tantaman · July 27, 2012 00:40 · gumpenaajayvarma · Aug 23, 2017 · incredibleliu · Mar 15, 2019
diff --git a/index.html b/index.html
 <!doctype html>
 <html>
 <head>
 <!-- include Faye -->
 	<script type="text/javascript" src="scripts/faye-browser.js"></script>
 </head>
 <body>
 	<script type="text/javascript">
 // Connect to our Java CometD server
 		var client = new Faye.Client('http://localhost:8080/bayeux');

 // Subscribe for the /data channel
 		client.subscribe('/data', function(msg) {
 // log the data we got
 			console.log(msg);
 		});

 		client.publish('/data', {hello: "from myself?"});
 	</script>
 </body>
 </html>
diff --git a/instructions.txt b/instructions.txt
 Jetty:
 1. Download Jetty
 http://download.eclipse.org/jetty/
 2. Extract to some location via winrar or tar -zxf 


 Cometd:
 1. Download the latest Cometd (2.4.3 as of this writing)
 http://download.cometd.org/?C=M;O=A
 2. extract

 slf4j:
 1. download
 2. extract


 Creating the Eclipse Project:
 1. Create a new project
 2. Add all jetty-8/lib jars as dependencies (may not need all..)
 3. Add the following cometd libs:
 	cometd/cometd-java/cometd-java-server/target/*.jar
 	cometd/cometd-java/cometd-websocket-jetty/target/*.jar
 	cometd/cometd-java/bayeux-apit/target/*.jar
 	cometd/cometd-java/cometd-java-common/*.jar
 4. Add slf4j
 	slf4j/slf4j-api-1.6.6.jar
 	slf4j/slf4j-simple-1.6.6.jar
diff --git a/Main.java b/Main.java
 package com.tantaman.cometd.embed.example;

 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;

 import org.cometd.bayeux.server.BayeuxServer;
 import org.cometd.bayeux.server.ConfigurableServerChannel;
 import org.cometd.bayeux.server.ServerChannel;
 import org.cometd.server.CometdServlet;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.servlet.ServletContextHandler;
 import org.eclipse.jetty.servlet.ServletHolder;

 import sun.misc.BASE64Encoder;

 public class Main {
 	private static final ScheduledExecutorService exec = Executors.newScheduledThreadPool(1);
 	public static void main(String [] args) throws Exception {

 // Configure Jetty
 		Server server = new Server(8080);
 		ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
                context.setContextPath("/");
                server.setHandler(context);
        
 // Configure Cometd
               CometdServlet servlet = new CometdServlet();
               context.addServlet(new ServletHolder(servlet), "/bayeux");
 // Start Jetty
 		server.start();
 		
 		
 // Create a channel for our Java server to publish on
 		BayeuxServer bayeux = servlet.getBayeux();
 		String channelName = "/data";
 		bayeux.createIfAbsent(channelName, new ServerChannel.Initializer()
 		{
 		    public void configureChannel(ConfigurableServerChannel channel)
 		    {
 		        channel.setPersistent(true);
 		    }
 		});
 		final ServerChannel channel = bayeux.getChannel(channelName);
 		
 		

 // publish some random data
 		byte [] bytes = new byte[40];
 		for (int i = 0; i < bytes.length; ++i) {
 			bytes[i] = (byte)(Math.random() * 255);
 		}
 		
 		BASE64Encoder base64Encoder = new sun.misc.BASE64Encoder();
 		final String data = base64Encoder.encode(bytes);
 		
 		final Map<String, String> firstData = new HashMap<>();
 		firstData.put("a", "b");
 		firstData.put("something", "val");
 		
 // Maps are converted to JavaScript objects
 		final Map<String, String> secondData = new HashMap<>();
 		secondData.put("base64data", data);
 		
 		
 		exec.scheduleAtFixedRate(new Runnable() {
 			@Override
 			public void run() {
 				if (Math.random() < 0.5) {
 					channel.publish(null, firstData, "1");
 				} else {
 					channel.publish(null, secondData , "2");
 				}
 			}
 		}, 1, 1, TimeUnit.SECONDS);
 		
