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.CoordinatorActionBean;
028import org.apache.oozie.ErrorCode;
029
030/**
031 * Load the list of running CoordinatorAction and return the list.
032 */
033public class CoordActionsRunningGetJPAExecutor implements JPAExecutor<List<String>> {
034
035    private final long checkAgeSecs;
036
037    public CoordActionsRunningGetJPAExecutor(long checkAgeSecs) {
038        this.checkAgeSecs = checkAgeSecs;
039    }
040
041    /* (non-Javadoc)
042     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
043     */
044    @Override
045    public String getName() {
046        return "CoordActionsRunningGetJPAExecutor";
047    }
048
049    /* (non-Javadoc)
050     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
051     */
052    @Override
053    @SuppressWarnings("unchecked")
054    public List<String> execute(EntityManager em) throws JPAExecutorException {
055        try {
056            Timestamp ts = new Timestamp(System.currentTimeMillis() - checkAgeSecs * 1000);
057            Query q = em.createNamedQuery("GET_RUNNING_ACTIONS_OLDER_THAN");
058            q.setParameter("lastModifiedTime", ts);
059            List<String> coordActionIds = q.getResultList();
060            return coordActionIds;
061        }
062        catch (Exception e) {
063            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
064        }
065    }
066
067}