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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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package org.jboss.remoting.samples.callback.statistics;
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import java.util.HashMap;
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import org.jboss.remoting.Client;
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import org.jboss.remoting.InvokerLocator;
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import org.jboss.remoting.callback.Callback;
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import org.jboss.remoting.callback.CallbackPoller;
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import org.jboss.remoting.callback.HandleCallbackException;
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import org.jboss.remoting.callback.InvokerCallbackHandler;
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* Sample client that demonstrates CallbackPoller tuning statistics.
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* @author <a href="mailto:ron.sigal@jboss.com">Ron Sigal</a>
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* @author <a href="mailto:telrod@e2technologies.net">Tom Elrod</a>
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public class CallbackClient
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// Default locator values
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private static String transport = "socket";
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private static String host = "localhost";
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private static int port = 5400;
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* Registers callback listener and asks CallbackPoller to print statistics.
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public void getPolledCallbacks(String locatorURI) throws Throwable
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System.out.println("Calling remoting server with locator uri of: " + locatorURI);
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InvokerLocator locator = new InvokerLocator(locatorURI);
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Client client = new Client(locator);
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// Registter callback handler and tell CallbackPoller to report statistics.
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CallbackHandler callbackHandler = new CallbackHandler();
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HashMap metadata = new HashMap();
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metadata.put(CallbackPoller.REPORT_STATISTICS, "true");
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client.addListener(callbackHandler, metadata);
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// Wait for callbacks to received, processed, and acknowledged.
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// remove callback handler from server
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client.removeListener(callbackHandler);
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* Can pass transport and port to be used as parameters.
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public static void main(String[] args)
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if(args != null && args.length == 2)
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port = Integer.parseInt(args[1]);
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String locatorURI = transport + "://" + host + ":" + port;
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CallbackClient callbackClient = new CallbackClient();
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callbackClient.getPolledCallbacks(locatorURI);
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* Our implementation of the InvokerCallbackHandler. Simply
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* prints out the callback object's message upon receiving it.
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public class CallbackHandler implements InvokerCallbackHandler
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public void handleCallback(Callback callback) throws HandleCallbackException
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// Slow down callback handling so callbacks build up in CallbackPoller.
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catch (InterruptedException e) {}
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System.out.println("Received push callback.");
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System.out.println("Received callback value of: " + callback.getCallbackObject());
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System.out.println("Received callback server invoker of: " + callback.getServerLocator());
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