private void WriteSyncServerHistory(ServerHistoryEntryData serverHistoryData, bool writeNewEntry)
{
if (serverHistoryData == null)
{
throw new ArgumentNullException("serverHistoryEntryData");
}
if (this.serverHistoryEntriesList.Count == 0 && !writeNewEntry)
{
throw new Exception("last server history entry is null");
}
ServerHistoryEntry serverHistoryEntry = writeNewEntry ? null : this.serverHistoryEntriesList.Last <ServerHistoryEntry>();
DateTime dateTime = (DateTime)ExDateTime.UtcNow;
if (writeNewEntry)
{
if (this.serverHistoryEntriesList.Count > this.MaxServerHistoryEntries - 1)
{
this.CleanupOldServerHistory();
}
serverHistoryEntry = new ServerHistoryEntry();
string unescapedCommonName = string.Format("{0}-{1}", dateTime, Environment.MachineName);
serverHistoryEntry.SetId(this.serverHistoryRootContainerID.GetChildId(unescapedCommonName));
serverHistoryEntry.Name = serverHistoryEntry.Id.Name;
serverHistoryEntry.m_Session = this.serverHistorySession;
serverHistoryEntry.Version = 1;
this.serverHistoryEntriesList.Add(serverHistoryEntry);
}
serverHistoryEntry.Timestamp = dateTime;
serverHistoryEntry.Data = serverHistoryData.ToBinary();
this.serverHistorySession.Save(serverHistoryEntry);
}
internal void UpdateLastServerHistoryEntry(DateTime passiveTimestamp, string passiveReason)
{
if (this.serverHistoryRootContainerID != null)
{
ServerHistoryEntryData serverHistoryEntryData = this.ReadLastSyncServerHistory();
if (serverHistoryEntryData != null && string.Equals(serverHistoryEntryData.ServerName, Environment.MachineName))
{
serverHistoryEntryData.PassiveTimestamp = passiveTimestamp;
serverHistoryEntryData.PassiveReason = passiveReason;
this.WriteSyncServerHistory(serverHistoryEntryData, false);
}
}
}
internal void UpdateOrCreateServerHistoryEntry(DateTime activeTimestamp)
{
ServerHistoryEntryData serverHistoryEntryData = this.ReadLastSyncServerHistory();
string machineName = Environment.MachineName;
if (serverHistoryEntryData != null && !string.Equals(serverHistoryEntryData.ServerName, machineName, StringComparison.InvariantCultureIgnoreCase) && serverHistoryEntryData.ActiveTimestamp.Equals(serverHistoryEntryData.PassiveTimestamp))
{
serverHistoryEntryData.PassiveReason = "Server became passive for unknown reason. Passive timestamp is not accurate.";
this.WriteSyncServerHistory(serverHistoryEntryData, false);
}
if (serverHistoryEntryData == null || !string.Equals(serverHistoryEntryData.ServerName, machineName, StringComparison.InvariantCultureIgnoreCase) || !serverHistoryEntryData.ActiveTimestamp.Equals(serverHistoryEntryData.PassiveTimestamp))
{
this.WriteSyncServerHistory(new ServerHistoryEntryData(machineName, activeTimestamp, activeTimestamp, string.Empty), true);
}
}