public void Modify(Uri replica, IList <Uri> allReplicas, IReplicaStorageProvider storageProvider, Request request, ref double weight)
{
DateTime lastGrayTimestamp;
var storage = storageProvider.Obtain <DateTime>(storageKey);
if (!storage.TryGetValue(replica, out lastGrayTimestamp))
{
return;
}
var currentTime = timeProvider.GetCurrentTime();
var grayPeriod = grayPeriodProvider.GetGrayPeriod();
if (lastGrayTimestamp + grayPeriod >= currentTime)
{
weight = 0.0;
}
else
{
if (storage.Remove(replica, lastGrayTimestamp))
{
LogReplicaIsNoLongerGray(replica);
}
}
}
public void SetUp()
{
weight = 1.0;
request = Request.Get("foo/bar");
replica1 = new Uri("http://replica1");
replica2 = new Uri("http://replica2");
replicas = new List <Uri> {
replica1, replica2
};
storage = new ConcurrentDictionary <Uri, DateTime>();
storageProvider = Substitute.For <IReplicaStorageProvider>();
storageProvider.Obtain <DateTime>(Arg.Any <string>()).Returns(storage);
periodProvider = Substitute.For <IGrayPeriodProvider>();
periodProvider.GetGrayPeriod().Returns(5.Minutes());
timeProvider = Substitute.For <ITimeProvider>();
timeProvider.GetCurrentTime().Returns(currentTime = DateTime.UtcNow);
modifier = new GrayListModifier(periodProvider, timeProvider, new ConsoleLog());
}
