|
public static GetErrorResponseDtoType ( object request ) : |
||
| request | object | |
| return | ||
/// <summary>
/// Create an instance of the service response dto type and inject it with the supplied responseStatus
/// </summary>
/// <param name="request"></param>
/// <param name="responseStatus"></param>
/// <returns></returns>
public static object CreateResponseDto(object request, ResponseStatus responseStatus)
{
// Predict the Response message type name
var responseDtoType = WebRequestUtils.GetErrorResponseDtoType(request);
var responseDto = responseDtoType.CreateInstance();
if (responseDto == null)
{
return(null);
}
// For faster serialization of exceptions, services should implement IHasResponseStatus
var hasResponseStatus = responseDto as IHasResponseStatus;
if (hasResponseStatus != null)
{
hasResponseStatus.ResponseStatus = responseStatus;
}
else
{
var responseStatusProperty = responseDtoType.GetProperty(ResponseStatusPropertyName);
if (responseStatusProperty != null)
{
// Set the ResponseStatus
responseStatusProperty.SetProperty(responseDto, responseStatus);
}
}
// Return an Error DTO with the exception populated
return(responseDto);
}
private void ThrowResponseTypeException <TResponse>(HttpResponseMessage httpRes, object request, string requestUri, object response)
{
var responseType = WebRequestUtils.GetErrorResponseDtoType <TResponse>(request);
Action <HttpResponseMessage, object, string, object> responseHandler;
if (!ResponseHandlers.TryGetValue(responseType, out responseHandler))
{
var mi = GetType().GetInstanceMethod("ThrowWebServiceException")
.MakeGenericMethod(new[] { responseType });
responseHandler = (Action <HttpResponseMessage, object, string, object>)mi.CreateDelegate(
typeof(Action <HttpResponseMessage, object, string, object>), this);
ResponseHandlers[responseType] = responseHandler;
}
responseHandler(httpRes, request, requestUri, response);
}
private void ThrowResponseTypeException <TResponse>(object request, Exception ex, string requestUri)
{
if (request == null)
{
ThrowWebServiceException <TResponse>(ex, requestUri);
return;
}
var responseType = WebRequestUtils.GetErrorResponseDtoType(request);
Action <Exception, string> responseHandler;
if (!ResponseHandlers.TryGetValue(responseType, out responseHandler))
{
var mi = GetType().GetMethod("ThrowWebServiceException",
BindingFlags.Instance | BindingFlags.NonPublic)
.MakeGenericMethod(new[] { responseType });
responseHandler = (Action <Exception, string>)Delegate.CreateDelegate(
typeof(Action <Exception, string>), this, mi);
ResponseHandlers[responseType] = responseHandler;
}
responseHandler(ex, requestUri);
}
private void HandleResponseError <TResponse>(Exception exception, AsyncState <TResponse> state)
{
var webEx = exception as WebException;
if (PclExportClient.Instance.IsWebException(webEx))
{
var errorResponse = (HttpWebResponse)webEx.Response;
Log.Error(webEx);
if (Log.IsDebugEnabled)
{
Log.DebugFormat("Status Code : {0}", errorResponse.StatusCode);
Log.DebugFormat("Status Description : {0}", errorResponse.StatusDescription);
}
var serviceEx = new WebServiceException(errorResponse.StatusDescription)
{
StatusCode = (int)errorResponse.StatusCode,
StatusDescription = errorResponse.StatusDescription,
ResponseHeaders = errorResponse.Headers
};
try
{
using (var stream = errorResponse.GetResponseStream())
{
var bytes = stream.ReadFully();
serviceEx.ResponseBody = bytes.FromUtf8Bytes();
var errorResponseType = WebRequestUtils.GetErrorResponseDtoType <TResponse>(state.Request);
if (stream.CanSeek)
{
PclExport.Instance.ResetStream(stream);
serviceEx.ResponseDto = this.StreamDeserializer(errorResponseType, stream);
}
else //Android
{
using (var ms = MemoryStreamFactory.GetStream(bytes))
{
serviceEx.ResponseDto = this.StreamDeserializer(errorResponseType, ms);
}
}
state.HandleError(serviceEx.ResponseDto, serviceEx);
}
}
catch (Exception innerEx)
{
// Oh, well, we tried
Log.Debug(string.Format("WebException Reading Response Error: {0}", innerEx.Message), innerEx);
state.HandleError(default(TResponse), new WebServiceException(errorResponse.StatusDescription, innerEx)
{
StatusCode = (int)errorResponse.StatusCode,
StatusDescription = errorResponse.StatusDescription,
ResponseHeaders = errorResponse.Headers
});
}
return;
}
var authEx = exception as AuthenticationException;
if (authEx != null)
{
var customEx = WebRequestUtils.CreateCustomException(state.Url, authEx);
Log.Debug(string.Format("AuthenticationException: {0}", customEx.Message), customEx);
state.HandleError(default(TResponse), authEx);
}
Log.Debug(string.Format("Exception Reading Response Error: {0}", exception.Message), exception);
state.HandleError(default(TResponse), exception);
CancelAsyncFn = null;
}
private Exception HandleResponseError <TResponse>(Exception exception, string url, object request)
{
var webEx = exception as WebException;
if (PclExportClient.Instance.IsWebException(webEx))
{
var errorResponse = (HttpWebResponse)webEx.Response;
Log.Error(webEx);
if (Log.IsDebugEnabled)
{
Log.Debug($"Status Code : {errorResponse.StatusCode}");
Log.Debug($"Status Description : {errorResponse.StatusDescription}");
}
var serviceEx = new WebServiceException(errorResponse.StatusDescription)
{
StatusCode = (int)errorResponse.StatusCode,
StatusDescription = errorResponse.StatusDescription,
ResponseHeaders = errorResponse.Headers
};
try
{
using var stream = errorResponse.ResponseStream();
var bytes = stream.ReadFully();
serviceEx.ResponseBody = bytes.FromUtf8Bytes();
var errorResponseType = WebRequestUtils.GetErrorResponseDtoType <TResponse>(request);
if (stream.CanSeek)
{
PclExport.Instance.ResetStream(stream);
serviceEx.ResponseDto = this.StreamDeserializer(errorResponseType, stream);
}
else //Android
{
using var ms = MemoryStreamFactory.GetStream(bytes);
serviceEx.ResponseDto = this.StreamDeserializer(errorResponseType, ms);
}
return(serviceEx);
}
catch (Exception innerEx)
{
// Oh, well, we tried
Log.Debug($"WebException Reading Response Error: {innerEx.Message}", innerEx);
return(new WebServiceException(errorResponse.StatusDescription, innerEx)
{
StatusCode = (int)errorResponse.StatusCode,
StatusDescription = errorResponse.StatusDescription,
ResponseHeaders = errorResponse.Headers
});
}
}
if (exception is AuthenticationException authEx)
{
var customEx = WebRequestUtils.CreateCustomException(url, authEx);
Log.Debug($"AuthenticationException: {customEx.Message}", customEx);
return(authEx);
}
Log.Debug($"Exception Reading Response Error: {exception.Message}", exception);
return(exception);
}
