private void ModifyWeights(
AggregatedClusterStatistic aggregatedClusterStatistic,
IRelativeWeightCalculator relativeWeightCalculator,
IWeightsNormalizer weightsNormalizer,
IWeights weights)
{
var newWeights = new Dictionary <Uri, Weight>(aggregatedClusterStatistic.Replicas.Count);
var statisticCollectedTimestamp = aggregatedClusterStatistic.Cluster.Timestamp;
var relativeMaxWeight = 0d;
foreach (var(replica, replicaStatistic) in aggregatedClusterStatistic.Replicas)
{
var previousWeight = weights.Get(replica, settings.WeightsTTL) ??
new Weight(settings.InitialWeight, statisticCollectedTimestamp - settings.WeightUpdatePeriod);
var newReplicaWeight = relativeWeightCalculator
.Calculate(aggregatedClusterStatistic.Cluster, replicaStatistic, previousWeight, settings);
newWeights.Add(replica, newReplicaWeight);
if (relativeMaxWeight < newReplicaWeight.Value)
{
relativeMaxWeight = newReplicaWeight.Value;
}
}
weightsNormalizer.Normalize(newWeights, relativeMaxWeight);
LogWeights(weights, newWeights);
weights.Update(newWeights, settings);
}
public ClusterState(
IRelativeWeightCalculator relativeWeightCalculator = null,
IRawClusterStatistic rawClusterStatistic = null,
ITimeProvider timeProvider = null,
IStatisticHistory statisticHistory = null,
IWeightsNormalizer weightsNormalizer = null,
IWeights weights = null)
{
IsUpdatingNow = new AtomicBoolean(false);
TimeProvider = timeProvider ?? new TimeProvider();
RelativeWeightCalculator = relativeWeightCalculator ?? new RelativeWeightCalculator();
Weights = weights ?? new Weights();
WeightsNormalizer = weightsNormalizer ?? new WeightsNormalizer();
CurrentStatistic = rawClusterStatistic ?? new RawClusterStatistic();
StatisticHistory = statisticHistory ?? new StatisticsHistory();
LastUpdateTimestamp = TimeProvider.GetCurrentTime();
}
