protected void btnPredictDelays_Click(object sender, EventArgs e)
{
var departureDate = DateTime.Parse(txtDepartureDate.Text);
departureDate.AddHours(double.Parse(txtDepartureHour.Text));
var selectedAirport = ddlOriginAirportCode.SelectedItem;
DepartureQuery query = new DepartureQuery()
{
DepartureDate = departureDate,
DepartureDayOfWeek = ((int)departureDate.DayOfWeek) + 1, //Monday = 1
Carrier = txtCarrier.Text,
OriginAirportCode = ddlOriginAirportCode.SelectedItem.Text,
OriginAirportWundergroundID = ddlOriginAirportCode.SelectedItem.Value,
DestAirportCode = ddlDestAirportCode.SelectedItem.Text
};
GetWeatherForecast(query).Wait();
if (forecast == null)
{
throw new Exception("Forecast request did not succeed. Check Settings for weatherApiKey.");
}
PredictDelays(query, forecast).Wait();
UpdateStatusDisplay(prediction, forecast);
}
protected async void btnPredictDelays_Click(object sender, EventArgs e)
{
var departureDate = DateTime.Parse(txtDepartureDate.Text);
departureDate = departureDate.AddHours(double.Parse(txtDepartureHour.Text));
var selectedAirport = aiports.FirstOrDefault(a => a.AirportCode == ddlOriginAirportCode.SelectedItem.Value);
if (selectedAirport != null)
{
var query = new DepartureQuery()
{
DepartureDate = departureDate,
DepartureDayOfWeek = ((int)departureDate.DayOfWeek) + 1, //Monday = 1
Carrier = txtCarrier.Text,
OriginAirportCode = selectedAirport.AirportCode,
OriginAirportLat = selectedAirport.Latitude,
OriginAirportLong = selectedAirport.Longitude,
DestAirportCode = ddlDestAirportCode.SelectedItem.Text
};
await GetWeatherForecast(query);
if (forecast == null)
{
throw new Exception("Forecast request did not succeed. Check Settings for weatherApiKey.");
}
PredictDelays(query, forecast).Wait();
}
UpdateStatusDisplay(prediction, forecast);
}
private async Task GetWeatherForecast(DepartureQuery departureQuery)
{
var departureDate = departureQuery.DepartureDate;
forecast = null;
try
{
var weatherPrediction = await darkSky.GetForecast(departureQuery.OriginAirportLat,
departureQuery.OriginAirportLong, new DarkSkyService.OptionalParameters
{
ExtendHourly = true,
DataBlocksToExclude = new List <ExclusionBlock> {
ExclusionBlock.Flags,
ExclusionBlock.Alerts, ExclusionBlock.Minutely
}
});
if (weatherPrediction.Response.Hourly.Data != null && weatherPrediction.Response.Hourly.Data.Count > 0)
{
var timeZone = DateTimeZoneProviders.Tzdb[weatherPrediction.Response.TimeZone];
var zonedDepartureDate = LocalDateTime.FromDateTime(departureDate)
.InZoneLeniently(timeZone);
forecast = (from f in weatherPrediction.Response.Hourly.Data
where f.DateTime == zonedDepartureDate.ToDateTimeOffset()
select new ForecastResult()
{
WindSpeed = f.WindSpeed ?? 0,
Precipitation = f.PrecipIntensity ?? 0,
Pressure = f.Pressure ?? 0,
ForecastIconUrl = GetImagePathFromIcon(f.Icon),
Condition = f.Summary
}).FirstOrDefault();
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.TraceError("Failed retrieving weather forecast: " + ex.ToString());
}
}
private async Task GetWeatherForecast(DepartureQuery departureQuery)
{
DateTime departureDate = departureQuery.DepartureDate;
string fullWeatherURI = string.Format(BASE_WEATHER_URI, weatherApiKey, departureQuery.OriginAirportWundergroundID);
forecast = null;
try
{
using (var client = new HttpClient())
{
HttpResponseMessage response = await client.GetAsync(fullWeatherURI).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
{
string result = await response.Content.ReadAsStringAsync();
JObject jsonObj = JObject.Parse(result);
forecast = (from f in jsonObj["hourly_forecast"]
where f["FCTTIME"]["year"].Value <int>() == departureDate.Year &&
f["FCTTIME"]["mon"].Value <int>() == departureDate.Month &&
f["FCTTIME"]["mday"].Value <int>() == departureDate.Day &&
f["FCTTIME"]["hour"].Value <int>() == departureDate.Hour
select new ForecastResult()
{
WindSpeed = f["wspd"]["english"].Value <int>(),
Precipitation = f["qpf"]["english"].Value <double>(),
Pressure = f["mslp"]["english"].Value <double>(),
ForecastIconUrl = f["icon_url"].Value <string>(),
Condition = f["condition"].Value <string>()
}).FirstOrDefault();
}
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.TraceError("Failed retrieving weather forecast: " + ex.ToString());
}
}
private async Task PredictDelays(DepartureQuery query, ForecastResult forecast)
