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PropertyConfigurator.d

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00001 /*******************************************************************************
00002 
00003         @file PropertyConfigurator.d
00004 
00005         Copyright (c) 2004 Kris Bell
00006         
00007         This software is provided 'as-is', without any express or implied
00008         warranty. In no event will the authors be held liable for damages
00009         of any kind arising from the use of this software.
00010         
00011         Permission is hereby granted to anyone to use this software for any 
00012         purpose, including commercial applications, and to alter it and/or 
00013         redistribute it freely, subject to the following restrictions:
00014         
00015         1. The origin of this software must not be misrepresented; you must 
00016            not claim that you wrote the original software. If you use this 
00017            software in a product, an acknowledgment within documentation of 
00018            said product would be appreciated but is not required.
00019 
00020         2. Altered source versions must be plainly marked as such, and must 
00021            not be misrepresented as being the original software.
00022 
00023         3. This notice may not be removed or altered from any distribution
00024            of the source.
00025 
00026         4. Derivative works are permitted, but they must carry this notice
00027            in full and credit the original source.
00028 
00029 
00030                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
00031 
00032       
00033         @version        Split from Configurator.d, November 2005
00034         @author         Kris
00035 
00036 
00037 *******************************************************************************/
00038 
00039 module mango.log.PropertyConfigurator;
00040 
00041 version (Isolated) {}
00042 else
00043 {
00044 private import  mango.io.Properties;
00045 
00046 private import  mango.log.Logger,
00047                 mango.log.Layout,
00048                 mango.log.DateLayout,
00049                 mango.log.Configurator,
00050                 mango.log.ConsoleAppender;
00051 
00052 /*******************************************************************************
00053 
00054         A utility class for initializing the basic behaviour of the
00055         default logging hierarchy.
00056 
00057         PropertyConfigurator parses a much simplified version of the 
00058         property file. Mango.log only supports the settings of Logger 
00059         levels at this time; setup of Appenders and Layouts are currently 
00060         done "in the code", though this should not be a major hardship. 
00061 
00062 *******************************************************************************/
00063 
00064 public class PropertyConfigurator
00065 {
00066         private static Logger.Level[char[]] map;
00067 
00068         /***********************************************************************
00069         
00070                 Populate a map of acceptable level names
00071 
00072         ***********************************************************************/
00073 
00074         static this()
00075         {
00076                 map["TRACE"]    = Logger.Level.Trace;
00077                 map["trace"]    = Logger.Level.Trace;
00078                 map["INFO"]     = Logger.Level.Info;
00079                 map["info"]     = Logger.Level.Info;
00080                 map["WARN"]     = Logger.Level.Warn;
00081                 map["warn"]     = Logger.Level.Warn;
00082                 map["ERROR"]    = Logger.Level.Error;
00083                 map["error"]    = Logger.Level.Error;
00084                 map["FATAL"]    = Logger.Level.Fatal;
00085                 map["fatal"]    = Logger.Level.Fatal;
00086                 map["NONE"]     = Logger.Level.None;
00087                 map["none"]     = Logger.Level.None;
00088         }
00089 
00090         /***********************************************************************
00091         
00092                 Add a default StdioAppender, with a SimpleTimerLayout, to 
00093                 the root node. The activity levels of all nodes are set
00094                 via a property file with name=value pairs specified that
00095                 follow this format:
00096 
00097                 name: the actual logger name, in dot notation format. The
00098                 name "root" is reserved to match the root logger node.
00099 
00100                 value: one of TRACE, INFO, WARN, ERROR, FATAL or NONE (or
00101                 the lowercase equivalents).
00102 
00103                 For example, the declaration
00104 
00105                 mango.unittest=INFO
00106 
00107                 sets the level of the logger called "mango.unittest".
00108 
00109         ***********************************************************************/
00110 
00111         static void configure (char[] filepath)
00112         {
00113                 void loader (char[] name, char[] value)
00114                 {
00115                         Logger l;
00116 
00117                         if (name == "root")
00118                             l = Logger.getRootLogger ();                            
00119                         else
00120                            l = Logger.getLogger (name);
00121 
00122                         if (l && value in map)
00123                             l.setLevel (map[value]);
00124                 }
00125 
00126                 // setup the basic stuff
00127                 BasicConfigurator.defaultAppender ();
00128 
00129                 // read and parse properties from file
00130                 Properties.load (filepath, &loader);
00131         }
00132 }
00133 }

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