/// <summary>
/// Executes the request.
/// </summary>
/// <param name="remainingTimeCallback">A callback function in which the estimated remaining time in seconds is sent.</param>
/// <returns>A response containing the requested data.</returns>
public override async Task <Response> Execute(Action <int> remainingTimeCallback)
{
Stream responseStream = null;
GetMetadata = true;
if (Pushpins != null && Pushpins.Count > 18)
{
//Make a post request when there are more than 18 pushpins as there is a risk of URL becoming too large for a GET request.
responseStream = await ServiceHelper.PostStringAsync(new Uri(GetPostRequestUrl()), GetPushpinsAsString(), null);
}
else
{
responseStream = await ServiceHelper.GetStreamAsync(new Uri(GetRequestUrl()));
}
if (responseStream != null)
{
var r = ServiceHelper.DeserializeStream <Response>(responseStream);
responseStream.Dispose();
return(r);
}
return(null);
}
/// <summary>
/// Makes an Async request and monitors it till completion.
/// </summary>
/// <typeparam name="T">The type of resource to expect to be returned.</typeparam>
/// <param name="requestUrl">REST URL request.</param>
/// <param name="requestBody">The post request body.</param>
/// <param name="remainingTimeCallback">A callback function in which the estimated remaining time in seconds is sent.</param>
/// <returns>A completed response for a request.</returns>
internal static async Task <Response> MakeAsyncPostRequest <T>(string requestUrl, string requestBody, Action <int> remainingTimeCallback) where T : Resource
{
Response response = null;
using (var responseStream = await ServiceHelper.PostStringAsync(new Uri(requestUrl), requestBody, "application/json"))
{
response = ServiceHelper.DeserializeStream <Response>(responseStream);
return(await ProcessAsyncResponse <T>(response, remainingTimeCallback));
}
}
/// <summary>
/// Processes a REST requests that returns data.
/// </summary>
/// <param name="request">The REST request to process.</param>
/// <returns>The response from the REST service.</returns>
public static async Task <Response> GetResponseAsync(BaseRestRequest request)
{
Stream responseStream = null;
if (request is ElevationRequest)
{
var r = request as ElevationRequest;
if (r.Points != null && r.Points.Count > 50)
{
//Make a post request when there are more than 50 points as there is a risk of URL becoming too large for a GET request.
responseStream = await ServiceHelper.PostStringAsync(new Uri(r.GetPostRequestUrl()), r.GetPointsAsString(), null);
}
else
{
responseStream = await ServiceHelper.GetStreamAsync(new Uri(r.GetRequestUrl()));
}
}
else if (request is ImageryRequest)
{
var r = request as ImageryRequest;
r.GetMetadata = true;
if (r.Pushpins != null && r.Pushpins.Count > 18)
{
//Make a post request when there are more than 18 pushpins as there is a risk of URL becoming too large for a GET request.
responseStream = await ServiceHelper.PostStringAsync(new Uri(r.GetPostRequestUrl()), r.GetPushpinsAsString(), null);
}
else
{
responseStream = await ServiceHelper.GetStreamAsync(new Uri(r.GetRequestUrl()));
}
}
else
{
responseStream = await ServiceHelper.GetStreamAsync(new Uri(request.GetRequestUrl()));
}
if (responseStream != null)
{
var ser = new DataContractJsonSerializer(typeof(Response));
var r = ser.ReadObject(responseStream) as Response;
responseStream.Dispose();
return(r);
}
return(null);
}
/// <summary>
/// Processes a REST requests that returns an image stream.
/// </summary>
/// <param name="imageryRequest">The REST request to process.</param>
/// <returns>A stream containing an image.</returns>
public static async Task <Stream> GetImageAsync(BaseImageryRestRequest imageryRequest)
{
if (imageryRequest is ImageryRequest)
{
var r = imageryRequest as ImageryRequest;
r.GetMetadata = false;
if (r.Pushpins != null && (r.Pushpins.Count > 18 || r.Style != null))
{
//Make a post request when there are more than 18 pushpins as there is a risk of URL becoming too large for a GET request.
return(await ServiceHelper.PostStringAsync(new Uri(r.GetPostRequestUrl()), r.GetPushpinsAsString(), null).ConfigureAwait(false));
}
else
{
return(await ServiceHelper.GetStreamAsync(new Uri(r.GetRequestUrl())).ConfigureAwait(false));
}
}
else
{
return(await ServiceHelper.GetStreamAsync(new Uri(imageryRequest.GetRequestUrl())).ConfigureAwait(false));
}
}
/// <summary>
/// Executes the request.
/// </summary>
/// <param name="remainingTimeCallback">A callback function in which the estimated remaining time in seconds is sent.</param>
/// <returns>A response containing the requested data.</returns>
public override async Task <Response> Execute(Action <int> remainingTimeCallback)
{
Stream responseStream = null;
if (Points != null && Points.Count > 50)
{
//Make a post request when there are more than 50 points as there is a risk of URL becoming too large for a GET request.
responseStream = await ServiceHelper.PostStringAsync(new Uri(GetPostRequestUrl()), GetPointsAsString(), null).ConfigureAwait(false);
}
else
{
responseStream = await ServiceHelper.GetStreamAsync(new Uri(GetRequestUrl())).ConfigureAwait(false);
}
if (responseStream != null)
{
var r = ServiceHelper.DeserializeStream <Response>(responseStream);
responseStream.Dispose();
return(r);
}
return(null);
}
/// <summary>
/// Executes the request.
