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.util.ArrayList;
021    import java.util.List;
022    
023    import javax.persistence.EntityManager;
024    import javax.persistence.Query;
025    
026    import org.apache.oozie.CoordinatorActionBean;
027    import org.apache.oozie.ErrorCode;
028    import org.apache.oozie.util.ParamChecker;
029    
030    /**
031     * Load coordinator actions by start and len (a subset) for a coordinator job.
032     */
033    public class CoordJobGetActionsSubsetJPAExecutor implements JPAExecutor<List<CoordinatorActionBean>> {
034    
035        private String coordJobId = null;
036        private int start = 1;
037        private int len = 50;
038    
039        public CoordJobGetActionsSubsetJPAExecutor(String coordJobId) {
040            ParamChecker.notNull(coordJobId, "coordJobId");
041            this.coordJobId = coordJobId;
042        }
043    
044        public CoordJobGetActionsSubsetJPAExecutor(String coordJobId, int start, int len) {
045            this(coordJobId);
046            this.start = start;
047            this.len = len;
048        }
049    
050        @Override
051        public String getName() {
052            return "CoordJobGetActionsSubsetJPAExecutor";
053        }
054    
055        @Override
056        @SuppressWarnings("unchecked")
057        public List<CoordinatorActionBean> execute(EntityManager em) throws JPAExecutorException {
058            List<CoordinatorActionBean> actions;
059            List<CoordinatorActionBean> actionList = new ArrayList<CoordinatorActionBean>();
060            try {
061                Query q = em.createNamedQuery("GET_ACTIONS_FOR_COORD_JOB");
062                q.setParameter("jobId", coordJobId);
063                q.setFirstResult(start - 1);
064                q.setMaxResults(len);
065                actions = q.getResultList();
066                for (CoordinatorActionBean a : actions) {
067                    CoordinatorActionBean aa = getBeanForRunningCoordAction(a);
068                    actionList.add(aa);
069                }
070            }
071            catch (Exception e) {
072                throw new JPAExecutorException(ErrorCode.E0603, e);
073            }
074            return actionList;
075        }
076    
077        private CoordinatorActionBean getBeanForRunningCoordAction(CoordinatorActionBean a) {
078            if (a != null) {
079                CoordinatorActionBean action = new CoordinatorActionBean();
080                action.setId(a.getId());
081                action.setActionNumber(a.getActionNumber());
082                action.setActionXml(a.getActionXml());
083                action.setConsoleUrl(a.getConsoleUrl());
084                action.setCreatedConf(a.getCreatedConf());
085                action.setExternalStatus(a.getExternalStatus());
086                action.setMissingDependencies(a.getMissingDependencies());
087                action.setRunConf(a.getRunConf());
088                action.setTimeOut(a.getTimeOut());
089                action.setTrackerUri(a.getTrackerUri());
090                action.setType(a.getType());
091                action.setCreatedTime(a.getCreatedTime());
092                action.setExternalId(a.getExternalId());
093                action.setJobId(a.getJobId());
094                action.setLastModifiedTime(a.getLastModifiedTime());
095                action.setNominalTime(a.getNominalTime());
096                action.setSlaXml(a.getSlaXml());
097                action.setStatus(a.getStatus());
098                return action;
099            }
100            return null;
101        }
102    
103    }