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

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