public override TopologyExtractor GetExtractor(DirectoryObject directoryObject)
{
if (directoryObject is DirectoryMailbox)
{
return(this.realFactory.GetExtractor(directoryObject));
}
TopologyExtractor value;
if (!this.extractors.TryGetValue(directoryObject.Guid, out value))
{
TopologyExtractor extractor = this.realFactory.GetExtractor(directoryObject);
if (extractor != null)
{
value = new CachingTopologyExtractor(this.realFactory, directoryObject, base.Logger, extractor, SimpleTimer.CreateTimer(LoadBalanceADSettings.Instance.Value.LocalCacheRefreshPeriod));
}
this.extractors.TryAdd(directoryObject.Guid, value);
}
return(this.extractors[directoryObject.Guid]);
}
