public void Send(object body, string destination, IDictionary <string, string> headers)
{
if (State != Open)
{
throw new InvalidOperationException("The current state of the connection is not Open.");
}
var jsonPayload = JsonConvert.SerializeObject(body);
headers.Add("destination", destination);
headers.Add("content-type", "application/json;charset=UTF-8");
headers.Add("content-length", Encoding.UTF8.GetByteCount(jsonPayload).ToString());
var connectMessage = new StompMessage(StompCommand.Send, jsonPayload, headers);
socket.Send(stompSerializer.Serialize(connectMessage));
}
public void Connect(IDictionary <string, string> headers)
{
if (State != Closed)
{
throw new InvalidOperationException("The current state of the connection is not Closed.");
}
socket.Connect();
var connectMessage = new StompMessage(StompCommand.Connect, headers);
socket.Send(stompSerializer.Serialize(connectMessage));
// todo: check response
socket.OnMessage += HandleMessage;
State = Open;
}
public void Subscribe <T>(string topic, IDictionary <string, string> headers, EventHandler <T> handler)
{
if (State != Open)
{
throw new InvalidOperationException("The current state of the connection is not Open.");
}
headers.Add("destination", topic);
headers.Add("id", "stub"); // todo: study and implement
var subscribeMessage = new StompMessage(StompCommand.Subscribe, headers);
socket.Send(stompSerializer.Serialize(subscribeMessage));
// todo: check response
// todo: implement advanced topic
var sub = new Subscriber((sender, body) => handler(this, (T)body), typeof(T));
subscribers.Add(topic, sub);
}
public string Serialize(StompMessage message)
{
var buffer = new StringBuilder();
buffer.Append(message.Command + "\n");
if (message.Headers != null)
{
foreach (var header in message.Headers)
{
buffer.Append(header.Key + ":" + header.Value + "\n");
}
}
buffer.Append("\n");
buffer.Append(message.Body);
buffer.Append('\0');
return(buffer.ToString());
}
