/// <summary>Choose the target storage within same Datanode if possible.</summary>
internal virtual bool ChooseTargetInSameNode(Dispatcher.DBlock db, Dispatcher.Source
source, IList <StorageType> targetTypes)
{
foreach (StorageType t in targetTypes)
{
Dispatcher.DDatanode.StorageGroup target = this._enclosing.storages.GetTarget(source
.GetDatanodeInfo().GetDatanodeUuid(), t);
if (target == null)
{
continue;
}
Dispatcher.PendingMove pm = source.AddPendingMove(db, target);
if (pm != null)
{
this._enclosing.dispatcher.ExecutePendingMove(pm);
return(true);
}
}
return(false);
}
internal virtual bool ChooseTarget(Dispatcher.DBlock db, Dispatcher.Source source
, IList <StorageType> targetTypes, Matcher matcher)
{
NetworkTopology cluster = this._enclosing.dispatcher.GetCluster();
foreach (StorageType t in targetTypes)
{
foreach (Dispatcher.DDatanode.StorageGroup target in this._enclosing.storages.GetTargetStorages
(t))
{
if (matcher.Match(cluster, source.GetDatanodeInfo(), target.GetDatanodeInfo()))
{
Dispatcher.PendingMove pm = source.AddPendingMove(db, target);
if (pm != null)
{
this._enclosing.dispatcher.ExecutePendingMove(pm);
return(true);
}
}
}
}
return(false);
}
