public TraceFilter(string typeFilter, MessageTypes msgTypeFilter, Level levelFilter, TraceFilter next)
{
if (String.IsNullOrEmpty(typeFilter))
{
throw new ArgumentException("typeFilter was null or empty");
}
myFilter = typeFilter;
Next = next;
myMsgTypeFilter = msgTypeFilter;
myLevelFilter = levelFilter;
string[] parts = typeFilter.Trim().ToLower().Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
myFilterHashes = new int[parts.Length];
Debug.Assert(parts.Length > 0, "Type filter parts should be > 0");
for (int i = 0; i < parts.Length; i++)
{
if (parts[i] == "*")
{
myFilterHashes[i] = MATCHANY;
}
else
{
myFilterHashes[i] = parts[i].GetHashCode();
}
}
}
internal TracerConfig(string cfg)
{
if (String.IsNullOrEmpty(cfg))
{
return;
}
TraceSource source = new TraceSource(TraceEnvVarName, SourceLevels.All);
myListeners = source.Listeners;
TraceCfgParser parser = new TraceCfgParser(cfg);
TraceListener 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)
{
myListeners.Clear();
myListeners.Add(newListener);
}
}
else
{
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;
}
string [] parts = config.Split(new char [] { ';' }, StringSplitOptions.RemoveEmptyEntries)
.Select((str) => str.Trim())
.ToArray();
foreach (KeyValuePair <string, string []> filter in GetFilters(parts, 1).Reverse())
{
string typeName = filter.Key.TrimStart(new char[] { '!' });
bool bIsNotFilter = filter.Key.IndexOf('!') == 0;
KeyValuePair <Level, MessageTypes> levelAndMsgFilter = ParseMsgTypeFilter(filter.Value);
TraceFilter curFilterInstance = new TraceFilter(typeName,
levelAndMsgFilter.Value,
levelAndMsgFilter.Key,
bIsNotFilter ? NotFilters : Filters);
if (bIsNotFilter)
{
NotFilters = curFilterInstance;
}
else
{
Filters = curFilterInstance;
}
}
if (parts.Length > 0)
{
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 (bHasError == true)
{
InternalError.PrintHelp();
}
}