| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pig.backend.hadoop.executionengine.mapReduceLayer; |
| |
| import java.security.Permission; |
| |
| public class RunJarSecurityManager extends SecurityManager{ |
| private boolean exitInvoked = false; |
| private int exitCode; |
| private SecurityManager securityManager = null; |
| private boolean internal = true; |
| |
| public RunJarSecurityManager() { |
| // install only once |
| if(securityManager == null) { |
| securityManager = System.getSecurityManager(); |
| System.setSecurityManager(this); |
| } |
| } |
| |
| @Override |
| public void checkPermission(Permission perm) { |
| if (securityManager != null) { |
| // check everything with the original SecurityManager |
| securityManager.checkPermission(perm); |
| } |
| } |
| |
| public void retire() { |
| System.setSecurityManager(securityManager); |
| } |
| |
| @Override |
| public void checkExit(int status) throws SecurityException { |
| // We need internal because RunJar intercepts all the exceptions and then itself returns -1 |
| // So it also intercepts our SecurityException, to avoid this we only take the first System.exit, the real source |
| if(internal) { |
| exitInvoked = true; |
| exitCode = status; |
| internal = false; |
| } |
| throw new SecurityException("Intercepted System.exit(" + status + ")"); |
| } |
| |
| public boolean getExitInvoked() { |
| return exitInvoked; |
| } |
| |
| public int getExitCode() { |
| return exitCode; |
| } |
| |
| } |