protected virtual ICommand ReadConnected(StompFrame frame)
{
_remoteWireFormatInfo = new();
if (frame.HasProperty(PropertyKeys.Version))
{
_remoteWireFormatInfo.Version = Single.Parse(frame.RemoveProperty(PropertyKeys.Version), CultureInfo.InvariantCulture);
if (_remoteWireFormatInfo.Version > 1.0f)
{
_encodeHeaders = true;
}
if (frame.HasProperty(PropertyKeys.Session))
{
_remoteWireFormatInfo.Session = frame.RemoveProperty(PropertyKeys.Session);
}
if (frame.HasProperty(PropertyKeys.HartBeat))
{
var hearBeats = frame.RemoveProperty(PropertyKeys.HartBeat)
.Split(",".ToCharArray());
if (hearBeats.Length != 2)
{
throw new IoException("Malformed heartbeat property in Connected Frame.");
}
_remoteWireFormatInfo.WriteCheckInterval = Int32.Parse(hearBeats[0]
.Trim());
_remoteWireFormatInfo.ReadCheckInterval = Int32.Parse(hearBeats[1]
.Trim());
}
}
else
{
_remoteWireFormatInfo.ReadCheckInterval = 0;
_remoteWireFormatInfo.WriteCheckInterval = 0;
_remoteWireFormatInfo.Version = 1.0f;
}
if (_connectedResponseId != -1)
{
var answer = new Response {
CorrelationId = _connectedResponseId
};
SendCommand(answer);
_connectedResponseId = -1;
}
else
{
throw new IoException("Received Connected Frame without a set Response Id for it.");
}
return(_remoteWireFormatInfo);
}
protected virtual ICommand CreateCommand(StompFrame frame)
{
var command = frame.Command;
switch (command)
{
case "RECEIPT":
{
var text = frame.RemoveProperty(PropertyKeys.ReceiptId);
if (text != null)
{
var answer = new Response();
if (text.StartsWith("ignore:", StringComparison.Ordinal))
{
text = text.Substring("ignore:".Length);
}
answer.CorrelationId = Int32.Parse(text);
return(answer);
}
}
break;
case "CONNECTED":
return(ReadConnected(frame));
case "ERROR":
{
var text = frame.RemoveProperty(PropertyKeys.ReceiptId);
if (text?.StartsWith("ignore:", StringComparison.Ordinal) == true)
{
return new Response {
CorrelationId = Int32.Parse(text.Substring("ignore:".Length))
}
}
;
var answer = new ExceptionResponse();
if (text != null)
{
answer.CorrelationId = Int32.Parse(text);
}
var error = new BrokerError {
Message = frame.RemoveProperty(PropertyKeys.Message)
};
answer.Exception = error;
return(answer);
}
case "KEEPALIVE":
return(new KeepAliveInfo());
case "MESSAGE":
return(ReadMessage(frame));
}
if (Tracer.IsErrorEnabled)
{
Tracer.Error("Unknown command: " + frame.Command + " headers: " + frame.Properties);
}
return(null);
}
protected virtual ICommand ReadMessage(StompFrame frame)
{
frame.RemoveProperty(PropertyKeys.Transformation);
var message = new BytesMessage {
Content = frame.Content
};
// Remove any receipt header we might have attached if the outbound command was
// sent with response required set to true
frame.RemoveProperty(PropertyKeys.Receipt);
// Clear any attached content length headers as they aren't needed anymore and can
// clutter the Message Properties.
frame.RemoveProperty(PropertyKeys.ContentLength);
message.Type = frame.RemoveProperty(PropertyKeys.Type);
message.Destination = Destination.ConvertToDestination(frame.RemoveProperty(PropertyKeys.Destination), SkipDestinationNameFormatting);
message.ReplyTo = Destination.ConvertToDestination(frame.RemoveProperty(PropertyKeys.ReplyTo), SkipDestinationNameFormatting);
message.TargetConsumerId = new(frame.RemoveProperty(PropertyKeys.Subscription));
message.CorrelationId = frame.RemoveProperty(PropertyKeys.CorrelationId);
message.MessageId = new(frame.RemoveProperty(PropertyKeys.MessageId));
message.Persistent = StompHelper.ToBool(frame.RemoveProperty(PropertyKeys.Persistent), false);
// If it came from NMS.Stomp we added this header to ensure its reported on the
// receiver side.
if (frame.HasProperty(PropertyKeys.NmsxDeliveryMode))
{
message.Persistent = StompHelper.ToBool(frame.RemoveProperty(PropertyKeys.NmsxDeliveryMode), false);
}
if (frame.HasProperty(PropertyKeys.Priority))
{
message.Priority = Byte.Parse(frame.RemoveProperty(PropertyKeys.Priority));
}
if (frame.HasProperty(PropertyKeys.TimeStamp))
{
message.Timestamp = Int64.Parse(frame.RemoveProperty(PropertyKeys.TimeStamp));
}
if (frame.HasProperty(PropertyKeys.Expires))
{
message.Expiration = Int64.Parse(frame.RemoveProperty(PropertyKeys.Expires));
}
if (frame.RemoveProperty(PropertyKeys.Redelivered) != null)
{
message.RedeliveryCounter = 1;
}
// now lets add the generic headers
foreach (var key in frame.Properties.Keys)
{
var value = frame.Properties[key];
message.Headers[key] = value;
}
return(new MessageDispatch(message.TargetConsumerId, message.Destination, message, message.RedeliveryCounter));
}