log4cxx

I want to log to different files in my code. How can i do that in Log4cxx with xml configuration or programatically in code... Suppose that I have 1.k,k+1,..n components. They run in the same application I want component k log to Logger-k, k+1 component log to Logger-k+1 at the same time Update: Logger.addAppender() approach: log4cxx::helpers::Pool p; std::string paramAppender = "appxNormalAppender"; std::string paramFileName = "\\Logs\\MyLog.txt"; LOG4CXX_DECODE_CHAR(logAppender, paramAppender ); LOG4CXX_DECODE_CHAR(logFileName, paramFileName ); FileAppenderPtr fileAppender = logger-

Is it possible to write a custom appender for log4cxx and have it configurable via a properties file (like the built-in appenders)? I'd prefer doing this without having to rebuild log4cxx (e.g. by deriving/extending an existing appender), if possible. Can you point me toward an example? brlcad You can inherit from AppenderSkeleton or WriterAppender and get the same underlying behaviors without having to rebuilt log4cxx. http://svn.apache.org/viewvc/incubator/log4cxx/trunk/src/test/cpp/vectorappender.h?view=markup http://svn.apache.org/viewvc/incubator/log4cxx/trunk/src/test/cpp/vectorappender

Say I have a class A and an operator<< declared like so: // A.h class A { // A stuff }; std::ostream& operator<<(std::ostream& os, const A& a); somewhere else I use my logger with A: LoggerPtr logger(LogManager::getLogger("ThisObject")); A a; LOG4CXX_INFO(logger, "A: " << a); The compiler is complaining: binary '<<' : no operator found which takes a right-hand operand of type 'const A' (or there is no acceptable conversion) D:\dev\cpp\lib\apache-log4cxx\log4cxx\include\log4cxx\helpers\messagebuffer.h 190 This error takes me to the declaration of the operator<< : // messagebuffer.h template

This is driving me crazy, I'm trying to building the log4cxx library in order to use in a c++ project I've been using. I'm on a win7 host running VS2010 express c++ edition. I've followed the directions per the log4cxx directions ( ) including downloading apr and apr-util and motifying the .hw files, but I unfortunately, when ever I try to load the log4cxx.dsw solution and convert it to the current VS, I receive an error trying to build apr.apr/dsw and a bunch of other dependent .dsw files. Any suggestions? Specifically, what I am seeing is: The Project file 'C:\...projects\apr-util\xml\expat