public override IMethodReturn Invoke(IMethodInvocation input, GetNextInterceptionBehaviorDelegate getNext)
{
Guard.ArgumentIsNotNull(input, "input");
Guard.ArgumentIsNotNull(getNext, "getNext");
var cacheKey = GenerateCacheKey(input);
_logger.Write(string.Format("Fetching {0} from {1}", cacheKey, _cachingProvider.GetType()), TraceEventType.Information);
var result = _cachingProvider.Retrieve <object>(cacheKey);
if (result == null)
{
_logger.Write(string.Format("{0} doesn't exist in Cache. Continue execution pipeline.", cacheKey), TraceEventType.Information);
var methodReturn = getNext().Invoke(input, getNext);
if (methodReturn.Exception == null && methodReturn.ReturnValue != null)
{
_logger.Write(string.Format("Inserting {0}, with key: {1} to {2}", methodReturn.ReturnValue, cacheKey, _cachingProvider.GetType()), TraceEventType.Information);
_cachingProvider.Insert(cacheKey, methodReturn.ReturnValue);
}
else
{
_logger.Write(string.Format("Target {0} did not return a value, nothing to cache", input.Target), TraceEventType.Information);
}
return(methodReturn);
}
_logger.Write(string.Format("Object retrieved from {0}, value: {1}", _cachingProvider.GetType(), result), TraceEventType.Information);
return(input.CreateMethodReturn(result));
}
