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 java.sql.Timestamp; 021import java.util.List; 022 023import javax.persistence.EntityManager; 024import javax.persistence.Query; 025 026import org.apache.oozie.ErrorCode; 027 028/** 029 * Load the list of completed CoordinatorJob for purge ready. 030 */ 031public class CoordJobsGetForPurgeJPAExecutor implements JPAExecutor<List<String>> { 032 033 private static final long DAY_IN_MS = 24 * 60 * 60 * 1000; 034 private long olderThanDays; 035 private int limit; 036 private int offset; 037 038 public CoordJobsGetForPurgeJPAExecutor(long olderThanDays, int limit) { 039 this(olderThanDays, 0, limit); 040 } 041 042 public CoordJobsGetForPurgeJPAExecutor(long olderThanDays, int offset, int limit) { 043 this.olderThanDays = olderThanDays; 044 this.offset = offset; 045 this.limit = limit; 046 } 047 048 @Override 049 public String getName() { 050 return "CoordJobsGetForPurgeJPAExecutor"; 051 } 052 053 @Override 054 @SuppressWarnings("unchecked") 055 public List<String> execute(EntityManager em) throws JPAExecutorException { 056 List<String> coordJobs = null; 057 try { 058 Timestamp lastModTm = new Timestamp(System.currentTimeMillis() - (olderThanDays * DAY_IN_MS)); 059 Query jobQ = em.createNamedQuery("GET_COMPLETED_COORD_JOBS_WITH_NO_PARENT_OLDER_THAN_STATUS"); 060 jobQ.setParameter("lastModTime", lastModTm); 061 jobQ.setMaxResults(limit); 062 jobQ.setFirstResult(offset); 063 coordJobs = jobQ.getResultList(); 064 } 065 catch (Exception e) { 066 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 067 } 068 return coordJobs; 069 } 070 071}