async Task <HttpResponse> HandleRegisterDevice(HttpRequest request)
{
JsonHttpResponse response = new JsonHttpResponse();
StreamReader sr = new StreamReader(request.Body, Encoding.UTF8);
string json = await sr.ReadToEndAsync();
AddDevice(Serializer.DeserializeJson <DiscoveryBroadcast>(json));
return(response);
}
async Task <HttpResponse> HandleNewXaml(HttpRequest request)
{
JsonHttpResponse response = new JsonHttpResponse();
StreamReader sr = new StreamReader(request.Body, Encoding.UTF8);
string json = await sr.ReadToEndAsync();
EvalRequest evalRequest = Serializer.DeserializeJson <EvalRequest>(json);
EvalResponse evalResponse = new EvalResponse();
response.Data = evalResponse;
EvalResult result = null;
try
{
result = await vm.Eval(evalRequest, mainScheduler, CancellationToken.None);
evalResponse.Messages = result.Messages;
evalResponse.Duration = result.Duration;
Log.Information($"Visualizing result {result.Result}");
if (result.HasResult)
{
var tcs = new TaskCompletionSource <bool>();
Xamarin.Forms.Device.BeginInvokeOnMainThread(async() =>
{
try
{
await previewer.Preview(result);
tcs.SetResult(true);
}
catch (Exception ex)
{
await previewer.NotifyError(new ErrorViewModel("Oh no! An exception!", ex));
tcs.SetException(ex);
}
});
await tcs.Task;
}
else
{
Xamarin.Forms.Device.BeginInvokeOnMainThread(async() =>
{
await previewer.NotifyError(new ErrorViewModel("Oh no! An evaluation error!", result));
});
}
return(response);
}
catch (Exception ex)
{
Log.Exception(ex);
response.StatusCode = HttpStatusCode.InternalServerError;
return(response);
}
}
private Task <IResponse> GetPopularServers(int serversCount)
{
IResponse response = new JsonHttpResponse(HttpStatusCode.OK, reportStorage.PopularServers(serversCount).Select(server => new
{
endpoint = server.Server.Id,
name = server.Server.Name,
averageMatchesPerDay = server.AverageMatchesPerDay(globalStatisticStorage)
}));
return(Task.FromResult(response));
}
private Task <IResponse> GetBestPlayers(int playersCount)
{
var bestPlayers = reportStorage.BestPlayers(playersCount).Select(player => new
{
name = player.Player.Name,
killToDeathRatio = player.KillToDeathRatio
});
IResponse response = new JsonHttpResponse(HttpStatusCode.OK, bestPlayers);
return(Task.FromResult(response));
}
private static JsonHttpResponse CreateSuccesResponse <TResult>(TResult result) where TResult : class
{
var successResponse = new JsonHttpResponse(new ServiceResult <TResult> {
Success = true, Result = result
})
{
StatusCode = 200
};
return(successResponse);
}
//RESPONSE
private static JsonHttpResponse CreateErrorResponse(string errorMessage, int statusCode)
{
var errorResponse = new JsonHttpResponse(new ServiceResult <object> {
Success = false, Error = errorMessage
})
{
StatusCode = statusCode
};
return(errorResponse);
}
private Task <IResponse> GetRecentMatches(int matchCount)
{
var recentMatches = reportStorage.RecentMatches(matchCount).Select(match => new
{
server = match.HostServer.Id,
timestamp = match.EndTime,
results = match
});
IResponse response = new JsonHttpResponse(HttpStatusCode.OK, recentMatches);
return(Task.FromResult(response));
}
/// <summary>
/// Обрабатывает запрос с использованием указанных правил.
/// </summary>
protected async Task <object> ProcessRequestAsync <TQuery, TResult>(
IHttpRequest request,
Func <IHttpRequest, TQuery> queryFunc,
Func <TQuery, Task <TResult> > handlerFunc,
Func <TQuery, Task <TResult> > onBefore,
Func <TQuery, TResult, Exception, Task> onAfter) where TResult : DocumentQueryResult
{
var startTime = DateTime.Now;
object response;
TResult result = null;
Exception error = null;
try
{
// Разбор входящего запроса
var queryResult = TryExecute(() => queryFunc(request));
var query = queryResult.Item1;
error = queryResult.Item2;
if (error == null)
{
// Выполнение предобработчика
var onBeforeResult = await TryExecuteAsync(() => onBefore(query));
result = onBeforeResult.Item1;
error = onBeforeResult.Item2;
if (error == null)
{
// Если нет результата
if (result == null)
{
// Выполнение обработчика
var handlerResult = await TryExecuteAsync(() => handlerFunc(query));
result = handlerResult.Item1;
error = handlerResult.Item2;
}
var resultClosure = result;
var errorClosure = error;
// Выполнение постобработчика
var onAfterError = await TryExecuteAsync(() => onAfter(query, resultClosure, errorClosure));
if (onAfterError != null)
{
error = (error == null) ? onAfterError : new AggregateException(error, onAfterError);
}
}
}
}
catch (Exception exception)
{
error = exception;
}
finally
{
var success = (error == null && (result?.ValidationResult == null || result.ValidationResult.IsValid));
var requestResult = new ServiceResult <TResult>
{
Success = success,
Result = result,
Error = error?.GetFullMessage()
};
response = new JsonHttpResponse(requestResult)
{
StatusCode = success ? 200 : 500
};
}
// Запись в журнал
var method = $"{request.Method}::{request.Path}";
if (error != null)
{
_log.Error(Resources.RequestProcessedWithException, new Dictionary <string, object> {
{ "method", method }
}, error);
}
_performanceLog.Log(method, startTime, error);
return(response);
}
