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 #if NET_2_0
  31
  32 using System;
  33 using System.IO;
  34 using System.Collections;
  35 using System.Diagnostics;
  36 using System.Runtime.CompilerServices;
  37 using System.Runtime.InteropServices;
  38
  39 namespace System.Diagnostics
  40 {
  41         public class EventTypeFilter : TraceFilter
  42         {
  43                 SourceLevels event_type;
  44
  45                 public EventTypeFilter (SourceLevels eventType)
  46                 {
  47                         event_type = eventType;
  48                 }
  49
  50                 public SourceLevels EventType {
  51                         get { return event_type; }
  52                         set { event_type = value; }
  53                 }
  54
  55                 public override bool ShouldTrace (TraceEventCache cache,
  56                                                   string source, TraceEventType eventType,
  57                                                   int id, string formatOrMessage,
  58                                                   object [] args, object data1,
  59                                                   object [] data)
  60                 {
  61                         switch (eventType) {
  62                         case TraceEventType.Critical:
  63                                 return (event_type & SourceLevels.Critical) != 0;
  64                         case TraceEventType.Error:
  65                                 return (event_type & SourceLevels.Error) != 0;
  66                         case TraceEventType.Information:
  67                                 return (event_type & SourceLevels.Information) != 0;
  68                         case TraceEventType.Verbose:
  69                                 return (event_type & SourceLevels.Verbose) != 0;
  70                         case TraceEventType.Warning:
  71                                 return (event_type & SourceLevels.Warning) != 0;
  72                         case TraceEventType.Start:
  73                         case TraceEventType.Stop:
  74                         case TraceEventType.Suspend:
  75                         case TraceEventType.Resume:
  76                         case TraceEventType.Transfer:
  77                                 return (event_type & SourceLevels.ActivityTracing) != 0;
  78                         }
  79                         return event_type != SourceLevels.Off; // does it happen?
  80                 }
  81         }
  82 }
  83 #endif