mcs/class/System.ComponentModel.Composition/src/ComponentModel/System/ComponentModel/Composition/Diagnostics/TraceSourceTraceWriter.cs

   1 // -----------------------------------------------------------------------\r
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.\r
   3 // -----------------------------------------------------------------------\r
   4 #if !SILVERLIGHT\r
   5 \r
   6 using System;\r
   7 using System.Diagnostics;\r
   8 using Microsoft.Internal;\r
   9 \r
  10 namespace System.ComponentModel.Composition.Diagnostics\r
  11 {\r
  12     // Represents a trace writer that writes to a System.Diagnostics TraceSource\r
  13     internal sealed class TraceSourceTraceWriter : TraceWriter\r
  14     {\r
  15         internal static readonly TraceSource Source = new TraceSource("System.ComponentModel.Composition", SourceLevels.Warning);\r
  16 \r
  17         public override bool CanWriteInformation\r
  18         {\r
  19             get { return Source.Switch.ShouldTrace(TraceEventType.Information); }\r
  20         }\r
  21 \r
  22         public override bool CanWriteWarning\r
  23         {\r
  24             get { return Source.Switch.ShouldTrace(TraceEventType.Warning); }\r
  25         }\r
  26 \r
  27         public override bool CanWriteError\r
  28         {\r
  29             get { return Source.Switch.ShouldTrace(TraceEventType.Error); }\r
  30         }\r
  31 \r
  32         public override void WriteInformation(CompositionTraceId traceId, string format, params object[] arguments)\r
  33         {\r
  34             WriteEvent(TraceEventType.Information, traceId, format, arguments);\r
  35         }\r
  36 \r
  37         public override void WriteWarning(CompositionTraceId traceId, string format, params object[] arguments)\r
  38         {\r
  39             WriteEvent(TraceEventType.Warning, traceId, format, arguments);\r
  40         }\r
  41 \r
  42         public override void WriteError(CompositionTraceId traceId, string format, params object[] arguments)\r
  43         {\r
  44             WriteEvent(TraceEventType.Error, traceId, format, arguments);\r
  45         }\r
  46 \r
  47         private static void WriteEvent(TraceEventType eventType, CompositionTraceId traceId, string format, params object[] arguments)\r
  48         {\r
  49             Source.TraceEvent(eventType, (int)traceId, format, arguments);\r
  50         }\r
  51     }\r
  52 }\r
  53 \r
  54 #endif