public Task<HttpResponseMessage> InvokeActionAsync(HttpActionContext actionContext, CancellationToken cancellationToken)
{
ReflectedHttpActionDescriptor actionDescriptor = (ReflectedHttpActionDescriptor)actionContext.ActionDescriptor;
//提取参数数组
List<object> arguments = new List<object>();
ParameterInfo[] parameters = actionDescriptor.MethodInfo.GetParameters();
for (int i = 0; i < parameters.Length; i++)
{
string parameterName = parameters[i].Name;
arguments.Add(actionContext.ActionArguments[parameterName]);
}
//利用ActionExecutor执行目标Action方法
Task<object> task = new ActionExecutor(actionDescriptor.MethodInfo).Execute(actionContext.ControllerContext.Controller, arguments.ToArray());
//创建HttpResponseMessage
object result = task.Result;
HttpResponseMessage response = result as HttpResponseMessage;
if (null == response)
{
//利用"媒体类型协商机制"创建MediaTypeFormatter
IContentNegotiator negotiator = actionContext.ControllerContext.Configuration.Services.GetContentNegotiator();
MediaTypeFormatter formatter = negotiator.Negotiate(result.GetType(), actionContext.Request, actionContext.ControllerContext.Configuration.Formatters).Formatter;
response = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ObjectContent(result.GetType(), result, formatter)
};
}
//创建并返回Task<HttpResponseMessage>
TaskCompletionSource<HttpResponseMessage> completionSource = new TaskCompletionSource<HttpResponseMessage>();
completionSource.SetResult(response);
return completionSource.Task;
}
public Task <HttpResponseMessage> InvokeActionAsync(HttpActionContext actionContext, CancellationToken cancellationToken)
{
ReflectedHttpActionDescriptor actionDescriptor = (ReflectedHttpActionDescriptor)actionContext.ActionDescriptor;
//提取参数数组
List <object> arguments = new List <object>();
ParameterInfo[] parameters = actionDescriptor.MethodInfo.GetParameters();
for (int i = 0; i < parameters.Length; i++)
{
string parameterName = parameters[i].Name;
arguments.Add(actionContext.ActionArguments[parameterName]);
}
//利用ActionExecutor执行目标Action方法
Task <object> task = new ActionExecutor(actionDescriptor.MethodInfo).Execute(actionContext.ControllerContext.Controller, arguments.ToArray());
//创建HttpResponseMessage
object result = task.Result;
HttpResponseMessage response = result as HttpResponseMessage;
if (null == response)
{
//利用"媒体类型协商机制"创建MediaTypeFormatter
IContentNegotiator negotiator = actionContext.ControllerContext.Configuration.Services.GetContentNegotiator();
MediaTypeFormatter formatter = negotiator.Negotiate(result.GetType(), actionContext.Request, actionContext.ControllerContext.Configuration.Formatters).Formatter;
response = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ObjectContent(result.GetType(), result, formatter)
};
}
//创建并返回Task<HttpResponseMessage>
TaskCompletionSource <HttpResponseMessage> completionSource = new TaskCompletionSource <HttpResponseMessage>();
completionSource.SetResult(response);
return(completionSource.Task);
}
