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/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The name "Apache Software Foundation" must not be used to endorse or
* promote products derived from this software without prior written
* permission. For written permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999-2002, Sun Microsystems,
* Inc., http://www.sun.com. For more information on the Apache Software
* Foundation, please see .
*/
package org.xml.sax.helpers;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
/**
* 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.
*
* Base class with security related methods that work on JDK 1.1.
*/
class SecuritySupport {
/*
* Make this of type Object so that the verifier won't try to
* prove its type, thus possibly trying to load the SecuritySupport12
* class.
*/
private static final Object securitySupport;
static {
SecuritySupport ss = null;
try {
Class c = Class.forName("java.security.AccessController");
// if that worked, we're on 1.2.
/*
* Unfortunately, we can't load the class using reflection
* because the class is package private. And the class has
* to be package private so the APIs aren't exposed to other
* code that could use them to circumvent security. Thus,
* we accept the risk that the direct reference might fail
* on some JDK 1.1 JVMs, even though we would never execute
* this code in such a case. Sigh...
*/
ss = new SecuritySupport12();
} catch (Exception ex) {
// ignore it
} finally {
if (ss == null)
ss = new SecuritySupport();
securitySupport = ss;
}
}
/**
* Return an appropriate instance of this class, depending on whether
* we're on a JDK 1.1 or J2SE 1.2 (or later) system.
*/
public static SecuritySupport getInstance() {
return (SecuritySupport)securitySupport;
}
public ClassLoader getContextClassLoader() {
return null;
}
public String getSystemProperty(String propName) {
return System.getProperty(propName);
}
public FileInputStream getFileInputStream(File file)
throws FileNotFoundException
{
return new FileInputStream(file);
}
public InputStream getResourceAsStream(ClassLoader cl, String name) {
InputStream ris;
if (cl == null) {
ris = ClassLoader.getSystemResourceAsStream(name);
} else {
ris = cl.getResourceAsStream(name);
}
return ris;
}
}
