public MediaTypeFormatter SelectWriteFormatter(Type type, FormatterContext formatterContext, IEnumerable <MediaTypeFormatter> formatters, out MediaTypeHeaderValue mediaType)
{
string descriptFormatterContext = GetDescriptFormatterContext(formatterContext);
Console.WriteLine("Selecting Write Formatter for type {0} based on formatter context: {1}", type.Name, descriptFormatterContext);
var mediaTypeFormatter = _FormatterSelector.SelectWriteFormatter(type, formatterContext, formatters, out mediaType);
Console.WriteLine("Selected Write Formatter : {0} {1}", mediaTypeFormatter.GetType().Name, mediaType);
return(mediaTypeFormatter);
}
public static Tuple <MediaTypeFormatter, MediaTypeHeaderValue> Negotiate <T>(
this MediaTypeFormatterCollection formatters,
HttpRequestMessage requestMessage)
{
var formatSelector = new FormatterSelector();
MediaTypeHeaderValue mediaType = null;
var response = new HttpResponseMessage()
{
RequestMessage = requestMessage
};
var formatter = formatSelector.SelectWriteFormatter(
typeof(T),
new FormatterContext(response, false),
formatters,
out mediaType);
return
(new Tuple <MediaTypeFormatter, MediaTypeHeaderValue>(
formatter, mediaType
));
/*
* Usage:
* public HttpResponseMessage Get() {
*
* var response = new HttpResponseMessage();
*
* var contact = new Contact() {FirstName = "Joe", LastName = "Brown"};
*
* var mediaInfo = Configuration.Formatters.Negotiate<Contact>(Request);
*
* response.Content = new SimpleObjectContent<Contact>(contact, mediaInfo.Item1);
* response.Content.Headers.ContentType = mediaInfo.Item2;
*
* return response;
* }
*/
}
