| /* |
| * Copyright (C) 2006-2007 the original author or authors. |
| * |
| * Licensed 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.codehaus.groovy.tools.shell.util; |
| |
| import java.security.Permission; |
| |
| /** |
| * Custom security manager to {@link System#exit} (and related) from being used. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class NoExitSecurityManager |
| extends SecurityManager |
| { |
| private final SecurityManager parent; |
| |
| public NoExitSecurityManager(final SecurityManager parent) { |
| assert parent != null; |
| |
| this.parent = parent; |
| } |
| |
| public NoExitSecurityManager() { |
| this(System.getSecurityManager()); |
| } |
| |
| public void checkPermission(final Permission perm) { |
| if (parent != null) { |
| parent.checkPermission(perm); |
| } |
| } |
| |
| /** |
| * Always throws {@link SecurityException}. |
| */ |
| public void checkExit(final int code) { |
| throw new SecurityException("Use of System.exit() if forbidden!"); |
| } |
| |
| /* |
| public void checkPermission(final Permission perm) { |
| assert perm != null; |
| |
| if (perm.getName().equals("exitVM")) { |
| System.out.println("exitVM"); |
| } |
| } |
| */ |
| } |