public void Learn(ReplicaResult result, IReplicaStorageProvider storageProvider)
{
var storage = storageProvider.Obtain <THealth>(storageKey);
while (true)
{
THealth currentHealth;
THealth newHealth;
bool foundHealth;
if (!(foundHealth = storage.TryGetValue(result.Replica, out currentHealth)))
{
currentHealth = implementation.CreateDefaultHealth();
}
switch (tuningPolicy.SelectAction(result))
{
case AdaptiveHealthAction.Increase:
newHealth = implementation.IncreaseHealth(currentHealth);
break;
case AdaptiveHealthAction.Decrease:
newHealth = implementation.DecreaseHealth(currentHealth);
break;
default:
newHealth = currentHealth;
break;
}
if (implementation.AreEqual(currentHealth, newHealth))
{
break;
}
var updatedHealth = foundHealth
? storage.TryUpdate(result.Replica, newHealth, currentHealth)
: storage.TryAdd(result.Replica, newHealth);
if (updatedHealth)
{
implementation.LogHealthChange(result.Replica, currentHealth, newHealth, log);
break;
}
}
}
private void SetupTuningAction(AdaptiveHealthAction action)
{
tuningPolicy.SelectAction(Arg.Any <ReplicaResult>()).Returns(action);
}
