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.ErrorCode;
029    import org.apache.oozie.client.CoordinatorAction;
030    import org.apache.oozie.util.DateUtils;
031    import org.apache.oozie.util.ParamChecker;
032    
033    /**
034     * Load the Coordinator actions which are not completed for a given Coordinator job
035     */
036    public class CoordJobGetActionsNotCompletedJPAExecutor implements JPAExecutor<List<CoordinatorActionBean>> {
037    
038        private String coordJobId = null;
039    
040        public CoordJobGetActionsNotCompletedJPAExecutor(String coordJobId) {
041            ParamChecker.notNull(coordJobId, "coordJobId");
042            this.coordJobId = coordJobId;
043        }
044    
045        @Override
046        public String getName() {
047            return "CoordJobGetActionsNotCompletedJPAExecutor";
048        }
049    
050        @Override
051        @SuppressWarnings("unchecked")
052        public List<CoordinatorActionBean> execute(EntityManager em) throws JPAExecutorException {
053            try {
054                List<CoordinatorActionBean> actionBeansList = new ArrayList<CoordinatorActionBean>();
055                Query q = em.createNamedQuery("GET_COORD_ACTIONS_NOT_COMPLETED");
056                q.setParameter("jobId", coordJobId);
057                List<Object[]> objectArrList = q.getResultList();
058    
059                for (Object[] arr : objectArrList) {
060                    CoordinatorActionBean caa = getBeanForCoordinatorActionFromArray(arr);
061                    actionBeansList.add(caa);
062                }
063                return actionBeansList;
064            }
065            catch (Exception e) {
066                throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
067            }
068        }
069    
070        /*
071         * A Coordinator action bean is constructed from an array of objects.
072         * ActionId, status, pending and externalId of the Coordinator action are
073         * updated. If values of id, status and externalId fetched from db are
074         * null, they will be automatically initialized to default values of null as
075         * they are Strings. If value of pending fetched from db is null, it will be
076         * initialized with default value of 0 as it is a int.
077         */
078        private CoordinatorActionBean getBeanForCoordinatorActionFromArray(Object[] arr) {
079            CoordinatorActionBean bean = new CoordinatorActionBean();
080            if (arr[0] != null) {
081                bean.setId((String) arr[0]);
082            }
083            if (arr[1] != null) {
084                bean.setStatus(CoordinatorAction.Status.valueOf((String) arr[1]));
085            }
086            if (arr[2] != null) {
087                bean.setPending((Integer) arr[2]);
088            }
089            else{
090                bean.setPending(0);
091            }
092            if (arr[3] != null) {
093                bean.setExternalId((String) arr[3]);
094            }
095            if (arr[4] != null) {
096                bean.setPushMissingDependencies((String) arr[4]);
097            }
098            if (arr[5] != null){
099                bean.setNominalTime(DateUtils.toDate((Timestamp) arr[5]));
100            }
101            if (arr[6] != null){
102                bean.setCreatedTime(DateUtils.toDate((Timestamp) arr[6]));
103            }
104            if (arr[7] != null) {
105                bean.setJobId((String) arr[7]);
106            }
107            return bean;
108        }
109    
110    }