WebContentFormat GetFormatForContentType(string contentType)
{
WebContentFormat messageFormat;
if (TryGetContentTypeMapping(contentType, out messageFormat) &&
(messageFormat != WebContentFormat.Default))
{
if (DiagnosticUtility.ShouldTraceInformation)
{
if (string.IsNullOrEmpty(contentType))
{
contentType = "<null>";
}
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.RequestFormatSelectedFromContentTypeMapper,
SR2.GetString(SR2.TraceCodeRequestFormatSelectedFromContentTypeMapper, messageFormat.ToString(), contentType));
}
return(messageFormat);
}
// Don't pass on null content types to IsContentTypeSupported methods -- they might throw.
// If null content type isn't already mapped, return the default format of Raw.
if (contentType == null)
{
messageFormat = WebContentFormat.Raw;
}
else if (JsonMessageEncoder.IsContentTypeSupported(contentType))
{
messageFormat = WebContentFormat.Json;
}
else if (TextMessageEncoder.IsContentTypeSupported(contentType))
{
messageFormat = WebContentFormat.Xml;
}
else
{
messageFormat = WebContentFormat.Raw;
}
if (DiagnosticUtility.ShouldTraceInformation)
{
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.RequestFormatSelectedByEncoderDefaults,
SR2.GetString(SR2.TraceCodeRequestFormatSelectedByEncoderDefaults, messageFormat.ToString(), contentType));
}
return(messageFormat);
}
public override bool IsContentTypeSupported(string contentType)
{
if (contentType == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contentType");
}
WebContentFormat messageFormat;
if (TryGetContentTypeMapping(contentType, out messageFormat) &&
(messageFormat != WebContentFormat.Default))
{
return(true);
}
return(RawMessageEncoder.IsContentTypeSupported(contentType) || JsonMessageEncoder.IsContentTypeSupported(contentType) || TextMessageEncoder.IsContentTypeSupported(contentType));
}