- /*
- * Copyright 2002-2004 The Apache Software Foundation.
- *
- * 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.
- */
- /*
- * $Id: SecuritySupport12.java,v 1.1.1.1 2004/02/26 11:39:40 vk112360 Exp $
- */
-
- package com.sun.org.apache.xalan.internal.xsltc.runtime;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.InputStream;
-
- import java.security.AccessController;
- import java.security.PrivilegedAction;
- import java.security.PrivilegedActionException;
- import java.security.PrivilegedExceptionAction;
-
- import java.util.Properties;
-
- /**
- * This class is duplicated for each Xalan-Java subpackage so keep it in sync.
- * It is package private and therefore is not exposed as part of the Xalan-Java
- * API.
- *
- * Security related methods that only work on J2SE 1.2 and newer.
- */
- class SecuritySupport12 extends SecuritySupport {
-
- ClassLoader getContextClassLoader() {
- return (ClassLoader)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- ClassLoader cl = null;
- try {
- cl = Thread.currentThread().getContextClassLoader();
- } catch (SecurityException ex) { }
- return cl;
- }
- });
- }
-
- ClassLoader getSystemClassLoader() {
- return (ClassLoader)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- ClassLoader cl = null;
- try {
- cl = ClassLoader.getSystemClassLoader();
- } catch (SecurityException ex) {}
- return cl;
- }
- });
- }
-
- ClassLoader getParentClassLoader(final ClassLoader cl) {
- return (ClassLoader)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- ClassLoader parent = null;
- try {
- parent = cl.getParent();
- } catch (SecurityException ex) {}
-
- // eliminate loops in case of the boot
- // ClassLoader returning itself as a parent
- return (parent == cl) ? null : parent;
- }
- });
- }
-
- String getSystemProperty(final String propName) {
- return (String)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- return System.getProperty(propName);
- }
- });
- }
-
- FileInputStream getFileInputStream(final File file)
- throws FileNotFoundException
- {
- try {
- return (FileInputStream)
- AccessController.doPrivileged(new PrivilegedExceptionAction() {
- public Object run() throws FileNotFoundException {
- return new FileInputStream(file);
- }
- });
- } catch (PrivilegedActionException e) {
- throw (FileNotFoundException)e.getException();
- }
- }
-
- InputStream getResourceAsStream(final ClassLoader cl,
- final String name)
- {
- return (InputStream)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- InputStream ris;
- if (cl == null) {
- ris = ClassLoader.getSystemResourceAsStream(name);
- } else {
- ris = cl.getResourceAsStream(name);
- }
- return ris;
- }
- });
- }
-
- boolean getFileExists(final File f) {
- return ((Boolean)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- return new Boolean(f.exists());
- }
- })).booleanValue();
- }
-
- long getLastModified(final File f) {
- return ((Long)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- return new Long(f.lastModified());
- }
- })).longValue();
- }
-
- }