549 lines
20 KiB
C++
549 lines
20 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2013.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file support/date_time.hpp
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* \author Andrey Semashev
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* \date 07.11.2012
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*
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* This header enables Boost.DateTime support for Boost.Log.
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*/
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#ifndef BOOST_LOG_SUPPORT_DATE_TIME_HPP_INCLUDED_
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#define BOOST_LOG_SUPPORT_DATE_TIME_HPP_INCLUDED_
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#include <ctime>
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#include <string>
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#include <locale>
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#include <ostream>
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#include <iterator>
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#include <boost/cstdint.hpp>
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#include <boost/move/core.hpp>
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#include <boost/move/utility.hpp>
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#include <boost/date_time/time.hpp>
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#include <boost/date_time/date.hpp>
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#include <boost/date_time/gregorian/gregorian_types.hpp>
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#include <boost/date_time/local_time/local_time_types.hpp>
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#include <boost/date_time/posix_time/posix_time_types.hpp>
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#include <boost/log/detail/config.hpp>
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#include <boost/log/detail/date_time_format_parser.hpp>
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#include <boost/log/detail/light_function.hpp>
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#include <boost/log/detail/decomposed_time.hpp>
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#include <boost/log/detail/date_time_fmt_gen_traits_fwd.hpp>
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#include <boost/log/utility/formatting_ostream.hpp>
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#include <boost/log/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace expressions {
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namespace aux {
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namespace date_time_support {
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template< typename DateT, typename ValueT >
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inline void decompose_date(DateT const& d, boost::log::aux::decomposed_time_wrapper< ValueT >& v)
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{
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typedef typename DateT::ymd_type ymd_type;
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ymd_type ymd = d.year_month_day();
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v.year = ymd.year;
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v.month = ymd.month;
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v.day = ymd.day;
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}
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template< typename TimeDurationT, typename ValueT >
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inline void decompose_time_of_day(TimeDurationT const& tod, boost::log::aux::decomposed_time_wrapper< ValueT >& v)
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{
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v.hours = tod.hours();
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v.minutes = tod.minutes();
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v.seconds = tod.seconds();
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typedef typename TimeDurationT::traits_type traits_type;
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enum
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{
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adjustment_ratio = (traits_type::ticks_per_second > boost::log::aux::decomposed_time::subseconds_per_second ?
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traits_type::ticks_per_second / boost::log::aux::decomposed_time::subseconds_per_second :
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boost::log::aux::decomposed_time::subseconds_per_second / traits_type::ticks_per_second)
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};
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uint64_t frac = tod.fractional_seconds();
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v.subseconds = static_cast< uint32_t >(traits_type::ticks_per_second > boost::log::aux::decomposed_time::subseconds_per_second ? frac / adjustment_ratio : frac * adjustment_ratio);
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}
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template< typename TimeDurationT, typename ValueT >
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inline void decompose_time_duration(TimeDurationT const& dur, boost::log::aux::decomposed_time_wrapper< ValueT >& v)
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{
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if (dur.is_negative())
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{
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v.negative = true;
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(decompose_time_of_day)(-dur, v);
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}
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else
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(decompose_time_of_day)(dur, v);
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}
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template< typename DateDurationT, typename ValueT >
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inline void decompose_date_duration(DateDurationT const& dur, boost::log::aux::decomposed_time_wrapper< ValueT >& v)
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{
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if (dur.is_negative())
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{
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v.negative = true;
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v.day = (-dur).days();
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}
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else
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v.day = dur.days();
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}
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template< typename TimeT, typename ValueT >
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inline void decompose_time(TimeT const& t, boost::log::aux::decomposed_time_wrapper< ValueT >& v)
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{
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(decompose_date)(t.date(), v);
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(decompose_time_of_day)(t.time_of_day(), v);
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}
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} // namespace date_time_support
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template< typename TimeT, typename CharT >
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struct date_time_formatter_generator_traits_impl
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{
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//! Character type
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typedef CharT char_type;
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//! String type
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typedef std::basic_string< char_type > string_type;
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//! Formatting stream type
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typedef basic_formatting_ostream< char_type > stream_type;
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//! Value type
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typedef TimeT value_type;
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//! Formatter function
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typedef boost::log::aux::light_function< void (stream_type&, value_type const&) > formatter_function_type;
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//! Formatter implementation
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class formatter :
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public boost::log::aux::date_time_formatter< boost::log::aux::decomposed_time_wrapper< value_type >, char_type >
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{
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BOOST_COPYABLE_AND_MOVABLE_ALT(formatter)
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private:
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// Do not change this typedef, copy-pasting the inherited class from above will break compilation with MSVC 2012 because it incorrectly binds value_type.
