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    package org.apache.oozie.executor.jpa;
019    
020    import java.util.ArrayList;
021    import java.util.List;
022    
023    import javax.persistence.EntityManager;
024    import javax.persistence.Query;
025    
026    import org.apache.oozie.CoordinatorActionBean;
027    import org.apache.oozie.ErrorCode;
028    import org.apache.oozie.util.ParamChecker;
029    
030    /**
031     * Load coordinator actions for a coordinator job.
032     */
033    public 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);
058            }
059        }
060    
061    }