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.List;
021    
022    import javax.persistence.EntityManager;
023    import javax.persistence.Query;
024    
025    import org.apache.oozie.CoordinatorActionBean;
026    import org.apache.oozie.ErrorCode;
027    import org.apache.oozie.util.ParamChecker;
028    
029    /**
030     * Load the CoordinatorJob into a Bean and return it.
031     */
032    public class CoordJobGetActionByActionNumberJPAExecutor implements JPAExecutor<CoordinatorActionBean> {
033    
034        private String coordJobId = null;
035        private final int actionNumber;
036    
037        public CoordJobGetActionByActionNumberJPAExecutor(String coordJobId, int actionNumber) {
038            ParamChecker.notNull(coordJobId, "coordJobId");
039            this.coordJobId = coordJobId;
040            this.actionNumber = actionNumber;
041        }
042    
043        /* (non-Javadoc)
044         * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
045         */
046        @Override
047        public String getName() {
048            return "CoordJobGetActionByActionNumberJPAExecutor";
049        }
050    
051        /* (non-Javadoc)
052         * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
053         */
054        @Override
055        @SuppressWarnings("unchecked")
056        public CoordinatorActionBean execute(EntityManager em) throws JPAExecutorException {
057            try {
058                CoordinatorActionBean caBean = null;
059                Query q = em.createNamedQuery("GET_COORD_ACTION_FOR_COORD_JOB_BY_ACTION_NUMBER");
060                q.setParameter("jobId", coordJobId);
061                q.setParameter("actionNumber", actionNumber);
062    
063                List<CoordinatorActionBean> actionList = q.getResultList();
064                if (actionList.size() > 0) {
065                    caBean = actionList.get(0);
066                }
067                return caBean;
068            }
069            catch (Exception e) {
070                throw new JPAExecutorException(ErrorCode.E0603, e);
071            }
072        }
073    }