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Creating TIBCO Rendezvous Listener wait for response on different subject and candidate event key

Messages published and response received are on two different subjects. Right now I have following set of functionality in my java class. Class is implementing TibrvMsgCallback interface.
How can i make sure that whatever the message is published i am receiving exactly its response?
public class TibcoRVUtility implements TibrvMsgCallback {
public void onMsg(TibrvListener listener, TibrvMsg msg) {
try {
_log.info("Request and Response found");
msgReceived = true;
} catch (final TibrvException ex) {
_log.error("Exception#" + this.getClass().getName() + ".onMsg", ex);
}
}
private void sendMessage(String messageString, final String soType,
final String responseSubject) {
try {
Tibrv.open(Tibrv.IMPL_NATIVE);
TibrvTransport transport = new TibrvRvdTransport(tibcoSetting.getService(), tibcoSetting.getNetwork(),
tibcoSetting.getDaemon());
String inboxName = transport.createInbox();
TibrvMsg msg = new TibrvMsg();
msg.setSendSubject("PUBLISH_SUBJECT");
msg.add("DATA", "DUMMY_MESSAGE");
TibrvListener listener = new TibrvListener(Tibrv.defaultQueue(), this, transport, responseSubject, null);
transport.send(msg);
_log.info("msg" + msg.toString());
_log.info("message successfully sent.");
while (!msgReceived) {
try {
Tibrv.defaultQueue().dispatch();
} catch (InterruptedException ex) {
_log.error("Exception#" + this.getClass().getName() + ".sendMessage", ex);
break;
} catch (TibrvException ex) {
_log.error("Exception#" + this.getClass().getName() + ".sendMessage", ex);
break;
}
}
listener.destroy();
transport.destroy();
} catch (TibrvException e) {
_log.error("Exception#" + this.getClass().getName() + ".sendMessage", e);
}
}
}

When you send a message, add another field
var correlation_id = Guid.NewGuid().ToString();
msg.add("CORRELATION_ID", correlation_id);
and then stash that correlation ID somewhere, in a hash set perhaps.
Have the publisher read the CORRELATION_ID off of the request and add it to the response.
When you receive a message, only process it if it has the ID that you are expecting in the CORRELATION_ID field.

Slower Java Asynchronous Client run after about one hour

I tried to connect with asynchronous socket and read new messages once per second.
I used sample client code (http://www.java2s.com/Tutorials/Java/Java_Network/0080__Java_Network_Asynchronous_Socket_Channels.htm) and in getTextFromUser method I added sleep method (with 1000 ms) and removed read command from user.
Additionally I added additional logic in ReadWriteHandler method. It started work great, but after about one hour program was suspended and has worked (execute my additional logic) not once per second but one per about 10 minutes.
Do you have any idea what might happen?
Part of code:
public void ConnectAsynchr() {
try {
this.channel = AsynchronousSocketChannel.open();
SocketAddress serverAddr = new InetSocketAddress("localhost", PortNumberAsynchr);
Future<Void> result = channel.connect(serverAddr);
try {
result.get();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
this.writeLog("ConnAsynch", "Asynchronous connection succesful established", true);
this.connectAsynch = true;
this.attach = new Attachment();
this.attach.channel = this.channel;
this.attach.buffer = ByteBuffer.allocate(16384);
this.attach.isRead = false;
this.attach.mainThread = Thread.currentThread();
ReadWriteHandler readWriteHandler = new ReadWriteHandler();
this.channel.write(this.attach.buffer, this.attach, readWriteHandler);
try {
this.attach.mainThread.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
this.writeLog("ERROR", e.toString(), false);
e.printStackTrace();
}
}
catch (IOException e) {
this.writeLog("ERROR", e.toString(), false);
System.out.println(e);
}
}
class Attachment {
AsynchronousSocketChannel channel;
ByteBuffer buffer;
Thread mainThread;
boolean isRead;
}
class ReadWriteHandler implements CompletionHandler<Integer, Attachment> {
#Override
public void completed(Integer result, Attachment attach) {
if (attach.isRead) {
attach.buffer.flip();
Charset cs = Charset.forName("UTF-8");
int limits = attach.buffer.limit();
byte bytes[] = new byte[limits];
attach.buffer.get(bytes, 0, limits);
String msg = new String(bytes, cs);
writeLog("Asynchr Msg rec", msg, false);
AsynchrMessLogic(msg);
try {
msg = this.getTextFromUser();
} catch (Exception e) {
e.printStackTrace();
}
if (msg.equalsIgnoreCase("bye")) {
attach.mainThread.interrupt();
return;
}
attach.buffer.clear();
byte[] data = msg.getBytes(cs);
attach.buffer.put(data);
attach.buffer.flip();
attach.isRead = false; // It is a write
attach.channel.write(attach.buffer, attach, this);
}else {
attach.isRead = true;
attach.buffer.clear();
attach.channel.read(attach.buffer, attach, this);
}
}
#Override
public void failed(Throwable e, Attachment attach) {
e.printStackTrace();
}
private String getTextFromUser() throws Exception{
/*System.out.print("\nPlease enter a message (Bye to quit):");
BufferedReader consoleReader = new BufferedReader(
new InputStreamReader(System.in));
String msg = consoleReader.readLine();
*/
Thread.sleep(threadSleep);
String msg="aaa";
return msg;
}
}

