bcv-vf/src/org/codehaus/janino/ClassLoaderIClassLoader.java

96 lines
3.8 KiB
Java

/*
* Janino - An embedded Java[TM] compiler
*
* Copyright (c) 2001-2010, Arno Unkrig
* 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 name of the author may not be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*/
package org.codehaus.janino;
/** An {@link IClassLoader} that loads {@link IClass}es through a reflection {@link ClassLoader}. */
@SuppressWarnings("rawtypes") public
class ClassLoaderIClassLoader extends IClassLoader {
private static final boolean DEBUG = false;
/** @param classLoader The delegate that loads the classes. */
public
ClassLoaderIClassLoader(ClassLoader classLoader) {
super(
null // optionalParentIClassLoader
);
if (classLoader == null) throw new NullPointerException();
this.classLoader = classLoader;
super.postConstruct();
}
/**
* Equivalent to
* <pre>
* ClassLoaderIClassLoader(Thread.currentThread().getContextClassLoader())
* </pre>
*/
public
ClassLoaderIClassLoader() { this(Thread.currentThread().getContextClassLoader()); }
/** @return The delegate {@link ClassLoader} */
public ClassLoader
getClassLoader() { return this.classLoader; }
@Override protected IClass
findIClass(String descriptor) throws ClassNotFoundException {
Class clazz;
try {
//
// See also [ 931385 ] Janino 2.0 throwing exception on arrays of java.io.File:
//
// "ClassLoader.loadClass()" and "Class.forName()" should be identical,
// but "ClassLoader.loadClass("[Ljava.lang.Object;")" throws a
// ClassNotFoundException under JDK 1.5.0 beta.
// Unclear whether this a beta version bug and SUN will fix this in the final
// release, but "Class.forName()" seems to work fine in all cases, so we
// use that.
//
// clazz = this.classLoader.loadClass(Descriptor.toClassName(descriptor));
clazz = Class.forName(Descriptor.toClassName(descriptor), false, this.classLoader);
} catch (ClassNotFoundException e) {
if (e.getException() == null) {
return null;
} else
{
throw e;
}
}
if (ClassLoaderIClassLoader.DEBUG) System.out.println("clazz = " + clazz);
IClass result = new ReflectionIClass(clazz, this);
this.defineIClass(result);
return result;
}
private final ClassLoader classLoader;
}