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.action.hadoop; 016 017 import java.util.concurrent.Callable; 018 019 //TODO this class goes away when doing 20.100+ only 020 021 //TODO this class is for testing, but is here to allow selective compilation 022 public class DoAs implements Callable<Void> { 023 private String user; 024 private Callable<Void> callable; 025 026 public void setUser(String user) { 027 this.user = user; 028 } 029 030 protected String getUser() { 031 return user; 032 } 033 034 protected Callable<Void> getCallable() { 035 return callable; 036 } 037 038 public void setCallable(Callable<Void> callable) { 039 this.callable = callable; 040 } 041 042 public Void call() throws Exception { 043 callable.call(); 044 return null; 045 } 046 047 public static void call(String user, Callable<Void> callable) throws Exception { 048 Class klass; 049 try { 050 klass = Class.forName("org.apache.oozie.action.hadoop.KerberosDoAs"); 051 } 052 catch (ClassNotFoundException ex) { 053 klass = DoAs.class; 054 } 055 DoAs doAs = (DoAs) klass.newInstance(); 056 doAs.setCallable(new Callable<Void>() { 057 @Override 058 public Void call() throws Exception { 059 PigMain.main(null); 060 return null; 061 } 062 }); 063 doAs.setUser(user); 064 doAs.setCallable(callable); 065 doAs.call(); 066 } 067 068 }