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.sql.Timestamp; 021 import java.util.List; 022 023 import javax.persistence.EntityManager; 024 import javax.persistence.Query; 025 026 import org.apache.oozie.ErrorCode; 027 028 /** 029 * Load the list of completed BundleJob for purge ready. 030 */ 031 public class BundleJobsGetForPurgeJPAExecutor 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 BundleJobsGetForPurgeJPAExecutor(long olderThanDays, int limit) { 039 this(olderThanDays, 0, limit); 040 } 041 042 public BundleJobsGetForPurgeJPAExecutor(long olderThanDays, int offset, int limit) { 043 this.olderThanDays = olderThanDays; 044 this.offset = offset; 045 this.limit = limit; 046 } 047 048 /* (non-Javadoc) 049 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 050 */ 051 @Override 052 public String getName() { 053 return "BundleJobsGetForPurgeJPAExecutor"; 054 } 055 056 /* (non-Javadoc) 057 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 058 */ 059 @Override 060 @SuppressWarnings("unchecked") 061 public List<String> execute(EntityManager em) throws JPAExecutorException { 062 List<String> bundleJobs = null; 063 try { 064 Timestamp lastModTm = new Timestamp(System.currentTimeMillis() - (olderThanDays * DAY_IN_MS)); 065 Query jobQ = em.createNamedQuery("GET_COMPLETED_BUNDLE_JOBS_OLDER_THAN"); 066 jobQ.setParameter("lastModTime", lastModTm); 067 jobQ.setMaxResults(limit); 068 jobQ.setFirstResult(offset); 069 bundleJobs = jobQ.getResultList(); 070 } 071 catch (Exception e) { 072 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 073 } 074 return bundleJobs; 075 } 076 077 }