private static List <string> GetActiveSilos(ISiloStatusOracle siloStatusOracle, ConcurrentDictionary <SiloAddress, bool> immatureSilos)
{
var activeSiloNames = new List <string>();
foreach (var kvp in siloStatusOracle.GetApproximateSiloStatuses(true))
{
bool immatureBit;
if (!(immatureSilos.TryGetValue(kvp.Key, out immatureBit) && immatureBit)) // if not immature now or any more
{
string siloName;
if (siloStatusOracle.TryGetSiloName(kvp.Key, out siloName))
{
activeSiloNames.Add(siloName);
}
}
}
return(activeSiloNames);
}
private static HashSet <QueueId> GetQueuesOfImmatureSilos(ISiloStatusOracle siloStatusOracle,
ConcurrentDictionary <SiloAddress, bool> immatureSilos,
Dictionary <string, List <QueueId> > idealDistribution)
{
HashSet <QueueId> queuesOfImmatureSilos = new HashSet <QueueId>();
foreach (var silo in immatureSilos.Where(s => s.Value)) // take only those from immature set that have their immature status bit set
{
string siloName;
if (siloStatusOracle.TryGetSiloName(silo.Key, out siloName))
{
List <QueueId> queues;
if (idealDistribution.TryGetValue(siloName, out queues))
{
queuesOfImmatureSilos.UnionWith(queues);
}
}
}
return(queuesOfImmatureSilos);
}
/// <summary>
/// Updates active silo names if necessary
/// if silo is active and name is not in active list, add it.
/// if silo is inactive and name is in active list, remove it.
/// </summary>
/// <param name="updatedSilo"></param>
/// <param name="status"></param>
/// <returns>bool, true if active silo names changed</returns>
private bool UpdateActiveSilos(SiloAddress updatedSilo, SiloStatus status)
{
bool changed = false;
string siloName;
// try to get silo name
if (siloStatusOracle.TryGetSiloName(updatedSilo, out siloName))
{
if (status.Equals(SiloStatus.Active) && // if silo state became active
!activeSiloNames.Contains(siloName)) // and silo name is not currently in active silo list
{
changed = true;
activeSiloNames.Add(siloName); // add silo to list of active silos
}
else if (!status.Equals(SiloStatus.Active) && // if silo state became not active
activeSiloNames.Contains(siloName)) // and silo name is currently in active silo list
{
changed = true;
activeSiloNames.Remove(siloName); // remove silo from list of active silos
}
}
return(changed);
}
private static HashSet<QueueId> GetQueuesOfImmatureSilos(ISiloStatusOracle siloStatusOracle,
ConcurrentDictionary<SiloAddress, bool> immatureSilos,
Dictionary<string, List<QueueId>> idealDistribution)
{
HashSet<QueueId> queuesOfImmatureSilos = new HashSet<QueueId>();
foreach (var silo in immatureSilos.Where(s => s.Value)) // take only those from immature set that have their immature status bit set
{
string siloName;
if (siloStatusOracle.TryGetSiloName(silo.Key, out siloName))
{
List<QueueId> queues;
if (idealDistribution.TryGetValue(siloName, out queues))
{
queuesOfImmatureSilos.UnionWith(queues);
}
}
}
return queuesOfImmatureSilos;
}
private static List<string> GetActiveSilos(ISiloStatusOracle siloStatusOracle, ConcurrentDictionary<SiloAddress, bool> immatureSilos)
{
var activeSiloNames = new List<string>();
foreach (var kvp in siloStatusOracle.GetApproximateSiloStatuses(true))
{
bool immatureBit;
if (!(immatureSilos.TryGetValue(kvp.Key, out immatureBit) && immatureBit)) // if not immature now or any more
{
string siloName;
if (siloStatusOracle.TryGetSiloName(kvp.Key, out siloName))
{
activeSiloNames.Add(siloName);
}
}
}
return activeSiloNames;
}