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typedef typename formatter::date_time_formatter_ base_type;
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public:
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typedef typename base_type::result_type result_type;
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// This typedef is needed to work around MSVC 2012 crappy name lookup. Otherwise base_type::value_type is bound instead.
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typedef typename date_time_formatter_generator_traits_impl< TimeT, CharT >::value_type value_type;
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public:
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BOOST_DEFAULTED_FUNCTION(formatter(), {})
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formatter(formatter const& that) : base_type(static_cast< base_type const& >(that)) {}
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formatter(BOOST_RV_REF(formatter) that) { this->swap(that); }
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formatter& operator= (formatter that)
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{
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this->swap(that);
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return *this;
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}
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result_type operator() (stream_type& strm, value_type const& value) const
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{
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if (value.is_not_a_date_time())
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strm << "not-a-date-time";
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else if (value.is_pos_infinity())
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strm << "+infinity";
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else if (value.is_neg_infinity())
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strm << "-infinity";
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else
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{
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boost::log::aux::decomposed_time_wrapper< value_type > val(value);
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date_time_support::decompose_time(value, val);
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base_type::operator() (strm, val);
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}
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}
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};
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//! The function parses format string and constructs formatter function
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static formatter_function_type parse(string_type const& format)
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{
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formatter fmt;
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boost::log::aux::decomposed_time_formatter_builder< formatter, char_type > builder(fmt);
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boost::log::aux::parse_date_time_format(format, builder);
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return formatter_function_type(boost::move(fmt));
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}
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< posix_time::ptime, CharT, VoidT > :
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public date_time_formatter_generator_traits_impl< posix_time::ptime, CharT >
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{
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};
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template< typename TimeT, typename TimeZoneT, typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< local_time::local_date_time_base< TimeT, TimeZoneT >, CharT, VoidT >
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{
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//! Character type
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typedef CharT char_type;
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//! String type
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typedef std::basic_string< char_type > string_type;
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//! Formatting stream type
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typedef basic_formatting_ostream< char_type > stream_type;
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//! Value type
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typedef local_time::local_date_time_base< TimeT, TimeZoneT > value_type;
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//! Formatter function
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typedef boost::log::aux::light_function< void (stream_type&, value_type const&) > formatter_function_type;
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//! Formatter implementation
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class formatter :
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public boost::log::aux::date_time_formatter< boost::log::aux::decomposed_time_wrapper< value_type >, char_type >
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{
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BOOST_COPYABLE_AND_MOVABLE_ALT(formatter)
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private:
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// Do not change this typedef, copy-pasting the inherited class from above will break compilation with MSVC 2012 because it incorrectly binds value_type.
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typedef typename formatter::date_time_formatter_ base_type;
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public:
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typedef typename base_type::result_type result_type;
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typedef typename base_type::context context;
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// This typedef is needed to work around MSVC 2012 crappy name lookup. Otherwise base_type::value_type is bound instead.
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typedef typename date_time_formatter_generator_traits< local_time::local_date_time_base< TimeT, TimeZoneT >, CharT, VoidT >::value_type value_type;
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public:
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BOOST_DEFAULTED_FUNCTION(formatter(), {})
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formatter(formatter const& that) : base_type(static_cast< base_type const& >(that)) {}
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formatter(BOOST_RV_REF(formatter) that) { this->swap(that); }
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formatter& operator= (formatter that)
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{
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this->swap(that);
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return *this;
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}
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result_type operator() (stream_type& strm, value_type const& value) const
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{
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if (value.is_not_a_date_time())
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strm << "not-a-date-time";
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else if (value.is_pos_infinity())
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strm << "+infinity";
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else if (value.is_neg_infinity())
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strm << "-infinity";
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else
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{
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boost::log::aux::decomposed_time_wrapper< value_type > val(value);
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date_time_support::decompose_time(value.local_time(), val);
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base_type::operator() (strm, val);
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}
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}
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public:
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static void format_iso_time_zone(context& ctx)
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{
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ctx.strm << ctx.value.m_time.zone_abbrev(true);
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ctx.strm.flush();
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}
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static void format_extended_iso_time_zone(context& ctx)
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{
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ctx.strm << ctx.value.m_time.zone_name(true);
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ctx.strm.flush();
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}
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};
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class formatter_builder :
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public boost::log::aux::decomposed_time_formatter_builder< formatter, char_type >
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{
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private:
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typedef boost::log::aux::decomposed_time_formatter_builder< formatter, char_type > base_type;
