I am trying to create a server using SSL but I keep getting the following error:
"Server aborted:javax.net.ssl.SSLException: No available certificate or key corresponds to the SSL cipher suites which are enabled."
I am not sure if I am creating the certificates correctly. Here is my code.
I am converting an old TCP Server to an SSL Server
// SSL Server
import java.net.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import javax.net.ServerSocketFactory;
import javax.net.ssl.SSLServerSocketFactory;
public class SSL_Server {
public static void main(String[] args) {
int port = 2018;
ServerSocketFactory ssocketFactory = SSLServerSocketFactory.getDefault();
ServerSocket ssocket = null;
System.out.println("SSL_Server started");
System.setProperty("javax.net.ssl.keyStore","mySrvKeystore");
System.setProperty("javax.net.ssl.keyStorePassword","123456");
final ExecutorService threadPool = Executors.newCachedThreadPool();
try {
ssocket = ssocketFactory.createServerSocket(port);
InetAddress myIP =InetAddress.getLocalHost();
System.out.println(myIP.getHostAddress());
while(true){
Socket aClient = ssocket.accept();
//create a new thread for every client
threadPool.submit(new SSL_ClientHandler(aClient));
}
}
catch(Exception e) {
System.err.println("Server aborted:" + e);
} finally {
try{
ssocket.close();
} catch (Exception e){
System.err.println("could not close connection properly" + e);
}
}
System.out.println("connection was closed successfully");
}
}
System.setProperty("javax.net.ssl. keyStore","mySrvKeystore"); System.setProperty("javax.net.ssl. keyStorePassword","123456");
ServerSocketFactory ssocketFactory = SSLServerSocketFactory.getDefault();
ServerSocket ssocket = null;
System.out.println("SSL_Server started");
You should set the properties that configure the default SSLContext (and thus the default SSLServerSocketFactory) before getting it, since it will configure it then.
System.setProperty("javax.net.ssl.keyStore","mySrvKeystore");
System.setProperty("javax.net.ssl.keyStorePassword","123456");
ServerSocketFactory ssocketFactory = SSLServerSocketFactory.getDefault();
ServerSocket ssocket = null;
System.out.println("SSL_Server started");
Related
I'm new to Netty and I try to write an echo server and client that uses mutual authentication. Unfortunately, it's not working, the client doesn't send its client certificate and the server disconnects as expected. Below an overview of what I've done so far and the client side code - that probably contains some bug or I missed something important. Thanks for going through all this!
That is what I have:
Netty version 4.1.0.CR1
Valid keystores, truststores and CRL for download on server
A complete implementation of echo server and client using JSSE directly (that is working as expected)
A working implementation of the echo server using Netty (it's working fine when used with the JSSE based client)
A client based on Netty that does not send a client certificate
Client code:
The channel handler:
package info.junius.tutorial.echo.netty.tls;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;
public class EchoClientHandler extends SimpleChannelInboundHandler<ByteBuf>
{
#Override
public void channelRead0(ChannelHandlerContext ctx, ByteBuf in)
{
System.out.println("CLIENT: Received echo from server:\n" + in.toString(CharsetUtil.UTF_8));
}
#Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
{
cause.printStackTrace();
ctx.close();
}
}
The channel initialiser:
package info.junius.tutorial.echo.netty.tls;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.handler.ssl.SslContext;
public class ClientChannelInitializer extends ChannelInitializer<Channel>
{
private final SslContext context;
private final String peerHost;
private final int peerPort;
public ClientChannelInitializer(SslContext context, String peerHost, int peerPort)
{
this.context = context;
this.peerHost = peerHost;
this.peerPort = peerPort;
}
#Override
protected void initChannel(Channel channel) throws Exception
{
// Add SSL handler first to encrypt and decrypt everything.
channel.pipeline().addLast(this.context.newHandler(channel.alloc(), this.peerHost, this.peerPort));
// and then business logic.
