public override System.Threading.Tasks.Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == typeof(HttpError))
{
HttpError error = (HttpError)value;
OperationOutcome opOutcome = new OperationOutcome();
List <string> locations = new List <string>();
if (!string.IsNullOrEmpty(error.StackTrace))
{
locations.Add(error.StackTrace);
}
opOutcome.Issue.Add(new OperationOutcome.IssueComponent()
{
Severity = OperationOutcome.IssueSeverity.Fatal,
Diagnostics = error.Message,
Code = OperationOutcome.IssueType.Exception,
Location = locations
});
string logMessage = string.Format("An error with FHIR STU3 ocurred: {0}\nError Detail: {1}\n{2}\n{3}", error.Message, error.MessageDetail, error.ExceptionMessage, error.StackTrace);
Log.For(this).Error(logMessage);
value = opOutcome;
type = opOutcome.GetType();
}
// Return content-type was set by SetDefaultContentType(), just check if that determined that it should be XML
bool returnXml = ContentType.XML_CONTENT_HEADERS.Contains(content.Headers.ContentType.MediaType);
return(System.Threading.Tasks.Task.Factory.StartNew(() =>
{
if (type == typeof(Resource) || type.IsSubclassOf(typeof(Resource)))
{
if (returnXml)
{
XmlWriter writer = new XmlTextWriter(writeStream, Encoding.UTF8);
FhirSerializer.SerializeResource((Resource)value, writer);
writer.Flush();
}
else
{
StreamWriter writer = new StreamWriter(writeStream);
JsonWriter jsonwriter = new JsonTextWriter(writer);
Resource resource = (Resource)value;
FhirSerializer.SerializeResource(resource, jsonwriter);
writer.Flush();
}
}
else
{
throw new NotSupportedException(String.Format("Cannot write unsupported type {0} to body", type.Name));
}
}));
}