[jboss-dev-forums] [JBoss Remoting Development] - JBoss Remoting 3 HelloWorld Sample
Kylin Soong
do-not-reply at jboss.com
Tue Aug 20 04:31:59 EDT 2013
Kylin Soong [https://community.jboss.org/people/kylin] modified the document:
"JBoss Remoting 3 HelloWorld Sample"
To view the document, visit: https://community.jboss.org/docs/DOC-51182
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*What's the JBoss Remoting 3 HelloWorld Sample*
JBoss Remoting is wide used in JBoss Application Server, Remoting 3 is the next generation of JBoss Remoting, this article will provide a quick start sample for using JBoss Remoting 3.
More about JBoss Remoting 3 please refer to https://www.jboss.org/jbossremoting/remoting-3 https://www.jboss.org/jbossremoting/remoting-3
The HelloWorld Sample's architecture like below:
https://community.jboss.org/servlet/JiveServlet/showImage/21315/remoting3_sample.png https://community.jboss.org/servlet/JiveServlet/downloadImage/21315/remoting3_sample.png
* CharSequenceReceiver play a role as Server, it use JBoss Remoting 3, listen on localhost/30123, it will output every received char sequence.
* CharSequenceSender play a role as Client, it connect to Server, create a Remoting 3 Connection, use this connection it can send char sequence repeated
*Source Code*
package org.jboss.remoting3.sample;
import java.io.IOException;
import java.net.InetSocketAddress;
import org.jboss.remoting3.Channel;
import org.jboss.remoting3.Endpoint;
import org.jboss.remoting3.MessageInputStream;
import org.jboss.remoting3.OpenListener;
import org.jboss.remoting3.Remoting;
import org.jboss.remoting3.remote.RemoteConnectionProviderFactory;
import org.jboss.remoting3.security.SimpleServerAuthenticationProvider;
import org.jboss.remoting3.spi.NetworkServerProvider;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import org.xnio.Options;
import org.xnio.Sequence;
import org.xnio.channels.AcceptingChannel;
import org.xnio.channels.ConnectedStreamChannel;
public class CharSequenceReceiver {
private static final int THREAD_POOL_SIZE = 100;
private static final int BUFFER_SIZE = 8192;
private static byte[] buffer;
protected final Endpoint serverEndpoint;
private AcceptingChannel<? extends ConnectedStreamChannel> server;
public CharSequenceReceiver() throws IOException {
serverEndpoint = Remoting.createEndpoint("connection-test-server", OptionMap.create(Options.WORKER_TASK_CORE_THREADS, THREAD_POOL_SIZE, Options.WORKER_TASK_MAX_THREADS, THREAD_POOL_SIZE));
serverEndpoint.addConnectionProvider("remote", new RemoteConnectionProviderFactory(), OptionMap.create(Options.SSL_ENABLED, Boolean.FALSE));
final NetworkServerProvider networkServerProvider = serverEndpoint.getConnectionProviderInterface("remote", NetworkServerProvider.class);
SimpleServerAuthenticationProvider provider = new SimpleServerAuthenticationProvider();
provider.addUser("bob", "test", "pass".toCharArray());
server = networkServerProvider.createServer(new InetSocketAddress("localhost", 30123), OptionMap.create(Options.SASL_MECHANISMS, Sequence.of("CRAM-MD5")), provider, null);
System.out.println("Server Created, " + server.getLocalAddress());
serverEndpoint.registerService("test", new OpenListener(){
public void channelOpened(Channel channel) {
channel.receiveMessage(new Channel.Receiver(){
public void handleError(Channel channel, IOException error) {
}
public void handleEnd(Channel channel) {
// System.out.println(channel.getConnection().getRemoteEndpointName() + " ended");
}
public void handleMessage(Channel channel, MessageInputStream message) {
try {
channel.receiveMessage(this);
buffer = new byte[BUFFER_SIZE];
while (message.read(buffer) > -1);
System.out.println(" Receive: " + new String(buffer));
} catch (Exception e) {
e.printStackTrace();
} finally {
IoUtils.safeClose(message);
}
}
});
}
public void registrationTerminated() {
}}, OptionMap.EMPTY);
}
public static void main(String[] args) throws IOException {
new CharSequenceReceiver();
}
}
package org.jboss.remoting3.sample;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import org.jboss.remoting3.Channel;
import org.jboss.remoting3.Connection;
import org.jboss.remoting3.Endpoint;
import org.jboss.remoting3.MessageOutputStream;
import org.jboss.remoting3.Registration;
import org.jboss.remoting3.Remoting;
import org.jboss.remoting3.remote.RemoteConnectionProviderFactory;
import org.xnio.IoFuture;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import org.xnio.Options;
public class CharSequenceSender {
private static final Integer THREAD_POOL_SIZE = 100;
protected final Endpoint clientEndpoint;
protected final Registration clientReg;
protected final Connection conn;
public CharSequenceSender() throws IOException {
clientEndpoint = Remoting.createEndpoint("connection-test-client", OptionMap.create(Options.WORKER_TASK_CORE_THREADS, THREAD_POOL_SIZE, Options.WORKER_TASK_MAX_THREADS, THREAD_POOL_SIZE));
clientReg = clientEndpoint.addConnectionProvider("remote", new RemoteConnectionProviderFactory(), OptionMap.create(Options.SSL_ENABLED, Boolean.FALSE));
conn = clientEndpoint.connect("remote", new InetSocketAddress("localhost", 0), new InetSocketAddress("localhost", 30123), OptionMap.EMPTY, "bob", "test", "pass".toCharArray()).get();
System.out.println("Connection created, " + conn.getEndpoint().getName());
send();
}
private void send() {
System.out.println("enter 'quit' or 'exit' exit the ChatDemo");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
while (true) {
try {
String line = in.readLine().toLowerCase();
if (line.startsWith("quit") || line.startsWith("exit")) {
break;
}
MessageOutputStream stream = null;
Channel channel = null;
try {
final IoFuture<Channel> future = conn.openChannel("test", OptionMap.EMPTY);
channel = future.get();
stream = channel.writeMessage();
stream.write(new String(line.getBytes(), "UTF-8").getBytes());
} catch (Exception e) {
throw new RuntimeException("send char sequence error", e);
} finally {
stream.close();
IoUtils.safeClose(channel);
}
} catch (Exception e) {
throw new RuntimeException("send char sequence error", e);
}
}
IoUtils.safeClose(clientReg);
IoUtils.safeClose(clientEndpoint);
}
public static void main(String[] args) throws IOException {
new CharSequenceSender();
}
}
Source code in github https://github.com/kylinsoong/JVM/tree/master/remoting/testhttp:// https://github.com/kylinsoong
*Run and Test*
* Clone Source code from github, or download Source code from attachment, use maven build:
mvn clean install dependency:copy-dependencies
* Start CharSequenceReceiver
java -cp target/dependency/*:target/jboss-remoting-test.jar org.jboss.remoting3.sample.CharSequenceReceiver
* Start CharSequenceSender
java -cp target/dependency/*:target/jboss-remoting-test.jar org.jboss.remoting3.sample.CharSequenceSender
* Type char sequence in client side as below:
https://community.jboss.org/servlet/JiveServlet/showImage/21316/VM-remoting-test-client.png https://community.jboss.org/servlet/JiveServlet/downloadImage/21316/VM-remoting-test-client.png
* Check From Server side 3 char sequence be received by server
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