org.codehaus.groovy.runtime.callsite.GroovySunClassLoader 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.codehaus.groovy.runtime.callsite;
import org.codehaus.groovy.reflection.SunClassLoader;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import java.io.IOException;
import java.io.InputStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
public class GroovySunClassLoader extends SunClassLoader {
public static final SunClassLoader sunVM;
static {
sunVM = AccessController.doPrivileged(new PrivilegedAction() {
public SunClassLoader run() {
try {
if (SunClassLoader.sunVM != null) {
return new GroovySunClassLoader();
}
}
catch (Throwable t) {//
}
return null;
}
});
}
protected GroovySunClassLoader () throws Throwable {
super();
loadAbstract ();
loadFromRes("org.codehaus.groovy.runtime.callsite.MetaClassSite");
loadFromRes("org.codehaus.groovy.runtime.callsite.MetaMethodSite");
loadFromRes("org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite");
loadFromRes("org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite");
loadFromRes("org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite");
}
private void loadAbstract() throws IOException {
final InputStream asStream = GroovySunClassLoader.class.getClass().getClassLoader().getResourceAsStream(resName("org.codehaus.groovy.runtime.callsite.AbstractCallSite"));
ClassReader reader = new ClassReader(asStream);
final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
final ClassVisitor cv = new ClassVisitor(4, cw) {
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
super.visit(version, access, name, signature, "sun/reflect/GroovyMagic", interfaces);
}
};
reader.accept(cv, ClassWriter.COMPUTE_MAXS);
asStream.close();
define(cw.toByteArray(), "org.codehaus.groovy.runtime.callsite.AbstractCallSite");
}
}