// Creates wrapping tracers for all HttpParameterBindings
HttpActionBinding IActionValueBinder.GetBinding(HttpActionDescriptor actionDescriptor)
{
HttpActionBinding actionBinding = _innerBinder.GetBinding(actionDescriptor);
if (actionBinding == null)
{
return(null);
}
HttpParameterBinding[] parameterBindings = actionBinding.ParameterBindings;
HttpParameterBinding[] newParameterBindings = new HttpParameterBinding[parameterBindings.Length];
for (int i = 0; i < newParameterBindings.Length; i++)
{
HttpParameterBinding parameterBinding = parameterBindings[i];
// Intercept FormatterParameterBinding to replace its formatters
FormatterParameterBinding formatterParameterBinding = parameterBinding as FormatterParameterBinding;
newParameterBindings[i] = formatterParameterBinding != null
? (HttpParameterBinding) new FormatterParameterBindingTracer(formatterParameterBinding, _traceWriter)
: (HttpParameterBinding) new HttpParameterBindingTracer(parameterBinding, _traceWriter);
}
// Replace the inner HttpActionBinding's parameter bindings with our tracing versions.
// This allows each individual parameter binding to trace.
actionBinding.ParameterBindings = newParameterBindings;
// Then create an HttpActionBindingTracer to wrap the actual HttpActionBinding
if (!(actionBinding is HttpActionBindingTracer))
{
return(new HttpActionBindingTracer(actionBinding, _traceWriter));
}
return(actionBinding);
}
private void Bind(string methodName)
{
//创建FormatterParameterBinding对象
MethodInfo method = typeof(ContactsController).GetMethod(methodName);
HttpActionDescriptor actionDescriptor = new ReflectedHttpActionDescriptor(this.ControllerContext.ControllerDescriptor, method);
HttpParameterDescriptor parameterDescriptor = actionDescriptor.GetParameters().First();
MediaTypeFormatter[] formatters = new MediaTypeFormatter[] { new JsonMediaTypeFormatter() };
FormatterParameterBinding parameterBinding = new FormatterParameterBinding(parameterDescriptor, formatters, null);
//创建HttpActionBinding并执行
HttpActionBinding actionBinding = new HttpActionBinding(actionDescriptor, new FormatterParameterBinding[] { parameterBinding });
HttpActionContext actionContext = new HttpActionContext(this.ControllerContext, actionDescriptor);
try
{
actionBinding.ExecuteBindingAsync(actionContext, CancellationToken.None).Wait();
//获取绑定参数对象并打印相关数据
Contact contact = (Contact)actionContext.ActionArguments["contact"];
Console.WriteLine("{0,-12}: {1}", "Name", contact.Name);
Console.WriteLine("{0,-12}: {1}", "Phone No.", contact.PhoneNo);
Console.WriteLine("{0,-12}: {1}", "EmailAddress", contact.EmailAddress);
Console.WriteLine("{0,-12}: {1}", "Address", contact.Address);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public void Decorator_GetInner_On_FormatterParameterBindingTracer_Returns_FormatterParameterBinding()
{
// Arrange
HttpParameterDescriptor httpParameterDescriptor =
new Mock <HttpParameterDescriptor>().Object;
MediaTypeFormatterCollection mediaTypeFormatterCollection =
new MediaTypeFormatterCollection();
FormatterParameterBinding expectedInner = new FormatterParameterBinding(
httpParameterDescriptor,
mediaTypeFormatterCollection,
null
);
FormatterParameterBindingTracer productUnderTest = new FormatterParameterBindingTracer(
expectedInner,
new TestTraceWriter()
);
// Act
FormatterParameterBinding actualInner = Decorator.GetInner(
productUnderTest as FormatterParameterBinding
);
// Assert
Assert.Same(expectedInner, actualInner);
}
public void BindWithFormatter()
{
HttpParameterDescriptor param = CreateParameterDescriptor();
FormatterParameterBinding binding = (FormatterParameterBinding)param.BindWithFormatter();
Assert.NotNull(binding);
}
public FormatterParameterBindingTracer(FormatterParameterBinding innerBinding, ITraceWriter traceWriter) : base(innerBinding.Descriptor, innerBinding.Formatters, innerBinding.BodyModelValidator)
{
Contract.Assert(innerBinding != null);
Contract.Assert(traceWriter != null);
_innerBinding = innerBinding;
_traceWriter = traceWriter;
}
public void BindWithFormatter_Formatter_Array()
{
HttpParameterDescriptor param = CreateParameterDescriptor();
