/*
* 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.commons.compiler.jdk;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.StandardLocation;
import javax.tools.JavaFileObject.Kind;
public class JavaFileManagerClassLoader extends ClassLoader {
private final JavaFileManager javaFileManager;
public JavaFileManagerClassLoader(JavaFileManager javaFileManager) {
this.javaFileManager = javaFileManager;
}
public JavaFileManagerClassLoader(JavaFileManager javaFileManager, ClassLoader parentClassLoader) {
super(parentClassLoader);
this.javaFileManager = javaFileManager;
}
@Override
protected Class<?> findClass(String className) throws ClassNotFoundException {
byte[] ba;
try {
JavaFileObject classFile = this.javaFileManager.getJavaFileForInput(
StandardLocation.CLASS_OUTPUT,
className,
Kind.CLASS
);
if (classFile == null) throw new ClassNotFoundException(className);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
{
InputStream is = classFile.openInputStream();
try {
byte[] buffer = new byte[8192];
for (;;) {
int count = is.read(buffer);
if (count == -1) break;
baos.write(buffer, 0, count);
}
} finally {
try { is.close(); } catch (Exception e) { }
}
}
ba = baos.toByteArray();
} catch (IOException ioe) {
throw new ClassNotFoundException(className, ioe);
}
return this.defineClass(className, ba, 0, ba.length);
}
}