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loongoffice/connectivity/source/commontools/dbconversion.cxx
Stefan Weiberg b450d32260 fdo#82088: changed namespace from utl to css::util 
- edit: deleted redefined css (alrdy global)

Change-Id: I2e1b0a3d71ef25fdca2a56094283ed076e5cdd30
Reviewed-on: https://gerrit.libreoffice.org/11171
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>
2014-08-28 08:55:44 -05:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <connectivity/dbconversion.hxx>
#include <connectivity/dbcharset.hxx>
#include <osl/diagnose.h>
#include <stdio.h>
#include <com/sun/star/sdbc/SQLException.hpp>
#include <com/sun/star/util/Date.hpp>
#include <com/sun/star/util/Time.hpp>
#include <com/sun/star/util/DateTime.hpp>
#include <rtl/ustrbuf.hxx>
#include <rtl/math.hxx>
#include <unotools/datetime.hxx>
#include <sstream>
#include <iomanip>
#define MAX_DAYS 3636532
namespace
{
const sal_Int64 nanoSecInSec = 1000000000;
const sal_Int16 secInMin = 60;
const sal_Int16 minInHour = 60;
const sal_Int64 secMask = 1000000000;
const sal_Int64 minMask = 100000000000LL;
const sal_Int64 hourMask = 10000000000000LL;
const double fNanoSecondsPerDay = nanoSecInSec * secInMin * minInHour * 24.0;
}
namespace dbtools
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
css::util::Date DBTypeConversion::getStandardDate()
{
static css::util::Date STANDARD_DB_DATE(1,1,1900);
return STANDARD_DB_DATE;
}
OUString DBTypeConversion::toDateString(const css::util::Date& rDate)
{
sal_Char s[11];
snprintf(s,
sizeof(s),
"%04d-%02d-%02d",
(int)rDate.Year,
(int)rDate.Month,
(int)rDate.Day);
s[10] = 0;
return OUString::createFromAscii(s);
}
OUString DBTypeConversion::toTimeStringS(const css::util::Time& rTime)
{
std::ostringstream ostr;
using std::setw;
ostr.fill('0');
ostr << setw(2) << rTime.Hours << ":"
<< setw(2) << rTime.Minutes << ":"
<< setw(2) << rTime.Seconds;
return OUString::createFromAscii(ostr.str().c_str());
}
OUString DBTypeConversion::toTimeString(const css::util::Time& rTime)
{
std::ostringstream ostr;
using std::setw;
ostr.fill('0');
ostr << setw(2) << rTime.Hours << ":"
<< setw(2) << rTime.Minutes << ":"
<< setw(2) << rTime.Seconds << "."
<< setw(9) << rTime.NanoSeconds;
return OUString::createFromAscii(ostr.str().c_str());
}
OUString DBTypeConversion::toDateTimeString(const css::util::DateTime& _rDateTime)
{
css::util::Date aDate(_rDateTime.Day,_rDateTime.Month,_rDateTime.Year);
OUStringBuffer aTemp(toDateString(aDate));
aTemp.appendAscii(" ");
css::util::Time const aTime(_rDateTime.NanoSeconds, _rDateTime.Seconds,
_rDateTime.Minutes, _rDateTime.Hours, _rDateTime.IsUTC);
aTemp.append( toTimeString(aTime) );
return aTemp.makeStringAndClear();
}
css::util::Date DBTypeConversion::toDate(sal_Int32 _nVal)
{
css::util::Date aReturn;
aReturn.Day = (sal_uInt16)(_nVal % 100);
aReturn.Month = (sal_uInt16)((_nVal / 100) % 100);
aReturn.Year = (sal_uInt16)(_nVal / 10000);
return aReturn;
}
css::util::Time DBTypeConversion::toTime(sal_Int64 _nVal)
{
css::util::Time aReturn;
sal_uInt64 unVal = static_cast<sal_uInt64>(_nVal >= 0 ? _nVal : -_nVal);
aReturn.Hours = unVal / hourMask;
aReturn.Minutes = (unVal / minMask) % 100;
aReturn.Seconds = (unVal / secMask) % 100;
aReturn.NanoSeconds = unVal % secMask;
return aReturn;
}
sal_Int64 DBTypeConversion::getNsFromTime(const css::util::Time& rVal)
{
sal_Int32 nHour = rVal.Hours;
sal_Int32 nMin = rVal.Minutes;
sal_Int32 nSec = rVal.Seconds;
sal_Int32 nNanoSec = rVal.NanoSeconds;
return nNanoSec +
