;
031
032/**
033 * Retrieve the workflow action bean for sla service
034 */
035public class WorkflowActionGetForSLAJPAExecutor implements JPAExecutor<WorkflowActionBean> {
036
037    private String wfActionId;
038
039    public WorkflowActionGetForSLAJPAExecutor(String wfActionId) {
040        ParamChecker.notNull(wfActionId, "wfActionId");
041        this.wfActionId = wfActionId;
042    }
043
044    @Override
045    public String getName() {
046        return "WorkflowActionGetForSLAJPAExecutor";
047    }
048
049    @Override
050    public WorkflowActionBean execute(EntityManager em) throws JPAExecutorException {
051        try {
052            Query q = em.createNamedQuery("GET_ACTION_FOR_SLA");
053            q.setParameter("id", wfActionId);
054            Object[] obj = (Object[]) q.getSingleResult();
055            return getBeanFromArray(obj);
056        }
057        catch (Exception e) {
058            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
059        }
060    }
061
062    private WorkflowActionBean getBeanFromArray(Object[] arr) {
063        WorkflowActionBean wab = new WorkflowActionBean();
064        if (arr[0] != null) {
065            wab.setId((String) arr[0]);
066        }
067        if (arr[1] != null) {
068            wab.setStatus(WorkflowAction.Status.valueOf((String) arr[1]));
069        }
070        if (arr[2] != null) {
071            wab.setStartTime(DateUtils.toDate((Timestamp) arr[2]));
072        }
073        if (arr[3] != null) {
074            wab.setEndTime(DateUtils.toDate((Timestamp) arr[3]));
075        }
076        return wab;
077    }
078}