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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// 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)
//
#define BOOST_LOCALE_SOURCE
#include <boost/locale/date_time_facet.hpp>
#include <boost/locale/date_time.hpp>
#include <boost/locale/formatting.hpp>
#include <boost/locale/hold_ptr.hpp>
#include "all_generator.hpp"
#include <boost/thread.hpp>
#include <unicode/calendar.h>
#include <unicode/gregocal.h>
#include <unicode/utypes.h>
#include <memory>
#include <math.h>
#include "cdata.hpp"
#include "uconv.hpp"
#include "time_zone.hpp"
#include <iostream>
namespace boost {
namespace locale {
namespace impl_icu {
static void check_and_throw_dt(UErrorCode &e)
{
if(U_FAILURE(e)) {
throw date_time_error(u_errorName(e));
}
}
using period::marks::period_mark;
static UCalendarDateFields to_icu(period::marks::period_mark f)
{
using namespace period::marks;
switch(f) {
case era: return UCAL_ERA;
case year: return UCAL_YEAR;
case extended_year: return UCAL_EXTENDED_YEAR;
case month: return UCAL_MONTH;
case day: return UCAL_DATE;
case day_of_year: return UCAL_DAY_OF_YEAR;
case day_of_week: return UCAL_DAY_OF_WEEK;
case day_of_week_in_month: return UCAL_DAY_OF_WEEK_IN_MONTH;
case day_of_week_local: return UCAL_DOW_LOCAL;
case hour: return UCAL_HOUR_OF_DAY;
case hour_12: return UCAL_HOUR;
case am_pm: return UCAL_AM_PM;
case minute: return UCAL_MINUTE;
case second: return UCAL_SECOND;
case week_of_year: return UCAL_WEEK_OF_YEAR;
case week_of_month: return UCAL_WEEK_OF_MONTH;
default:
throw std::invalid_argument("Invalid date_time period type");
}
}
class calendar_impl : public abstract_calendar {
public:
calendar_impl(cdata const &dat)
{
UErrorCode err=U_ZERO_ERROR;
calendar_.reset(icu::Calendar::createInstance(dat.locale,err));
check_and_throw_dt(err);
#if U_ICU_VERSION_MAJOR_NUM*100 + U_ICU_VERSION_MINOR_NUM < 402
// workaround old/invalid data, it should be 4 in general
calendar_->setMinimalDaysInFirstWeek(4);
#endif
encoding_ = dat.encoding;
}
calendar_impl(calendar_impl const &other)
{
calendar_.reset(other.calendar_->clone());
encoding_ = other.encoding_;
}
calendar_impl *clone() const
{
return new calendar_impl(*this);
}
void set_value(period::marks::period_mark p,int value)
{
calendar_->set(to_icu(p),int32_t(value));
}
int get_value(period::marks::period_mark p,value_type type) const
{
UErrorCode err=U_ZERO_ERROR;
int v=0;
if(p==period::marks::first_day_of_week) {
guard l(lock_);
v=calendar_->getFirstDayOfWeek(err);
}
else {
UCalendarDateFields uper=to_icu(p);
guard l(lock_);
switch(type) {
case absolute_minimum:
v=calendar_->getMinimum(uper);
break;
case actual_minimum:
v=calendar_->getActualMinimum(uper,err);
break;
case greatest_minimum:
v=calendar_->getGreatestMinimum(uper);
break;
case current:
v=calendar_->get(uper,err);
break;
case least_maximum:
v=calendar_->getLeastMaximum(uper);
break;
case actual_maximum:
v=calendar_->getActualMaximum(uper,err);
break;
case absolute_maximum:
v=calendar_->getMaximum(uper);
break;
}
}
check_and_throw_dt(err);
return v;
}
virtual void set_time(posix_time const &p)
{
double utime = p.seconds * 1000.0 + p.nanoseconds / 1000000.0;
UErrorCode code=U_ZERO_ERROR;
calendar_->setTime(utime,code);
check_and_throw_dt(code);
}
virtual void normalize()
{
