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#include <log4cplus/logger.h>
#include <log4cplus/configurator.h>
#include <log4cplus/spi/loggingevent.h>
#include <log4cplus/helpers/loglog.h>
#include <log4cplus/helpers/stringhelper.h>
#include <log4cplus/helpers/fileinfo.h>
#include <log4cplus/loggingmacros.h>
#include <log4cplus/consoleappender.h>
#include <log4cplus/initializer.h>
using namespace std;
using namespace log4cplus;
using namespace log4cplus::spi;
using namespace log4cplus::helpers;
void
printDebug()
{
Logger logger = Logger::getInstance(LOG4CPLUS_TEXT("log"));
LOG4CPLUS_TRACE_METHOD(logger, LOG4CPLUS_TEXT("::printDebug()"));
LOG4CPLUS_DEBUG(logger, "This is a DEBUG message");
LOG4CPLUS_INFO(logger, "This is a INFO message");
LOG4CPLUS_WARN(logger, "This is a WARN message");
LOG4CPLUS_ERROR(logger, "This is a ERROR message");
LOG4CPLUS_FATAL(logger, "This is a FATAL message");
LOG4CPLUS_INFO(logger, "visible");
LOG4CPLUS_INFO(logger, "invisible");
}
void
test_1 (Logger & root, log4cplus::tstring const & file)
{
PropertyConfigurator::doConfigure(file);
LOG4CPLUS_WARN(root, "Testing....");
}
void
test_2 (Logger & root)
{
LOG4CPLUS_WARN(root, "Testing std::function<> filter....");
root.removeAllAppenders ();
auto filterFunction = [=](const InternalLoggingEvent& event)
-> FilterResult {
log4cplus::tstring const & msg = event.getMessage ();
if (event.getLogLevel () >= WARN_LOG_LEVEL)
{
getLogLog ().debug (
LOG4CPLUS_TEXT ("function filter: going neutral on event: ")
+ msg);
return NEUTRAL;
}
else if (msg == LOG4CPLUS_TEXT ("visible"))
{
getLogLog ().debug (
LOG4CPLUS_TEXT ("function filter: accepting event: ")
+ msg);
return ACCEPT;
}
else
{
getLogLog ().debug (
LOG4CPLUS_TEXT ("function filter: denying event: ")
+ msg);
return DENY;
}
};
SharedAppenderPtr appender (new ConsoleAppender);
appender->setName (LOG4CPLUS_TEXT ("SECOND"));
appender->addFilter (FilterPtr (new FunctionFilter (filterFunction)));
root.addAppender (std::move (appender));
}
void
test_3 (Logger & root)
{
LOG4CPLUS_WARN(root,
LOG4CPLUS_TEXT("Testing std::function<> filter,")
LOG4CPLUS_TEXT(" 2nd overload of addFilter()...."));
root.removeAllAppenders ();
SharedAppenderPtr appender (new ConsoleAppender);
appender->setName (LOG4CPLUS_TEXT ("THIRD"));
appender->addFilter (
[=](const InternalLoggingEvent & event)
-> FilterResult {
getLogLog ().debug (
LOG4CPLUS_TEXT ("function filter: accepting event: ")
+ event.getMessage ());
return ACCEPT;
});
root.addAppender (std::move (appender));
}
log4cplus::tstring
getPropertiesFileArgument (int argc, char * argv[])
{
if (argc >= 2)
{
char const * arg = argv[1];
log4cplus::tstring file = LOG4CPLUS_C_STR_TO_TSTRING (arg);
log4cplus::helpers::FileInfo fi;
if (getFileInfo (&fi, file) == 0)
return file;
}
return LOG4CPLUS_TEXT ("log4cplus.properties");
}
int
main(int argc, char * argv[])
{
tcout << "Entering main()..." << endl;
log4cplus::Initializer initializer;
LogLog::getLogLog()->setInternalDebugging(true);
Logger root = Logger::getRoot();
try {
tcout << LOG4CPLUS_TEXT ("Test filters set up through properties file.")
<< std::endl;
test_1 (root, getPropertiesFileArgument (argc, argv));
printDebug();
tcout << LOG4CPLUS_TEXT ("Test custom function filter.")
<< std::endl;
test_2 (root);
printDebug();
tcout << LOG4CPLUS_TEXT ("Test custom function filter added using")
<< LOG4CPLUS_TEXT (" second overload of addFilter().")
<< std::endl;
test_3 (root);
printDebug();
}
catch(...) {
tcout << "Exception..." << endl;
LOG4CPLUS_FATAL(root, "Exception occurred...");
}
tcout << "Exiting main()..." << endl;
return 0;
}
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