Questions tagged [log4cxx]

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Almost every large application includes its own logging or tracing API. Inserting log statements into code is a low-tech method for debugging it. It may also be the only way because debuggers are not always available or applicable. This is usually the case for multithreaded applications and distributed applications at large.

Experience indicates that logging is an important component of the development cycle. It offeres several advantages. It provides precise context about a run of the application. Once inserted into the code, the generation of logging output requires no human intervention. Moreover, log output can be saved in persistent medium to be studied at a later time. In addition to its use in the development cycle, a sufficiently rich logging package can also be viewed as an auditing tool.

Logging does have its drawbacks. It can slow down an application. If too verbose, it can cause scrolling blindness. To alleviate these concerns, log4cxx is designed to be reliable, fast and extensible. Since logging is rarely the main focus of an application, the log4cxx API strives to be simple to understand and to use.

Official Website: http://logging.apache.org/log4cxx/

Useful Links:

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building log4cxx in vs 2010 c++

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…
Lexicon
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How to overload the ostream operator << to make it work with log4cxx in C++?

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…
mister why
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How to log Process id using Log4cxx or log4j

I am using log4cxx my project and i can able to log current thread id using [%t] marker, how to log process id in it or log4j?. I am using ConversionPattern & xml based configuration file. Thanks,
CRK
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log4c documentation

gcc 4.4.3 c89 I am just getting started with log4c. However, there is very little documentation out there for how to get started with it. I am wondering does anyone know of any tutorials, articles on how to get started?
ant2009
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C++ Logging Library Setup

I've been trying for about 2 weeks now to get a logging library to work with. I've tried Log4cxx, Log4cpp, log4cplus and boost.log. The problem isn't that none of these work for me, it's that I can't figure out how to get them to work at all. I…
Shenlong55
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Boost.Log: Support file name and line number

I am trying to make my team go away from log4cxx and try to use Boost.Log v2 instead. Our current log4cxx pattern is rather simple: log4cxx::helpers::Properties prop; prop.setProperty("log4j.rootLogger","DEBUG,…
malat
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different loggers used with libraries

My problem concerns logging of library classes (classes that are used inside libraries), We are currently using log4cxx but the log4j library implements the same concepts. Say i have a process that have several entities, A,B and C. Each of them use…
user1708860
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Using utf-8 characters in log4cxx

I need to be able to use utf-8-encoded strings with log4cxx. I can print the strings just fine with std::cout (the characters are displayed correctly). Using log4cxx, i.e. putting the strings into the LOG4CXX_DEBUG() macro with a ConsoleAppender…
arne
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mixing log4cxx and log4net

I have a c++ application which logs to some file using log4cxx (RollingFile appender). I want to log into the same file, at the same time, from another module written in c#; so i configured log4net to use the same file, but i can't get the new…
user25800
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Log to different file with 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 …
Novalis
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Log4cxx custom appender

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…
Assaf Lavie
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What log4net pattern provides for filename without the full path

My log4net conversion pattern looks like this The %file spits out the full path covering almost one full line in my console window. How can I get just the file name…
Gullu
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C++ inline String formatting and numeric conversion

C# has a nice static method String.Format(string, params string[]); that returns a new string with the formatting and values that are provided. Is there an equivalent in C++? The reason is because I'm using log4cxx and want to take advantage of…
stackoverflow727
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Logging and filtering using log4cxx

I am working on the application where I need logging and filtering feature. I am using c++. I came to know about the log4cxx support logging. I am getting difficulty in filtering . I have five fields MAcID Date and time Command type …
Vikram Ranabhatt
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Failed to build Log4cxx-0.10.0 on Mac OS X Yosemite 10.10.3

I am trying to build Log4cxx-0.10.0 on Mac OS X Yosemite(Xcode 6.3.1). I ran cd thirdparty/apr-1.4.6/ CC="gcc -m32" ./configure make cd thirdparty/apr-util-1.5.2/ CC="gcc -m32" ./configure --with-apr=../apr-1.4.6/ --without-ldap make sudo make…
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