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public:
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explicit formatter_builder(formatter& fmt) : base_type(fmt)
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{
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}
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void on_iso_time_zone()
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{
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this->m_formatter.add_formatter(&formatter::format_iso_time_zone);
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}
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void on_extended_iso_time_zone()
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{
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this->m_formatter.add_formatter(&formatter::format_extended_iso_time_zone);
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}
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};
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//! The function parses format string and constructs formatter function
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static formatter_function_type parse(string_type const& format)
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{
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formatter fmt;
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formatter_builder builder(fmt);
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boost::log::aux::parse_date_time_format(format, builder);
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return formatter_function_type(boost::move(fmt));
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}
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};
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template< typename DateT, typename CharT >
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struct date_formatter_generator_traits_impl
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{
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//! Character type
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typedef CharT char_type;
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//! String type
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typedef std::basic_string< char_type > string_type;
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//! Formatting stream type
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typedef basic_formatting_ostream< char_type > stream_type;
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//! Value type
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typedef DateT value_type;
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//! Formatter function
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typedef boost::log::aux::light_function< void (stream_type&, value_type const&) > formatter_function_type;
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//! Formatter implementation
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class formatter :
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public boost::log::aux::date_time_formatter< boost::log::aux::decomposed_time_wrapper< value_type >, char_type >
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{
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BOOST_COPYABLE_AND_MOVABLE_ALT(formatter)
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private:
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// Do not change this typedef, copy-pasting the inherited class from above will break compilation with MSVC 2012 because it incorrectly binds value_type.
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typedef typename formatter::date_time_formatter_ base_type;
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public:
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typedef typename base_type::result_type result_type;
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// This typedef is needed to work around MSVC 2012 crappy name lookup. Otherwise base_type::value_type is bound instead.
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typedef typename date_formatter_generator_traits_impl< DateT, CharT >::value_type value_type;
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public:
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BOOST_DEFAULTED_FUNCTION(formatter(), {})
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formatter(formatter const& that) : base_type(static_cast< base_type const& >(that)) {}
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formatter(BOOST_RV_REF(formatter) that) { this->swap(that); }
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formatter& operator= (formatter that)
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{
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this->swap(that);
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return *this;
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}
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result_type operator() (stream_type& strm, value_type const& value) const
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{
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if (value.is_not_a_date())
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strm << "not-a-date-time";
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else if (value.is_pos_infinity())
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strm << "+infinity";
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else if (value.is_neg_infinity())
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strm << "-infinity";
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else
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{
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boost::log::aux::decomposed_time_wrapper< value_type > val(value);
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date_time_support::decompose_date(value, val);
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base_type::operator() (strm, val);
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}
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}
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};
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//! The function parses format string and constructs formatter function
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static formatter_function_type parse(string_type const& format)
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{
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formatter fmt;
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boost::log::aux::decomposed_time_formatter_builder< formatter, char_type > builder(fmt);
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boost::log::aux::parse_date_format(format, builder);
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return formatter_function_type(boost::move(fmt));
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}
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< gregorian::date, CharT, VoidT > :
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public date_formatter_generator_traits_impl< gregorian::date, CharT >
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{
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};
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template< typename TimeDurationT, typename CharT >
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struct time_duration_formatter_generator_traits_impl
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{
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//! Character type
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typedef CharT char_type;
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//! String type
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typedef std::basic_string< char_type > string_type;
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//! Formatting stream type
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typedef basic_formatting_ostream< char_type > stream_type;
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//! Value type
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typedef TimeDurationT value_type;
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//! Formatter function
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typedef boost::log::aux::light_function< void (stream_type&, value_type const&) > formatter_function_type;
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//! Formatter implementation
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class formatter :
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public boost::log::aux::date_time_formatter< boost::log::aux::decomposed_time_wrapper< value_type >, char_type >
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{
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BOOST_COPYABLE_AND_MOVABLE_ALT(formatter)
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private:
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// Do not change this typedef, copy-pasting the inherited class from above will break compilation with MSVC 2012 because it incorrectly binds value_type.
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typedef typename formatter::date_time_formatter_ base_type;
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public:
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typedef typename base_type::result_type result_type;
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// This typedef is needed to work around MSVC 2012 crappy name lookup. Otherwise base_type::value_type is bound instead.