channel.pipeline().addLast(new EchoClientHandler());
}
}
The echo client:
package info.junius.tutorial.echo.netty.tls;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
public class EchoClient
{
private final String host;
private final int port;
public EchoClient(String host, int port)
{
super();
this.host = host;
this.port = port;
}
public static void main(String[] args) throws Exception
{
if (args.length != 2)
{
System.err.println("Usage: " + EchoClient.class.getSimpleName() + " <host> <port>");
}
else
{
// Security.addProvider(new BouncyCastleProvider());
String host = args[0];
int port = Integer.parseInt(args[1]);
new EchoClient(host, port).start();
}
}
public void start() throws Exception
{
TlsContextUtil tlsContextUtil = new TlsContextUtil();
ChannelInitializer<Channel> channelInitializer = new ClientChannelInitializer(tlsContextUtil.getClientContext(), this.host, this.port);
EventLoopGroup group = new NioEventLoopGroup();
try
{
Bootstrap b = new Bootstrap();
b.group(group).channel(NioSocketChannel.class).handler(channelInitializer);
Channel channel = b.connect(this.host, this.port).sync().channel();
ChannelFuture writeFuture = channel.writeAndFlush("Hello from netty client!\n");
// channel.closeFuture().sync();
writeFuture.sync();
}
finally
{
group.shutdownGracefully().sync();
}
}
}
And a utility class that returns an SslContext:
...
public SslContext getClientContext() throws IOException
{
SslContext sslContext = null;
try
{
// truststore
TrustManagerFactory tmf = TrustManagerFactory.getInstance("PKIX", "SunJSSE");
tmf.init(this.getKeystore(TRUSTSTORE));
// keystore holding client certificate
KeyManagerFactory kmf = KeyManagerFactory.getInstance("PKIX", "SunJSSE");
kmf.init(this.getKeystore(CLIENT_KEYSTORE), KEYSTORE_PW);
SslContextBuilder builder = SslContextBuilder.forClient().keyManager(kmf).trustManager(tmf).ciphers(PFS_CIPHERS);
// build context
sslContext = builder.build();
}
catch (NoSuchAlgorithmException
| NoSuchProviderException
| KeyStoreException
| IllegalStateException
| UnrecoverableKeyException e)
{
throw new IOException("Unable to create client TLS context", e);
}
return sslContext;
}
...
VM arguments:
-Djavax.net.debug=all -Djava.security.debug="certpath crl" -Dcom.sun.net.ssl.checkRevocation=true -Dcom.sun.security.enableCRLDP=true
I'm quite confident that my mistake must be in the Netty client code, because the system works fine when using JSSE only. Any help is highly appreciated!
Cheers,
Andy
OK, I've got it to work. It was actually my client code that was wrong (the code was based on the secure chat example that comes with Netty). So I changed it to the version used in the echo example:
EchoClientHandler:
#Override
public void channelActive(ChannelHandlerContext ctx)
{
// When notified that the channel is active send a message.
System.out.println("CLIENT: Sending request to server...");
ctx.writeAndFlush(Unpooled.copiedBuffer("Mein Schnitzel ist kaputt!\n", CharsetUtil.UTF_8));
}
and the EchoClient:
try
{
Bootstrap b = new Bootstrap();
b.group(group).channel(NioSocketChannel.class).handler(channelInitializer);
ChannelFuture f = b.connect(this.host, this.port).sync();
f.channel().closeFuture().sync();
}
finally
{
group.shutdownGracefully().sync();
}
The previous code just disconnected too early, so that the handshake never completed.
I want to write an UDP Netty Server/Client with SSL . I did it in the way similar to TCP Netty Server/Client which worked well. But I meet an exception:
javax.net.ssl.SSLException:Received close_notify during handskake,close channel...