 // Keep running until the server dies
 		server.join();
 	}
 }
	<!doctype html>
	<html>
	<head>
	<!-- include Faye -->
	<script type="text/javascript" src="scripts/faye-browser.js"></script>
	</head>
	<body>
	<script type="text/javascript">
	// Connect to our Java CometD server
	var client = new Faye.Client('http://localhost:8080/bayeux');

	// Subscribe for the /data channel
	client.subscribe('/data', function(msg) {
	// log the data we got
	console.log(msg);
	});

	client.publish('/data', {hello: "from myself?"});
	</script>
	</body>
	</html>
	Jetty:
	1. Download Jetty
	http://download.eclipse.org/jetty/
	2. Extract to some location via winrar or tar -zxf


	Cometd:
	1. Download the latest Cometd (2.4.3 as of this writing)
	http://download.cometd.org/?C=M;O=A
	2. extract

	slf4j:
	1. download
	2. extract


	Creating the Eclipse Project:
	1. Create a new project
	2. Add all jetty-8/lib jars as dependencies (may not need all..)
	3. Add the following cometd libs:
	cometd/cometd-java/cometd-java-server/target/*.jar
	cometd/cometd-java/cometd-websocket-jetty/target/*.jar
	cometd/cometd-java/bayeux-apit/target/*.jar
	cometd/cometd-java/cometd-java-common/*.jar
	4. Add slf4j
	slf4j/slf4j-api-1.6.6.jar
	slf4j/slf4j-simple-1.6.6.jar
	package com.tantaman.cometd.embed.example;

	import java.util.HashMap;
	import java.util.Map;
	import java.util.concurrent.Executors;
	import java.util.concurrent.ScheduledExecutorService;
	import java.util.concurrent.TimeUnit;

	import org.cometd.bayeux.server.BayeuxServer;
	import org.cometd.bayeux.server.ConfigurableServerChannel;
	import org.cometd.bayeux.server.ServerChannel;
	import org.cometd.server.CometdServlet;
	import org.eclipse.jetty.server.Server;
	import org.eclipse.jetty.servlet.ServletContextHandler;
	import org.eclipse.jetty.servlet.ServletHolder;

	import sun.misc.BASE64Encoder;

	public class Main {
	private static final ScheduledExecutorService exec = Executors.newScheduledThreadPool(1);
	public static void main(String [] args) throws Exception {

	// Configure Jetty
	Server server = new Server(8080);
	ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
	context.setContextPath("/");
	server.setHandler(context);

	// Configure Cometd
	CometdServlet servlet = new CometdServlet();
	context.addServlet(new ServletHolder(servlet), "/bayeux");
	// Start Jetty
	server.start();


	// Create a channel for our Java server to publish on
	BayeuxServer bayeux = servlet.getBayeux();
	String channelName = "/data";
	bayeux.createIfAbsent(channelName, new ServerChannel.Initializer()
	{
	public void configureChannel(ConfigurableServerChannel channel)
	{
	channel.setPersistent(true);
	}
	});
	final ServerChannel channel = bayeux.getChannel(channelName);



	// publish some random data
	byte [] bytes = new byte[40];
	for (int i = 0; i < bytes.length; ++i) {
	bytes[i] = (byte)(Math.random() * 255);
	}

	BASE64Encoder base64Encoder = new sun.misc.BASE64Encoder();
	final String data = base64Encoder.encode(bytes);

	final Map<String, String> firstData = new HashMap<>();
	firstData.put("a", "b");
	firstData.put("something", "val");

	// Maps are converted to JavaScript objects
	final Map<String, String> secondData = new HashMap<>();
	secondData.put("base64data", data);


	exec.scheduleAtFixedRate(new Runnable() {
	@Override
	public void run() {
	if (Math.random() < 0.5) {
	channel.publish(null, firstData, "1");
	} else {
	channel.publish(null, secondData , "2");
	}
	}
	}, 1, 1, TimeUnit.SECONDS);

	// Keep running until the server dies
	server.join();
	}
	}