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