Wed, 27 Apr 2016 15:32:20 -0700
Added tag jdk8u102-b05 for changeset 1f512419ae33
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package javax.activation; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.security.*; |
aoqi@0 | 29 | import java.net.*; |
aoqi@0 | 30 | import java.io.*; |
aoqi@0 | 31 | import java.util.*; |
aoqi@0 | 32 | |
aoqi@0 | 33 | /** |
aoqi@0 | 34 | * Security related methods that only work on J2SE 1.2 and newer. |
aoqi@0 | 35 | * |
aoqi@0 | 36 | * @since 1.6 |
aoqi@0 | 37 | */ |
aoqi@0 | 38 | class SecuritySupport { |
aoqi@0 | 39 | |
aoqi@0 | 40 | private SecuritySupport() { |
aoqi@0 | 41 | // private constructor, can't create an instance |
aoqi@0 | 42 | } |
aoqi@0 | 43 | |
aoqi@0 | 44 | public static ClassLoader getContextClassLoader() { |
aoqi@0 | 45 | return (ClassLoader) |
aoqi@0 | 46 | AccessController.doPrivileged(new PrivilegedAction() { |
aoqi@0 | 47 | public Object run() { |
aoqi@0 | 48 | ClassLoader cl = null; |
aoqi@0 | 49 | try { |
aoqi@0 | 50 | cl = Thread.currentThread().getContextClassLoader(); |
aoqi@0 | 51 | } catch (SecurityException ex) { } |
aoqi@0 | 52 | return cl; |
aoqi@0 | 53 | } |
aoqi@0 | 54 | }); |
aoqi@0 | 55 | } |
aoqi@0 | 56 | |
aoqi@0 | 57 | public static InputStream getResourceAsStream(final Class c, |
aoqi@0 | 58 | final String name) throws IOException { |
aoqi@0 | 59 | try { |
aoqi@0 | 60 | return (InputStream) |
aoqi@0 | 61 | AccessController.doPrivileged(new PrivilegedExceptionAction() { |
aoqi@0 | 62 | public Object run() throws IOException { |
aoqi@0 | 63 | return c.getResourceAsStream(name); |
aoqi@0 | 64 | } |
aoqi@0 | 65 | }); |
aoqi@0 | 66 | } catch (PrivilegedActionException e) { |
aoqi@0 | 67 | throw (IOException)e.getException(); |
aoqi@0 | 68 | } |
aoqi@0 | 69 | } |
aoqi@0 | 70 | |
aoqi@0 | 71 | public static URL[] getResources(final ClassLoader cl, final String name) { |
aoqi@0 | 72 | return (URL[]) |
aoqi@0 | 73 | AccessController.doPrivileged(new PrivilegedAction() { |
aoqi@0 | 74 | public Object run() { |
aoqi@0 | 75 | URL[] ret = null; |
aoqi@0 | 76 | try { |
aoqi@0 | 77 | List v = new ArrayList(); |
aoqi@0 | 78 | Enumeration e = cl.getResources(name); |
aoqi@0 | 79 | while (e != null && e.hasMoreElements()) { |
aoqi@0 | 80 | URL url = (URL)e.nextElement(); |
aoqi@0 | 81 | if (url != null) |
aoqi@0 | 82 | v.add(url); |
aoqi@0 | 83 | } |
aoqi@0 | 84 | if (v.size() > 0) { |
aoqi@0 | 85 | ret = new URL[v.size()]; |
aoqi@0 | 86 | ret = (URL[])v.toArray(ret); |
aoqi@0 | 87 | } |
aoqi@0 | 88 | } catch (IOException ioex) { |
aoqi@0 | 89 | } catch (SecurityException ex) { } |
aoqi@0 | 90 | return ret; |
aoqi@0 | 91 | } |
aoqi@0 | 92 | }); |
aoqi@0 | 93 | } |
aoqi@0 | 94 | |
aoqi@0 | 95 | public static URL[] getSystemResources(final String name) { |
aoqi@0 | 96 | return (URL[]) |
aoqi@0 | 97 | AccessController.doPrivileged(new PrivilegedAction() { |
aoqi@0 | 98 | public Object run() { |
aoqi@0 | 99 | URL[] ret = null; |
aoqi@0 | 100 | try { |
aoqi@0 | 101 | List v = new ArrayList(); |
aoqi@0 | 102 | Enumeration e = ClassLoader.getSystemResources(name); |
aoqi@0 | 103 | while (e != null && e.hasMoreElements()) { |
aoqi@0 | 104 | URL url = (URL)e.nextElement(); |
aoqi@0 | 105 | if (url != null) |
aoqi@0 | 106 | v.add(url); |
aoqi@0 | 107 | } |
aoqi@0 | 108 | if (v.size() > 0) { |
aoqi@0 | 109 | ret = new URL[v.size()]; |
aoqi@0 | 110 | ret = (URL[])v.toArray(ret); |
aoqi@0 | 111 | } |
aoqi@0 | 112 | } catch (IOException ioex) { |
aoqi@0 | 113 | } catch (SecurityException ex) { } |
aoqi@0 | 114 | return ret; |
aoqi@0 | 115 | } |
aoqi@0 | 116 | }); |
aoqi@0 | 117 | } |
aoqi@0 | 118 | |
aoqi@0 | 119 | public static InputStream openStream(final URL url) throws IOException { |
aoqi@0 | 120 | try { |
aoqi@0 | 121 | return (InputStream) |
aoqi@0 | 122 | AccessController.doPrivileged(new PrivilegedExceptionAction() { |
aoqi@0 | 123 | public Object run() throws IOException { |
aoqi@0 | 124 | return url.openStream(); |
aoqi@0 | 125 | } |
aoqi@0 | 126 | }); |
aoqi@0 | 127 | } catch (PrivilegedActionException e) { |
aoqi@0 | 128 | throw (IOException)e.getException(); |
aoqi@0 | 129 | } |
aoqi@0 | 130 | } |
aoqi@0 | 131 | } |