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 javax.persistence.EntityManager; 021 import javax.persistence.Query; 022 023 import org.apache.oozie.ErrorCode; 024 import org.apache.oozie.util.ParamChecker; 025 026 /** 027 * 028 * Retrieve the name of user submitting workflow 029 */ 030 public class WorkflowJobGetForUserJPAExecutor implements JPAExecutor<String> { 031 032 private String wfJobId = null; 033 034 public WorkflowJobGetForUserJPAExecutor(String wfJobId) { 035 ParamChecker.notNull(wfJobId, "wfJobId"); 036 this.wfJobId = wfJobId; 037 } 038 039 /* 040 * (non-Javadoc) 041 * 042 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 043 */ 044 @Override 045 public String getName() { 046 return "WorkflowJobGetForUserJPAExecutor"; 047 } 048 049 /* 050 * (non-Javadoc) 051 * 052 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence. 053 * EntityManager) 054 */ 055 @Override 056 public String execute(EntityManager em) throws JPAExecutorException { 057 try { 058 Query q = em.createNamedQuery("GET_WORKFLOW_FOR_USER"); 059 q.setParameter("id", wfJobId); 060 String user = (String) q.getSingleResult(); 061 return user; 062 } 063 catch (Exception e) { 064 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 065 } 066 } 067 }