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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <connectivity/dbconversion.hxx>
21 : #include <connectivity/dbcharset.hxx>
22 : #include <osl/diagnose.h>
23 : #include <stdio.h>
24 : #include <com/sun/star/sdbc/SQLException.hpp>
25 : #include <com/sun/star/util/Date.hpp>
26 : #include <com/sun/star/util/Time.hpp>
27 : #include <com/sun/star/util/DateTime.hpp>
28 : #include <rtl/ustrbuf.hxx>
29 : #include <rtl/math.hxx>
30 : #include <unotools/datetime.hxx>
31 : #include <sstream>
32 : #include <iomanip>
33 :
34 : #define MAX_DAYS 3636532
35 :
36 : namespace
37 : {
38 : const sal_Int64 nanoSecInSec = 1000000000;
39 : const sal_Int16 secInMin = 60;
40 : const sal_Int16 minInHour = 60;
41 :
42 : const sal_Int64 secMask = 1000000000;
43 : const sal_Int64 minMask = 100000000000LL;
44 : const sal_Int64 hourMask = 10000000000000LL;
45 :
46 : const double fNanoSecondsPerDay = nanoSecInSec * secInMin * minInHour * 24.0;
47 : }
48 :
49 :
50 : namespace dbtools
51 : {
52 :
53 :
54 : using namespace ::com::sun::star::uno;
55 : using namespace ::com::sun::star::util;
56 : using namespace ::com::sun::star::sdb;
57 : using namespace ::com::sun::star::sdbc;
58 : using namespace ::com::sun::star::lang;
59 : using namespace ::com::sun::star::beans;
60 :
61 :
62 :
63 197 : css::util::Date DBTypeConversion::getStandardDate()
64 : {
65 197 : static css::util::Date STANDARD_DB_DATE(1,1,1900);
66 197 : return STANDARD_DB_DATE;
67 : }
68 :
69 0 : OUString DBTypeConversion::toDateString(const css::util::Date& rDate)
70 : {
71 : sal_Char s[11];
72 : snprintf(s,
73 : sizeof(s),
74 : "%04d-%02d-%02d",
75 : (int)rDate.Year,
76 : (int)rDate.Month,
77 0 : (int)rDate.Day);
78 0 : s[10] = 0;
79 0 : return OUString::createFromAscii(s);
80 : }
81 :
82 0 : OUString DBTypeConversion::toTimeStringS(const css::util::Time& rTime)
83 : {
84 0 : std::ostringstream ostr;
85 : using std::setw;
86 0 : ostr.fill('0');
87 0 : ostr << setw(2) << rTime.Hours << ":"
88 0 : << setw(2) << rTime.Minutes << ":"
89 0 : << setw(2) << rTime.Seconds;
90 0 : return OUString::createFromAscii(ostr.str().c_str());
91 : }
92 :
93 0 : OUString DBTypeConversion::toTimeString(const css::util::Time& rTime)
94 : {
95 0 : std::ostringstream ostr;
96 : using std::setw;
97 0 : ostr.fill('0');
98 0 : ostr << setw(2) << rTime.Hours << ":"
99 0 : << setw(2) << rTime.Minutes << ":"
100 0 : << setw(2) << rTime.Seconds << "."
101 0 : << setw(9) << rTime.NanoSeconds;
102 0 : return OUString::createFromAscii(ostr.str().c_str());
103 : }
104 :
105 0 : OUString DBTypeConversion::toDateTimeString(const css::util::DateTime& _rDateTime)
106 : {
107 0 : css::util::Date aDate(_rDateTime.Day,_rDateTime.Month,_rDateTime.Year);
108 0 : OUStringBuffer aTemp(toDateString(aDate));
109 0 : aTemp.appendAscii(" ");
110 : css::util::Time const aTime(_rDateTime.NanoSeconds, _rDateTime.Seconds,
111 0 : _rDateTime.Minutes, _rDateTime.Hours, _rDateTime.IsUTC);
112 0 : aTemp.append( toTimeString(aTime) );
113 0 : return aTemp.makeStringAndClear();
114 : }
115 :
116 0 : css::util::Date DBTypeConversion::toDate(sal_Int32 _nVal)
117 : {
118 0 : css::util::Date aReturn;
119 0 : aReturn.Day = (sal_uInt16)(_nVal % 100);
120 0 : aReturn.Month = (sal_uInt16)((_nVal / 100) % 100);
121 0 : aReturn.Year = (sal_uInt16)(_nVal / 10000);
122 0 : return aReturn;
123 : }
124 :
125 :
126 0 : css::util::Time DBTypeConversion::toTime(sal_Int64 _nVal)
