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