mcs/class/System.Web/System.Web/TraceManager.cs

   1 //
   2 // System.Web.TraceManager
   3 //
   4 // Author(s):
   5 //  Jackson Harper (jackson@ximian.com)
   6 //
   7 // (C) 2004-2009 Novell, Inc (http://www.novell.com)
   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
  32 using System;
  33 using System.Collections;
  34 using System.Web.Configuration;
  35
  36 namespace System.Web
  37 {
  38         sealed class TraceManager
  39         {
  40                 bool enabled = false;
  41                 bool local_only = true;
  42                 bool page_output = false;
  43                 TraceMode mode;
  44                 int request_limit = 10;
  45
  46                 int cur_item;
  47                 TraceData[] data;
  48
  49                 Exception initialException;
  50
  51                 public TraceManager ()
  52                 {
  53                         try {
  54                                 mode = TraceMode.SortByTime;
  55                                 TraceSection config = WebConfigurationManager.GetWebApplicationSection ("system.web/trace") as TraceSection;
  56                                 if (config == null)
  57                                         config = new TraceSection ();
  58
  59                                 if (config == null)
  60                                         return;
  61
  62                                 enabled = config.Enabled;
  63                                 local_only = config.LocalOnly;
  64                                 page_output = config.PageOutput;
  65                                 if (config.TraceMode == TraceDisplayMode.SortByTime)
  66                                         mode = TraceMode.SortByTime;
  67                                 else
  68                                         mode = TraceMode.SortByCategory;
  69                                 request_limit = config.RequestLimit;
  70                         } catch (Exception ex) {
  71                                 initialException = ex;
  72                         }
  73                 }
  74
  75                 public bool HasException {
  76                         get { return initialException != null; }
  77                 }
  78
  79                 public Exception InitialException {
  80                         get { return initialException; }
  81                 }
  82
  83                 public bool Enabled {
  84                         get { return enabled; }
  85                         set { enabled = value; }
  86                 }
  87
  88                 public bool LocalOnly {
  89                         get { return local_only; }
  90                         set { local_only = value; }
  91                 }
  92
  93                 public bool PageOutput {
  94                         get { return page_output; }
  95                         set { page_output = value; }
  96                 }
  97
  98                 public int RequestLimit {
  99                         get { return request_limit; }
 100                         set {
 101                                 if (request_limit == value)
 102                                         return;
 103                                 TraceData[] swap = new TraceData [value];
 104                                 Array.Copy (data, swap, (cur_item > value ? value : cur_item));
 105                                 if (cur_item > value)
 106                                         cur_item = value;
 107                                 request_limit = value;
 108                         }
 109                 }
 110
 111                 public TraceMode TraceMode {
 112                         get { return mode; }
 113                         set { mode = value; }
 114                 }
 115
 116                 public TraceData[] TraceData {
 117                         get { return data; }
 118                 }
 119
 120                 public void AddTraceData (TraceData item)
 121                 {
 122                         if (data == null)
 123                                 data = new TraceData [request_limit];
 124                         if (cur_item == request_limit)
 125                                 return;
 126                         data [cur_item++] = item;
 127                 }
 128
 129                 public void Clear ()
 130                 {
 131                         if (data == null)
 132                                 return;
 133
 134                         Array.Clear (data, 0, data.Length);
 135                         cur_item = 0;
 136                 }
 137
 138                 public int ItemCount {
 139                         get { return cur_item; }
 140                 }
 141         }
 142 }
 143