{
if (String.IsNullOrEmpty(mlApiKey))
{
return;
}
string fullMLUri = string.Format(BASE_ML_URI, !String.IsNullOrWhiteSpace(mlServiceLocation) ? mlServiceLocation : DEFAULT_ML_SERVICE_LOCATION, mlWorkspaceId, mlServiceId);
var departureDate = DateTime.Parse(txtDepartureDate.Text);
prediction = new DelayPrediction();
try
{
using (var client = new HttpClient())
{
var scoreRequest = new
{
Inputs = new Dictionary <string, StringTable>()
{
{
"input1",
new StringTable()
{
ColumnNames = new string[]
{
"OriginAirportCode",
"Month",
"DayofMonth",
"CRSDepHour",
"DayOfWeek",
"Carrier",
"DestAirportCode",
"WindSpeed",
"SeaLevelPressure",
"HourlyPrecip"
},
Values = new string[, ]
{
{
query.OriginAirportCode,
query.DepartureDate.Month.ToString(),
query.DepartureDate.Day.ToString(),
query.DepartureDate.Hour.ToString(),
query.DepartureDayOfWeek.ToString(),
query.Carrier,
query.DestAirportCode,
forecast.WindSpeed.ToString(),
forecast.Pressure.ToString(),
forecast.Precipitation.ToString()
}
}
}
},
},
GlobalParameters = new Dictionary <string, string>()
{
}
};
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", mlApiKey);
client.BaseAddress = new Uri(fullMLUri);
HttpResponseMessage response = await client.PostAsJsonAsync("", scoreRequest).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
{
string result = await response.Content.ReadAsStringAsync();
JObject jsonObj = JObject.Parse(result);
string prediction = jsonObj["Results"]["output1"]["value"]["Values"][0][10].ToString();
string confidence = jsonObj["Results"]["output1"]["value"]["Values"][0][11].ToString();
if (prediction.Equals("1"))
{
this.prediction.ExpectDelays = true;
this.prediction.Confidence = double.Parse(confidence);
}
else if (prediction.Equals("0"))
{
this.prediction.ExpectDelays = false;
this.prediction.Confidence = double.Parse(confidence);
}
else
{
this.prediction = null;
}
}
else
{
prediction = null;
Trace.Write(string.Format("The request failed with status code: {0}", response.StatusCode));
// Print the headers - they include the request ID and the timestamp, which are useful for debugging the failure
Trace.Write(response.Headers.ToString());
string responseContent = await response.Content.ReadAsStringAsync();
Trace.Write(responseContent);
}
}
}
catch (Exception ex)
{
prediction = null;
System.Diagnostics.Trace.TraceError("Failed retrieving delay prediction: " + ex.ToString());
throw;
}
}
private async Task PredictDelays(DepartureQuery query, ForecastResult forecast)
{
if (string.IsNullOrEmpty(mlUrl))
{
return;
}
var departureDate = DateTime.Parse(txtDepartureDate.Text);
prediction = new DelayPrediction();
try
{
using (var client = new HttpClient())
{
var predictionRequest = new PredictionRequest
{
OriginAirportCode = query.OriginAirportCode,
Month = query.DepartureDate.Month,
DayofMonth = query.DepartureDate.Day,
CRSDepHour = query.DepartureDate.Hour,
DayOfWeek = query.DepartureDayOfWeek,
Carrier = query.Carrier,
DestAirportCode = query.DestAirportCode,
WindSpeed = forecast.WindSpeed,
SeaLevelPressure = forecast.Pressure,
HourlyPrecip = forecast.Precipitation
};
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", mlApiKey);
client.BaseAddress = new Uri(mlUrl);
var response = await client.PostAsJsonAsync("", predictionRequest).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
{
var result = await response.Content.ReadAsStringAsync();
var token = JToken.Parse(result);
var parsedResult = JsonConvert.DeserializeObject <PredictionResult>((string)token);
if (parsedResult.prediction == 1)
{
this.prediction.ExpectDelays = true;
this.prediction.Confidence = parsedResult.probability;
}
else if (parsedResult.prediction == 0)
{
this.prediction.ExpectDelays = false;
this.prediction.Confidence = parsedResult.probability;
}
else
{
this.prediction = null;
}
}
else
{
prediction = null;
Trace.Write($"The request failed with status code: {response.StatusCode}");
// Print the headers - they include the request ID and the timestamp, which are useful for debugging the failure
Trace.Write(response.Headers.ToString());
var responseContent = await response.Content.ReadAsStringAsync();
Trace.Write(responseContent);
}
}
}
catch (Exception ex)
{
prediction = null;
System.Diagnostics.Trace.TraceError("Failed retrieving delay prediction: " + ex.ToString());
throw;
}
}
