org.apache.commons.javaflow.bytecode.BytecodeClassLoader Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.javaflow.bytecode;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Opcodes;
public class BytecodeClassLoader extends ClassLoader {
class NameClassAdapter extends ClassVisitor {
private String className;
public NameClassAdapter() {
super(Opcodes.ASM5);
}
public void visit( int version, int access, String name, String signature, String superName, String[] interfaces ) {
className = name;
}
public String getName() {
return className;
}
}
public Class loadClass( final byte[] bytecode ) {
final NameClassAdapter nameClassAdapter = new NameClassAdapter();
new ClassReader(bytecode).accept(nameClassAdapter, 0);
final String name = nameClassAdapter.getName().replace('/', '.');
// System.out.println("loading class " + name);
final Class clazz = defineClass(name, bytecode, 0, bytecode.length);
return clazz;
}
}