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.Date;
023import java.util.List;
024
025import javax.persistence.EntityManager;
026import javax.persistence.Query;
027
028import org.apache.oozie.CoordinatorJobBean;
029import org.apache.oozie.ErrorCode;
030import org.apache.oozie.util.ParamChecker;
031
032/**
033 * JPA command to get coordinator jobs which are qualify for Materialization.
034 */
035public class CoordJobsToBeMaterializedJPAExecutor implements JPAExecutor<List<CoordinatorJobBean>> {
036
037    private Date dateInput;
038    private int limit;
039
040    /**
041     * @param date
042     * @param limit
043     */
044    public CoordJobsToBeMaterializedJPAExecutor(Date date, int limit) {
045        ParamChecker.notNull(date, "Coord Job Materialization Date");
046        this.dateInput = date;
047        this.limit = limit;
048    }
049
050    /* (non-Javadoc)
051     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
052     */
053    @SuppressWarnings("unchecked")
054    @Override
055    public List<CoordinatorJobBean> execute(EntityManager em) throws JPAExecutorException {
056        List<CoordinatorJobBean> cjBeans;
057        try {
058            Query q = em.createNamedQuery("GET_COORD_JOBS_OLDER_FOR_MATERILZATION");
059            q.setParameter("matTime", new Timestamp(this.dateInput.getTime()));
060            if (limit > 0) {
061                q.setMaxResults(limit);
062            }
063
064           cjBeans = q.getResultList();
065        }
066        catch (IllegalStateException e) {
067            throw new JPAExecutorException(ErrorCode.E0601, e.getMessage(), e);
068        }
069        return cjBeans;
070    }
071
072    @Override
073    public String getName() {
074        return "CoordJobsToBeMaterializedJPAExecutor";
075    }
076
077    /**
078     * @return the dateInput
079     */
080    public Date getDateInput() {
081        return dateInput;
082    }
083
084    /**
085     * @param dateInput the dateInput to set
086     */
087    public void setDateInput(Date dateInput) {
088        this.dateInput = dateInput;
089    }
090
091    /**
092     * @return the limit
093     */
094    public int getLimit() {
095        return limit;
096    }
097
098    /**
099     * @param limit the limit to set
100     */
101    public void setLimit(int limit) {
102        this.limit = limit;
103    }
104}