public void Intercept(IInvocation invocation)
{
MethodMetadata metadata = Metadata.Get(invocation.Method);
if (metadata.InvocationTarget != null)
{
try
{
// currently invoked using reflection, if required we might switch to invocation using expressions
invocation.ReturnValue = metadata.InvocationTarget.Invoke(invocation.Proxy, invocation.Arguments);
}
catch (TargetInvocationException e)
{
throw e.InnerException;
}
return;
}
if (metadata.ActionMetadata.IsAsynchronous)
{
if (!metadata.ActionMetadata.HasResult)
{
// async method
invocation.ReturnValue = Proxy.SendAsync(invocation.Method, invocation.Arguments);
}
else
{
Task <object> result = Proxy.SendAsync(invocation.Method, invocation.Arguments);
if (metadata.ActionMetadata.ResultType == typeof(object))
{
invocation.ReturnValue = result;
}
else
{
invocation.ReturnValue = metadata.AsyncValueProvider(result);
}
}
}
else
{
// not async method
invocation.ReturnValue = Proxy.Send(invocation.Method, invocation.Arguments);
}
}
