mcs/class/System/System.Diagnostics/TraceListenerCollection.cs

   1 //
   2 // System.Diagnostics.TraceListenerCollection.cs
   3 //
   4 // Authors:
   5 //   Jonathan Pryor (jonpryor@vt.edu)
   6 //
   7 // Comments from John R. Hicks <angryjohn69@nc.rr.com> original implementation
   8 // can be found at: /mcs/docs/apidocs/xml/en/System.Diagnostics
   9 //
  10 // (C) 2002 Jonathan Pryor
  11 //
  12
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34
  35 using System;
  36 using System.Collections;
  37 using System.Diagnostics;
  38 using System.Globalization;
  39
  40 namespace System.Diagnostics {
  41
  42         public class TraceListenerCollection : IList, ICollection, IEnumerable {
  43
  44                 private ArrayList listeners = new ArrayList ();
  45
  46                 internal TraceListenerCollection ()
  47                 {
  48                         Add (new DefaultTraceListener ());
  49                 }
  50
  51                 public int Count{
  52                         get {return listeners.Count;}
  53                 }
  54
  55                 public TraceListener this [string name] {
  56                         get {
  57                                 foreach (TraceListener listener in listeners) {
  58                                         if (listener.Name == name)
  59                                                 return listener;
  60                                 }
  61                                 return null;
  62                         }
  63                 }
  64
  65                 public TraceListener this [int index] {
  66                         get {return (TraceListener) listeners[index];}
  67                         set {
  68                                 InitializeListener (value);
  69                                 listeners[index] = value;
  70                         }
  71                 }
  72
  73                 object IList.this [int index] {
  74                         get {return listeners[index];}
  75                         set {
  76                                 this[index] = (TraceListener) value;
  77                         }
  78                 }
  79
  80                 bool ICollection.IsSynchronized {
  81                         get {return listeners.IsSynchronized;}
  82                 }
  83
  84                 object ICollection.SyncRoot {
  85                         get {return listeners.SyncRoot;}
  86                 }
  87
  88                 bool IList.IsFixedSize {
  89                         get {return listeners.IsFixedSize;}
  90                 }
  91
  92                 bool IList.IsReadOnly {
  93                         get {return listeners.IsReadOnly;}
  94                 }
  95
  96                 public int Add (TraceListener listener)
  97                 {
  98                         InitializeListener (listener);
  99                         return listeners.Add (listener);
 100                 }
 101
 102                 private void InitializeListener (TraceListener listener)
 103                 {
 104                         listener.IndentLevel = TraceImpl.IndentLevel;
 105                         listener.IndentSize = TraceImpl.IndentSize;
 106                 }
 107
 108                 private void InitializeRange (IList listeners)
 109                 {
 110                         int e = listeners.Count;
 111                         for (int i = 0; i != e; ++i)
 112                                 InitializeListener (
 113                                         (TraceListener) listeners[i]);
 114                 }
 115
 116                 public void AddRange (TraceListener[] value)
 117                 {
 118                         InitializeRange (value);
 119                         listeners.AddRange (value);
 120                 }
 121
 122                 public void AddRange (TraceListenerCollection value)
 123                 {
 124                         InitializeRange (value);
 125                         listeners.AddRange (value.listeners);
 126                 }
 127
 128                 public void Clear ()
 129                 {
 130                         listeners.Clear ();
 131                 }
 132
 133                 public bool Contains (TraceListener listener)
 134                 {
 135                         return listeners.Contains (listener);
 136                 }
 137
 138                 public void CopyTo (TraceListener[] listeners, int index)
 139                 {
 140                         listeners.CopyTo (listeners, index);
 141                 }
 142
 143                 public IEnumerator GetEnumerator ()
 144                 {
 145                         return listeners.GetEnumerator ();
 146                 }
 147
 148                 void ICollection.CopyTo (Array array, int index)
 149                 {
 150                         listeners.CopyTo (array, index);
 151                 }
 152
 153                 int IList.Add (object value)
 154                 {
 155                         if (value is TraceListener)
 156                                 return Add ((TraceListener) value);
 157                         throw new NotSupportedException (Locale.GetText (
 158                                 "You can only add TraceListener objects to the collection"));
 159                 }
 160
 161                 bool IList.Contains (object value)
 162                 {
 163                         if (value is TraceListener)
 164                                 return listeners.Contains (value);
 165                         return false;
 166                 }
 167
 168                 int IList.IndexOf (object value)
 169                 {
 170                         if (value is TraceListener)
 171                                 return listeners.IndexOf (value);
 172                         return -1;
 173                 }
 174
 175                 void IList.Insert (int index, object value)
 176                 {
 177                         if (value is TraceListener) {
 178                                 Insert (index, (TraceListener) value);
 179                                 return;
 180                         }
 181                         throw new NotSupportedException (Locale.GetText (
 182                                 "You can only insert TraceListener objects into the collection"));
 183                 }
 184
 185                 void IList.Remove (object value)
 186                 {
 187                         if (value is TraceListener)
 188                                 listeners.Remove (value);
 189                 }
 190
 191                 public int IndexOf (TraceListener listener)
 192                 {
 193                         return listeners.IndexOf (listener);
 194                 }
 195
 196                 public void Insert (int index, TraceListener listener)
 197                 {
 198                         InitializeListener (listener);
 199                         listeners.Insert (index, listener);
 200                 }
 201
 202                 public void Remove (string name)
 203                 {
 204                         TraceListener found = null;
 205
 206                         foreach (TraceListener listener in listeners) {
 207                                 if (listener.Name == name) {
 208                                         found = listener;
 209                                         break;
 210                                 }
 211                         }
 212
 213                         if (found != null)
 214                                 listeners.Remove (found);
 215                         else
 216                                 throw new ArgumentException (Locale.GetText (
 217                                         "TraceListener " + name + " was not in the collection"));
 218                 }
 219
 220                 public void Remove (TraceListener listener)
 221                 {
 222                         listeners.Remove (listener);
 223                 }
 224
 225                 public void RemoveAt (int index)
 226                 {
 227                         listeners.RemoveAt (index);
 228                 }
 229         }
 230 }
 231