private IEnumerable <AuditLogCollection.LogInfo> FindLogFolders(Folder rootFolder, bool includeEmptyFolders)
{
if (rootFolder.HasSubfolders)
{
using (QueryResult queryResult = rootFolder.FolderQuery(FolderQueryFlags.None, null, AuditLogCollection.SortByDisplayName, AuditLogCollection.FolderProperties))
{
object[][] rows;
do
{
rows = queryResult.GetRows(100);
if (rows != null && rows.Length > 0)
{
foreach (object[] row in rows)
{
DateTime logRangeStart;
DateTime logRangeEnd;
bool validLogSubfolder = AuditLogCollection.TryParseLogRange(row[0] as string, out logRangeStart, out logRangeEnd);
int itemCount = AuditLogCollection.GetItemCount(row[2]);
if (validLogSubfolder && (includeEmptyFolders || itemCount > 0))
{
yield return(new AuditLogCollection.LogInfo
{
FolderId = (StoreId)row[1],
RangeStart = logRangeStart,
RangeEnd = logRangeEnd,
ItemCount = itemCount
});
}
}
}
}while (rows != null && rows.Length > 0);
}
}
yield break;
}
public static string GetLogFolderNameAndRange(DateTime timestamp, out DateTime rangeStart, out DateTime rangeEnd)
{
string text = timestamp.ToString(AuditLogCollection.DailyLogFolderNameFormat);
if (!AuditLogCollection.TryParseLogRange(text, out rangeStart, out rangeEnd))
{
throw new InvalidOperationException("Invalid log folder name");
}
return(text);
}
public bool FindLog(DateTime timestamp, bool createIfNotExists, out IAuditLog auditLog)
{
auditLog = null;
using (Folder folder = Folder.Bind(this.storeSession, this.auditLogRootId))
{
AuditLogCollection.LogInfo?logInfo = null;
foreach (AuditLogCollection.LogInfo value in this.FindLogFolders(folder, false))
{
if (value.RangeStart <= timestamp && timestamp < value.RangeEnd)
{
logInfo = new AuditLogCollection.LogInfo?(value);
break;
}
}
if (logInfo == null)
{
if (!createIfNotExists)
{
if (this.IsTraceEnabled)
{
this.tracer.TraceDebug <DateTime>((long)this.GetHashCode(), "No matching log subfolder found. Lookup time={0}", timestamp);
}
return(false);
}
AuditLogCollection.LogInfo value2 = default(AuditLogCollection.LogInfo);
string logFolderNameAndRange = AuditLogCollection.GetLogFolderNameAndRange(timestamp, out value2.RangeStart, out value2.RangeEnd);
using (Folder folder2 = Folder.Create(this.storeSession, this.auditLogRootId, StoreObjectType.Folder, logFolderNameAndRange, CreateMode.OpenIfExists))
{
if (folder2.Id == null)
{
folder2.Save();
folder2.Load();
}
value2.FolderId = folder2.Id;
value2.ItemCount = folder2.ItemCount;
logInfo = new AuditLogCollection.LogInfo?(value2);
if (this.IsTraceEnabled)
{
this.tracer.TraceDebug <DateTime, DateTime, string>((long)this.GetHashCode(), "New log subfolder created. StartTime=[{0}],EndTime=[{1}],FolderId=[{2}]", value2.RangeStart, value2.RangeEnd, value2.FolderId.ToBase64String());
}
goto IL_1AA;
}
}
if (this.IsTraceEnabled)
{
this.tracer.TraceDebug <DateTime, DateTime, string>((long)this.GetHashCode(), "Found matching log subfolder StartTime=[{0}],EndTime=[{1}],FolderId=[{2}]", logInfo.Value.RangeStart, logInfo.Value.RangeEnd, logInfo.Value.FolderId.ToBase64String());
}
IL_1AA:
auditLog = new AuditLog(this.storeSession, logInfo.Value.FolderId, logInfo.Value.RangeStart, logInfo.Value.RangeEnd, logInfo.Value.ItemCount, this.recordFormatter);
}
return(true);
}