/// <summary>
/// 设置请求拦截
/// </summary>
/// <param name="parameters"></param>
/// <param name="httpRequestPart"></param>
private static void SetInterceptors(IEnumerable <MethodParameterInfo> parameters, HttpRequestPart httpRequestPart)
{
// 添加方法拦截器
var Interceptors = parameters.Where(u => u.Parameter.IsDefined(typeof(InterceptorAttribute), true));
foreach (var item in Interceptors)
{
// 获取拦截器类型
var interceptor = item.Parameter.GetCustomAttribute <InterceptorAttribute>();
switch (interceptor.Type)
{
// 加载请求拦截
case InterceptorTypes.Request:
if (item.Value is Action <HttpRequestMessage> onRequesting)
{
httpRequestPart.OnRequesting(onRequesting);
}
break;
// 加载响应拦截
case InterceptorTypes.Response:
if (item.Value is Action <HttpResponseMessage> onResponsing)
{
httpRequestPart.OnResponsing(onResponsing);
}
break;
// 加载 Client 配置拦截
case InterceptorTypes.Client:
if (item.Value is Action <HttpClient> onClientCreating)
{
httpRequestPart.OnClientCreating(onClientCreating);
}
break;
// 加载异常拦截
case InterceptorTypes.Exception:
if (item.Value is Action <HttpResponseMessage, string> onException)
{
httpRequestPart.OnException(onException);
}
break;
default: break;
}
}
}
/// <summary>
/// 调用全局拦截
/// </summary>
/// <param name="httpRequestPart"></param>
/// <param name="declaringType"></param>
private static void CallGlobalInterceptors(HttpRequestPart httpRequestPart, Type declaringType)
{
// 获取所有静态方法且贴有 [Interceptor] 特性
var interceptorMethods = declaringType.GetMethods()
.Where(u => u.IsDefined(typeof(InterceptorAttribute), true));
foreach (var method in interceptorMethods)
{
// 获取拦截器类型
var interceptor = method.GetCustomAttributes <InterceptorAttribute>().First();
switch (interceptor.Type)
{
// 加载请求拦截
case InterceptorTypes.Request:
var onRequesting = (Action <HttpRequestMessage>)Delegate.CreateDelegate(typeof(Action <HttpRequestMessage>), method);
httpRequestPart.OnRequesting(onRequesting);
break;
// 加载响应拦截
case InterceptorTypes.Response:
var onResponsing = (Action <HttpResponseMessage>)Delegate.CreateDelegate(typeof(Action <HttpResponseMessage>), method);
httpRequestPart.OnResponsing(onResponsing);
break;
// 加载 Client 配置拦截
case InterceptorTypes.Client:
var onClientCreating = (Action <HttpClient>)Delegate.CreateDelegate(typeof(Action <HttpClient>), method);
httpRequestPart.OnClientCreating(onClientCreating);
break;
// 加载异常拦截
case InterceptorTypes.Exception:
var onException = (Action <HttpResponseMessage, string>)Delegate.CreateDelegate(typeof(Action <HttpResponseMessage, string>), method);
httpRequestPart.OnException(onException);
break;
default: break;
}
}
}
