/*public async Task<PredictionResponse> Predict(PredictionRequest predictionRequest)
* {
* if (predictionRequest?.Items == null || !predictionRequest.Items.Any())
* {
* throw new ArgumentException("The request is not correct.", nameof(predictionRequest));
* }
*
* if (this.serviceConfiguration.PredictionProviderType == PredictionProviderType.ClientExecutable)
* {
* this.ValidatePredictionExecubablePath();
* }
*
* var guid = Guid.NewGuid().ToString();
* this.logger.Info($"Generating prediction request guid '{guid}'");
*
* this.logger.Info("Inserting requests");
* await this.InsertRequests(predictionRequest, guid);
*
* if (this.serviceConfiguration.PredictionProviderType == PredictionProviderType.Server)
* {
* this.logger.Info("Calling prediction service");
* await this.CallPredictionService(guid);
* }
* else
* {
* this.logger.Info("Running prediction executable");
* await this.RunPredictionExecutable(guid);
* }
*
* this.logger.Info($"Prediction service has finished.");
*
* this.logger.Info("Generating response");
* return await this.GenerateResponse(predictionRequest, guid);
* }*/
#endregion
#region My Methods
private async Task CallPredictionService(string guid)
{
using (PredictionServiceClient client = new PredictionServiceClient(new Uri(this.serviceConfiguration.RServerUrl, UriKind.RelativeOrAbsolute)))
{
client.HttpClient.Timeout = this.serviceConfiguration.RServerClientTimeout;
var loginParameters = new LoginRequest(this.serviceConfiguration.RServerUserName, this.serviceConfiguration.RServerPassword);
var loginResult = await client.LoginWithHttpMessagesAsync(loginParameters);
if (string.IsNullOrWhiteSpace(loginResult.Body.AccessToken))
{
throw new SecurityException("Could not log in to prediction service.");
}
var headers = client.HttpClient.DefaultRequestHeaders;
var accessToken = loginResult.Body.AccessToken;
headers.Remove("Authorization");
headers.Add("Authorization", $"Bearer {accessToken}");
var result = await client.PredictWithHttpMessagesAsync(new InputParameters(guid));
if (!string.IsNullOrWhiteSpace(result.Body.ErrorMessage))
{
throw new Exception(result.Body.ErrorMessage);
}
}
}