My netty is 3.x , SSL configure works well . Here is some code of my Udp Server and Client. Server:
serverBootstrap = new ConnectionlessBootstrap(
new NioDatagramChannelFactory(Executors.newCachedThreadPool(),maxThreads));
serverBootstrap.setOption("receiveBufferSizePredictorFactory",
new FixedReceiveBufferSizePredictorFactory(8192));
ChannelPipelineFactory fac = null;
try {
ServiceDecoder serviceProcessor = (ServiceDecoder)Class.forName(serviceDecoderName).newInstance();
Class<? extends ChannelPipelineFactory> clazz = (Class<? extends ChannelPipelineFactory>) Class
.forName(msgFactoryName);
Constructor ctor = clazz.getConstructor(ChannelProcessor.class,
ChannelGroup.class, CounterGroup.class, CounterGroupExt.class, String.class,ServiceDecoder.class,
String.class, Integer.class, String.class, String.class, Boolean.class,Integer.class,Boolean.class,Boolean.class,Context.class);
logger.info("Using channel processor:{}", getChannelProcessor().getClass().getName());
fac = (ChannelPipelineFactory) ctor.newInstance(
getChannelProcessor(), allChannels, counterGroup, counterGroupExt, "udp", serviceProcessor,
messageHandlerName, maxMsgLength, topic, attr, filterEmptyMsg, maxConnections, isCompressed,enableSsl,context);
} catch (Exception e) {
logger.error(
"Simple Udp Source start error, fail to construct ChannelPipelineFactory with name {}, ex {}",
msgFactoryName, e);
stop();
throw new FlumeException(e.getMessage());
}
serverBootstrap.setPipelineFactory(fac);
try {
if (host == null) {
nettyChannel = serverBootstrap
.bind(new InetSocketAddress(port));
} else {
nettyChannel = serverBootstrap.bind(new InetSocketAddress(host,
port));
}
Pipeline in Server:
if(enableSsl) {
cp.addLast("ssl", sslInit());
}
if (processor != null) {
try {
Class<? extends SimpleChannelHandler> clazz = (Class<? extends SimpleChannelHandler>) Class
.forName(messageHandlerName);
Constructor<?> ctor = clazz.getConstructor(
ChannelProcessor.class, ServiceDecoder.class, ChannelGroup.class,
CounterGroup.class, CounterGroupExt.class, String.class, String.class,
Boolean.class, Integer.class, Integer.class, Boolean.class);
SimpleChannelHandler messageHandler = (SimpleChannelHandler) ctor
.newInstance(processor, serviceProcessor, allChannels,
counterGroup, counterGroupExt, topic, attr,
filterEmptyMsg, maxMsgLength, maxConnections, isCompressed);
cp.addLast("messageHandler", messageHandler);
} catch (Exception e) {
e.printStackTrace();
}
}
if (this.protocolType.equalsIgnoreCase(ConfigConstants.UDP_PROTOCOL)) {
cp.addLast("execution", executionHandler);
}
client:
private ConnectionlessBootstrap clientBootstrap;
clientBootstrap = new ConnectionlessBootstrap(
new NioDatagramChannelFactory(Executors.newCachedThreadPool()));
clientBootstrap.setPipelineFactory(new ChannelPipelineFactory() {
#Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("sslHandler", sslInit());
pipeline.addLast("orderHandler",new ExecutionHandler(
new OrderedMemoryAwareThreadPoolExecutor(cores * 2,
1024 * 1024, 1024 * 1024)));
return pipeline;
}
});
Two function to send message in the client:
public void sendMessage(byte[] data) {
ChannelBuffer buffer = ChannelBuffers.wrappedBuffer(data);
sendMessage(buffer);
}
public void sendMessage(ChannelBuffer buffer) {
Random random = new Random();
Channel channel = channelList.get(random.nextInt(channelList.size()));
if(!channel.isConnected()){
channel.close();
ChannelFuture cf = clientBootstrap
.connect(new InetSocketAddress(ip, port));
if(cf.awaitUninterruptibly(3000, TimeUnit.MILLISECONDS)){
channel = cf.getChannel();
}else {
channelList.remove(channel);
return;
}
}
ChannelFuture future = channel.write(buffer);
if(!future.awaitUninterruptibly(3, TimeUnit.SECONDS)){
logger.warn("send failed!{}",future.getCause());
}else {
sendCnt.incrementAndGet();
}
}
I suspect whether UDP Netty Server/Client support SSL. Any tips are appreciated.
