--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/dancres/blitz/remote/debug/TimingInvocationHandler.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,48 @@
+package org.dancres.blitz.remote.debug;
+
+import java.lang.reflect.Method;
+
+import net.jini.jeri.BasicInvocationHandler;
+import net.jini.jeri.ObjectEndpoint;
+
+import net.jini.core.constraint.MethodConstraints;
+
+/**
+   <p><code>TimingInvocationHandler</code>, dispatches all remote
+   invocations as normal whilst reporting the time taken to execute the call.
+   This can be used to locate "bottlenecks" in remote service configurations.
+   </p>
+
+   <p>NOTE: Using this handler in combination with clients which stipulate
+   verification when preparing proxies is doomed to failure because there
+   isn't currently a suitable <code>TrustVerifier</code>.  You could, of
+   course, adopt the brute force approach of putting this code in all
+   client classpaths.....</p>
+
+   @todo Code up TrustVerifier for this InvocationHandler
+ */
+public class TimingInvocationHandler extends BasicInvocationHandler {
+    public TimingInvocationHandler(ObjectEndpoint anEndpoint,
+                                   MethodConstraints aServerConstraints) {
+        super(anEndpoint, aServerConstraints);
+    }
+
+    public TimingInvocationHandler(BasicInvocationHandler aHandler,
+                                   MethodConstraints aClientConstraints) {
+        super(aHandler, aClientConstraints);
+    }
+
+    public Object invoke(Object aProxy, Method aMethod, Object[] anArgs)
+        throws Throwable {
+        long myStart = System.currentTimeMillis();
+
+        Object myResult = super.invoke(aProxy, aMethod, anArgs);
+
+        long myEnd = System.currentTimeMillis();
+
+        System.err.println("Method: " + aMethod + ": " + (myEnd - myStart) +
+                           " ms (" + myStart + ")");
+
+        return myResult;
+    }
+}