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typedef typename time_duration_formatter_generator_traits_impl< TimeDurationT, CharT >::value_type value_type;
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public:
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BOOST_DEFAULTED_FUNCTION(formatter(), {})
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formatter(formatter const& that) : base_type(static_cast< base_type const& >(that)) {}
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formatter(BOOST_RV_REF(formatter) that) { this->swap(that); }
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formatter& operator= (formatter that)
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{
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this->swap(that);
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return *this;
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}
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result_type operator() (stream_type& strm, value_type const& value) const
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{
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if (value.is_not_a_date_time())
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strm << "not-a-date-time";
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else if (value.is_pos_infinity())
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strm << "+infinity";
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else if (value.is_neg_infinity())
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strm << "-infinity";
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else
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{
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boost::log::aux::decomposed_time_wrapper< value_type > val(value);
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date_time_support::decompose_time_duration(value, val);
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base_type::operator() (strm, val);
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}
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}
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};
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//! The function parses format string and constructs formatter function
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static formatter_function_type parse(string_type const& format)
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{
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formatter fmt;
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boost::log::aux::decomposed_time_formatter_builder< formatter, char_type > builder(fmt);
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boost::log::aux::parse_time_format(format, builder);
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return formatter_function_type(boost::move(fmt));
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}
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< posix_time::time_duration, CharT, VoidT > :
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public time_duration_formatter_generator_traits_impl< posix_time::time_duration, CharT >
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{
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< posix_time::hours, CharT, VoidT > :
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public time_duration_formatter_generator_traits_impl< posix_time::hours, CharT >
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{
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< posix_time::minutes, CharT, VoidT > :
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public time_duration_formatter_generator_traits_impl< posix_time::minutes, CharT >
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{
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< posix_time::seconds, CharT, VoidT > :
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public time_duration_formatter_generator_traits_impl< posix_time::seconds, CharT >
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{
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};
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template< typename BaseDurationT, uint64_t FracOfSecondV, typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< date_time::subsecond_duration< BaseDurationT, FracOfSecondV >, CharT, VoidT > :
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public time_duration_formatter_generator_traits_impl< date_time::subsecond_duration< BaseDurationT, FracOfSecondV >, CharT >
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{
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};
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template< typename DateDurationT, typename CharT >
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struct date_duration_formatter_generator_traits_impl
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{
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//! Character type
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typedef CharT char_type;
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//! String type
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typedef std::basic_string< char_type > string_type;
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//! Formatting stream type
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typedef basic_formatting_ostream< char_type > stream_type;
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//! Value type
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typedef DateDurationT value_type;
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//! Formatter function
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typedef boost::log::aux::light_function< void (stream_type&, value_type const&) > formatter_function_type;
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//! Formatter implementation
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class formatter :
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public boost::log::aux::date_time_formatter< boost::log::aux::decomposed_time_wrapper< value_type >, char_type >
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{
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BOOST_COPYABLE_AND_MOVABLE_ALT(formatter)
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private:
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// Do not change this typedef, copy-pasting the inherited class from above will break compilation with MSVC 2012 because it incorrectly binds value_type.
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typedef typename formatter::date_time_formatter_ base_type;
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public:
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typedef typename base_type::result_type result_type;
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// This typedef is needed to work around MSVC 2012 crappy name lookup. Otherwise base_type::value_type is bound instead.
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typedef typename date_duration_formatter_generator_traits_impl< DateDurationT, CharT >::value_type value_type;
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public:
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BOOST_DEFAULTED_FUNCTION(formatter(), {})
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formatter(formatter const& that) : base_type(static_cast< base_type const& >(that)) {}
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formatter(BOOST_RV_REF(formatter) that) { this->swap(that); }
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formatter& operator= (formatter that)
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{
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this->swap(that);
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return *this;
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}
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result_type operator() (stream_type& strm, value_type const& value) const
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{
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if (value.is_not_a_date())
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strm << "not-a-date-time";
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else if (value.is_pos_infinity())
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strm << "+infinity";
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else if (value.is_neg_infinity())
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strm << "-infinity";
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else
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{
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boost::log::aux::decomposed_time_wrapper< value_type > val(value);
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date_time_support::decompose_date_duration(value, val);
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base_type::operator() (strm, val);
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}
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}
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};
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//! The function parses format string and constructs formatter function
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static formatter_function_type parse(string_type const& format)
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{
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formatter fmt;
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boost::log::aux::decomposed_time_formatter_builder< formatter, char_type > builder(fmt);
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boost::log::aux::parse_date_format(format, builder);
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return formatter_function_type(boost::move(fmt));
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}
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};
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template< typename CharT, typename VoidT >
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struct date_time_formatter_generator_traits< gregorian::date_duration, CharT, VoidT > :
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public date_formatter_generator_traits_impl< gregorian::date_duration, CharT >
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{
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};
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} // namespace aux
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} // namespace expressions
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif // BOOST_LOG_SUPPORT_DATE_TIME_HPP_INCLUDED_
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