UDP does not guarantee the order of packets, as opposed to TCP, since there is no session. Thus, during the SSL negotiation, there could be an issue, depending on the order of the UDP packets.
According to what I read, you might have a look to DTLS which suppose to add a sort of order control in UDP packets, but lot of SSL libraries do not support it.
Since Netty only implements TLS, it may not work with UDP.
I am trying to create a mule flow with a TCP inbound endpoint which is a TCP server that listens to a port. When a successful client connection is identified, before receiving any request from the client, I need to write a message into the socket (which lets the client know that I am listening), only after which the client sends me further requests. This is how I do it with a sample java program :
import java.net.*;
import java.io.*;
public class TCPServer
{
public static void main(String[] args) throws IOException
{
ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(4445);
}
catch (IOException e)
{
System.err.println("Could not listen on port: 4445.");
System.exit(1);
}
Socket clientSocket = null;
System.out.println ("Waiting for connection.....");
try {
clientSocket = serverSocket.accept();
}
catch (IOException e)
{
System.err.println("Accept failed.");
System.exit(1);
}
System.out.println ("Connection successful");
System.out.println ("Sending output message - .....");
//Sending a message to the client to indicate that the server is active
PrintStream pingStream = new PrintStream(clientSocket.getOutputStream());
pingStream.print("Server listening");
pingStream.flush();
//Now start listening for messages
System.out.println ("Waiting for incoming message - .....");
PrintWriter out = new PrintWriter(clientSocket.getOutputStream(),true);
BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
{
System.out.println ("Server: " + inputLine);
out.println(inputLine);
if (inputLine.equals("Bye."))
break;
}
out.close();
in.close();
clientSocket.close();
serverSocket.close();
}
}
I have tried to use Mule's TCP inbound endpoint as a server, but I am not able to see how I can identify a successful connection from the client, inorder to trigger the outbound message. The flow gets triggered only when a message is sent across from the client. Is there a way I can extend the functionality of the Mule TCP connector and have a listener which could do the above requirement?
Based on the answer provided, this is how I implemented this -
public class TCPMuleOut extends TcpMessageReceiver {
boolean InitConnection = false;
Socket clientSocket = null;
public TCPMuleOut(Connector connector, FlowConstruct flowConstruct,
InboundEndpoint endpoint) throws CreateException {
super(connector, flowConstruct, endpoint);
}
protected Work createWork(Socket socket) throws IOException {
return new MyTcpWorker(socket, this);
}
protected class MyTcpWorker extends TcpMessageReceiver.TcpWorker {
public MyTcpWorker(Socket socket, AbstractMessageReceiver receiver)
throws IOException {
super(socket, receiver);
// TODO Auto-generated constructor stub
}
#Override
protected Object getNextMessage(Object resource) throws Exception {
if (InitConnection == false) {
clientSocket = this.socket;
logger.debug("Sending logon message");
PrintStream pingStream = new PrintStream(
clientSocket.getOutputStream());
pingStream.print("Log on message");
pingStream.flush();
InitConnection = true;
}
long keepAliveTimeout = ((TcpConnector) connector)
.getKeepAliveTimeout();
Object readMsg = null;
try {
// Create a monitor if expiry was set
if (keepAliveTimeout > 0) {
((TcpConnector) connector).getKeepAliveMonitor()
.addExpirable(keepAliveTimeout,
TimeUnit.MILLISECONDS, this);
}
readMsg = protocol.read(dataIn);
// There was some action so we can clear the monitor
((TcpConnector) connector).getKeepAliveMonitor()
.removeExpirable(this);
if (dataIn.isStreaming()) {
}
return readMsg;
} catch (SocketTimeoutException e) {
((TcpConnector) connector).getKeepAliveMonitor()
.removeExpirable(this);
System.out.println("Socket timeout");
} finally {
if (readMsg == null) {
// Protocols can return a null object, which means we're
// done
// reading messages for now and can mark the stream for
// closing later.
