public void ProvideFault(Exception exception, MessageVersion version, ref Message fault)
{
if (exception.GetType() == typeof(HttpException))
{
var httpException = (HttpException)exception;
var inResponse = WebOperationContext.Current.IncomingRequest;
var webGetAttribute = GetCurrentAttribute(inResponse);
if (webGetAttribute == null)
{
throw new RestException();
}
var currentResponseFormat = webGetAttribute.ResponseFormat;
var restErrorMessage = new RestErrorMessage(httpException.Data, httpException.GetHttpCode(), httpException.ErrorCode);
fault = CreateMessage(restErrorMessage, version, currentResponseFormat);
fault.Properties.Add(WebBodyFormatMessageProperty.Name, GetBodyFormat(currentResponseFormat));
var outResponse = WebOperationContext.Current.OutgoingResponse;
outResponse.StatusCode = (HttpStatusCode)httpException.GetHttpCode();
outResponse.ContentType = string.Format("application/{0}", currentResponseFormat);
}
else
{
throw new RestException();
}
}
private static Message CreateMessage(RestErrorMessage restErrorMessage, MessageVersion version, WebMessageFormat webMessageFormat)
{
if (webMessageFormat == WebMessageFormat.Json)
{
return(Message.CreateMessage(version, null, restErrorMessage, new DataContractJsonSerializer(restErrorMessage.GetType())));
}
if (webMessageFormat == WebMessageFormat.Xml)
{
return(Message.CreateMessage(version, null, restErrorMessage));
}
return(null);
}