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NullAppender.d

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00001 /*******************************************************************************
00002 
00003         @file NullAppender.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        Initial version, May 2004
00034         @author         Kris
00035 
00036 
00037 *******************************************************************************/
00038 
00039 module mango.log.NullAppender;
00040 
00041 private import mango.log.Appender;
00042 
00043 /*******************************************************************************
00044 
00045         An appender that does nothing. This is useful for cutting and
00046         pasting, and for benchmarking the mango.log environment.
00047 
00048 *******************************************************************************/
00049 
00050 public class NullAppender : Appender
00051 {
00052         private static uint mask;
00053 
00054         /***********************************************************************
00055                 
00056                 Get a unique fingerprint for this class
00057 
00058         ***********************************************************************/
00059 
00060         static this()
00061         {
00062                 mask = nextMask();
00063         }
00064 
00065         /***********************************************************************
00066                
00067                 Construct a NullAppender
00068 
00069         ***********************************************************************/
00070 
00071         this ()
00072         {
00073         }
00074 
00075         /***********************************************************************
00076                 
00077                 Create with the given Layout
00078 
00079         ***********************************************************************/
00080 
00081         this (Layout layout)
00082         {
00083                 setLayout (layout);
00084         }
00085 
00086         /***********************************************************************
00087                 
00088                 Return the fingerprint for this class
00089 
00090         ***********************************************************************/
00091 
00092         uint getMask ()
00093         {
00094                 return mask;
00095         }
00096 
00097         /***********************************************************************
00098                 
00099                 Return the name of this class
00100 
00101         ***********************************************************************/
00102 
00103         char[] getName ()
00104         {
00105                 return this.classinfo.name;
00106         }
00107                 
00108         /***********************************************************************
00109                 
00110                 Append an event to the output.
00111                  
00112         ***********************************************************************/
00113 
00114         void append (Event event)
00115         {
00116                 Layout layout = getLayout;
00117                 layout.header  (event);
00118                 layout.content (event);
00119                 layout.footer  (event);
00120         }
00121 }

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