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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)
- */
- #include <stdexcept>
- #include <string>
- #include <iostream>
- #include <boost/smart_ptr/shared_ptr.hpp>
- #include <boost/lambda/lambda.hpp>
- #include <boost/date_time/posix_time/posix_time.hpp>
- #include <boost/log/common.hpp>
- #include <boost/log/expressions.hpp>
- #include <boost/log/attributes.hpp>
- #include <boost/log/sinks.hpp>
- #include <boost/log/sources/logger.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;
- typedef sinks::synchronous_sink< sinks::text_file_backend > file_sink;
- //[ example_sinks_xml_file_collecting
- void init_file_collecting(boost::shared_ptr< file_sink > sink)
- {
- sink->locked_backend()->set_file_collector(sinks::file::make_collector(
- keywords::target = "logs", /*< the target directory >*/
- keywords::max_size = 16 * 1024 * 1024, /*< maximum total size of the stored files, in bytes >*/
- keywords::min_free_space = 100 * 1024 * 1024, /*< minimum free space on the drive, in bytes >*/
- keywords::max_files = 512 /*< maximum number of stored files >*/
- ));
- }
- //]
- #if 0
- //[ example_sinks_xml_file
- // Complete file sink type
- typedef sinks::synchronous_sink< sinks::text_file_backend > file_sink;
- void write_header(sinks::text_file_backend::stream_type& file)
- {
- file << "<?xml version=\"1.0\"?>\n<log>\n";
- }
- void write_footer(sinks::text_file_backend::stream_type& file)
- {
- file << "</log>\n";
- }
- void init_logging()
- {
- // Create a text file sink
- boost::shared_ptr< file_sink > sink(new file_sink(
- keywords::file_name = "%Y%m%d_%H%M%S_%5N.xml", /*< the resulting file name pattern >*/
- keywords::rotation_size = 16384 /*< rotation size, in characters >*/
- ));
- sink->set_formatter
- (
- expr::format("\t<record id=\"%1%\" timestamp=\"%2%\">%3%</record>")
- % expr::attr< unsigned int >("RecordID")
- % expr::attr< boost::posix_time::ptime >("TimeStamp")
- % expr::xml_decor[ expr::stream << expr::smessage ] /*< the log message has to be decorated, if it contains special characters >*/
- );
- // Set header and footer writing functors
- sink->locked_backend()->set_open_handler(&write_header);
- sink->locked_backend()->set_close_handler(&write_footer);
- // Add the sink to the core
- logging::core::get()->add_sink(sink);
- }
- //]
- #endif
- //[ example_sinks_xml_file_final
- void init_logging()
- {
- // Create a text file sink
- boost::shared_ptr< file_sink > sink(new file_sink(
- keywords::file_name = "%Y%m%d_%H%M%S_%5N.xml",
- keywords::rotation_size = 16384
- ));
- // Set up where the rotated files will be stored
- init_file_collecting(sink);
- // Upon restart, scan the directory for files matching the file_name pattern
- sink->locked_backend()->scan_for_files();
- sink->set_formatter
- (
- expr::format("\t<record id=\"%1%\" timestamp=\"%2%\">%3%</record>")
- % expr::attr< unsigned int >("RecordID")
- % expr::attr< boost::posix_time::ptime >("TimeStamp")
- % expr::xml_decor[ expr::stream << expr::smessage ]
- );
- // Set header and footer writing functors
- namespace bll = boost::lambda;
- sink->locked_backend()->set_open_handler
- (
- bll::_1 << "<?xml version=\"1.0\"?>\n<log>\n"
- );
- sink->locked_backend()->set_close_handler
- (
- bll::_1 << "</log>\n"
- );
- // Add the sink to the core
- logging::core::get()->add_sink(sink);
- }
- //]
- enum { LOG_RECORDS_TO_WRITE = 2000 };
- int main(int argc, char* argv[])
- {
- try
- {
- // Initialize logging library
- init_logging();
- // And also add some attributes
- logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
- logging::core::get()->add_global_attribute("RecordID", attrs::counter< unsigned int >());
- // Do some logging
- src::logger lg;
- for (unsigned int i = 0; i < LOG_RECORDS_TO_WRITE; ++i)
- {
- BOOST_LOG(lg) << "XML log record " << i;
- }
- // Test that XML character decoration works
- BOOST_LOG(lg) << "Special XML characters: &, <, >, \", '";
- return 0;
- }
- catch (std::exception& e)
- {
- std::cout << "FAILURE: " << e.what() << std::endl;
- return 1;
- }
- }
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