On May 15, 2008, at 9:45 AM, Ruud Bos wrote:
Hello,
I'm new to the list, so I have no idea if this question has been
asked many times before. I hope someone can put me in the right
direction.
I'd like to use log4cxx for two applications. One acts as a client
that needs to send it's logging to a server application using socket
communication. Both programs are written in C++.
From the few things I could find on the internet about the use of
the ServerSocket class, I was not able to create something that
works. Most of these only talk about the client side and use the
java substitute log4j for the server side.
If someone could point me to some example code, that would be
extremely helpful.
Thanks in advance,
Ruud
log4cxx 0.9.7 came with an implementation of both the client and
server side for SocketAppender, but used its own format that was not
platform independent. So if the sender and receiver differed in
endianness, character type, int length or the like, bad things would
happen.
log4cxx 0.10.0 replaced that with an implementation that produced a
stream format compatible with log4j's format (the Java serialization
of its LoggingEvent class). This allows interoperability with
Chainsaw and eliminated the platform variation of the format.
There is a huge degree of variability allowed with Java serialization
so it is much easier to write a logging event that can be read by Java
serialization than reliably read a logging event written by Java
serialization. You could write code that read log4cxx's specific take
on it, but that would be unlikely to reliably read events from log4j.
If you were going to receive events from log4cxx, I would suggest
using the XMLSocketAppender as the format would require less custom
code to parse the stream format. I'm sorry, but I'm not aware of any
sample code for it.
