Toromaki

Toromaki 1

package org.codesushi;

import java.lang.reflect.*;
import java.util.Arrays;

/**
* @author codesushi
*/
public class SushiDebugProxy implements InvocationHandler {

 private Object obj;

 public static Object newInstance(Object obj) {
  return Proxy.newProxyInstance(obj.getClass().getClassLoader(), obj.getClass().getInterfaces(), new SushiDebugProxy(obj));
 }

 private SushiDebugProxy(Object obj) {
  this.obj = obj;
 }

 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
  Object result;
  try {
   System.out.println("before method " + m.getName() + "(" + Arrays.asList(args) + ")");
   result = m.invoke(obj, args);

  } catch (InvocationTargetException e) {
   throw e.getTargetException();

  } catch (Exception e) {
   throw new RuntimeException("unexpected invocation exception: " + e.getMessage());

  } finally {
   System.out.println("after method " + m.getName() + "(" + Arrays.asList(args) + ")");
  }
  return result;
 }
}