Notify client in client server application

first of all, I'm rather new to socket programming to go easy on me ;).
I have a Java program that uses client-server programming to communicate between 1 or more clients and the server. So the clients can send any number of messages to the server where the messages are dealt with and all is fine so far. Now I want to notify the clients of e.g. database changes on the server side. So for example if one client changes for example table A, the other clients should also be notified about this change.
What I have so far is the following (server):
ExecutorService executor = null;
try (ServerSocket socket = new ServerSocket(port);)
{
executor = Executors.newFixedThreadPool(getThreadCount(5));
while(true)
{
Socket clientSocket = socket.accept();
Runnable worker = new PCRequestMapper(clientSocket);
executor.execute(worker);
}
}
catch(IOException ioe)
{
ioe.printStackTrace();
}
finally
{
if(executor != null)
{
executor.shutdown();
}
}
The request mapper class then looks like this:
public class PCRequestMapper implements Runnable
{
private Socket client = null;
private static Map<Integer, PCRequestData> requestData = null;
public PCRequestMapper(Socket client)
{
this.client = client;
}
#Override
public void run()
{
try (ObjectInputStream in = new ObjectInputStream(
client.getInputStream());
ObjectOutputStream writer = new ObjectOutputStream(
client.getOutputStream());)
{
System.out.println("Thread started in PCRequestHandler with name: "
+ Thread.currentThread().getName());
Object recObj = in.readObject();
// ToDo Do something
PCBaseRequest req = (PCBaseRequest) recObj;
System.out.println("Req type: " + req.getRequestType() + " name: "
+ req.getName());
PCRequestData data = requestData.get(req.getRequestType());
if(data == null)
{
PCException ex = new PCException();
ex.setStackTrace(new Throwable().getStackTrace());
PCBaseReply reply = getErrorReply("No mapped request handler found in services.xml for request: "+req.getRequestType()+" - "+req.getName(),
PCException.NO_MAPPED_HANDLER, ex);
writer.writeObject(reply);
}
else
{
Class<?> c = Class.forName(data.getMappedClass());
Constructor<?> cons = c.getConstructor();
PCIRequestHandler object = (PCIRequestHandler)cons.newInstance();
PCBaseReply reply = object.heyHo(req);
System.out.println("Writing reply: "+reply.getClass());
writer.writeObject(reply);
}
} catch (IOException ioe)
{
ioe.printStackTrace();
} catch (ClassNotFoundException cnfe)
{
cnfe.printStackTrace();
} catch (NoSuchMethodException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InstantiationException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
It basically takes a message (request), maps it to a configured class and then that class performs whatever action needed.
On the client side, I have a class called RequestSender, which is used to send arbitrary requests to the server:
public class PCRequestSender
{
private static int getPort(int defaultPort)
{
final String port = PCConfigHandler.getStringProperty("serverPort");
if (null != port)
{
try
{
return Integer.parseInt(port);
} catch (NumberFormatException e)
{
System.out.println("Value of port property"
+ " is not a valid positive integer [" + port + "]."
+ " Reverting to default [" + defaultPort + "].");
}
}
return defaultPort;
}
public static PCBaseReply sendRequest(PCBaseRequest req)
{
PCBaseReply reply = null;
int port = getPort(8081);
String address = PCConfigHandler.getStringProperty("serverAddress");
try (Socket serverSocket = new Socket(address, port);
ObjectOutputStream out = new ObjectOutputStream(
serverSocket.getOutputStream());
ObjectInputStream in = new ObjectInputStream(
serverSocket.getInputStream());)
{
out.writeObject(req);
Object recObj = in.readObject();
reply = (PCBaseReply) recObj;
System.out.println("Reply: "+reply);
} catch (IOException e)
{
e.printStackTrace();
} catch (ClassNotFoundException e)
{
e.printStackTrace();
}
return reply;
}
}
Now I'm a bit at a loss, because I would also like to constantly listen to a server socket to catch notifications. Do I need another socket on the server side? Is my setup not tooooo ideal?
I'm helpful for any hints...thanks!

