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/*
* $Id: SecuritySupport.java,v 1.6 2010-11-01 04:36:11 joehw Exp $
* %W% %E%
*/
package mf.javax.xml.transform;
import java.security.*;
import java.net.*;
import java.io.*;
import java.util.*;
/**
* This class is duplicated for each JAXP subpackage so keep it in sync.
* It is package private and therefore is not exposed as part of the JAXP
* API.
*
* Security related methods that only work on J2SE 1.2 and newer.
*/
class SecuritySupport {
ClassLoader getContextClassLoader() throws SecurityException{
return (ClassLoader)
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
ClassLoader cl = null;
//try {
cl = Thread.currentThread().getContextClassLoader();
//} catch (SecurityException ex) { }
if (cl == null)
cl = ClassLoader.getSystemClassLoader();
return cl;
}
});
}
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 = Object.class.getResourceAsStream(name);
} else {
ris = cl.getResourceAsStream(name);
}
return ris;
}
});
}
boolean doesFileExist(final File f) {
return ((Boolean)
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
return new Boolean(f.exists());
}
})).booleanValue();
}
}