protected override GetBingMapsPreviewResponse InternalExecute()
{
string str = "Function start";
GetBingMapsPreviewResponse result;
try
{
string requestString = GetBingMapsPreview.BuildImageRequestString(this.request.Latitude, this.request.Longitude, this.request.LocationName, this.request.MapWidth, this.request.MapHeight, this.request.MapControlKey);
str = "Executing web request";
using (HttpWebResponse httpWebResponse = this.ExecuteWebRequest(requestString))
{
if (httpWebResponse == null)
{
throw new OwaException("BingMapsRequestNullError");
}
str = "Inspecting response status code";
if (httpWebResponse.StatusCode != HttpStatusCode.OK)
{
result = GetBingMapsPreview.CreateErrorResponse("WebResponse status code: " + httpWebResponse.StatusCode, httpWebResponse.StatusDescription);
}
else
{
if (httpWebResponse.ContentLength > 204800L)
{
throw new OwaException("ImageMaxStreamSizeExceededError");
}
str = "Getting attachment data from the response";
int imageDataSize = 0;
Stream responseStream = httpWebResponse.GetResponseStream();
if (responseStream == null)
{
throw new OwaException("WebResponseStreamNullError");
}
byte[] contentFromStream = GetBingMapsPreview.GetContentFromStream(responseStream, 204800, out imageDataSize);
string imageData = Convert.ToBase64String(contentFromStream);
str = "Building response with encoded image data string";
result = new GetBingMapsPreviewResponse
{
ImageData = imageData,
ImageDataSize = imageDataSize,
ImageDataType = "image/jpeg"
};
}
}
}
catch (OwaException exception)
{
result = GetBingMapsPreview.CreateErrorResponse(exception);
}
catch (NullReferenceException ex)
{
result = GetBingMapsPreview.CreateErrorResponse("NullReferenceException", "Null reference exception in GetBingMapsPreview InternalExecute. The last executed step was: " + str + ". Details: " + ex.Message);
}
return(result);
}
private static GetBingMapsPreviewResponse CreateErrorResponse(OwaException exception)
{
if (exception.Message == "ImageMaxStreamSizeExceededError")
{
return(GetBingMapsPreview.CreateErrorResponse("ImageMaxStreamSizeExceededError", "The image size exceeded the maximum size"));
}
if (exception.Message == "ImageAttachmentDataNullError")
{
return(GetBingMapsPreview.CreateErrorResponse("ImageAttachmentDataNullError", "Image attachment data was null"));
}
if (exception.Message == "CreateAttachmentRequestError")
{
return(GetBingMapsPreview.CreateErrorResponse("CreateAttachmentRequestError", "Error building CreateAttachmentRequest"));
}
if (exception.Message == "CreateAttachmentResultNullError")
{
return(GetBingMapsPreview.CreateErrorResponse("CreateAttachmentResultNullError", "No response message from CreateAttachmentHelper.CreateAttachment"));
}
if (exception.Message == "BingMapsRequestNullError")
{
return(GetBingMapsPreview.CreateErrorResponse("BingMapsRequestNullError", "Request to Bing Maps to get the map image returned null"));
}
if (exception.Message == "WebRequestNullError")
{
return(GetBingMapsPreview.CreateErrorResponse("WebRequestNullError", "The HttpWebRequest created to query Bing Maps was null"));
}
if (exception.Message == "WebResponseStreamNullError")
{
return(GetBingMapsPreview.CreateErrorResponse("WebResponseStreamNullError", "The response stream for the maps image was null"));
}
if (exception.InnerException != null)
{
return(GetBingMapsPreview.CreateErrorResponse(exception.Message, exception.InnerException.Message));
}
return(GetBingMapsPreview.CreateErrorResponse(exception.Message, exception.ToString()));
}