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.util.ArrayList;
021import java.util.List;
022
023import javax.persistence.EntityManager;
024import javax.persistence.Query;
025
026import org.apache.oozie.CoordinatorActionBean;
027import org.apache.oozie.ErrorCode;
028import org.apache.oozie.util.ParamChecker;
029
030/**
031 * Load coordinator actions for a coordinator job.
032 */
033public class CoordJobGetActionsJPAExecutor implements JPAExecutor<Integer> {
034
035    private String coordJobId = null;
036
037    public CoordJobGetActionsJPAExecutor(String coordJobId) {
038        ParamChecker.notNull(coordJobId, "coordJobId");
039        this.coordJobId = coordJobId;
040    }
041
042    @Override
043    public String getName() {
044        return "CoordJobGetActionsJPAExecutor";
045    }
046
047    @Override
048    @SuppressWarnings("unchecked")
049    public Integer execute(EntityManager em) throws JPAExecutorException {
050        try {
051            Query q = em.createNamedQuery("GET_ACTIONS_FOR_COORD_JOB");
052            q.setParameter("jobId", coordJobId);
053            Long count = (Long) q.getSingleResult();
054            return Integer.valueOf(count.intValue());
055        }
056        catch (Exception e) {
057            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
058        }
059    }
060
061}