/builddir/build/BUILD/libutil++-1.4.0/src/sella/variant/Date.cpp

/*
** libutil++
** $Id: Date.cpp 1197 2014-10-14 22:26:11Z sella $
** Copyright (c) 2011-2014 Digital Genesis, LLC. All Rights Reserved.
** Released under the LGPL Version 2.1 License.
** http://www.digitalgenesis.com
*/

static const char rcsid[] __attribute__((used)) = "$Id: Date.cpp 1197 2014-10-14 22:26:11Z sella $";

#include "Date.h"

using namespace sella::variant;

const boost::regex Date::Pattern("^([0-9]{4})-([0-9]{2})-([0-9]{2})$");

Date::Date() throw () : Nullable() { }

Date::Date(const std::string &value) throw (TypeCastException) : Nullable() {
        boost::smatch   matcher;
        struct tm               stamp;

        if (boost::regex_match(value, matcher, Date::Pattern)) {
                memset(&stamp, 0, sizeof(stamp));

                stamp.tm_year = strtol(matcher[1].str().c_str(), NULL, 10) - 1900;
                stamp.tm_mon  = strtol(matcher[2].str().c_str(), NULL, 10) - 1;
                stamp.tm_mday = strtol(matcher[3].str().c_str(), NULL, 10);

                this->value = std::make_shared<int64_t>(mktime(&stamp) * 1000000LL);
        } else {
                THROW(TypeCastException, "unable to cast '%s' to a date value", value.c_str());
        }
}

Date::Date(int64_t value) throw () : Nullable(std::make_shared<int64_t>(value)) { }

Date::Date(const Date &other) throw () : Nullable(other) {
        if (!other.isNull()) {
                this->value = std::make_shared<int64_t>(*other.getUsec());
        }
}

Date::~Date() throw () { }

bool Date::operator==(const Date &other) const throw () {
        return (*std::static_pointer_cast<int64_t>(this->value) == *std::static_pointer_cast<int64_t>(other.value));
}

bool Date::operator!=(const Date &other) const throw () {
        return !(*this == other);
}

bool Date::operator>(const Date &other) const throw () {
        return (*std::static_pointer_cast<int64_t>(this->value) > *std::static_pointer_cast<int64_t>(other.value));
}

bool Date::operator<(const Date &other) const throw () {
        return (*std::static_pointer_cast<int64_t>(this->value) < *std::static_pointer_cast<int64_t>(other.value));
}

Date& Date::operator=(const Date &other) throw () {
        if (this != &other) {
                Nullable::operator=(other);
                if (!other.isNull()) {
                        this->value = std::make_shared<int64_t>(*other.getUsec());
                }
        }

        return *this;
}

Date& Date::operator+=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) += value;

        return *this;
}

Date& Date::operator-=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) -= value;

        return *this;
}

Date& Date::operator*=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) *= value;

        return *this;
}

Date& Date::operator/=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) /= value;

        return *this;
}

Date& Date::operator^=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) = pow((*std::static_pointer_cast<int64_t>(this->value)), value);

        return *this;
}

Date& Date::operator%=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) %= value;

        return *this;
}

Date& Date::operator&=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) &= value;

        return *this;
}

Date& Date::operator|=(int64_t value) throw () {
        cache.clear();
        (*std::static_pointer_cast<int64_t>(this->value)) |= value;

        return *this;
}

const int64_t* Date::getUsec() const throw (UnsupportedOperatorException) {
        if (isNull()) {
                THROW(UnsupportedOperatorException, "unable to take reference of null value");
        }

        return &(*std::static_pointer_cast<int64_t>(this->value));
}

const std::string& Date::str() const throw () {
        if (cache.empty()) {
                if (this->isNull()) {
                        cache = "null";
                } else { 
                        char                    buffer[4096];   
                        time_t          epoch = *(this->getUsec()) / 1000000LL;
                        struct tm       human;

                        gmtime_r(&epoch, &human);
                        snprintf(buffer, sizeof(buffer), "%04d-%02d-%02d", human.tm_year + 1900, human.tm_mon + 1, human.tm_mday);
                        cache = buffer;
                }
        }

        return cache;
}

/*
** vim: noet ts=3 sw=3
*/

---