beagled/WebServices/WebServer/Tracing.cs

   1 //
   2 // Copied from System.Web.Util.WebTrace and changed a few lines
   3 // Under MS runtime, Trace does not work because System.Web disables normal
   4 // tracing.
   5 //
   6 // Authors:
   7 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   8 //
   9 // (C) 2002 Ximian, Inc (http://www.ximian.com)
  10 //
  11
  12 using System;
  13 using System.Collections;
  14 using System.Diagnostics;
  15
  16 namespace Mono.ASPNET
  17 {
  18         internal class WebTrace
  19         {
  20                 static Stack ctxStack;
  21                 static bool trace;
  22                 static int indentation; // Number of \t
  23
  24                 static WebTrace ()
  25                 {
  26                         ctxStack = new Stack ();
  27                 }
  28
  29                 [Conditional("WEBTRACE")]
  30                 static public void PushContext (string context)
  31                 {
  32                         ctxStack.Push (context);
  33                         indentation++;
  34                 }
  35
  36                 [Conditional("WEBTRACE")]
  37                 static public void PopContext ()
  38                 {
  39                         if (ctxStack.Count == 0)
  40                                 return;
  41
  42                         indentation--;
  43                         ctxStack.Pop ();
  44                 }
  45
  46                 static public string Context
  47                 {
  48                         get {
  49                                 if (ctxStack.Count == 0)
  50                                         return String.Empty;
  51
  52                                 return (string) ctxStack.Peek ();
  53                         }
  54                 }
  55
  56                 static public bool StackTrace
  57                 {
  58                         get { return trace; }
  59
  60                         set { trace = value; }
  61                 }
  62
  63                 [Conditional("WEBTRACE")]
  64                 static public void WriteLine (string msg)
  65                 {
  66                         Console.WriteLine (Format (msg));
  67                 }
  68
  69                 [Conditional("WEBTRACE")]
  70                 static public void WriteLine (string msg, object arg)
  71                 {
  72                         Console.WriteLine (Format (String.Format (msg, arg)));
  73                 }
  74
  75                 [Conditional("WEBTRACE")]
  76                 static public void WriteLine (string msg, object arg1, object arg2)
  77                 {
  78                         Console.WriteLine (Format (String.Format (msg, arg1, arg2)));
  79                 }
  80
  81                 [Conditional("WEBTRACE")]
  82                 static public void WriteLine (string msg, object arg1, object arg2, object arg3)
  83                 {
  84                         Console.WriteLine (Format (String.Format (msg, arg1, arg2, arg3)));
  85                 }
  86
  87                 [Conditional("WEBTRACE")]
  88                 static public void WriteLine (string msg, params object [] args)
  89                 {
  90                         Console.WriteLine (Format (String.Format (msg, args)));
  91                 }
  92
  93                 static string Tabs
  94                 {
  95                         get {
  96                                 if (indentation == 0)
  97                                         return String.Empty;
  98
  99                                 return new String ('\t', indentation);
 100                         }
 101                 }
 102
 103                 static string Format (string msg)
 104                 {
 105                         string ctx = Tabs + Context;
 106                         if (ctx.Length != 0)
 107                                 ctx += ": ";
 108
 109                         string result = ctx + msg;
 110                         if (trace)
 111                                 result += "\n" + Environment.StackTrace;
 112
 113                         return result;
 114                 }
 115         }
 116 }
 117