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 }