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 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.SocketAppender; 00040 00041 private import mango.log.Appender; 00042 00043 version (Mango) 00044 { 00045 private import mango.io.Buffer, 00046 mango.io.SocketConduit; 00047 } 00048 else 00049 { 00050 private import std.stream, 00051 std.Socket, 00052 std.SocketStream; 00053 } 00054 00055 /******************************************************************************* 00056 00057 Appender for sending formatted output to a Socket. 00058 00059 *******************************************************************************/ 00060 00061 public class SocketAppender : Appender 00062 { 00063 private static uint mask; 00064 00065 version (Mango) 00066 private IBuffer buffer; 00067 else 00068 private SocketStream stream; 00069 00070 /*********************************************************************** 00071 00072 Get a unique fingerprint for this class 00073 00074 ***********************************************************************/ 00075 00076 static this() 00077 { 00078 mask = nextMask(); 00079 } 00080 00081 /*********************************************************************** 00082 00083 Create with the given Layout and address 00084 00085 ***********************************************************************/ 00086 00087 this (Layout layout, InternetAddress address) 00088 { 00089 setLayout (layout); 00090 setAddress (address); 00091 } 00092 00093 /*********************************************************************** 00094 00095 Ensure the socket is closed when we're GC'd 00096 00097 ***********************************************************************/ 00098 00099 ~this () 00100 { 00101 close(); 00102 } 00103 00104 /*********************************************************************** 00105 00106 Set the destination address and port for this socket 00107 00108 ***********************************************************************/ 00109 00110 void setAddress (InternetAddress address) 00111 { 00112 close (); 00113 00114 version (Mango) 00115 { 00116 try { 00117 SocketConduit socket = new SocketConduit (); 00118 socket.connect (address); 00119 buffer = socket.createBuffer (); 00120 } catch (Object x) 00121 printf ("SocketAppender: failed to connect\n"); 00122 } 00123 else 00124 { 00125 try { 00126 Socket s = new Socket (AddressFamily.INET, SocketType.STREAM, ProtocolType.IP); 00127 s.connect (address); 00128 stream = new SocketStream (s, FileMode.Out); 00129 } catch (Object x) 00130 printf ("SocketAppender: failed to connect\n"); 00131 } 00132 } 00133 00134 /*********************************************************************** 00135 00136 Return the fingerprint for this class 00137 00138 ***********************************************************************/ 00139 00140 uint getMask () 00141 { 00142 return mask; 00143 } 00144 00145 /*********************************************************************** 00146 00147 Return the name of this class 00148 00149 ***********************************************************************/ 00150 00151 char[] getName () 00152 { 00153 return this.classinfo.name; 00154 } 00155 00156 /*********************************************************************** 00157 00158 Append an event to the output. 00159 00160 ***********************************************************************/ 00161 00162 void append (Event event) 00163 { 00164 version (Mango) 00165 { 00166 if (buffer) 00167 { 00168 Layout layout = getLayout; 00169 buffer.append (layout.header (event)); 00170 buffer.append (layout.content (event)); 00171 buffer.append (layout.footer (event)).flush(); 00172 } 00173 } 00174 else 00175 { 00176 if (stream) 00177 { 00178 Layout layout = getLayout; 00179 stream.writeString (layout.header (event)); 00180 stream.writeString (layout.content (event)); 00181 stream.writeString (layout.footer (event)); 00182 stream.flush (); 00183 } 00184 } 00185 } 00186 00187 /*********************************************************************** 00188 00189 Close the socket associated with this Appender 00190 00191 ***********************************************************************/ 00192 00193 void close () 00194 { 00195 version (Mango) 00196 { 00197 if (buffer) 00198 buffer.getConduit.close(); 00199 buffer = null; 00200 } 00201 else 00202 { 00203 if (stream) 00204 stream.close (); 00205 stream = null; 00206 } 00207 } 00208 }