public async Task <string> Resolve(string message, WebSocketConnection ws)
{
WebMessageBase request = JsonConvert.DeserializeObject <WebMessageBase>(message);
Console.WriteLine("[{0}] Resolving request: \"{1}\", status: {2}", DateTime.Now.ToString("HH:mm:ss.fff"), request.Tag, request.Status);
string output = String.Empty;
switch (request.Tag)
{
case "get_customer":
{
GetCustomerRequest customerRequest = JsonConvert.DeserializeObject <GetCustomerRequest>(message);
output = await ProcessGetCustomerRequest(customerRequest);
break;
}
case "get_merchandises":
{
GetMerchandisesRequest merchandiseRequest = JsonConvert.DeserializeObject <GetMerchandisesRequest>(message);
output = await ProcessGetMerchandisesRequest(merchandiseRequest);
break;
}
case "get_order":
{
GetOrderRequest ordeRequest = JsonConvert.DeserializeObject <GetOrderRequest>(message);
output = await ProcessGetOrderRequest(ordeRequest);
break;
}
case "make_order":
{
OrderRequestResponse orderRequest = JsonConvert.DeserializeObject <OrderRequestResponse>(message);
output = await ProcessMakeOrderRequest(orderRequest);
break;
}
case "subscription":
{
WebMessageBase subRequest = JsonConvert.DeserializeObject <WebMessageBase>(message);
output = await ProcessSubscriptionRequest(subRequest, ws);
break;
}
case "unsubscription":
{
WebMessageBase unSubRequest = JsonConvert.DeserializeObject <WebMessageBase>(message);
output = await ProcessUnsubscriptionRequest(unSubRequest, ws);
break;
}
}
return(output);
}
private async Task <string> ProcessUnsubscriptionRequest(WebMessageBase request, WebSocketConnection webSocketConnection)
{
try
{
IList <IObserver <DiscountEvent> > subs = await _orderService.GetSubscribers();
foreach (Subscription subscription in subs)
{
if (subscription.Websocket.Equals(webSocketConnection))
{
subscription.Unsubscriber.Dispose();
break;
}
}
WebMessageBase response = new WebMessageBase("unsubscription");
response.Status = MessageStatus.SUCCESS;
response.Message = "Unsubscribe request completed.";
string result = JsonConvert.SerializeObject(response, Formatting.Indented);
return(result);
}
catch (Exception e)
{
WebMessageBase response = new WebMessageBase();
response.Status = MessageStatus.FAIL;
response.Message = "Unsubscribe request error.";
string result = JsonConvert.SerializeObject(response, Formatting.Indented);
_log("During processing subscription request an error occured: " + e.Message);
return(result);
}
}
private void CloseConnection(WebSocketConnection ws)
{
_log($"Closing connection to peer: {ws}");
_sockets.Remove(ws);
}
private async Task <string> ProcessSubscriptionRequest(WebMessageBase request, WebSocketConnection webSocketConnections)
{
try
{
Subscription subscription = new Subscription(webSocketConnections, _log);
subscription.Unsubscriber = await _orderService.Subscribe(subscription);
WebMessageBase response = new WebMessageBase("subscription");
response.Status = MessageStatus.SUCCESS;
response.Message = "Subscription request completed.";
string result = JsonConvert.SerializeObject(response, Formatting.Indented);
return(result);
}
catch (Exception e)
{
WebMessageBase response = new WebMessageBase();
response.Status = MessageStatus.FAIL;
response.Message = "Subscribe request error.";
string result = JsonConvert.SerializeObject(response, Formatting.Indented);
_log("During processing subscription request an error occured: " + e.Message);
return(result);
}
}
private void InitErrorHandler(WebSocketConnection ws)
{
ws.OnClose = () => CloseConnection(ws);
ws.OnError = () => CloseConnection(ws);
}