private static MiniServer GetAnyBackEndServer(int versionNumber, bool needsExactVersionMatch)
{
MiniServer miniServer = null;
try
{
miniServer = ServersCache.GetDeterministicBackEndServerForASite(versionNumber, null, needsExactVersionMatch, null);
}
catch (ServerHasNotBeenFoundException)
{
}
if (miniServer != null)
{
return(miniServer);
}
try
{
ServersCache.CacheLockForServersDictionary.EnterReadLock();
miniServer = ServersCache.FindMiniServerInListWithoutAffinity(ServersCache.ServersDictionary.Values.ToList <ServersCache.ServerInfo>(), versionNumber, needsExactVersionMatch);
}
finally
{
ServersCache.CacheLockForServersDictionary.ExitReadLock();
}
if (miniServer != null)
{
return(miniServer);
}
MiniServer oneMailboxServerForASite = ServersCache.GetOneMailboxServerForASite(null, versionNumber, needsExactVersionMatch);
ServersCache.UpdateMiniServerIntoCache(oneMailboxServerForASite);
return(oneMailboxServerForASite);
}
private static MiniServer FindAndReturnMiniServerFromCacheForASite(ADObjectId siteId, int versionNumber, string identifier, bool needsExactVersionMatch)
{
int startIndex = -1;
int endIndex = -1;
MiniServer miniServer = null;
if (ServersCache.SiteToServersDictionary.ContainsKey(siteId))
{
try
{
ServersCache.CacheLockForSiteToServersDictionary.EnterReadLock();
List <ServersCache.ServerInfo> list = ServersCache.SiteToServersDictionary[siteId];
if (ServersCache.IsLocalSite(siteId))
{
if (DateTime.UtcNow - ServersCache.LastRefreshTimeForLocalSiteCache > ServersCache.RefreshInterval)
{
miniServer = null;
}
else
{
bool flag = ServersCache.TryCalculateStartAndEndIndex(list, versionNumber, needsExactVersionMatch, out startIndex, out endIndex);
if (flag)
{
int index = ServersCache.GenerateIndexOfServer(startIndex, endIndex, identifier);
miniServer = list[index].MiniServer;
}
}
}
else
{
miniServer = ServersCache.FindMiniServerInListWithoutAffinity(list, versionNumber, needsExactVersionMatch);
}
if (miniServer == null)
{
ServersCache.Tracer.TraceError <int>(0L, "ServersCache: No server with the version number {0} in the cache.", versionNumber);
}
return(miniServer);
}
finally
{
ServersCache.CacheLockForSiteToServersDictionary.ExitReadLock();
}
}
return(null);
}
