public AsyncMessageConsumerUsingMessageListener(String QueueName, int NoOfSessions)
{
EMSQueueConnection.connection.Stop(); /* Iffy if multiple clients are using the conn. */
this.QueueName = QueueName;
this.NoOfSessions = NoOfSessions;
TIBCO.EMS.Session session = null;
TIBCO.EMS.MessageConsumer msgConsumer = null;
TIBCO.EMS.Destination destination = null;
try
{
for (int i = 0; i < NoOfSessions; i++)
{
/*
* Create a new session which in turn creates a thread interanlly .
* Ack mode is hard coded for now , see no possibulty for it being other than CLient_ack*/
session = EMSQueueConnection.connection.CreateSession(false, Session.CLIENT_ACKNOWLEDGE);
// create the consumer
if (destination == null)
{
destination = session.CreateQueue(QueueName);
}
msgConsumer = session.CreateConsumer(destination);
// set the message listener
msgConsumer.MessageListener = this;
/*
* Console.WriteLine("\n Subscribing to destination: " + QueueName);Console.WriteLine("************************************************\n ThreadName:"
+ System.Threading.Thread.CurrentThread.Name + "\n Session:" + session.ToString()
+
+ "\n SessionID:" + session.SessID + "\n Connection:" + session.Connection.ToString() +
+ "\n MessageConsumer:" + msgConsumer.ToString() );*/
}
EMSQueueConnection.connection.Start();
// Start pub-sub messages
}
catch (Exception e)
{
Console.Error.WriteLine("Exception in AsyncMsgConsumer: " + e.Message);
Console.Error.WriteLine(e.StackTrace);
}
}
/// <summary>
/// Opens if is not initialized yet, otherwise just returns with no action.
/// </summary>
public void Open()
{
if (!initialized)
{
ValidateQueueConfiguration();
try
{
factory = new ConnectionFactory(ServerConfig.Url, ServerConfig.ClientId);
}
catch (EMSException e)
{
Log.TraceData(Log.Source, TraceEventType.Error, 15000, "URL/Client ID is wrong. " + e.ToString());
throw;
}
IConfigurationValueProvider configProvider = new SingleTagSectionConfigurationProvider(this.ServerConfig.AuthenticationSectionName);
try
{
connection = factory.CreateConnection(configProvider["userName"], configProvider["password"]);
}
catch (EMSException e)
{
Log.TraceData(Log.Source, TraceEventType.Error, 15001, "Connection to ems server failed! " + e.ToString());
throw;
}
try
{
session = connection.CreateSession(this.sessionConfig.IsTransactional, sessionConfig.Mode);
}
catch (EMSException e)
{
Log.TraceData(Log.Source, TraceEventType.Error, 15002, "Error during session creation. " + e.ToString());
throw;
}
try
{
destination =
CreateDestination(session, queueConfig.Name, queueConfig.Type);
consumer =
session.CreateConsumer(destination, queueConfig.MessageSelector,
queueConfig.NoLocal);
connection.Start();
}
catch (EMSException e)
{
Log.TraceData(Log.Source, TraceEventType.Error, 15003, "Queue initialization error. " + e);
throw;
}
initialized = true;
}
}
public bool Connect()
{
if (emsSession == null || emsSession.IsClosed)
{
try
{
ConnectionFactory factory = new TIBCO.EMS.ConnectionFactory(emsServerUrl);
// create the emsConnection
emsConnection = factory.CreateConnection(emsUserName, emsUserPassword);
Utilities.WriteLog(String.Format(@"Подсоединено к : {0};", emsServerUrl));
// create the emsSession
emsSession = emsConnection.CreateSession(false, Session.AUTO_ACKNOWLEDGE);
Utilities.WriteLog(String.Format(@"Создана сессия;"));
// set the exception listener
emsConnection.ExceptionListener = this;
msgProducer = emsSession.CreateProducer(destination);
Utilities.WriteLog(String.Format(@"Создан продюсер;"));
completionListener = new EMSCompletionListener(entitiesModel);
// create the emsDestination
if (useTopic)
emsDestination = emsSession.CreateTopic(_emsInputQueueName);
else
emsDestination = emsSession.CreateQueue(_emsInputQueueName);
if (useTopic)
destination = emsSession.CreateTopic(_emsOutputQueueName);
else
destination = emsSession.CreateQueue(_emsOutputQueueName);
var message = String.Format(@"Подписано на события очереди: {0}",_emsInputQueueName);
Utilities.WriteLog(message);
// create the consumer
msgConsumer = emsSession.CreateConsumer(emsDestination);
Utilities.WriteLog(String.Format(@"Создан консюмер: {0}", emsDestination.ToString()));
// set the message listener
msgConsumer.MessageListener = this;
xmlHelper = new XMLHelper();
// start the emsConnection
emsConnection.Start();
// Note: when message callback is used, the emsSession
// creates the dispatcher thread which is not a daemon
// thread by default. Thus we can quit this method however
// the application will keep running. It is possible to
// specify that all emsSession dispatchers are daemon threads.
return true;
}
catch (Exception ex)
{
Utilities.WriteExceptionMessageToLog(ex, String.Format(@"Ошибка подключения к очереди {0}", _emsInputQueueName));
return false;
}
}
return true;
}
