/*****************************************************************************
* *
* This file is part of the BeanShell Java Scripting distribution. *
* Documentation and updates may be found at http://www.beanshell.org/ *
* *
* Sun Public License Notice: *
* *
* The contents of this file are subject to the Sun Public License Version *
* 1.0 (the "License"); you may not use this file except in compliance with *
* the License. A copy of the License is available at http://www.sun.com *
* *
* The Original Code is BeanShell. The Initial Developer of the Original *
* Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright *
* (C) 2000. All Rights Reserved. *
* *
* GNU Public License Notice: *
* *
* Alternatively, the contents of this file may be used under the terms of *
* the GNU Lesser General Public License (the "LGPL"), in which case the *
* provisions of LGPL are applicable instead of those above. If you wish to *
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* *
* Patrick Niemeyer (pat@pat.net) *
* Author of Learning Java, O'Reilly & Associates *
* http://www.pat.net/~pat/ *
* *
*****************************************************************************/
package org.gjt.sp.jedit.bsh.classpath;
import java.util.*;
import org.gjt.sp.jedit.bsh.BshClassManager;
import org.gjt.sp.jedit.bsh.classpath.BshClassPath.ClassSource;
/**
A classloader which can load one or more classes from specified sources.
Because the classes are loaded via a single classloader they change as a
group and any versioning cross dependencies can be managed.
*/
public class DiscreteFilesClassLoader extends BshClassLoader
{
/**
Map of class sources which also implies our coverage space.
*/
ClassSourceMap map;
public static class ClassSourceMap extends HashMap
{
public void put( String name, ClassSource source ) {
super.put( name, source );
}
public ClassSource get( String name ) {
return (ClassSource)super.get( name );
}
}
public DiscreteFilesClassLoader(
BshClassManager classManager, ClassSourceMap map )
{
super( classManager );
this.map = map;
}
/**
*/
public Class findClass( String name ) throws ClassNotFoundException
{
// Load it if it's one of our classes
ClassSource source = map.get( name );
if ( source != null )
{
byte [] code = source.getCode( name );
return defineClass( name, code, 0, code.length );
} else
// Let superclass BshClassLoader (URLClassLoader) findClass try
// to find the class...
return super.findClass( name );
}
public String toString() {
return super.toString() + "for files: "+map;
}
}