nSec * nanoSecInSec +
nMin * (secInMin * nanoSecInSec) +
nHour * (minInHour * secInMin * nanoSecInSec);
}
static const sal_Int32 aDaysInMonth[12] = { 31, 28, 31, 30, 31, 30,
31, 31, 30, 31, 30, 31 };
static bool implIsLeapYear(sal_Int32 _nYear)
{
return ( ( ((_nYear % 4) == 0)
&& ((_nYear % 100) != 0)
)
)
|| ((_nYear % 400) == 0)
;
}
static sal_Int32 implDaysInMonth(sal_Int32 _nMonth, sal_Int32 _nYear)
{
OSL_ENSURE(_nMonth > 0 && _nMonth < 13,"Month as invalid value!");
if (_nMonth != 2)
return aDaysInMonth[_nMonth-1];
else
{
if (implIsLeapYear(_nYear))
return aDaysInMonth[_nMonth-1] + 1;
else
return aDaysInMonth[_nMonth-1];
}
}
static sal_Int32 implRelativeToAbsoluteNull(const css::util::Date& _rDate)
{
sal_Int32 nDays = 0;
// ripped this code from the implementation of tools::Date
sal_Int32 nNormalizedYear = _rDate.Year - 1;
nDays = nNormalizedYear * 365;
// leap years
nDays += (nNormalizedYear / 4) - (nNormalizedYear / 100) + (nNormalizedYear / 400);
for (sal_Int32 i = 1; i < _rDate.Month; ++i)
nDays += implDaysInMonth(i, _rDate.Year);
nDays += _rDate.Day;
return nDays;
}
static void implBuildFromRelative( sal_Int32 nDays, sal_uInt16& rDay, sal_uInt16& rMonth, sal_Int16& rYear)
{
sal_Int32 nTempDays;
sal_Int32 i = 0;
bool bCalc;
do
{
nTempDays = nDays;
rYear = (sal_uInt16)((nTempDays / 365) - i);
nTempDays -= (rYear-1) * 365;
nTempDays -= ((rYear-1) / 4) - ((rYear-1) / 100) + ((rYear-1) / 400);
bCalc = false;
if ( nTempDays < 1 )
{
i++;
bCalc = true;
}
else
{
if ( nTempDays > 365 )
{
if ( (nTempDays != 366) || !implIsLeapYear( rYear ) )
{
i--;
bCalc = true;
}
}
}
}
while ( bCalc );
rMonth = 1;
while ( nTempDays > implDaysInMonth( rMonth, rYear ) )
{
nTempDays -= implDaysInMonth( rMonth, rYear );
rMonth++;
}
rDay = (sal_uInt16)nTempDays;
}
sal_Int32 DBTypeConversion::toDays(const css::util::Date& _rVal, const css::util::Date& _rNullDate)
{
return implRelativeToAbsoluteNull(_rVal) - implRelativeToAbsoluteNull(_rNullDate);
}
double DBTypeConversion::toDouble(const css::util::Date& rVal, const css::util::Date& _rNullDate)
{
return (double)toDays(rVal, _rNullDate);
}
double DBTypeConversion::toDouble(const css::util::Time& rVal)
{
return (double)getNsFromTime(rVal) / fNanoSecondsPerDay;
}
double DBTypeConversion::toDouble(const css::util::DateTime& _rVal, const css::util::Date& _rNullDate)
{
sal_Int64 nTime = toDays(css::util::Date(_rVal.Day, _rVal.Month, _rVal.Year), _rNullDate);
css::util::Time aTimePart;
aTimePart.Hours = _rVal.Hours;
aTimePart.Minutes = _rVal.Minutes;
aTimePart.Seconds = _rVal.Seconds;
aTimePart.NanoSeconds = _rVal.NanoSeconds;
return ((double)nTime) + toDouble(aTimePart);
}
static void addDays(sal_Int32 nDays, css::util::Date& _rDate)
{
sal_Int32 nTempDays = implRelativeToAbsoluteNull( _rDate );
nTempDays += nDays;
if ( nTempDays > MAX_DAYS )
{
_rDate.Day = 31;
_rDate.Month = 12;
_rDate.Year = 9999;
}
else if ( nTempDays <= 0 )
{
_rDate.Day = 1;
_rDate.Month = 1;
_rDate.Year = 00;
}
else
implBuildFromRelative( nTempDays, _rDate.Day, _rDate.Month, _rDate.Year );
}
static void subDays( sal_Int32 nDays, css::util::Date& _rDate )
{
sal_Int32 nTempDays = implRelativeToAbsoluteNull( _rDate );
nTempDays -= nDays;
if ( nTempDays > MAX_DAYS )
{
_rDate.Day = 31;
_rDate.Month = 12;
_rDate.Year = 9999;
}
else if ( nTempDays <= 0 )
{
_rDate.Day = 1;
_rDate.Month = 1;
_rDate.Year = 00;
}
else
implBuildFromRelative( nTempDays, _rDate.Day, _rDate.Month, _rDate.Year );
}
css::util::Date DBTypeConversion::toDate(double dVal, const css::util::Date& _rNullDate)
