/// <summary>
/// 获取包含MicroClient特性的程序集
/// </summary>
/// <param name="assemblyName"></param>
/// <returns></returns>
public static IList <Type> GetMicroClientTypesByAssembly(string assemblyName)
{
List <Type> list = new List <Type>();
var assembly = AssemblyLoadContext.Default.LoadFromAssemblyName(new AssemblyName(assemblyName));
var typeinfos = assembly.DefinedTypes;
foreach (var typeinfo in typeinfos)
{
// 判断是否有特性
MicroClient microClient = typeinfo.GetCustomAttribute <MicroClient>();
if (microClient != null)
{
list.Add(typeinfo.AsType());
}
}
return(list);
}
/// <summary>
/// 客户端代理执行
/// </summary>
/// <param name="invocation"></param>
public void Intercept(IInvocation invocation)
{
// 1、获取接口方法
MethodInfo methodInfo = invocation.Method;
// 2、获取方法上特性
IEnumerable <Attribute> attributes = methodInfo.GetCustomAttributes();
// 3、遍历
foreach (var attribute in attributes)
{
// 1、获取Url
Type type = invocation.Method.DeclaringType;
MicroClient microClient = type.GetCustomAttribute <MicroClient>();
if (microClient == null)
{
throw new FrameException($"MicroClient 特性不能为空");
}
// 2、转换成动态参数
ProxyMethodParameter proxyMethodParameter = new ProxyMethodParameter(methodInfo.GetParameters(), invocation.Arguments);
dynamic paramPairs = ArgumentsConvert(proxyMethodParameter);
if (attribute is GetPath getPath)
{
// 3、路径变量替换
string path = PathParse(getPath.Path, paramPairs);
// 4、Get请求
dynamic result = middleService.GetDynamic(microClient.UrlShcme, microClient.ServiceName, path, paramPairs);
// 5、获取返回值类型
Type returnType = methodInfo.ReturnType;
// 8、赋值给返回值
invocation.ReturnValue = ResultConvert(result, returnType);
}
else if (attribute is PostPath postPath)
{
// 3、路径变量替换
string path = PathParse(postPath.Path, paramPairs);
// 4、执行
dynamic result = middleService.PostDynamic(microClient.UrlShcme, microClient.ServiceName, path, paramPairs);
// 5、获取返回值类型
Type returnType = methodInfo.ReturnType;
// 8、赋值给返回值
invocation.ReturnValue = ResultConvert(result, returnType);
}
else if (attribute is PutPath putPath)
{
// 3、路径变量替换
string path = PathParse(putPath.Path, paramPairs);
// 4、执行
dynamic result = middleService.PutDynamic(microClient.UrlShcme, microClient.ServiceName, path, paramPairs);
// 5、获取返回值类型
Type returnType = methodInfo.ReturnType;
// 8、赋值给返回值
invocation.ReturnValue = ResultConvert(result, returnType);
}
else if (attribute is DeletePath deletePath)
{
// 3、路径变量替换
string path = PathParse(deletePath.Path, paramPairs);
// 4、执行
dynamic result = middleService.DeleteDynamic(microClient.UrlShcme, microClient.ServiceName, path, paramPairs);
// 5、获取返回值类型
Type returnType = methodInfo.ReturnType;
// 8、赋值给返回值
invocation.ReturnValue = ResultConvert(result, returnType);
}
else
{
throw new FrameException($"方法特性不存在");
}
}
}