log/example/doc/sinks_simple_event_log.cpp
2015-01-25 17:32:33 +03:00

102 lines
2.7 KiB
C++

/*
* Copyright Andrey Semashev 2007 - 2015.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
#include <stdexcept>
#include <string>
#include <iostream>
#include <boost/smart_ptr/shared_ptr.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/log/common.hpp>
#if defined(BOOST_WINDOWS) && !defined(BOOST_LOG_WITHOUT_EVENT_LOG)
#include <boost/log/attributes.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/sinks/sync_frontend.hpp>
#include <boost/log/sinks/event_log_backend.hpp>
namespace logging = boost::log;
namespace attrs = boost::log::attributes;
namespace src = boost::log::sources;
namespace sinks = boost::log::sinks;
namespace expr = boost::log::expressions;
namespace keywords = boost::log::keywords;
//[ example_sinks_simple_event_log
// Complete sink type
typedef sinks::synchronous_sink< sinks::simple_event_log_backend > sink_t;
// Define application-specific severity levels
enum severity_level
{
normal,
warning,
error
};
void init_logging()
{
// Create an event log sink
boost::shared_ptr< sink_t > sink(new sink_t());
sink->set_formatter
(
expr::format("%1%: [%2%] - %3%")
% expr::attr< unsigned int >("LineID")
% expr::attr< boost::posix_time::ptime >("TimeStamp")
% expr::smessage
);
// We'll have to map our custom levels to the event log event types
sinks::event_log::custom_event_type_mapping< severity_level > mapping("Severity");
mapping[normal] = sinks::event_log::info;
mapping[warning] = sinks::event_log::warning;
mapping[error] = sinks::event_log::error;
sink->locked_backend()->set_event_type_mapper(mapping);
// Add the sink to the core
logging::core::get()->add_sink(sink);
}
//]
int main(int argc, char* argv[])
{
try
{
// Initialize logging library
init_logging();
// Add some attributes too
logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
logging::core::get()->add_global_attribute("LineID", attrs::counter< unsigned int >());
// Do some logging
src::severity_logger< severity_level > lg(keywords::severity = normal);
BOOST_LOG_SEV(lg, normal) << "Some record for NT event log with normal level";
BOOST_LOG_SEV(lg, warning) << "Some record for NT event log with warning level";
BOOST_LOG_SEV(lg, error) << "Some record for NT event log with error level";
return 0;
}
catch (std::exception& e)
{
std::cout << "FAILURE: " << e.what() << std::endl;
return 1;
}
}
#else
int main(int, char*[])
{
return 0;
}
#endif