/// </summary>
/// <param name="remainingTimeCallback">A callback function in which the estimated remaining time is sent.</param>
/// <returns>A response containing the requested distance matrix.</returns>
public override async Task <Response> Execute(Action <int> remainingTimeCallback)
{
//Make sure all origins and destinations are geocoded.
await GeocodeWaypoints();
var requestUrl = GetRequestUrl();
var requestBody = GetPostRequestBody();
Response response = null;
using (var responseStream = await ServiceHelper.PostStringAsync(new Uri(requestUrl), requestBody, "application/json"))
{
response = ServiceHelper.DeserializeStream <Response>(responseStream);
}
if (response != null && response.ErrorDetails != null && response.ErrorDetails.Length > 0)
{
throw new Exception("Error: " + response.ErrorDetails[0]);
}
if (response != null && response.ResourceSets != null && response.ResourceSets.Length > 0 && response.ResourceSets[0].Resources != null && response.ResourceSets[0].Resources.Length > 0)
{
if (response.ResourceSets[0].Resources[0] is DistanceMatrixAsyncStatus && !string.IsNullOrEmpty((response.ResourceSets[0].Resources[0] as DistanceMatrixAsyncStatus).RequestId))
{
var status = response.ResourceSets[0].Resources[0] as DistanceMatrixAsyncStatus;
var statusUrl = new Uri(status.CallbackUrl);
//var statusUrl = new Uri(this.Domain + "Routes/DistanceMatrixAsyncCallback?requestId=" + status.RequestId + "&key=" + this.BingMapsKey);
if (status.CallbackInSeconds > 0 || !status.IsCompleted || string.IsNullOrEmpty(status.ResultUrl))
{
remainingTimeCallback?.Invoke(status.CallbackInSeconds);
//Wait remaining seconds.
await Task.Delay(TimeSpan.FromSeconds(status.CallbackInSeconds));
status = await MonitorAsyncStatus(statusUrl, 0, remainingTimeCallback);
}
if (status != null)
{
if (status.IsCompleted && !string.IsNullOrEmpty(status.ResultUrl))
{
try
{
using (var resultStream = await ServiceHelper.GetStreamAsync(new Uri(status.ResultUrl)))
{
DistanceMatrix dm = ServiceHelper.DeserializeStream <DistanceMatrix>(resultStream);
response.ResourceSets[0].Resources[0] = dm;
//TODO: Overwrite origins/destinations for now as we have added support for geocoding in this library, but this is not yet supported by the Distance Matirx API.
dm.Origins = this.Origins.ToArray();
dm.Destinations = this.Destinations.ToArray();
}
}
catch (Exception ex)
{
response.ResourceSets[0].Resources[0] = new DistanceMatrix()
{
ErrorMessage = "There was an issue downloading and serializing the results. Results Download URL: " + status.ResultUrl
};
}
}
else if (!status.IsAccepted)
{
response.ResourceSets[0].Resources[0] = new DistanceMatrix()
{
ErrorMessage = "The request was not accepted."
};
}
else if (!string.IsNullOrEmpty(status.ErrorMessage))
{
response.ResourceSets[0].Resources[0] = new DistanceMatrix()
{
ErrorMessage = status.ErrorMessage
};
}
}
return(response);
}
else if (response.ResourceSets[0].Resources[0] is DistanceMatrix && (response.ResourceSets[0].Resources[0] as DistanceMatrix).Results != null)
{
DistanceMatrix dm = response.ResourceSets[0].Resources[0] as DistanceMatrix;
//TODO: Overwrite origins/destinations for now as we have added support for geocoding in this library, but this is not yet supported by the Distance Matirx API.
dm.Origins = this.Origins.ToArray();
dm.Destinations = this.Destinations.ToArray();
if (dm.Results != null)
{
return(response);
}
else if (!string.IsNullOrEmpty(dm.ErrorMessage))
{
var msg = "Error: " + (response.ResourceSets[0].Resources[0] as DistanceMatrix).ErrorMessage;
throw new Exception(msg);
}
}
else if (response.ResourceSets[0].Resources[0] is DistanceMatrixAsyncStatus && !string.IsNullOrEmpty((response.ResourceSets[0].Resources[0] as DistanceMatrixAsyncStatus).ErrorMessage))
{
var msg = "Error: " + (response.ResourceSets[0].Resources[0] as DistanceMatrixAsyncStatus).ErrorMessage;
throw new Exception(msg);
}
else if (response.ResourceSets[0].Resources[0] is DistanceMatrix && !string.IsNullOrEmpty((response.ResourceSets[0].Resources[0] as DistanceMatrix).ErrorMessage))
{
var msg = "Error: " + (response.ResourceSets[0].Resources[0] as DistanceMatrix).ErrorMessage;
throw new Exception(msg);
}
}
return(null);
}
