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.sla;
019
020import java.sql.Timestamp;
021import java.util.List;
022
023import javax.persistence.EntityManager;
024import javax.persistence.Query;
025
026import org.apache.oozie.ErrorCode;
027import org.apache.oozie.executor.jpa.JPAExecutor;
028import org.apache.oozie.executor.jpa.JPAExecutorException;
029import org.apache.oozie.sla.SLASummaryBean;
030
031/**
032 * Load the list of SLASummaryBean when Oozie restarts and return the list.
033 */
034public class SLASummaryGetRecordsOnRestartJPAExecutor implements JPAExecutor<List<SLASummaryBean>> {
035
036    private int days;
037    public SLASummaryGetRecordsOnRestartJPAExecutor (int days) {
038        this.days = days;
039    }
040
041    @Override
042    public String getName() {
043        return "SLASummaryGetRecordsOnRestartJPAExecutor";
044    }
045
046    @SuppressWarnings("unchecked")
047        @Override
048    public List<SLASummaryBean> execute(EntityManager em) throws JPAExecutorException {
049        List<SLASummaryBean> ssBean;
050        try {
051            Query q = em.createNamedQuery("GET_SLA_SUMMARY_RECORDS_RESTART");
052            Timestamp ts = new Timestamp(System.currentTimeMillis() - days * 24 * 60 * 60 * 1000);
053            q.setParameter("lastModifiedTime", ts);
054            ssBean = q.getResultList();
055            return ssBean;
056        }
057        catch (Exception e) {
058            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
059        }
060    }
061
062}