/// <inheritdoc />
public void Modify(Uri replica, IList <Uri> allReplicas, IReplicaStorageProvider storageProvider, Request request, RequestParameters parameters, ref double weight)
{
var clusterState = globalStorageProvider.ObtainGlobalValue(storageKey, ClusterStateFactory);
ModifyClusterWeightsIfNeed(clusterState);
weight = ModifyAndApplyLimits(weight, clusterState.Weights.Get(replica, settings.WeightsTTL));
}
public void SetUp()
{
settings = new RelativeWeightSettings()
{
WeightUpdatePeriod = 200.Milliseconds(),
PenaltyMultiplier = 100,
InitialWeight = 1,
StatisticSmoothingConstant = 100.Milliseconds(),
WeightsDownSmoothingConstant = 100.Milliseconds(),
WeightsRaiseSmoothingConstant = 100.Milliseconds(),
WeightsTTL = 5.Minutes(),
MinWeight = 0.005,
Sensitivity = 3
};
clusterState = new ClusterState(
timeProvider: Substitute.For <ITimeProvider>(),
rawClusterStatistic: Substitute.For <IRawClusterStatistic>(),
statisticHistory: Substitute.For <IStatisticHistory>(),
relativeWeightCalculator: Substitute.For <IRelativeWeightCalculator>(),
weightsNormalizer: Substitute.For <IWeightsNormalizer>(),
weights: Substitute.For <IWeights>());
replicaStorageProvider = Substitute.For <IReplicaStorageProvider>();
storageProvider = Substitute.For <IGlobalStorageProvider>();
storageProvider.ObtainGlobalValue(Arg.Any <string>(), Arg.Any <Func <ClusterState> >())
.Returns(info => clusterState);
relativeWeightModifier = new RelativeWeightModifier(settings, "srv", "env", 0, 1, storageProvider);
}