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The javax.rmi and javax.rmi.CORBA classes
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/*
* Copyright (c) 1995, 2004, 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.
*/
/*
* Licensed Materials - Property of IBM
* RMI-IIOP v1.0
* Copyright IBM Corp. 1998 1999 All Rights Reserved
*
*/
package org.jboss.com.sun.corba.se.impl.util;
import java.net.MalformedURLException;
import java.rmi.server.RMIClassLoader;
import java.security.AccessController;
import org.jboss.com.sun.corba.se.impl.orbutil.GetPropertyAction;
/**
* Utility methods for doing various method calls which are used by multiple classes
*/
public class JDKBridge
{
/**
* Get local codebase System property (java.rmi.server.codebase). May be null or a space separated array of URLS.
*/
public static String getLocalCodebase()
{
return localCodebase;
}
/**
* Return true if the system property "java.rmi.server.useCodebaseOnly" is set, false otherwise.
*/
public static boolean useCodebaseOnly()
{
return useCodebaseOnly;
}
/**
* Returns a class instance for the specified class.
*
* @param className
* the name of the class
* @param remoteCodebase
* a space-separated array of urls at which the class might be found. May be null.
* @param loader
* a ClassLoader who may be used to load the class if all other methods fail.
* @return the Class object representing the loaded class.
* @exception throws ClassNotFoundException if class cannot be loaded.
*/
public static Class loadClass(String className, String remoteCodebase, ClassLoader loader)
throws ClassNotFoundException
{
if (loader == null)
{
return loadClassM(className, remoteCodebase, useCodebaseOnly);
}
else
{
try
{
return loadClassM(className, remoteCodebase, useCodebaseOnly);
}
catch (ClassNotFoundException e)
{
return loader.loadClass(className);
}
}
}
/**
* Returns a class instance for the specified class.
*
* @param className
* the name of the class
* @param remoteCodebase
* a space-separated array of urls at which the class might be found. May be null.
* @return the Class object representing the loaded class.
* @exception throws ClassNotFoundException if class cannot be loaded.
*/
public static Class loadClass(String className, String remoteCodebase) throws ClassNotFoundException
{
return loadClass(className, remoteCodebase, null);
}
/**
* Returns a class instance for the specified class.
*
* @param className
* the name of the class
* @return the Class object representing the loaded class.
* @exception throws ClassNotFoundException if class cannot be loaded.
*/
public static Class loadClass(String className) throws ClassNotFoundException
{
return loadClass(className, null, null);
}
private static final String LOCAL_CODEBASE_KEY = "java.rmi.server.codebase";
private static final String USE_CODEBASE_ONLY_KEY = "java.rmi.server.useCodebaseOnly";
private static String localCodebase = null;
private static boolean useCodebaseOnly;
static
{
setCodebaseProperties();
}
public static final void main(String[] args)
{
System.out.println("1.2 VM");
/*
* // If on 1.2, use a policy with all permissions. System.setSecurityManager (new
* javax.rmi.download.SecurityManager()); String targetClass = "[[Lrmic.Typedef;";
* System.out.println("localCodebase = "+localCodebase); System.out.println("Trying to load "+targetClass); try
* { Class clz = loadClass(targetClass,null,localCodebase); System.out.println("Loaded: "+clz); } catch
* (ClassNotFoundException e) { System.out.println("Caught "+e); }
*/
}
/**
* Set the codebase and useCodebaseOnly properties. This is public only for test code.
*/
public static synchronized void setCodebaseProperties()
{
String prop = AccessController.doPrivileged(new GetPropertyAction(LOCAL_CODEBASE_KEY));
if (prop != null && prop.trim().length() > 0)
{
localCodebase = prop;
}
prop = AccessController.doPrivileged(new GetPropertyAction(USE_CODEBASE_ONLY_KEY));
if (prop != null && prop.trim().length() > 0)
{
useCodebaseOnly = Boolean.valueOf(prop).booleanValue();
}
}
/**
* Set the default code base. This method is here only for test code.
*/
public static synchronized void setLocalCodebase(String codebase)
{
localCodebase = codebase;
}
private static Class loadClassM(String className, String remoteCodebase, boolean useCodebaseOnly)
throws ClassNotFoundException
{
try
{
return JDKClassLoader.loadClass(null, className);
}
catch (ClassNotFoundException e)
{
}
try
{
if (!useCodebaseOnly && remoteCodebase != null)
{
return RMIClassLoader.loadClass(remoteCodebase, className);
}
else
{
return RMIClassLoader.loadClass((String) null, className);
}
}
catch (MalformedURLException e)
{
className = className + ": " + e.toString();
}
throw new ClassNotFoundException(className);
}
}