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- /*
- * 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)
- */
- /*!
- * \file main.cpp
- * \author Andrey Semashev
- * \date 01.12.2012
- *
- * \brief An example of wide character logging.
- */
- #include <iostream>
- #include <boost/locale/generator.hpp>
- #include <boost/date_time/posix_time/posix_time_types.hpp>
- #include <boost/log/common.hpp>
- #include <boost/log/expressions.hpp>
- #include <boost/log/utility/setup/file.hpp>
- #include <boost/log/utility/setup/console.hpp>
- #include <boost/log/utility/setup/common_attributes.hpp>
- #include <boost/log/sources/logger.hpp>
- #include <boost/log/support/date_time.hpp>
- namespace logging = boost::log;
- namespace sinks = boost::log::sinks;
- namespace attrs = boost::log::attributes;
- namespace src = boost::log::sources;
- namespace expr = boost::log::expressions;
- namespace keywords = boost::log::keywords;
- //[ example_wide_char_severity_level_definition
- enum severity_level
- {
- normal,
- notification,
- warning,
- error,
- critical
- };
- template< typename CharT, typename TraitsT >
- inline std::basic_ostream< CharT, TraitsT >& operator<< (
- std::basic_ostream< CharT, TraitsT >& strm, severity_level lvl)
- {
- static const char* const str[] =
- {
- "normal",
- "notification",
- "warning",
- "error",
- "critical"
- };
- if (static_cast< std::size_t >(lvl) < (sizeof(str) / sizeof(*str)))
- strm << str[lvl];
- else
- strm << static_cast< int >(lvl);
- return strm;
- }
- //]
- //[ example_wide_char_logging_initialization
- // Declare attribute keywords
- BOOST_LOG_ATTRIBUTE_KEYWORD(severity, "Severity", severity_level)
- BOOST_LOG_ATTRIBUTE_KEYWORD(timestamp, "TimeStamp", boost::posix_time::ptime)
- void init_logging()
- {
- boost::shared_ptr< sinks::synchronous_sink< sinks::text_file_backend > > sink = logging::add_file_log
- (
- "sample.log",
- keywords::format = expr::stream
- << expr::format_date_time(timestamp, "%Y-%m-%d, %H:%M:%S.%f")
- << " <" << severity.or_default(normal)
- << "> " << expr::message
- );
- // The sink will perform character code conversion as needed, according to the locale set with imbue()
- std::locale loc = boost::locale::generator()("en_US.UTF-8");
- sink->imbue(loc);
- // Let's add some commonly used attributes, like timestamp and record counter.
- logging::add_common_attributes();
- }
- //]
- //[ example_wide_char_logging
- void test_narrow_char_logging()
- {
- // Narrow character logging still works
- src::logger lg;
- BOOST_LOG(lg) << "Hello, World! This is a narrow character message.";
- }
- void test_wide_char_logging()
- {
- src::wlogger lg;
- BOOST_LOG(lg) << L"Hello, World! This is a wide character message.";
- // National characters are also supported
- const wchar_t national_chars[] = { 0x041f, 0x0440, 0x0438, 0x0432, 0x0435, 0x0442, L',', L' ', 0x043c, 0x0438, 0x0440, L'!', 0 };
- BOOST_LOG(lg) << national_chars;
- // Now, let's try logging with severity
- src::wseverity_logger< severity_level > slg;
- BOOST_LOG_SEV(slg, normal) << L"A normal severity message, will not pass to the file";
- BOOST_LOG_SEV(slg, warning) << L"A warning severity message, will pass to the file";
- BOOST_LOG_SEV(slg, error) << L"An error severity message, will pass to the file";
- }
- //]
- int main(int argc, char* argv[])
- {
- init_logging();
- test_narrow_char_logging();
- test_wide_char_logging();
- return 0;
- }
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