| /* |
| * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.activation; |
| |
| import java.security.*; |
| import java.net.*; |
| import java.io.*; |
| import java.util.*; |
| |
| /** |
| * Security related methods that only work on J2SE 1.2 and newer. |
| * |
| * @since 1.6 |
| */ |
| class SecuritySupport { |
| |
| private SecuritySupport() { |
| // private constructor, can't create an instance |
| } |
| |
| public static ClassLoader getContextClassLoader() { |
| return (ClassLoader) |
| AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| ClassLoader cl = null; |
| try { |
| cl = Thread.currentThread().getContextClassLoader(); |
| } catch (SecurityException ex) { } |
| return cl; |
| } |
| }); |
| } |
| |
| public static InputStream getResourceAsStream(final Class c, |
| final String name) throws IOException { |
| try { |
| return (InputStream) |
| AccessController.doPrivileged(new PrivilegedExceptionAction() { |
| public Object run() throws IOException { |
| return c.getResourceAsStream(name); |
| } |
| }); |
| } catch (PrivilegedActionException e) { |
| throw (IOException)e.getException(); |
| } |
| } |
| |
| public static URL[] getResources(final ClassLoader cl, final String name) { |
| return (URL[]) |
| AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| URL[] ret = null; |
| try { |
| List v = new ArrayList(); |
| Enumeration e = cl.getResources(name); |
| while (e != null && e.hasMoreElements()) { |
| URL url = (URL)e.nextElement(); |
| if (url != null) |
| v.add(url); |
| } |
| if (v.size() > 0) { |
| ret = new URL[v.size()]; |
| ret = (URL[])v.toArray(ret); |
| } |
| } catch (IOException ioex) { |
| } catch (SecurityException ex) { } |
| return ret; |
| } |
| }); |
| } |
| |
| public static URL[] getSystemResources(final String name) { |
| return (URL[]) |
| AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| URL[] ret = null; |
| try { |
| List v = new ArrayList(); |
| Enumeration e = ClassLoader.getSystemResources(name); |
| while (e != null && e.hasMoreElements()) { |
| URL url = (URL)e.nextElement(); |
| if (url != null) |
| v.add(url); |
| } |
| if (v.size() > 0) { |
| ret = new URL[v.size()]; |
| ret = (URL[])v.toArray(ret); |
| } |
| } catch (IOException ioex) { |
| } catch (SecurityException ex) { } |
| return ret; |
| } |
| }); |
| } |
| |
| public static InputStream openStream(final URL url) throws IOException { |
| try { |
| return (InputStream) |
| AccessController.doPrivileged(new PrivilegedExceptionAction() { |
| public Object run() throws IOException { |
| return url.openStream(); |
| } |
| }); |
| } catch (PrivilegedActionException e) { |
| throw (IOException)e.getException(); |
| } |
| } |
| } |