1 /*
2 * Copyright Andrey Semashev 2007 - 2015.
3 * Distributed under the Boost Software License, Version 1.0.
4 * (See accompanying file LICENSE_1_0.txt or copy at
5 * http://www.boost.org/LICENSE_1_0.txt)
6 */
7
8 #include <boost/date_time/posix_time/posix_time_types.hpp>
9 #include <boost/log/trivial.hpp>
10 #include <boost/log/expressions.hpp>
11 #include <boost/log/sources/severity_logger.hpp>
12 #include <boost/log/sources/record_ostream.hpp>
13 #include <boost/log/utility/setup/file.hpp>
14 #include <boost/log/utility/setup/common_attributes.hpp>
15 #include <boost/log/support/date_time.hpp>
16
17 namespace logging = boost::log;
18 namespace src = boost::log::sources;
19 namespace expr = boost::log::expressions;
20 namespace keywords = boost::log::keywords;
21
22 #if 1
23
24 //[ example_tutorial_formatters_stream
init()25 void init()
26 {
27 logging::add_file_log
28 (
29 keywords::file_name = "sample_%N.log",
30 // This makes the sink to write log records that look like this:
31 // 1: <normal> A normal severity message
32 // 2: <error> An error severity message
33 keywords::format =
34 (
35 expr::stream
36 << expr::attr< unsigned int >("LineID")
37 << ": <" << logging::trivial::severity
38 << "> " << expr::smessage
39 )
40 );
41 }
42 //]
43
44 #else
45
46 //[ example_tutorial_formatters_stream_date_time
init()47 void init()
48 {
49 logging::add_file_log
50 (
51 keywords::file_name = "sample_%N.log",
52 // This makes the sink to write log records that look like this:
53 // YYYY-MM-DD HH:MI:SS: <normal> A normal severity message
54 // YYYY-MM-DD HH:MI:SS: <error> An error severity message
55 keywords::format =
56 (
57 expr::stream
58 << expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S")
59 << ": <" << logging::trivial::severity
60 << "> " << expr::smessage
61 )
62 );
63 }
64 //]
65
66 #endif
67
main(int,char * [])68 int main(int, char*[])
69 {
70 init();
71 logging::add_common_attributes();
72
73 using namespace logging::trivial;
74 src::severity_logger< severity_level > lg;
75
76 BOOST_LOG_SEV(lg, trace) << "A trace severity message";
77 BOOST_LOG_SEV(lg, debug) << "A debug severity message";
78 BOOST_LOG_SEV(lg, info) << "An informational severity message";
79 BOOST_LOG_SEV(lg, warning) << "A warning severity message";
80 BOOST_LOG_SEV(lg, error) << "An error severity message";
81 BOOST_LOG_SEV(lg, fatal) << "A fatal severity message";
82
83 return 0;
84 }
85