public static void Invoke(this MethodInvocationContext context)
{
Console.WriteLine($"real method[{context.ProxyMethod.Name}] invoking...");
var returnValue = context.MethodBase?.Invoke(context.Target, context.Parameters);
if (null != returnValue && context.ProxyMethod.ReturnType != typeof(void))
{
context.ReturnValue = returnValue;
}
}
public static void InvokeAspectDelegate(MethodInvocationContext context)
{
var action = _aspectDelegates.GetOrAdd($"{context.ProxyMethod.DeclaringType}.{context.ProxyMethod}", m =>
{
var aspects = new List <AbstractAspect>(8);
if (context.MethodBase != null)
{
foreach (var aspect in context.MethodBase.GetCustomAttributes <AbstractAspect>())
{
if (!aspects.Exists(x => x.GetType() == aspect.GetType()))
{
aspects.Add(aspect);
}
}
}
var methodParameterTypes = context.ProxyMethod.GetParameters().Select(p => p.GetType()).ToArray();
foreach (var implementedInterface in context.ProxyTarget.GetType().GetImplementedInterfaces())
{
var method = implementedInterface.GetMethod(context.ProxyMethod.Name, methodParameterTypes);
if (null != method)
{
foreach (var aspect in method.GetCustomAttributes <AbstractAspect>())
{
if (!aspects.Exists(x => x.GetType() == aspect.GetType()))
{
aspects.Add(aspect);
}
}
}
}
var builder = PipelineBuilder.Create <MethodInvocationContext>(x => x.Invoke());
foreach (var aspect in aspects)
{
builder.Use(aspect.Invoke);
}
return(builder.Build());
});
action.Invoke(context);
// check for return value
if (context.ProxyMethod.ReturnType != typeof(void))
{
if (context.ReturnValue == null && context.ProxyMethod.ReturnType.IsValueType)
{
context.ReturnValue = Activator.CreateInstance(context.ProxyMethod.ReturnType);
}
}
}
public override void Invoke(MethodInvocationContext methodInvocationContext, Action next)
{
Console.WriteLine($"begin invoke method {methodInvocationContext.ProxyMethod.Name} in {GetType().Name}...");
try
{
next();
}
catch (Exception e)
{
Console.WriteLine($"Invoke {methodInvocationContext.ProxyMethod.DeclaringType?.FullName}.{methodInvocationContext.ProxyMethod.Name} exception");
Console.WriteLine(e);
}
Console.WriteLine($"end invoke method {methodInvocationContext.ProxyMethod.Name} in {GetType().Name}...");
}
public abstract void Invoke(MethodInvocationContext methodInvocationContext, Action next);
