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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 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 }

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