// Also, exceptions can be thrown, in which case we're done
// reading.
dataIn.close();
InitConnection = false;
logger.debug("Client closed");
}
}
return null;
}
}
}
And the TCP connector is as below:
<tcp:connector name="TCP" doc:name="TCP connector"
clientSoTimeout="100000" receiveBacklog="0" receiveBufferSize="0"
sendBufferSize="0" serverSoTimeout="100000" socketSoLinger="0"
validateConnections="true" keepAlive="true">
<receiver-threading-profile
maxThreadsActive="5" maxThreadsIdle="5" />
<reconnect-forever />
<service-overrides messageReceiver="TCPMuleOut" />
<tcp:direct-protocol payloadOnly="true" />
</tcp:connector>
What you're trying to do is a little difficult to accomplish but not impossible. The messages are received by the org.mule.transport.tcp.TcpMessageReceiver class, and this class always consumes the data in the input stream to create the message that injects in the flow.
However, you could extend that receiver and instruct the TCP module to use yours by adding a service-overrides tag in your flow's tcp connector (documented here) and replacing the messageReceiver element.
In your extended receiver you should change the TcpWorker.getNextMessage method in order to send the ack message before read from the input stream.
HTH, Marcos.
I have solved the problem. You need to create an instance of SSLEngine and add it to the pipeline of handlers for each clinent request. I have done this by adding the handler in the channelConnected event and removing the ssl handler in the channel disconnected. This make sure for each channel connected it will be added new.
Below is the code of the handler. Is this the right approach for doing persistent socket connection with SSL support?
package server;
import static org.jboss.netty.buffer.ChannelBuffers.dynamicBuffer;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelHandler;
import org.jboss.netty.channel.group.ChannelGroup;
import org.jboss.netty.channel.group.DefaultChannelGroup;
import org.jboss.netty.handler.ssl.SslHandler;
import ssl.SslContextFactory;
import ssl.SslKeyStore;
public class ServerHandler extends SimpleChannelHandler {
private static final String ECHORES = "0057081082200000000000000400000000000000070612201399966400301";
#Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
System.out.println("Inside ServerHandler.messageReceived");
ChannelBuffer buffer = (ChannelBuffer) e.getMessage();
ChannelBuffer temp = dynamicBuffer();
temp.writeBytes(buffer);
if (temp.readableBytes() >= 4) {
byte messageLen[] = new byte[4];
temp.readBytes(messageLen);
int len = Integer.parseInt(new String(messageLen));
System.out.println("Length of the message is : " + len);
if (temp.readableBytes() >= len) {
byte[] message = new byte[len];
temp.readBytes(message);
System.out.println("Input message is : " + new String(message));
Channel channel = e.getChannel();
buffer = ChannelBuffers.copiedBuffer(ECHORES.getBytes());
ChannelFuture future = channel.write(buffer);
future.addListener(ChannelFutureListener.CLOSE);
}
}
}
#Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
e.getCause().printStackTrace();
Channel channel = e.getChannel();
channel.close();
}
#Override
public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
String file = "test.jks";
SSLContext sslCtx = SslContextFactory.getServerContext(new SslKeyStore(file));
final SSLEngine sslEngine =sslCtx.createSSLEngine();
sslEngine.setNeedClientAuth(false);
sslEngine.setUseClientMode(false);
final SslHandler sslHandler = new SslHandler(sslEngine);
ctx.getPipeline().addFirst("ssl", sslHandler);
ChannelFuture handshakeFuture = sslHandler.handshake();
handshakeFuture.addListener(new ChannelFutureListener() {
#Override
public void operationComplete(ChannelFuture future) throws Exception {
if (future.isSuccess()) {
System.out.println("SSL/TLS session established");
System.out.println("Your session is protected by "+ sslHandler.getEngine().
