// Handle data received event
private void OnReceivedData(byte[] buffer, int offset, int size)
{
// Decode the raw bytes and appened them to buffer
dataBuffer += Encoding.UTF8.GetString(buffer, offset, size);
// Split the string
var segments = dataBuffer.Split(MessageEndMark);
var validSegmentsCount = segments.Length - (dataBuffer.EndsWith(MessageEndMark) ? 0 : 1);
// Extract request from segments and emit them
for (int i = 0; i < validSegmentsCount; i++)
{
if (segments[i].Length > 0)
{
// Notify the server
if (OnSessionMessage != null)
{
OnSessionMessage.Invoke(segments[i]);
}
}
}
// Add last segment to the buffer for further processing if not valid
dataBuffer = dataBuffer.EndsWith(MessageEndMark) ? string.Empty : segments[segments.Length - 1];
}
/// <summary>
/// Initialize the handler factory.
/// </summary>
/// <param name="receiverNamespace"></param>
/// <param name="receiverPath"></param>
/// <param name="messageHandler"></param>
/// <param name="options"></param>
public SessionMessageAsyncHandlerFactory(string receiverNamespace, string receiverPath, OnSessionMessage messageHandler, OnSessionMessageOptions options)
{
_receiverNamespace = receiverNamespace;
_receiverPath = receiverPath;
_messageHandler = messageHandler;
_options = options;
}
/// <summary>
/// Initialize the handler factory.
/// </summary>
/// <param name="receiverNamespace"></param>
/// <param name="receiverPath"></param>
/// <param name="messageHandler"></param>
/// <param name="options"></param>
public SessionMessageAsyncHandlerFactory(string receiverNamespace, string receiverPath, OnSessionMessage messageHandler, OnSessionMessageOptions options)
{
_receiverNamespace = receiverNamespace;
_receiverPath = receiverPath;
_messageHandler = messageHandler;
_options = options;
}
public SessionMessageAsyncHandler(string receiverNamespace, string receiverPath, MessageSession session, OnSessionMessage messageHandler, OnSessionMessageOptions options)
{
_receiverNamespace = receiverNamespace;
_receiverPath = receiverPath;
_session = session;
_messageHandler = messageHandler;
_options = options;
}
public SessionMessageAsyncHandler(string receiverNamespace, string receiverPath, MessageSession session, OnSessionMessage messageHandler, OnSessionMessageOptions options)
{
_receiverNamespace = receiverNamespace;
_receiverPath = receiverPath;
_session = session;
_messageHandler = messageHandler;
_options = options;
}
public Task StartAsync(OnSessionMessage messageHandler, OnSessionMessageException exceptionHandler, OnSessionMessageOptions options)
{
lock (_initializationLock)
{
if (_initialized)
{
throw new MessageReceiverException("Message receiver has already been initialized.");
}
if (messageHandler == null)
{
throw new ArgumentNullException("messageHandler");
}
if (options == null)
{
options = _defaultOptions;
}
// Log.
ServiceBusEventSource.Log.SessionMessagePumpStart(GetType().Name, Namespace, Path, options.AutoRenewSessionTimeout, options.MaxConcurrentSessions);
// Initialize the handler options.
var sessionHandlerOptions = new SessionHandlerOptions();
sessionHandlerOptions.AutoComplete = options.AutoComplete;
sessionHandlerOptions.AutoRenewTimeout = options.AutoRenewSessionTimeout;
sessionHandlerOptions.MaxConcurrentSessions = options.MaxConcurrentSessions;
sessionHandlerOptions.MessageWaitTimeout = options.MessageWaitTimeout;
sessionHandlerOptions.ExceptionReceived += (s, e) =>
{
if (e.Exception != null)
{
// Log.
ServiceBusEventSource.Log.MessagePumpExceptionReceived(Namespace, Path,
e.Action, e.Exception);
// Handle exception.
if (exceptionHandler != null)
{
exceptionHandler(e.Action, e.Exception);
}
}
};
// Mark receiver as initialized.
_initialized = true;
// Start.
return(OnStartAsync(new SessionMessageAsyncHandlerFactory(Namespace, Path, messageHandler, options), new SessionHandlerOptions
{
AutoComplete = options.AutoComplete,
AutoRenewTimeout = options.AutoRenewSessionTimeout,
MaxConcurrentSessions = options.MaxConcurrentSessions,
MessageWaitTimeout = options.MessageWaitTimeout
}));
}
}
public Task StartAsync(OnSessionMessage messageHandler, OnSessionMessageException exceptionHandler, OnSessionMessageOptions options)
{
lock (_initializationLock)
{
if (_initialized)
throw new MessageReceiverException("Message receiver has already been initialized.");
if (messageHandler == null)
throw new ArgumentNullException("messageHandler");
if (options == null)
options = new OnSessionMessageOptions();
// Log.
ServiceBusEventSource.Log.StartSessionMessageReceiver(GetType().Name, Namespace, Path);
// Initialize the handler options.
var sessionHandlerOptions = new SessionHandlerOptions();
sessionHandlerOptions.AutoComplete = options.AutoComplete;
sessionHandlerOptions.AutoRenewTimeout = options.AutoRenewSessionTimeout;
sessionHandlerOptions.MaxConcurrentSessions = options.MaxConcurrentSessions;
sessionHandlerOptions.MessageWaitTimeout = options.MessageWaitTimeout;
sessionHandlerOptions.ExceptionReceived += (s, e) =>
{
if (e.Exception != null)
{
// Log.
ServiceBusEventSource.Log.SessionMessageReceiverException(Namespace, Path,
null, null, null, e.Action, e.Exception.Message, e.Exception.StackTrace);
// Handle exception.
if (exceptionHandler != null)
exceptionHandler(e.Action, e.Exception);
}
};
// Mark receiver as initialized.
_initialized = true;
// Start.
return OnStartAsync(new SessionMessageAsyncHandlerFactory(Namespace, Path, messageHandler, options), new SessionHandlerOptions
{
AutoComplete = options.AutoComplete,
AutoRenewTimeout = options.AutoRenewSessionTimeout,
MaxConcurrentSessions = options.MaxConcurrentSessions,
MessageWaitTimeout = options.MessageWaitTimeout
});
}
}
public static Task StartAsync(this ISessionMessagePump pump, OnSessionMessage messageHandler)
{
return(pump.StartAsync(messageHandler, null, null));
}
public static Task StartAsync(this ISessionMessagePump pump, OnSessionMessage messageHandler, OnSessionMessageException exception)
{
return(pump.StartAsync(messageHandler, exception, null));
}
public static Task StartAsync(this ISessionMessagePump pump, OnSessionMessage messageHandler)
{
return pump.StartAsync(messageHandler, null, null);
}
public static Task StartAsync(this ISessionMessagePump pump, OnSessionMessage messageHandler, OnSessionMessageException exception)
{
return pump.StartAsync(messageHandler, exception, null);
}