/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.remoting.samples.bisocket;
import java.lang.reflect.Field;
import java.net.InetAddress;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.jboss.logging.XLevel;
import org.jboss.remoting.Client;
import org.jboss.remoting.InvokerLocator;
import org.jboss.remoting.callback.Callback;
import org.jboss.remoting.callback.HandleCallbackException;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.transport.Connector;
import org.jboss.remoting.transport.bisocket.Bisocket;
import org.jboss.remoting.transport.bisocket.BisocketServerInvoker;
import org.jboss.remoting.transport.socket.SocketServerInvoker;
/**
* This class and org.jboss.remoting.samples.bisocket.BisocketSampleServer
* demonstrate how to how to make an invocation and how to set up push callbacks
* over the bisocket transport.
*
* The reason for the existance of the bisocket transport, which is derived from the
* socket transport, is to make it possible to do push callbacks to a client which
* is unable to create a ServerSocket, either due to security restrictions or due
* to the fact that it is behind a firewall.
*
* @author <a href="ron.sigal@jboss.com">Ron Sigal</a>
* @version $Revision: 1.1 $
* <p>
* Copyright May 1, 2008
* </p>
*/
public class BisocketSampleClient
{
private static Logger log = Logger.getLogger(BisocketSampleClient.class);
public void makeInvocation(String locatorURI) throws Throwable
{
// Create client.
InvokerLocator clientLocator = new InvokerLocator(locatorURI);
Client client = new Client(clientLocator);
client.connect();
log.info("client is connected");
// Test connection.
if ("abc".equals(client.invoke("abc")))
log.info("connection is good");
else
log.info("Should have gotten \"abc\" in reply");
// Set up push callbacks. Tell the Connector created by Client.addListener()
// that it is a callback Connector, which tells the BisocketServerInvoker
// not to create a ServerSocket.
HashMap metadata = new HashMap();
metadata.put(Bisocket.IS_CALLBACK_SERVER, "true");
TestCallbackHandler callbackHandler = new TestCallbackHandler();
client.addListener(callbackHandler, metadata);
// Use reflection to verify that the callback BisocketServerInvoker did not
// create a ServerSocket.
Set callbackConnectors = client.getCallbackConnectors(callbackHandler);
if (callbackConnectors.size() != 1)
{
log.info("There should be one callback Connector");
}
else
{
Connector callbackConnector = (Connector) callbackConnectors.iterator().next();
BisocketServerInvoker serverInvoker = (BisocketServerInvoker) callbackConnector.getServerInvoker();
Field field = SocketServerInvoker.class.getDeclaredField("serverSockets");
field.setAccessible(true);
List serverSockets = (List) field.get(serverInvoker);
log.info("number of ServerSockets held by callback BisocketServerInvoker: " + serverSockets.size());
}
// Request callback.
client.invoke("CALLBACK");
if (callbackHandler.getCounter() == 1)
log.info("received callback");
else
log.info("didn't receive callback");
client.removeListener(callbackHandler);
client.disconnect();
}
public static void main(String[] args)
{
// Configure logging.
Logger.getLogger("org.jboss.remoting").setLevel(XLevel.INFO);
Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO);
String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n";
PatternLayout layout = new PatternLayout(pattern);
ConsoleAppender consoleAppender = new ConsoleAppender(layout);
Logger.getRootLogger().addAppender(consoleAppender);
try
{
String host = InetAddress.getLocalHost().getHostName();
int port = BisocketSampleServer.port;
String locatorURI = "bisocket://" + host + ":" + port;
BisocketSampleClient client = new BisocketSampleClient();
client.makeInvocation(locatorURI);
}
catch(Throwable e)
{
e.printStackTrace();
}
}
/**
* An InvokerCallbackHandler is registered with the callback Connector, which
* passes push callbacks to it by way of the handleCallback() method.
* </p>
*/
static class TestCallbackHandler implements InvokerCallbackHandler
{
private int counter;
public void handleCallback(Callback callback) throws HandleCallbackException
{
counter++;
}
public int getCounter()
{
return counter;
}
}
}