getSession().getCipherSuite() + " cipher suite.\n");
} else {
future.getChannel().close();
}
}
});
}
#Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("Inside ServerHandler.channelDisconnected");
ctx.getPipeline().remove("ssl");
}
}
I am getting the following exception while using netty with ssl. My first transaction and handshake goes fine. If I send a new message to teh server again I am getting this exception.
"javax.net.ssl.SSLException: SSLEngine is closing/closed"
What could be going wrong here. How to keep the esatablished TLS/SSL session? This error happens at org.jboss.netty.handler.ssl.SslHandler.handshake(SslHandler.java:358).
Intention is to keep the server running with a persistent TLS socket connection , so that clients can send messages.
-TK
Hi all please give some basic about ActiveMQ with JMS for novice. And configuration steps also.
We are going to create a console based application using multithreading. So create an java project for console application.
Now follow these steps..........
Add javax.jms.jar, activemq-all-5.3.0.jar, log4j-1.2.15.jar to your project library.
(You can download all of above jar files from http://www.jarfinder.com/ .
create a file naming jndi.properties and paste these following texts .. ( Deatils for jndi.properties just Google it)
# START SNIPPET: jndi
java.naming.factory.initial = org.apache.activemq.jndi.ActiveMQInitialContextFactory
# use the following property to configure the default connector
java.naming.provider.url = tcp://localhost:61616
# use the following property to specify the JNDI name the connection factory
# should appear as.
#connectionFactoryNames = connectionFactory, queueConnectionFactory, topicConnectionFactry
connectionFactoryNames = connectionFactory, queueConnectionFactory, topicConnectionFactry
# register some queues in JNDI using the form
# queue.[jndiName] = [physicalName]
queue.MyQueue = example.MyQueue
# register some topics in JNDI using the form
# topic.[jndiName] = [physicalName]
topic.MyTopic = example.MyTopic
# END SNIPPET: jndi
Add JMSConsumer.java
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class JMSConsumer implements Runnable{
private static final Log LOG = LogFactory.getLog(JMSConsumer.class);
public void run() {
Context jndiContext = null;
ConnectionFactory connectionFactory = null;
Connection connection = null;
Session session = null;
MessageConsumer consumer = null;
Destination destination = null;
String sourceName = null;
final int numMsgs;
sourceName= "MyQueue";
numMsgs = 1;
LOG.info("Source name is " + sourceName);
/*
* Create a JNDI API InitialContext object
*/
try {
jndiContext = new InitialContext();
} catch (NamingException e) {
LOG.info("Could not create JNDI API context: " + e.toString());
System.exit(1);
}
/*
* Look up connection factory and destination.
*/
try {
connectionFactory = (ConnectionFactory)jndiContext.lookup("queueConnectionFactory");
destination = (Destination)jndiContext.lookup(sourceName);
} catch (NamingException e) {
LOG.info("JNDI API lookup failed: " + e);
System.exit(1);
}
try {
connection = connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
consumer = session.createConsumer(destination);
connection.start();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
MessageListener listener = new MyQueueMessageListener();
consumer.setMessageListener(listener );
//Let the thread run for some time so that the Consumer has suffcient time to consume the message
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (JMSException e) {
LOG.info("Exception occurred: " + e);
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
}
}
}
}
}
Add JMSProducer.java
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class JMSProducer implements Runnable{
private static final Log LOG = LogFactory.getLog(JMSProducer.class);
public JMSProducer() {
}
//Run method implemented to run this as a thread.
public void run(){
Context jndiContext = null;
ConnectionFactory connectionFactory = null;
Connection connection = null;
Session session = null;
Destination destination = null;
MessageProducer producer = null;
String destinationName = null;
final int numMsgs;
destinationName = "MyQueue";
numMsgs = 5;
LOG.info("Destination name is " + destinationName);
/*
* Create a JNDI API InitialContext object
*/
try {
jndiContext = new InitialContext();
} catch (NamingException e) {
LOG.info("Could not create JNDI API context: " + e.toString());
System.exit(1);
}
/*
* Look up connection factory and destination.
