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.sla;
019    
020    import java.util.List;
021    
022    import javax.persistence.EntityManager;
023    import javax.persistence.Query;
024    
025    import org.apache.oozie.ErrorCode;
026    import org.apache.oozie.executor.jpa.JPAExecutor;
027    import org.apache.oozie.executor.jpa.JPAExecutorException;
028    import org.apache.oozie.sla.SLASummaryBean;
029    
030    /**
031     * Load the list of SLASummaryBean (for dashboard) and return the list.
032     */
033    public class SLASummaryGetJPAExecutor implements JPAExecutor<SLASummaryBean> {
034    
035        private String id = null;
036    
037        public SLASummaryGetJPAExecutor(String id) {
038            this.id = id;
039        }
040    
041        @Override
042        public String getName() {
043            return "SLASummaryGetJPAExecutor";
044        }
045    
046        @SuppressWarnings("unchecked")
047        @Override
048        public SLASummaryBean execute(EntityManager em) throws JPAExecutorException {
049            List<SLASummaryBean> ssBeans;
050            Query q;
051            try {
052                q = em.createNamedQuery("GET_SLA_SUMMARY");
053                q.setParameter("id", id);
054                ssBeans = q.getResultList();
055            }
056            catch (Exception e) {
057                throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
058            }
059            SLASummaryBean slaSummaryBean = null;
060            if (ssBeans != null && ssBeans.size() > 0) {
061                slaSummaryBean = ssBeans.get(0);
062            }
063            return slaSummaryBean;
064        }
065    
066    }