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 019package org.apache.oozie.executor.jpa; 020 021import javax.persistence.EntityManager; 022import javax.persistence.Query; 023 024import org.apache.oozie.ErrorCode; 025import org.apache.oozie.util.ParamChecker; 026 027/** 028 * 029 * Retrieve the name of user submitting workflow 030 */ 031public class WorkflowJobGetForUserJPAExecutor implements JPAExecutor<String> { 032 033 private String wfJobId = null; 034 035 public WorkflowJobGetForUserJPAExecutor(String wfJobId) { 036 ParamChecker.notNull(wfJobId, "wfJobId"); 037 this.wfJobId = wfJobId; 038 } 039 040 /* 041 * (non-Javadoc) 042 * 043 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 044 */ 045 @Override 046 public String getName() { 047 return "WorkflowJobGetForUserJPAExecutor"; 048 } 049 050 /* 051 * (non-Javadoc) 052 * 053 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence. 054 * EntityManager) 055 */ 056 @Override 057 public String execute(EntityManager em) throws JPAExecutorException { 058 try { 059 Query q = em.createNamedQuery("GET_WORKFLOW_FOR_USER"); 060 q.setParameter("id", wfJobId); 061 String user = (String) q.getSingleResult(); 062 return user; 063 } 064 catch (Exception e) { 065 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 066 } 067 } 068}