MediaTypeFormatter formatter1 = new XmlMediaTypeFormatter();
MediaTypeFormatter formatter2 = new JsonMediaTypeFormatter();
FormatterParameterBinding binding = (FormatterParameterBinding)param.BindWithFormatter(formatter1, formatter2);
Assert.NotNull(binding);
MediaTypeFormatter[] formatters = binding.Formatters.ToArray();
Assert.Equal(2, formatters.Length);
Assert.Equal(formatter1, formatters[0]);
Assert.Equal(formatter2, formatters[1]);
}
public void BindWithFormatter_Formatters_and_Validator()
{
HttpParameterDescriptor param = CreateParameterDescriptor();
IBodyModelValidator bodyModelValidator = new Mock <IBodyModelValidator>().Object;
MediaTypeFormatter formatter1 = new XmlMediaTypeFormatter();
MediaTypeFormatter formatter2 = new JsonMediaTypeFormatter();
FormatterParameterBinding binding = (FormatterParameterBinding)param.BindWithFormatter(new List <MediaTypeFormatter> {
formatter1, formatter2
}, bodyModelValidator);
Assert.NotNull(binding);
Assert.Equal(bodyModelValidator, binding.BodyModelValidator);
MediaTypeFormatter[] formatters = binding.Formatters.ToArray();
Assert.Equal(2, formatters.Length);
Assert.Equal(formatter1, formatters[0]);
Assert.Equal(formatter2, formatters[1]);
}
// Creates wrapping tracers for all HttpParameterBindings
HttpActionBinding IActionValueBinder.GetBinding(HttpActionDescriptor actionDescriptor)
{
HttpActionBinding actionBinding = _innerBinder.GetBinding(actionDescriptor);
HttpParameterBinding[] parameterBindings = actionBinding.ParameterBindings;
HttpParameterBinding[] newParameterBindings = new HttpParameterBinding[parameterBindings.Length];
for (int i = 0; i < newParameterBindings.Length; i++)
{
HttpParameterBinding parameterBinding = parameterBindings[i];
// Itercept FormatterParameterBinding to replace its formatters
FormatterParameterBinding formatterParameterBinding = parameterBinding as FormatterParameterBinding;
newParameterBindings[i] = formatterParameterBinding != null
? (HttpParameterBinding) new FormatterParameterBindingTracer(formatterParameterBinding, _traceWriter)
: (HttpParameterBinding) new HttpParameterBindingTracer(parameterBinding, _traceWriter);
}
HttpActionBinding newActionBinding = new HttpActionBinding(actionDescriptor, newParameterBindings);
return(newActionBinding);
}
public void ExecuteBindingAsync_Traces_And_Invokes_Inner_ReadAsync()
{
// Arrange
Mock <HttpParameterDescriptor> mockParamDescriptor = new Mock <HttpParameterDescriptor>()
{
CallBase = true
};
mockParamDescriptor.Setup(d => d.ParameterName).Returns("paramName");
mockParamDescriptor.Setup(d => d.ParameterType).Returns(typeof(string));
FormatterParameterBinding binding = new FormatterParameterBinding(mockParamDescriptor.Object, new MediaTypeFormatterCollection(), null);
TestTraceWriter traceWriter = new TestTraceWriter();
FormatterParameterBindingTracer tracer = new FormatterParameterBindingTracer(binding, traceWriter);
HttpActionContext actionContext = ContextUtil.CreateActionContext();
actionContext.Request.Content = new StringContent("true");
actionContext.Request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
ModelMetadataProvider metadataProvider = new EmptyModelMetadataProvider();
TraceRecord[] expectedTraces = new TraceRecord[]
{
new TraceRecord(actionContext.Request, TraceCategories.ModelBindingCategory, TraceLevel.Info)
{
Kind = TraceKind.Begin, Operation = "ExecuteBindingAsync"
},
new TraceRecord(actionContext.Request, TraceCategories.ModelBindingCategory, TraceLevel.Info)
{
Kind = TraceKind.End, Operation = "ExecuteBindingAsync"
}
};
// Act
Task task = tracer.ExecuteBindingAsync(metadataProvider, actionContext, CancellationToken.None);
task.Wait();
// Assert
Assert.Equal <TraceRecord>(expectedTraces, traceWriter.Traces, new TraceRecordComparer());
Assert.Equal("True", actionContext.ActionArguments["paramName"]);
}
public FormatterParameterBindingTracer(FormatterParameterBinding innerBinding, ITraceWriter traceWriter) : base(innerBinding.Descriptor, innerBinding.Formatters, innerBinding.BodyModelValidator)
{
_innerBinding = innerBinding;
_traceWriter = traceWriter;
}
