public override void Clear()
{
if (!_AllowClear)
{
throw new InvalidOperationException();
}
foreach (Logger master in _Masters.ToArray())
{
try {
master.Clear();
} catch (Exception ex) { CallOnError(ex); }
}
}
// ============ Implementations ============
// Internal method to convert an entry to string. Return null if any filter says no or input/result is null.
protected virtual string EntryToString(LogEntry entry, LogFilter[] filters = null)
{
if (entry == null)
{
return(null);
}
if (filters == null)
{
filters = _Filters.ToArray();
}
foreach (LogFilter filter in filters)
{
try {
if (!filter(entry))
{
return(null);
}
} catch (Exception ex) { CallOnError(ex); }
}
var txt = entry.Message?.ToString();
if (string.IsNullOrEmpty(txt))
{
return(null);
}
if (entry.Args?.Length > 0 && txt != null)
{
try {
return(string.Format(txt, entry.Args));
} catch (FormatException ex) { CallOnError(ex); }
}
return(txt);
}
