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SocketAppender.d

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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 (Isolated)
00044         {
00045         private import  std.stream,
00046                         std.Socket,
00047                         std.SocketStream;
00048         }
00049      else
00050         {
00051         private import  mango.io.Buffer,
00052                         mango.io.Console,
00053                         mango.io.SocketConduit;
00054         }
00055 
00056 /*******************************************************************************
00057 
00058         Appender for sending formatted output to a Socket.
00059 
00060 *******************************************************************************/
00061 
00062 public class SocketAppender : Appender
00063 {
00064         private static uint mask;
00065 
00066         version (Isolated)
00067                  private SocketStream stream;
00068               else
00069                  private IBuffer buffer;
00070 
00071         /***********************************************************************
00072                 
00073                 Get a unique fingerprint for this class
00074 
00075         ***********************************************************************/
00076 
00077         static this()
00078         {
00079                 mask = nextMask();
00080         }
00081 
00082         /***********************************************************************
00083                 
00084                 Create with the given Layout and address
00085 
00086         ***********************************************************************/
00087 
00088         this (Layout layout, InternetAddress address)
00089         {
00090                 setLayout (layout);
00091                 setAddress (address);
00092         }
00093 
00094         /***********************************************************************
00095                
00096                Set the destination address and port for this socket
00097 
00098         ***********************************************************************/
00099 
00100         void setAddress (InternetAddress address)
00101         {
00102                 close ();
00103                 
00104                 version (Isolated)
00105                         {
00106                         try {
00107                             throw new Exception ("SocketAppender fails with dmd v0.115");
00108                             Socket s = null; //new Socket (AddressFamily.INET, SocketType.STREAM, ProtocolType.IP);
00109                             s.connect (address);
00110                             stream = new SocketStream (s, FileMode.Out);
00111                             } catch (Object x)
00112                                      printf ("SocketAppender: failed to connect\n");
00113                         }
00114                      else
00115                         {
00116                         try {
00117                             SocketConduit socket = new SocketConduit (true);
00118                             socket.connect (address);
00119                             buffer = new Buffer (socket);
00120                             } catch (Object x)
00121                                      Cerr ("SocketAppender: failed to connect\n"c);
00122                         }
00123         }
00124 
00125         /***********************************************************************
00126                 
00127                 Return the fingerprint for this class
00128 
00129         ***********************************************************************/
00130 
00131         uint getMask ()
00132         {
00133                 return mask;
00134         }
00135 
00136         /***********************************************************************
00137                 
00138                 Return the name of this class
00139 
00140         ***********************************************************************/
00141 
00142         char[] getName ()
00143         {
00144                 return this.classinfo.name;
00145         }
00146                 
00147         /***********************************************************************
00148                 
00149                 Append an event to the output.
00150                  
00151         ***********************************************************************/
00152 
00153         void append (Event event)
00154         {
00155                 version (Isolated)
00156                         {
00157                         if (stream)
00158                            {
00159                            Layout layout = getLayout;
00160                            stream.writeString (layout.header  (event));
00161                            stream.writeString (layout.content (event));
00162                            stream.writeString (layout.footer  (event));
00163                            stream.flush ();
00164                            }    
00165                         }
00166                      else
00167                         {
00168                         if (buffer)
00169                            {
00170                            Layout layout = getLayout;
00171                            buffer.append (layout.header  (event));
00172                            buffer.append (layout.content (event));
00173                            buffer.append (layout.footer  (event)).flush();
00174                            }    
00175                         }
00176         }
00177 
00178         /***********************************************************************
00179             
00180                 Close the socket associated with this Appender
00181                     
00182         ***********************************************************************/
00183 
00184         void close ()
00185         {
00186                 version (Isolated)
00187                         {
00188                         if (stream)
00189                             stream.close ();
00190                         stream = null;
00191                         }
00192                      else
00193                         {
00194                         if (buffer)
00195                             buffer.getConduit.close();
00196                         buffer = null;
00197                         }
00198         }
00199 }

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