Robert Middleton created LOGCXX-515:
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Summary: Add macros to utilize libfmt formatting for messages
Key: LOGCXX-515
URL: https://issues.apache.org/jira/browse/LOGCXX-515
Project: Log4cxx
Issue Type: New Feature
Reporter: Robert Middleton
Assignee: Robert Middleton
Create macros that use fmt::format to create the log message.
The prototype looks like this:
{code:java}
#define LOG4CXX_INFO_FMT(logger, ...) do { \
if (logger->isInfoEnabled()) {\
logger->forcedLog(::log4cxx::Level::getInfo(),
fmt::format( __VA_ARGS__ ), LOG4CXX_LOCATION); }} while (0)
{code}
Usage:
{code:java}
LOG4CXX_INFO_FMT( logger, "This is a message that has some kind of {}
information in it", "useful" );
{code}
This is slightly faster at runtime than using the MessageBuffer class with
operator<< all the time, and much clearer. Conveniently, the coloring provided
by libfmt also shows up on the output.
is there a better name than LOG4CXX_INFO_FMT?
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