*/
try {
connectionFactory = (ConnectionFactory)jndiContext.lookup("queueConnectionFactory");
destination = (Destination)jndiContext.lookup(destinationName);
} catch (NamingException e) {
LOG.info("JNDI API lookup failed: " + e);
System.exit(1);
}
/*
* Create connection. Create session from connection; false means
* session is not transacted.create producer, set the text message, set the co-relation id and send the message.
*/
try {
connection = connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
producer = session.createProducer(destination);
TextMessage message = session.createTextMessage();
for (int i = 0; i
Add MyQueueMessageListener.java
import java.io.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.jms.*;
public class MyQueueMessageListener implements MessageListener {
private static final Log LOG = LogFactory.getLog(MyQueueMessageListener.class);
/**
*
*/
public MyQueueMessageListener() {
// TODO Auto-generated constructor stub
}
/** (non-Javadoc)
* #see javax.jms.MessageListener#onMessage(javax.jms.Message)
* This is called on receving of a text message.
*/
public void onMessage(Message arg0) {
LOG.info("onMessage() called!");
if(arg0 instanceof TextMessage){
try {
//Print it out
System.out.println("Recieved message in listener: " + ((TextMessage)arg0).getText());
System.out.println("Co-Rel Id: " + ((TextMessage)arg0).getJMSCorrelationID());
try {
//Log it to a file
BufferedWriter outFile = new BufferedWriter(new FileWriter("MyQueueConsumer.txt"));
outFile.write("Recieved message in listener: " + ((TextMessage)arg0).getText());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else{
System.out.println("~~~~Listener : Error in message format~~~~");
}
}
}
Add SimpleApp.java
public class SimpleApp {
//Run the producer first, then the consumer
public static void main(String[] args) throws Exception {
runInNewthread(new JMSProducer());
runInNewthread(new JMSConsumer());
}
public static void runInNewthread(Runnable runnable) {
Thread brokerThread = new Thread(runnable);
brokerThread.setDaemon(false);
brokerThread.start();
}
}
Now run SimpleApp.java class.
All da best. Happy coding.
Here it is a simple junit test for ActiveMQ and Apache Camel. This two technologies works very good together.
If you want more details about the code, you can find a post in my blog:
http://ignaciosuay.com/unit-testing-active-mq/
public class ActiveMQTest extends CamelTestSupport {
#Override
protected CamelContext createCamelContext() throws Exception {
CamelContext camelContext = super.createCamelContext();
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://localhost?broker.persistent=false");
camelContext.addComponent("activemq", jmsComponentClientAcknowledge(connectionFactory));
return camelContext;
}
#Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
#Override
public void configure() throws Exception {
from("mina:tcp://localhost:6666?textline=true&sync=false")
.to("activemq:processHL7");
from("activemq:processHL7")
.to("mock:end");
}
};
}
#Test
public void testSendHL7Message() throws Exception {
MockEndpoint mock = getMockEndpoint("mock:end");
String m = "MSH|^~\\&|hl7Integration|hl7Integration|||||ADT^A01|||2.5|\r" +
"EVN|A01|20130617154644\r" +
"PID|1|465 306 5961||407623|Wood^Patrick^^^MR||19700101|1|\r" +
"PV1|1||Location||||||||||||||||261938_6_201306171546|||||||||||||||||||||||||20130617134644|";
mock.expectedBodiesReceived(m);
template.sendBody("mina:tcp://localhost:6666?textline=true&sync=false", m);
mock.assertIsSatisfied();
}