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 import java.util.ArrayList;
022 import java.util.List;
023
024 import javax.persistence.EntityManager;
025 import javax.persistence.Query;
026
027 import org.apache.oozie.CoordinatorActionBean;
028 import org.apache.oozie.CoordinatorJobBean;
029 import org.apache.oozie.ErrorCode;
030 import org.apache.oozie.client.CoordinatorAction;
031 import org.apache.oozie.client.Job.Status;
032 import org.apache.oozie.util.DateUtils;
033 import org.apache.oozie.util.ParamChecker;
034
035 /**
036 * Load the running Coordinator actions for a given Coordinator job
037 */
038 public class CoordJobGetActionsRunningJPAExecutor implements JPAExecutor<List<CoordinatorActionBean>> {
039
040 private String coordJobId = null;
041
042 public CoordJobGetActionsRunningJPAExecutor(String coordJobId) {
043 ParamChecker.notNull(coordJobId, "coordJobId");
044 this.coordJobId = coordJobId;
045 }
046
047 @Override
048 public String getName() {
049 return "CoordJobGetActionsRunningJPAExecutor";
050 }
051
052 @Override
053 @SuppressWarnings("unchecked")
054 public List<CoordinatorActionBean> execute(EntityManager em) throws JPAExecutorException {
055 try {
056 List<CoordinatorActionBean> actionBeansList = new ArrayList<CoordinatorActionBean>();
057 Query q = em.createNamedQuery("GET_COORD_ACTIONS_RUNNING");
058 q.setParameter("jobId", coordJobId);
059 List<Object[]> objectArrList = q.getResultList();
060 for (Object[] arr : objectArrList) {
061 CoordinatorActionBean caa = getBeanForCoordinatorActionFromArray(arr);
062 actionBeansList.add(caa);
063 }
064 return actionBeansList;
065 }
066 catch (Exception e) {
067 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
068 }
069 }
070
071 /*
072 * A Coordinator action bean is constructed from an array of objects.
073 * ActionId, status, pending and externalId of the Coordinator action are
074 * updated. If values of id, status and externalId fetched from db are
075 * null, they will be automatically initialized to default values of null as
076 * they are Strings. If value of pending fetched from db is null, it will be
077 * initialized with default value of 0 as it is a int.
078 */
079 private CoordinatorActionBean getBeanForCoordinatorActionFromArray(Object[] arr) {
080 CoordinatorActionBean bean = new CoordinatorActionBean();
081 if (arr[0] != null) {
082 bean.setId((String) arr[0]);
083 }
084 if (arr[1] != null) {
085 bean.setStatus(CoordinatorAction.Status.valueOf((String) arr[1]));
086 }
087 if (arr[2] != null) {
088 bean.setPending((Integer) arr[2]);
089 }
090 if (arr[3] != null) {
091 bean.setExternalId((String) arr[3]);
092 }
093 if (arr[4] != null){
094 bean.setNominalTime(DateUtils.toDate((Timestamp) arr[4]));
095 }
096 if (arr[5] != null){
097 bean.setCreatedTime(DateUtils.toDate((Timestamp) arr[5]));
098 }
099 return bean;
100 }
101
102 }