/**
* Visit every class/interface this proxy should implement, and generate the appropriate bytecode
* for delegation if available.
*
* @param clazz an class for which to generate bytecode
*/
private void visitClass(final Class clazz) {
Method[] methods = clazz.getDeclaredMethods();
for (Method method : methods) {
Class<?>[] exceptionTypes = method.getExceptionTypes();
String[] exceptions = new String[exceptionTypes.length];
for (int i = 0; i < exceptions.length; i++) {
exceptions[i] = BytecodeHelper.getClassInternalName(exceptionTypes[i]);
}
// for each method defined in the class, generate the appropriate delegation bytecode
visitMethod(
method.getModifiers(),
method.getName(),
BytecodeHelper.getMethodDescriptor(method.getReturnType(), method.getParameterTypes()),
null,
exceptions);
}
Constructor[] constructors = clazz.getDeclaredConstructors();
for (Constructor method : constructors) {
Class<?>[] exceptionTypes = method.getExceptionTypes();
String[] exceptions = new String[exceptionTypes.length];
for (int i = 0; i < exceptions.length; i++) {
exceptions[i] = BytecodeHelper.getClassInternalName(exceptionTypes[i]);
}
// for each method defined in the class, generate the appropriate delegation bytecode
visitMethod(
method.getModifiers(),
"<init>",
BytecodeHelper.getMethodDescriptor(Void.TYPE, method.getParameterTypes()),
null,
exceptions);
}
for (Class intf : clazz.getInterfaces()) {
visitClass(intf);
}
Class superclass = clazz.getSuperclass();
if (superclass != null) visitClass(superclass);
// Ultimately, methods can be available in the closure map which are not defined by the
// superclass
// nor the interfaces
for (Map.Entry<String, Boolean> entry : delegatedClosures.entrySet()) {
Boolean visited = entry.getValue();
if (!visited) {
String name = entry.getKey();
if (!"*".equals(name)) {
// generate a new method
visitMethod(ACC_PUBLIC, name, "([Ljava/lang/Object;)Ljava/lang/Object;", null, null);
}
}
}
}
