activation-1.1.jar
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javax.activation:activation:1.1
com
javax
activation
UnsupportedDataTypeException.java
MimetypesFileTypeMap.java
DataContentHandler.java
package.html
DataHandler.java
CommandInfo.java
MimeTypeParseException.java
FileDataSource.java
DataContentHandlerFactory.java
SecuritySupport.java
CommandObject.java
DataSource.java
MimeTypeParameterList.java
URLDataSource.java
MimeType.java
CommandMap.java
MailcapCommandMap.java
ActivationDataFlavor.java
FileTypeMap.java
SecuritySupport.java
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类结构
/* * The contents of this file are subject to the terms * of the Common Development and Distribution License * (the "License"). You may not use this file except * in compliance with the License. * * You can obtain a copy of the license at * glassfish/bootstrap/legal/CDDLv1.0.txt or * https://glassfish.dev.java.net/public/CDDLv1.0.html. * See the License for the specific language governing * permissions and limitations under the License. * * When distributing Covered Code, include this CDDL * HEADER in each file and include the License file at * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable, * add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your * own identifying information: Portions Copyright [yyyy] * [name of copyright owner] */ /* * @(#)SecuritySupport.java 1.3 05/11/16 * * Copyright 2002-2005 Sun Microsystems, Inc. All Rights Reserved. */ 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. */ 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
(); } } }
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