public TraceFilter(string typeFilter, MessageTypes msgTypeFilter, Level levelFilter, TraceFilter next)
{
if (string.IsNullOrEmpty(typeFilter))
{
throw new ArgumentException("typeFilter was null or empty");
}
this.myFilter = typeFilter;
this.Next = next;
this.myMsgTypeFilter = msgTypeFilter;
this.myLevelFilter = levelFilter;
var parts = typeFilter.Trim().ToLower().Split(new[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
this.myFilterHashes = new int[parts.Length];
Debug.Assert(parts.Length > 0, "Type filter parts should be > 0");
for (var i = 0; i < parts.Length; i++)
{
if (parts[i] == "*")
{
this.myFilterHashes[i] = MATCHANY;
}
else
{
this.myFilterHashes[i] = parts[i].GetHashCode();
}
}
}
internal TracerConfig(string cfg)
{
if (string.IsNullOrEmpty(cfg))
{
return;
}
var source = new TraceSource(TraceEnvVarName, SourceLevels.All);
this.myListeners = source.Listeners;
var parser = new TraceCfgParser(cfg);
var newListener = parser.OutDevice;
this.myFilters = parser.Filters;
this.myNotFilters = parser.NotFilters;
if (newListener != null)
{
// when the App.config _Trace source should be used we do not replace
// anything
if (!parser.UseAppConfigListeners)
{
this.myListeners.Clear();
this.myListeners.Add(newListener);
}
}
else
{
this.myListeners = null;
}
}
/// <summary>
/// Format string is of the form
/// outDevice; type flag1+flag2+...;type flags; ...
/// where flags are a combination of trace markers
/// </summary>
/// <param name="config"></param>
public TraceCfgParser(string config)
{
if (string.IsNullOrEmpty(config))
{
return;
}
var parts = config.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Select(str => str.Trim()).ToArray();
foreach (var filter in this.GetFilters(parts, 1).Reverse())
{
var typeName = filter.Key.TrimStart('!');
var bIsNotFilter = filter.Key.IndexOf('!') == 0;
var levelAndMsgFilter = this.ParseMsgTypeFilter(filter.Value);
var curFilterInstance = new TraceFilter(typeName, levelAndMsgFilter.Value, levelAndMsgFilter.Key, bIsNotFilter ? this.NotFilters : this.Filters);
if (bIsNotFilter)
{
this.NotFilters = curFilterInstance;
}
else
{
this.Filters = curFilterInstance;
}
}
if (parts.Length > 0)
{
this.OpenOutputDevice(parts[0].ToLower());
}
// when only output device was configured or wrong mask was entere we enable full tracing
// by default
if (this.Filters == null)
{
this.Filters = new TraceFilterMatchAll();
}
if (this.bHasError)
{
InternalError.PrintHelp();
}
}
