00001 /******************************************************************************* 00002 00003 @file SocketAppender.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 00027 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 00028 00029 00030 @version Initial version, May 2004 00031 @author Kris 00032 00033 00034 *******************************************************************************/ 00035 00036 module mango.log.SocketAppender; 00037 00038 version (Mango) 00039 { 00040 private import mango.io.Buffer, 00041 mango.io.SocketConduit; 00042 00043 private import mango.log.Appender; 00044 00045 /******************************************************************************* 00046 00047 Appender for sending formatted output to a Socket. 00048 00049 *******************************************************************************/ 00050 00051 public class SocketAppender : Appender 00052 { 00053 private static uint mask; 00054 private IBuffer buffer; 00055 00056 /*********************************************************************** 00057 00058 Get a unique fingerprint for this class 00059 00060 ***********************************************************************/ 00061 00062 static this() 00063 { 00064 mask = nextMask(); 00065 } 00066 00067 /*********************************************************************** 00068 00069 Create with the given Layout and address 00070 00071 ***********************************************************************/ 00072 00073 this (Layout layout, InternetAddress address) 00074 { 00075 setLayout (layout); 00076 setAddress (address); 00077 } 00078 00079 /*********************************************************************** 00080 00081 Ensure the socket is closed when we're GC'd 00082 00083 ***********************************************************************/ 00084 00085 ~this () 00086 { 00087 close(); 00088 } 00089 00090 /*********************************************************************** 00091 00092 Set the destination address and port for this socket 00093 00094 ***********************************************************************/ 00095 00096 void setAddress (InternetAddress address) 00097 { 00098 close (); 00099 00100 try { 00101 SocketConduit socket = new SocketConduit (); 00102 socket.connect (address); 00103 buffer = socket.createBuffer (); 00104 } catch (Object x) 00105 printf ("SocketAppender: failed to connect\n"); 00106 } 00107 00108 /*********************************************************************** 00109 00110 Return the fingerprint for this class 00111 00112 ***********************************************************************/ 00113 00114 uint getMask () 00115 { 00116 return mask; 00117 } 00118 00119 /*********************************************************************** 00120 00121 Return the name of this class 00122 00123 ***********************************************************************/ 00124 00125 char[] getName () 00126 { 00127 return this.classinfo.name; 00128 } 00129 00130 /*********************************************************************** 00131 00132 Append an event to the output. 00133 00134 ***********************************************************************/ 00135 00136 void append (Event event) 00137 { 00138 if (buffer) 00139 { 00140 buffer.append (getLayout.format(event)); 00141 buffer.flush (); 00142 } 00143 } 00144 00145 /*********************************************************************** 00146 00147 Close the socket associated with this Appender 00148 00149 ***********************************************************************/ 00150 00151 void close () 00152 { 00153 if (buffer) 00154 { 00155 buffer.getConduit.close(); 00156 buffer = null; 00157 } 00158 } 00159 } 00160 }