// Can't call complete() explicitly (protected)
// calling get wich calls complete
UErrorCode code=U_ZERO_ERROR;
calendar_->get(UCAL_YEAR,code);
check_and_throw_dt(code);
}
virtual posix_time get_time() const
{
UErrorCode code=U_ZERO_ERROR;
double rtime = 0;
{
guard l(lock_);
rtime = calendar_->getTime(code);
}
check_and_throw_dt(code);
rtime/=1000.0;
double secs = floor(rtime);
posix_time res;
res.seconds = static_cast<int64_t>(secs);
res.nanoseconds = static_cast<uint32_t>((rtime - secs) / 1e9);
if(res.nanoseconds > 999999999)
res.nanoseconds = 999999999;
return res;
}
virtual void set_option(calendar_option_type opt,int /*v*/)
{
switch(opt) {
case is_gregorian:
throw date_time_error("is_gregorian is not settable options for calendar");
case is_dst:
throw date_time_error("is_dst is not settable options for calendar");
default:
;
}
}
virtual int get_option(calendar_option_type opt) const
{
switch(opt) {
case is_gregorian:
return dynamic_cast<icu::GregorianCalendar const *>(calendar_.get())!=0;
case is_dst:
{
guard l(lock_);
UErrorCode err = U_ZERO_ERROR;
bool res = ( calendar_->inDaylightTime(err) != 0 );
check_and_throw_dt(err);
return res;
}
default:
return 0;
}
}
virtual void adjust_value(period::marks::period_mark p,update_type u,int difference)
{
UErrorCode err=U_ZERO_ERROR;
switch(u) {
case move:
calendar_->add(to_icu(p),difference,err);
break;
case roll:
calendar_->roll(to_icu(p),difference,err);
break;
}
check_and_throw_dt(err);
}
virtual int difference(abstract_calendar const *other_ptr,period::marks::period_mark p) const
{
UErrorCode err=U_ZERO_ERROR;
double other_time = 0;
//
// fieldDifference has side effect of moving calendar (WTF?)
// So we clone it for performing this operation
//
hold_ptr<icu::Calendar> self(calendar_->clone());
calendar_impl const *other_cal=dynamic_cast<calendar_impl const *>(other_ptr);
if(other_cal){
guard l(other_cal->lock_);
other_time = other_cal->calendar_->getTime(err);
check_and_throw_dt(err);
}
else {
posix_time p = other_ptr->get_time();
other_time = p.seconds * 1000.0 + p.nanoseconds / 1000000.0;
}
int diff = self->fieldDifference(other_time,to_icu(p),err);
check_and_throw_dt(err);
return diff;
}
virtual void set_timezone(std::string const &tz)
{
calendar_->adoptTimeZone(get_time_zone(tz));
}
virtual std::string get_timezone() const
{
icu::UnicodeString tz;
calendar_->getTimeZone().getID(tz);
icu_std_converter<char> cvt(encoding_);
return cvt.std(tz);
}
virtual bool same(abstract_calendar const *other) const
{
calendar_impl const *oc=dynamic_cast<calendar_impl const *>(other);
if(!oc)
return false;
return calendar_->isEquivalentTo(*oc->calendar_)!=0;
}
private:
typedef boost::unique_lock<boost::mutex> guard;
mutable boost::mutex lock_;
std::string encoding_;
hold_ptr<icu::Calendar> calendar_;
};
class icu_calendar_facet : public calendar_facet {
public:
icu_calendar_facet(cdata const &d,size_t refs = 0) :
calendar_facet(refs),
data_(d)
{
}
virtual abstract_calendar *create_calendar() const
{
return new calendar_impl(data_);
}
private:
cdata data_;
};
std::locale create_calendar(std::locale const &in,cdata const &d)
{
return std::locale(in,new icu_calendar_facet(d));
}
} // impl_icu
} // locale
} // boost
// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
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