Java Smack XMPP view server response

Hey how can i display every response from the xmpp server?
I try to send messages but a lot of them get lost on the way so i want to check the response of the server. I am using smack 3.3.1 sending to the facebook xmpp port.
DeliveryReceiptManager and/or MessageEventManager wont show anything so i would like to see everything the server is responding!
ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222);
config.setSASLAuthenticationEnabled(true);
XMPPConnection connection = new XMPPConnection(config);
try {
//ESTA LINEA HACE QUE NO DE TIMEOUT
SmackConfiguration.setPacketReplyTimeout(15000);
XMPPConnection.DEBUG_ENABLED = true;
SASLAuthentication.registerSASLMechanism("X-FACEBOOK-PLATFORM", SASLXFacebookPlatformMechanism.class);
SASLAuthentication.supportSASLMechanism("X-FACEBOOK-PLATFORM", 0);
connection.connect();
String apiKey = "1234567";
String accessToken = "";
connection.login(apiKey, accessToken);
}catch (XMPPException e){
e.printStackTrace();
}
try {
DeliveryReceiptManager deliveryReceiptManager = DeliveryReceiptManager.getInstanceFor(connection);
deliveryReceiptManager.addReceiptReceivedListener(new ReceiptReceivedListener() {
#Override
public void onReceiptReceived(String s, String s2, String s3) {
System.out.println("REVEIVED RESPONCE");
System.out.println(s);
System.out.println(s2);
System.out.println(s3);
}
});
Chat chat = connection.getChatManager().createChat("1234567890#chat.facebook.com", new MessageListener() {
#Override
public void processMessage(Chat chat, Message message) {
if(message.getType() == Message.Type.chat)
System.out.println(chat.getParticipant() + " says: " + message.getBody());
}
});
Message msg = new Message();
msg.setSubject("Invite");
msg.setBody("blablabla");
DeliveryReceiptManager.addDeliveryReceiptRequest(msg);
//MessageEventManager.addNotificationsRequests(msg, true, true, true, true);
chat.sendMessage(msg);
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}catch (XMPPException e){
e.printStackTrace();
}
try {
Thread.sleep(10000);
}catch (InterruptedException e) {
e.printStackTrace();
}

Connection.DEBUG_ENABLED = true;

Why same notification is pushed many times to android and iphone devices

I have used javapns for pushing notifications to ios and android.gcm.server to push notification for android devices. But when I sent one notifications to many devices each device get multiple number of copies of the notification sent. Sometimes this number is 2 and sometimes 3. Hardly it delivers only one which I expect always. Any Ideas ?
My code is as below
public void pushNotificationsToAndroid(String pushMessage,
String contentType, String content, String notification_id,
List<String> devices) {
try {
Sender sender = new Sender(
properties
.getProperty("notification.android.senderIdDemo"));
com.google.android.gcm.server.Message message = new com.google.android.gcm.server.Message.Builder()
.collapseKey("1").timeToLive(3).delayWhileIdle(true)
.addData("message", pushMessage)
.addData("content_type", contentType)
.addData("content", content)
.addData("notification_id", notification_id).build();
MulticastResult result = sender.send(message, devices, 1);
if (result.getResults() == null) {
System.out.println(result.getFailure());
logger.debug("getFailure() of sender.send() method :",
result.getFailure());
}
} catch (Exception exception) {
logger.error("erorr push notification ");
}
System.out.println("sent not at " + new Date());
logger.debug(
"exit pushNotificationsToAndroid() method : current time is ",
new Date());
}
public void pushNotificationsToIOS(String pushMessage, String contentType,
String content, String notification_id, List<String> devices)
{
boolean production = true;
String password = properties
.getProperty("notification.ios.password");
String keyStroke = properties
.getProperty("notification.ios.certFileName");
AppleNotificationServer jksServer = null;
try {
jksServer = new AppleNotificationServerBasicImpl(keyStroke,
password, ConnectionToAppleServer.KEYSTORE_TYPE_JKS,
production);
} catch (KeystoreException keystoreException) {
logger.error("erorr creating jksServer");
}
PushNotificationPayload payload = PushNotificationPayload.complex();
try {
payload.addAlert(pushMessage);
} catch (JSONException e2) {
logger.error("erorr creating payload alert");
}
try {
payload.addCustomDictionary("content_type", contentType);
} catch (JSONException e1) {
logger.error("erorr creating payload content_type");
}
try {
payload.addCustomDictionary("content", content);
} catch (JSONException e1) {
logger.error("erorr creating payload content");
}
try {
payload.addCustomDictionary("notification_id", notification_id);
} catch (JSONException e1) {
logger.error("erorr creating payload notification_id");
}
PushNotificationManager pushManager = new PushNotificationManager();
try {
pushManager.initializeConnection(jksServer);
} catch (CommunicationException | KeystoreException e) {
logger.error("erorr connecting Server");
}
try {
List<PushedNotification> notifications = pushManager
.sendNotifications(payload, Devices.asDevices(devices));
} catch (CommunicationException | KeystoreException e) {
logger.error("erorr push notifications");
}
}

In android official site says about some reasons for duplicate message conditions .