public override void WriteToStream(Type type, object value, Stream stream, HttpContentHeaders contentHeaders)
{
BufferedMediaTypeFormatter innerFormatter = InnerBufferedFormatter;
MediaTypeHeaderValue contentType = contentHeaders == null
? null
: contentHeaders.ContentType;
_innerTracer.TraceWriter.TraceBeginEnd(
_innerTracer.Request,
TraceCategories.FormattingCategory,
TraceLevel.Info,
_innerTracer.InnerFormatter.GetType().Name,
OnWriteToStreamMethodName,
beginTrace: (tr) =>
{
tr.Message = Error.Format(
SRResources.TraceWriteToStreamMessage,
FormattingUtilities.ValueToString(value, CultureInfo.CurrentCulture),
type.Name,
contentType == null ? SRResources.TraceNoneObjectMessage : contentType.ToString());
},
execute: () =>
{
innerFormatter.WriteToStream(type, value, stream, contentHeaders);
},
endTrace: null,
errorTrace: null);
}
public override object ReadFromStream(Type type, Stream stream, HttpContent content, IFormatterLogger formatterLogger)
{
BufferedMediaTypeFormatter innerFormatter = InnerFormatter as BufferedMediaTypeFormatter;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
MediaTypeHeaderValue contentType = contentHeaders == null ? null : contentHeaders.ContentType;
object value = null;
_innerTracer.TraceWriter.TraceBeginEnd(
_innerTracer.Request,
TraceCategories.FormattingCategory,
TraceLevel.Info,
_innerTracer.InnerFormatter.GetType().Name,
OnReadFromStreamMethodName,
beginTrace: (tr) =>
{
tr.Message = Error.Format(
SRResources.TraceReadFromStreamMessage,
type.Name,
contentType == null ? SRResources.TraceNoneObjectMessage : contentType.ToString());
},
execute: () =>
{
value = innerFormatter.ReadFromStream(type, stream, content, formatterLogger);
},
endTrace: (tr) =>
{
tr.Message = Error.Format(
SRResources.TraceReadFromStreamValueMessage,
FormattingUtilities.ValueToString(value, CultureInfo.CurrentCulture));
},
errorTrace: null);
return(value);
}
public BufferedMediaTypeFormatterTracer(BufferedMediaTypeFormatter innerFormatter, ITraceWriter traceWriter, HttpRequestMessage request)
{
_innerTracer = new MediaTypeFormatterTracer(innerFormatter, traceWriter, request);
// copy non-overridable members from inner formatter
_innerTracer.CopyNonOverriableMembersFromInner(this);
BufferSize = innerFormatter.BufferSize;
}
public void Decorator_GetInner_On_BufferedMediaTypeFormatterTracer_Returns_BufferedMediaTypeFormatter()
{
// Arrange
BufferedMediaTypeFormatter expectedInner = new Mock <BufferedMediaTypeFormatter>().Object;
BufferedMediaTypeFormatterTracer productUnderTest = new BufferedMediaTypeFormatterTracer(expectedInner, new TestTraceWriter(), new HttpRequestMessage());
// Act
BufferedMediaTypeFormatter actualInner = Decorator.GetInner(productUnderTest as BufferedMediaTypeFormatter);
// Assert
Assert.Same(expectedInner, actualInner);
}
public static MediaTypeFormatter CreateTracer(MediaTypeFormatter formatter, ITraceWriter traceWriter, HttpRequestMessage request)
{
// If we have been asked to wrap a tracer around a formatter, it could be
// already wrapped, and there is nothing to do. But if we see it is a tracer
// that is not associated with a request, we wrap it into a new tracer that
// does have a request. The only formatter tracers without requests are the
// ones in the default MediaTypeFormatterCollection in the HttpConfiguration.
IFormatterTracer formatterTracer = formatter as IFormatterTracer;
if (formatterTracer != null)
{
if (formatterTracer.Request == request)
{
return(formatter);
}
formatter = formatterTracer.InnerFormatter;
}
MediaTypeFormatter tracer = null;
XmlMediaTypeFormatter xmlFormatter = formatter as XmlMediaTypeFormatter;
JsonMediaTypeFormatter jsonFormatter = formatter as JsonMediaTypeFormatter;
FormUrlEncodedMediaTypeFormatter formUrlFormatter = formatter as FormUrlEncodedMediaTypeFormatter;
BufferedMediaTypeFormatter bufferedFormatter = formatter as BufferedMediaTypeFormatter;
// We special-case Xml, Json and FormUrlEncoded formatters because we expect to be able
// to find them with IsAssignableFrom in the MediaTypeFormatterCollection.
if (xmlFormatter != null)
{
tracer = new XmlMediaTypeFormatterTracer(xmlFormatter, traceWriter, request);
}
else if (jsonFormatter != null)
{
tracer = new JsonMediaTypeFormatterTracer(jsonFormatter, traceWriter, request);
}
else if (formUrlFormatter != null)
{
tracer = new FormUrlEncodedMediaTypeFormatterTracer(formUrlFormatter, traceWriter, request);
}
else if (bufferedFormatter != null)
{
tracer = new BufferedMediaTypeFormatterTracer(bufferedFormatter, traceWriter, request);
}
else
{
tracer = new MediaTypeFormatterTracer(formatter, traceWriter, request);
}
return(tracer);
}
public void BufferSize_Uses_Inners()
{
// Arrange
HttpRequestMessage request = new HttpRequestMessage();
Mock <BufferedMediaTypeFormatter> mockFormatter = new Mock <BufferedMediaTypeFormatter>()
{
CallBase = true
};
BufferedMediaTypeFormatter innerFormatter = mockFormatter.Object;
innerFormatter.BufferSize = innerFormatter.BufferSize + 1;
BufferedMediaTypeFormatterTracer tracer = new BufferedMediaTypeFormatterTracer(innerFormatter, new TestTraceWriter(), request);
// Act & Assert
Assert.Equal(innerFormatter.BufferSize, tracer.BufferSize);
}
