001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.executor.jpa; 016 017 import java.sql.Timestamp; 018 import java.util.ArrayList; 019 import java.util.List; 020 021 import javax.persistence.EntityManager; 022 import javax.persistence.Query; 023 024 import org.apache.oozie.ErrorCode; 025 import org.apache.oozie.util.ParamChecker; 026 027 public class CoordActionsGetReadyGroupbyJobIDJPAExecutor implements JPAExecutor<List<String>>{ 028 private long checkAgeSecs = 0; 029 030 public CoordActionsGetReadyGroupbyJobIDJPAExecutor(final long checkAgeSecs) { 031 ParamChecker.notNull(checkAgeSecs, "checkAgeSecs"); 032 this.checkAgeSecs = checkAgeSecs; 033 } 034 035 /* (non-Javadoc) 036 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 037 */ 038 @Override 039 public String getName() { 040 return "CoordActionsGetReadyGroupbyJobIDJPAExecutor"; 041 } 042 043 /* (non-Javadoc) 044 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 045 */ 046 @Override 047 public List<String> execute(EntityManager em) throws JPAExecutorException { 048 List<String> jobids = new ArrayList<String>(); 049 try { 050 Query q = em.createNamedQuery("GET_READY_ACTIONS_GROUP_BY_JOBID"); 051 Timestamp ts = new Timestamp(System.currentTimeMillis() - checkAgeSecs * 1000); 052 q.setParameter(1, ts); 053 List<Object[]> list = q.getResultList(); 054 055 for (Object[] arr : list) { 056 if (arr != null && arr[0] != null) { 057 jobids.add((String) arr[0]); 058 } 059 } 060 061 return jobids; 062 } 063 catch (IllegalStateException e) { 064 throw new JPAExecutorException(ErrorCode.E0601, e.getMessage(), e); 065 } 066 } 067 068 }