class/System/System.Diagnostics/TraceSource.cs

   1 //
   2 // TraceSource.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7 // Copyright (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
  31 #if NET_2_0
  32
  33 using System;
  34 using System.Collections;
  35 using System.Collections.Specialized;
  36 using System.Configuration;
  37
  38 namespace System.Diagnostics
  39 {
  40         public class TraceSource
  41         {
  42                 SourceSwitch source_switch;
  43                 TraceListenerCollection listeners;
  44
  45                 public TraceSource (string name)
  46                         : this (name, SourceLevels.Off)
  47                 {
  48                 }
  49
  50                 public TraceSource (string name, SourceLevels sourceLevels)
  51                 {
  52                         if (name == null)
  53                                 throw new ArgumentNullException ("name");
  54                         Hashtable sources = DiagnosticsConfiguration.Settings ["sources"] as Hashtable;
  55                         TraceSourceInfo info = sources != null ? sources [name] as TraceSourceInfo : null;
  56                         source_switch = new SourceSwitch (name);
  57
  58                         if (info == null)
  59                                 listeners = new TraceListenerCollection ();
  60                         else {
  61                                 source_switch.Level = info.Levels;
  62                                 listeners = info.Listeners;
  63                         }
  64                 }
  65
  66                 public StringDictionary Attributes {
  67                         get { return source_switch.Attributes; }
  68                 }
  69
  70                 public TraceListenerCollection Listeners {
  71                         get { return listeners; }
  72                 }
  73
  74                 public string Name {
  75                         get { return source_switch.DisplayName; }
  76                 }
  77
  78                 public SourceSwitch Switch {
  79                         get { return source_switch; }
  80                         set {
  81                                 if (value == null)
  82                                         throw new ArgumentNullException ("value");
  83                                 source_switch = value;
  84                         }
  85                 }
  86
  87                 public void Close ()
  88                 {
  89                         lock (((ICollection) listeners).SyncRoot) {
  90                                 foreach (TraceListener tl in listeners)
  91                                         tl.Close ();
  92                         }
  93                 }
  94
  95                 public void Flush ()
  96                 {
  97                         lock (((ICollection) listeners).SyncRoot) {
  98                                 foreach (TraceListener tl in listeners)
  99                                         tl.Flush ();
 100                         }
 101                 }
 102
 103                 [Conditional ("TRACE")]
 104                 public void TraceData (
 105                         TraceEventType eventType, int id, object data)
 106                 {
 107                         if (!source_switch.ShouldTrace (eventType))
 108                                 return;
 109                         lock (((ICollection) listeners).SyncRoot) {
 110                                 foreach (TraceListener tl in listeners)
 111                                         tl.TraceData (null, Name, eventType, id, data);
 112                         }
 113                 }
 114
 115                 [Conditional ("TRACE")]
 116                 public void TraceData (
 117                         TraceEventType eventType, int id, params object [] data)
 118                 {
 119                         if (!source_switch.ShouldTrace (eventType))
 120                                 return;
 121                         lock (((ICollection) listeners).SyncRoot) {
 122                                 foreach (TraceListener tl in listeners)
 123                                         tl.TraceData (null, Name, eventType, id, data);
 124                         }
 125                 }
 126
 127                 [Conditional ("TRACE")]
 128                 public void TraceEvent (TraceEventType eventType, int id)
 129                 {
 130                         if (!source_switch.ShouldTrace (eventType))
 131                                 return;
 132                         lock (((ICollection) listeners).SyncRoot) {
 133                                 foreach (TraceListener tl in listeners)
 134                                         tl.TraceEvent (null, Name, eventType, id);
 135                         }
 136                 }
 137
 138                 [Conditional ("TRACE")]
 139                 public void TraceEvent (TraceEventType eventType,
 140                         int id, string message)
 141                 {
 142                         if (!source_switch.ShouldTrace (eventType))
 143                                 return;
 144                         lock (((ICollection) listeners).SyncRoot) {
 145                                 foreach (TraceListener tl in listeners)
 146                                         tl.TraceEvent (null, Name, eventType, id, message);
 147                         }
 148                 }
 149
 150                 [Conditional ("TRACE")]
 151                 public void TraceEvent (TraceEventType eventType,
 152                         int id, string format, params object [] args)
 153                 {
 154                         if (!source_switch.ShouldTrace (eventType))
 155                                 return;
 156                         lock (((ICollection) listeners).SyncRoot) {
 157                                 foreach (TraceListener tl in listeners)
 158                                         tl.TraceEvent (null, Name, eventType, id, format, args);
 159                         }
 160                 }
 161
 162                 [Conditional ("TRACE")]
 163                 public void TraceInformation (string format)
 164                 {
 165                         TraceEvent (TraceEventType.Information, 0, format);
 166                 }
 167
 168                 [Conditional ("TRACE")]
 169                 public void TraceInformation (
 170                         string format, params object [] args)
 171                 {
 172                         TraceEvent (TraceEventType.Information, 0, format, args);
 173                 }
 174
 175                 [Conditional ("TRACE")]
 176                 public void TraceTransfer (int id, string message, Guid relatedActivityId)
 177                 {
 178                         if (!source_switch.ShouldTrace (TraceEventType.Transfer ))
 179                                 return;
 180                         lock (((ICollection) listeners).SyncRoot) {
 181                                 foreach (TraceListener tl in listeners)
 182                                         tl.TraceTransfer (null, Name, id, message, relatedActivityId);
 183                         }
 184                 }
 185
 186                 protected virtual string [] GetSupportedAttributes ()
 187                 {
 188                         return null;
 189                 }
 190         }
 191 }
 192
 193 #endif