Circ.Lib/Common/Logger.cs

   1 #region License
   2 /* Circ.Lib : main library behind Circ
   3  * Copyright (C) 2007  LAVAL Jérémie
   4  *
   5  * This file is licensed under the terms of the LGPL.
   6  *
   7  * For the complete licence see the file COPYING.
   8  */
   9 #endregion
  10 using System;
  11 using System.IO;
  12 using System.Diagnostics;
  13 using System.Reflection;
  14
  15 namespace Circ
  16 {
  17         public enum LogType {
  18                 Debug,
  19                 Error
  20         }
  21
  22         public static class Logger
  23         {
  24                 static TextWriter sw;
  25
  26                 static Logger()
  27                 {
  28                         sw = Console.Out;
  29                 }
  30
  31                 public static TextWriter Output {
  32             get  {
  33                 return sw;
  34             }
  35                         set {
  36                                 if (value == null)
  37                                         throw new ArgumentNullException("value");
  38                 sw.Dispose();
  39                                 sw = value;
  40                         }
  41                 }
  42
  43                 private static void Log(LogType type, string mess)
  44                 {
  45                         StackTrace st = new StackTrace();
  46                         StackFrame sf = st.GetFrame(2);
  47
  48                         if (mess == null || sf == null)
  49                                 return;
  50
  51                         sw.WriteLine(type.ToString()+" -> "+ sf.GetMethod().Name+" :: "+mess);
  52                 }
  53
  54                 [System.Diagnostics.ConditionalAttribute("__DEBUG__")]
  55                 public static void Debug(string mess)
  56                 {
  57                         Log(LogType.Debug, mess);
  58                 }
  59
  60                 public static void Error(string mess, Exception ex)
  61                 {
  62                         string message = (ex == null) ? mess : (mess + ", Exception type : " + ex.GetType().ToString()
  63                                 + ", Exception message : " + ex.Message);
  64                         Log(LogType.Error, message);
  65                 }
  66         }
  67 }