{
css::util::Date aRet = _rNullDate;
if (dVal >= 0)
addDays((sal_Int32)dVal,aRet);
else
subDays((sal_uInt32)(-dVal),aRet);
// x -= (sal_uInt32)(-nDays);
return aRet;
}
css::util::Time DBTypeConversion::toTime(double dVal, short nDigits)
{
sal_Int32 nDays = (sal_Int32)dVal;
sal_Int64 nNS;
{
double fSeconds((dVal - (double)nDays) * (fNanoSecondsPerDay / nanoSecInSec));
fSeconds = ::rtl::math::round( fSeconds, nDigits );
nNS = fSeconds * nanoSecInSec;
}
sal_Int16 nSign;
if ( nNS < 0 )
{
nNS *= -1;
nSign = -1;
}
else
nSign = 1;
css::util::Time xRet;
// normalize time
// we have to sal_Int32 here because otherwise we get an overflow
sal_Int64 nNanoSeconds = nNS;
sal_Int32 nSeconds = nNanoSeconds / nanoSecInSec;
sal_Int32 nMinutes = nSeconds / secInMin;
xRet.NanoSeconds = nNanoSeconds % nanoSecInSec;
xRet.Seconds = nSeconds % secInMin;
xRet.Hours = nMinutes / minInHour;
xRet.Minutes = nMinutes % minInHour;
// assemble time
sal_Int64 nTime = nSign *
(xRet.NanoSeconds +
xRet.Seconds * secMask +
xRet.Minutes * minMask +
xRet.Hours * hourMask);
if(nTime < 0)
{
xRet.NanoSeconds = nanoSecInSec-1;
xRet.Seconds = secInMin-1;
xRet.Minutes = minInHour-1;
xRet.Hours = 23;
}
return xRet;
}
css::util::DateTime DBTypeConversion::toDateTime(double dVal, const css::util::Date& _rNullDate)
{
css::util::Date aDate = toDate(dVal, _rNullDate);
// there is not enough precision in a double to have both a date
// and a time up to nanoseconds -> limit to microseconds to have
// correct rounding, that is e.g. 13:00:00.000000000 instead of
// 12:59:59.999999790
css::util::Time aTime = toTime(dVal, 6);
css::util::DateTime xRet;
xRet.Day = aDate.Day;
xRet.Month = aDate.Month;
xRet.Year = aDate.Year;
xRet.NanoSeconds = aTime.NanoSeconds;
xRet.Minutes = aTime.Minutes;
xRet.Seconds = aTime.Seconds;
xRet.Hours = aTime.Hours;
return xRet;
}
css::util::Date DBTypeConversion::toDate(const OUString& _sSQLString)
{
// get the token out of a string
static sal_Unicode sDateSep = '-';
sal_Int32 nIndex = 0;
sal_uInt16 nYear = 0,
nMonth = 0,
nDay = 0;
nYear = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
if(nIndex != -1)
{
nMonth = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
if(nIndex != -1)
nDay = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
}
return css::util::Date(nDay,nMonth,nYear);
}
css::util::DateTime DBTypeConversion::toDateTime(const OUString& _sSQLString)
{
//@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Timestamp.html#valueOf(java.lang.String)
//@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Date.html#valueOf(java.lang.String)
//@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Time.html#valueOf(java.lang.String)
// the date part
css::util::Date aDate = toDate(_sSQLString);
css::util::Time aTime;
sal_Int32 nSeparation = _sSQLString.indexOf( ' ' );
if ( -1 != nSeparation )
{
const sal_Unicode *p = _sSQLString.getStr() + nSeparation;
const sal_Unicode *const begin = p;
while (isspace(*p)) { ++p; }
nSeparation += p - begin;
aTime = toTime( _sSQLString.copy( nSeparation ) );
}
return css::util::DateTime(aTime.NanoSeconds, aTime.Seconds, aTime.Minutes, aTime.Hours,
aDate.Day, aDate.Month, aDate.Year, false);
}
css::util::Time DBTypeConversion::toTime(const OUString& _sSQLString)
{
css::util::Time aTime;
::utl::ISO8601parseTime(_sSQLString, aTime);
return aTime;
}
} // namespace dbtools
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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