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 */
018package org.apache.oozie.executor.jpa;
019
020import java.sql.Timestamp;
021import java.util.ArrayList;
022import java.util.List;
023
024import javax.persistence.EntityManager;
025import javax.persistence.Query;
026
027import org.apache.oozie.ErrorCode;
028import org.apache.oozie.util.ParamChecker;
029
030public class CoordActionsGetReadyGroupbyJobIDJPAExecutor implements JPAExecutor<List<String>>{
031    private long checkAgeSecs = 0;
032
033    public CoordActionsGetReadyGroupbyJobIDJPAExecutor(final long checkAgeSecs) {
034        ParamChecker.notNull(checkAgeSecs, "checkAgeSecs");
035        this.checkAgeSecs = checkAgeSecs;
036    }
037
038    /* (non-Javadoc)
039     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
040     */
041    @Override
042    public String getName() {
043        return "CoordActionsGetReadyGroupbyJobIDJPAExecutor";
044    }
045
046    /* (non-Javadoc)
047     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
048     */
049    @Override
050    public List<String> execute(EntityManager em) throws JPAExecutorException {
051        List<String> jobids = new ArrayList<String>();
052        try {
053            Query q = em.createNamedQuery("GET_READY_ACTIONS_GROUP_BY_JOBID");
054            Timestamp ts = new Timestamp(System.currentTimeMillis() - checkAgeSecs * 1000);
055            q.setParameter(1, ts);
056            List<Object[]> list = q.getResultList();
057
058            for (Object[] arr : list) {
059                if (arr != null && arr[0] != null) {
060                    jobids.add((String) arr[0]);
061                }
062            }
063
064            return jobids;
065        }
066        catch (IllegalStateException e) {
067            throw new JPAExecutorException(ErrorCode.E0601, e.getMessage(), e);
068        }
069    }
070
071}