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
019package org.apache.oozie.executor.jpa;
020
021import javax.persistence.EntityManager;
022import javax.persistence.Query;
023
024import org.apache.oozie.ErrorCode;
025import org.apache.oozie.util.ParamChecker;
026
027/**
028 * Load the number of pending actions for a coordinator job.
029 */
030public class CoordActionsPendingFalseCountGetJPAExecutor implements JPAExecutor<Integer> {
031
032    private String coordJobId = null;
033
034    public CoordActionsPendingFalseCountGetJPAExecutor(String coordJobId) {
035        ParamChecker.notNull(coordJobId, "coordJobId");
036        this.coordJobId = coordJobId;
037    }
038
039    @Override
040    public String getName() {
041        return "CoordActionsPendingFalseCountGetJPAExecutor";
042    }
043
044    @Override
045    public Integer execute(EntityManager em) throws JPAExecutorException {
046        try {
047            Query q = em.createNamedQuery("GET_COORD_ACTIONS_PENDING_FALSE_COUNT");
048
049            q.setParameter("jobId", coordJobId);
050            Long count = (Long) q.getSingleResult();
051            return Integer.valueOf(count.intValue());
052        }
053        catch (Exception e) {
054            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
055        }
056    }
057
058}