/// <summary>
/// Serializes and transmits a frame to the server
/// </summary>
/// <param name="Frame">
/// The <seealso cref="StompFrame"/> to send to the server
/// </param>
/// <exception cref="ArgumentException">
/// Thrown if
/// <list type="number">
/// <item>You attempt to serialize a frame class that has no <seealso cref="StompFrameType"/> attribute</item>
/// <item>You attempt to send a frame that is marked as server to client only</item>
/// <item>You fail to fill in a mandatory frame parameter</item>
/// </list>
/// </exception>
public void SendFrame(StompFrame Frame)
{
// Get some metadata about the frame that we'll need
StompFrameType SFT = Frame.GetType().GetCustomAttribute <StompFrameType>();
// Validate frame before doing anything else
if (SFT == null)
{
throw new ArgumentException("Attempt to serialize frame without frame type attribute", "Frame");
}
if (SFT.Direction == StompFrameDirection.ServerToClient)
{
throw new ArgumentException("Attempt to send server frame from client", "Frame");
}
// Serialize the frame and convert to byte array
byte[] Data = Frame.Serialize();
// Now send the frame
lock (_Client)
{
_Client.GetStream().Write(Data, 0, Data.Length);
_Client.GetStream().WriteByte(0);
_HeartbeatTxIntervalTimeout = _HeartbeatTxInterval;
}
}
private void ServerStatusCallback(object state)
{
List<ServerSideSession> sessions;
List<MessageQueue> messageQueues;
using (_lockObject.Lock())
{
if (_serverStatusMessageQueue == null)
{
return;
}
sessions = new List<ServerSideSession>(_sessions.Values);
messageQueues = new List<MessageQueue>(_messageQueues.Values);
}
// need to be unlocked to perform this, otherwise we could deadlock
var message = new ServerStatusMessage
{
MessageQueues = new List<MessageQueueStatus>(),
Sessions = new List<SessionStatus>(),
};
foreach (var session in sessions)
{
var status = session.CreateSessionStatus();
message.Sessions.Add(status);
}
foreach (var messageQueue in messageQueues)
{
var status = messageQueue.CreateStatus();
message.MessageQueues.Add(status);
}
var frame = new StompFrame(StompCommand.Message);
frame.Serialize(message);
frame.SetExpires(_config.ServerStatusPeriod);
MessageQueue queue;
using (_lockObject.Lock())
{
queue = _serverStatusMessageQueue;
}
// ReSharper disable ConditionIsAlwaysTrueOrFalse
if (queue != null)
// ReSharper restore ConditionIsAlwaysTrueOrFalse
{
queue.PublishFrame(frame);
_serverStatusTimer.Change(_config.ServerStatusPeriod, TimeSpan.FromMilliseconds(-1));
}
}
public void LogSendMessage(StompFrame frame, string destination)
{
MessageQueue messageLoggingQueue = null;
if (_messageLogMessageQueue != null)
{
using (_lockObject.Lock())
{
// ReSharper disable ConditionIsAlwaysTrueOrFalse
if (_messageLogMessageQueue != null)
// ReSharper restore ConditionIsAlwaysTrueOrFalse
{
messageLoggingQueue = _messageLogMessageQueue;
}
}
}
if (messageLoggingQueue != null)
{
var msg = new MessageLogMessage
{
SentAt = DateTime.Now,
ContentLength = frame.GetInt32(StompHeader.ContentLength, 0),
Destination = destination,
};
var msgFrame = new StompFrame(StompCommand.Message)
{
Headers =
{
{StompHeader.Destination, messageLoggingQueue.Name}
}
};
msgFrame.Serialize(msg);
messageLoggingQueue.PublishFrame(msgFrame);
}
}
/// <summary>
/// Serializes and transmits a frame to the server
/// </summary>
/// <param name="Frame">
/// The <seealso cref="StompFrame"/> to send to the server
/// </param>
/// <exception cref="ArgumentException">
/// Thrown if
/// <list type="number">
/// <item>You attempt to serialize a frame class that has no <seealso cref="StompFrameType"/> attribute</item>
/// <item>You attempt to send a frame that is marked as server to client only</item>
/// <item>You fail to fill in a mandatory frame parameter</item>
/// </list>
/// </exception>
public void SendFrame(StompFrame Frame)
{
// Get some metadata about the frame that we'll need
StompFrameType SFT = Frame.GetType().GetCustomAttribute<StompFrameType>();
// Validate frame before doing anything else
if (SFT == null)
throw new ArgumentException("Attempt to serialize frame without frame type attribute", "Frame");
if (SFT.Direction == StompFrameDirection.ServerToClient)
throw new ArgumentException("Attempt to send server frame from client", "Frame");
// Serialize the frame and convert to byte array
byte[] Data = Frame.Serialize();
// Now send the frame
lock (_Client)
{
_Client.GetStream().Write(Data, 0, Data.Length);
_Client.GetStream().WriteByte(0);
_HeartbeatTxIntervalTimeout = _HeartbeatTxInterval;
}
}
