/*
* Copyright 2003-2010 the original author or authors.
*
* Licensed 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.vmplugin.v4;
import org.codehaus.groovy.ast.*;
import org.codehaus.groovy.vmplugin.VMPlugin;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Constructor;
/**
* java 4 based functions
* @author Jochen Theodorou
*
*/
public class Java4 implements VMPlugin {
private static Class[] EMPTY_CLASS_ARRAY = new Class[0];
public void setAdditionalClassInformation(ClassNode c) {
return;
}
public Class[] getPluginDefaultGroovyMethods() {
return EMPTY_CLASS_ARRAY;
}
public Class[] getPluginStaticGroovyMethods() {
return EMPTY_CLASS_ARRAY;
}
public void configureAnnotation(AnnotationNode an) {
// do nothing
}
public void configureClassNode(CompileUnit compileUnit, ClassNode classNode) {
Class clazz = classNode.getTypeClass();
Field[] fields = clazz.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
classNode.addField(fields[i].getName(), fields[i].getModifiers(), classNode, null);
}
Method[] methods = clazz.getDeclaredMethods();
for (int i = 0; i < methods.length; i++) {
Method m = methods[i];
MethodNode mn = new MethodNode(m.getName(), m.getModifiers(), ClassHelper.make(m.getReturnType()), createParameters(m.getParameterTypes()), ClassHelper.make(m.getExceptionTypes()), null);
classNode.addMethod(mn);
}
Constructor[] constructors = clazz.getDeclaredConstructors();
for (int i = 0; i < constructors.length; i++) {
Constructor ctor = constructors[i];
classNode.addConstructor(ctor.getModifiers(), createParameters(ctor.getParameterTypes()), ClassHelper.make(ctor.getExceptionTypes()), null);
}
Class sc = clazz.getSuperclass();
if (sc != null) classNode.setUnresolvedSuperClass(getPrimaryClassNode(compileUnit,sc));
buildInterfaceTypes(compileUnit,classNode,clazz);
}
private ClassNode getPrimaryClassNode(CompileUnit compileUnit,Class clazz) {
// there might be a new super class from the compile unit,
// we want to use this instead of simply referencing the old
// class
ClassNode result = null;
if (compileUnit!=null) {
result = compileUnit.getClass(clazz.getName());
}
if (result==null) result = ClassHelper.make(clazz);
return result;
}
private void buildInterfaceTypes(CompileUnit compileUnit, ClassNode classNode, Class c) {
Class[] interfaces = c.getInterfaces();
ClassNode[] ret = new ClassNode[interfaces.length];
for (int i=0;i<interfaces.length;i++){
ret[i] = getPrimaryClassNode(compileUnit, interfaces[i]);
}
classNode.setInterfaces(ret);
}
private Parameter[] createParameters(Class[] types) {
Parameter[] parameters = Parameter.EMPTY_ARRAY;
int size = types.length;
if (size > 0) {
parameters = new Parameter[size];
for (int i = 0; i < size; i++) {
parameters[i] = createParameter(types[i], i);
}
}
return parameters;
}
private Parameter createParameter(Class parameterType, int idx) {
return new Parameter(ClassHelper.make(parameterType), "param" + idx);
}
}