mcs/class/System/System.Diagnostics/EventTypeFilter.cs

   1 //
   2 // EventTypeFilter.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7 // (C) 2007 Novell, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.IO;
  32 using System.Collections;
  33 using System.Diagnostics;
  34 using System.Runtime.CompilerServices;
  35 using System.Runtime.InteropServices;
  36
  37 namespace System.Diagnostics
  38 {
  39         public class EventTypeFilter : TraceFilter
  40         {
  41                 SourceLevels event_type;
  42
  43                 public EventTypeFilter (SourceLevels eventType)
  44                 {
  45                         event_type = eventType;
  46                 }
  47
  48                 public SourceLevels EventType {
  49                         get { return event_type; }
  50                         set { event_type = value; }
  51                 }
  52
  53                 public override bool ShouldTrace (TraceEventCache cache,
  54                                                   string source, TraceEventType eventType,
  55                                                   int id, string formatOrMessage,
  56                                                   object [] args, object data1,
  57                                                   object [] data)
  58                 {
  59                         switch (eventType) {
  60                         case TraceEventType.Critical:
  61                                 return (event_type & SourceLevels.Critical) != 0;
  62                         case TraceEventType.Error:
  63                                 return (event_type & SourceLevels.Error) != 0;
  64                         case TraceEventType.Information:
  65                                 return (event_type & SourceLevels.Information) != 0;
  66                         case TraceEventType.Verbose:
  67                                 return (event_type & SourceLevels.Verbose) != 0;
  68                         case TraceEventType.Warning:
  69                                 return (event_type & SourceLevels.Warning) != 0;
  70                         case TraceEventType.Start:
  71                         case TraceEventType.Stop:
  72                         case TraceEventType.Suspend:
  73                         case TraceEventType.Resume:
  74                         case TraceEventType.Transfer:
  75                                 return (event_type & SourceLevels.ActivityTracing) != 0;
  76                         }
  77                         return event_type != SourceLevels.Off; // does it happen?
  78                 }
  79         }
  80 }