private IAsyncResult MakeServerCall <T>(HttpWebRequest request, Action <T, IGSPServiceResponse> action, bool lockClient, bool noErrorLog = false)
{
var requestUri = request.RequestUri.ToString();
return(request.BeginGetResponse(result =>
{
try
{
var req = result.AsyncState as HttpWebRequest;
if (req == null)
{
return;
}
var response = req.EndGetResponseNoException(result) as HttpWebResponse;
//Get the json payload from the response
string json = "";
Stream responseStream = response.GetResponseStream();
if (responseStream != null)
{
using (var sr = new StreamReader(responseStream))
json = sr.ReadToEnd();
}
//Create a GSPServiceResponse object
var serviceResponse = new GSPServiceResponse(response, json);
// Show error dialog if error occured and no parameter is supplied (parameter-based errors is handled in UI context)
if (noErrorLog && serviceResponse.HasErrors)
{
//Failed to log to server. This could mean that we have a network failure.
//TODO: Try to log to isolatedstorage and then log back to server when network is available again
//TODO::Mathias
Debug.Assert(false, "Failed to log to server");
}
else if (serviceResponse.HasErrors && string.IsNullOrEmpty(serviceResponse.ApiErrorCode) && string.IsNullOrEmpty(serviceResponse.ApiErrorParamName))
{
result = LogToServer <T>(action, lockClient, result, serviceResponse.InnerException, requestUri);
if (lockClient)
{
ThreadHelper.ExecuteOnUI(() =>
{
try
{
ShowDialog(Localization.Resources.ServiceErrorDialog_Title, serviceResponse.ErrorMessage, serviceResponse.StatusDescription, false, null);
//Dialog.ShowDialog(Localization.Resources.ServiceErrorDialog_Title, serviceResponse.ErrorMessage, serviceResponse.StatusDescription, false, null);
}
catch (Exception innerEx)
{
throw new Exception("Exception in anonymous callback #1, requestUrl: " + requestUri, innerEx);
}
});
}
return;
}
if (serviceResponse.HasErrors)
{
action.Invoke(default(T), serviceResponse);
}
else
{
action.Invoke(_json.DeserializeJson <T>(json), serviceResponse);
}
}
catch (Exception ex)
{
ThreadHelper.ExecuteOnUI(() =>
{
try
{
var innerEx = ex.InnerException as WebException;
string localUri = string.Empty;
if (innerEx != null)
{
localUri = innerEx.Response.ResponseUri.LocalPath;
}
string finalErrorMessage = string.Empty;
if (!string.IsNullOrEmpty(localUri))
{
finalErrorMessage += localUri + "\n\n";
}
finalErrorMessage += ex.ToString();
ShowDialog(Localization.Resources.ServiceErrorDialog_Title, "Error when calling server API", finalErrorMessage, false, null);
}
catch (Exception innerEx)
{
throw new Exception("Exception in anonymous callback #2, requestUrl: " + requestUri, innerEx);
}
finally
{
if (noErrorLog == false)
{
LogToServer <T>(action, lockClient, result, ex, requestUri);
}
}
});
//System.Diagnostics.Debug.Assert(false);
}
finally
{
if (lockClient)
{
ThreadHelper.ExecuteOnUI(() => GSPApplicationService.Current.AppState.DequeueBusy());
}
}
}, request));
}