127 : {
128 0 : css::util::Time aReturn;
129 0 : sal_uInt64 unVal = static_cast<sal_uInt64>(_nVal >= 0 ? _nVal : -_nVal);
130 0 : aReturn.Hours = unVal / hourMask;
131 0 : aReturn.Minutes = (unVal / minMask) % 100;
132 0 : aReturn.Seconds = (unVal / secMask) % 100;
133 0 : aReturn.NanoSeconds = unVal % secMask;
134 0 : return aReturn;
135 : }
136 :
137 0 : sal_Int64 DBTypeConversion::getNsFromTime(const css::util::Time& rVal)
138 : {
139 0 : sal_Int32 nHour = rVal.Hours;
140 0 : sal_Int32 nMin = rVal.Minutes;
141 0 : sal_Int32 nSec = rVal.Seconds;
142 0 : sal_Int32 nNanoSec = rVal.NanoSeconds;
143 :
144 0 : return nNanoSec +
145 0 : nSec * nanoSecInSec +
146 0 : nMin * (secInMin * nanoSecInSec) +
147 0 : nHour * (minInHour * secInMin * nanoSecInSec);
148 : }
149 :
150 :
151 : static const sal_Int32 aDaysInMonth[12] = { 31, 28, 31, 30, 31, 30,
152 : 31, 31, 30, 31, 30, 31 };
153 :
154 :
155 0 : static bool implIsLeapYear(sal_Int32 _nYear)
156 : {
157 0 : return ( ( ((_nYear % 4) == 0)
158 0 : && ((_nYear % 100) != 0)
159 : )
160 : )
161 0 : || ((_nYear % 400) == 0)
162 : ;
163 : }
164 :
165 :
166 0 : static sal_Int32 implDaysInMonth(sal_Int32 _nMonth, sal_Int32 _nYear)
167 : {
168 : OSL_ENSURE(_nMonth > 0 && _nMonth < 13,"Month as invalid value!");
169 0 : if (_nMonth != 2)
170 0 : return aDaysInMonth[_nMonth-1];
171 : else
172 : {
173 0 : if (implIsLeapYear(_nYear))
174 0 : return aDaysInMonth[_nMonth-1] + 1;
175 : else
176 0 : return aDaysInMonth[_nMonth-1];
177 : }
178 : }
179 :
180 :
181 0 : static sal_Int32 implRelativeToAbsoluteNull(const css::util::Date& _rDate)
182 : {
183 0 : sal_Int32 nDays = 0;
184 :
185 : // ripped this code from the implementation of tools::Date
186 0 : sal_Int32 nNormalizedYear = _rDate.Year - 1;
187 0 : nDays = nNormalizedYear * 365;
188 : // leap years
189 0 : nDays += (nNormalizedYear / 4) - (nNormalizedYear / 100) + (nNormalizedYear / 400);
190 :
191 0 : for (sal_Int32 i = 1; i < _rDate.Month; ++i)
192 0 : nDays += implDaysInMonth(i, _rDate.Year);
193 :
194 0 : nDays += _rDate.Day;
195 0 : return nDays;
196 : }
197 :
198 0 : static void implBuildFromRelative( sal_Int32 nDays, sal_uInt16& rDay, sal_uInt16& rMonth, sal_Int16& rYear)
199 : {
200 : sal_Int32 nTempDays;
201 0 : sal_Int32 i = 0;
202 : bool bCalc;
203 :
204 0 : do
205 : {
206 0 : nTempDays = nDays;
207 0 : rYear = (sal_uInt16)((nTempDays / 365) - i);
208 0 : nTempDays -= (rYear-1) * 365;
209 0 : nTempDays -= ((rYear-1) / 4) - ((rYear-1) / 100) + ((rYear-1) / 400);
210 0 : bCalc = false;
211 0 : if ( nTempDays < 1 )
212 : {
213 0 : i++;
214 0 : bCalc = true;
215 : }
216 : else
217 : {
218 0 : if ( nTempDays > 365 )
219 : {
220 0 : if ( (nTempDays != 366) || !implIsLeapYear( rYear ) )
221 : {
222 0 : i--;
223 0 : bCalc = true;
224 : }
225 : }
226 : }
227 : }
228 : while ( bCalc );
229 :
230 0 : rMonth = 1;
231 0 : while ( nTempDays > implDaysInMonth( rMonth, rYear ) )
232 : {
233 0 : nTempDays -= implDaysInMonth( rMonth, rYear );
234 0 : rMonth++;
235 : }
236 0 : rDay = (sal_uInt16)nTempDays;
237 0 : }
238 :
239 0 : sal_Int32 DBTypeConversion::toDays(const css::util::Date& _rVal, const css::util::Date& _rNullDate)
240 : {
241 0 : return implRelativeToAbsoluteNull(_rVal) - implRelativeToAbsoluteNull(_rNullDate);
242 : }
243 :
244 :
245 0 : double DBTypeConversion::toDouble(const css::util::Date& rVal, const css::util::Date& _rNullDate)
246 : {
247 0 : return (double)toDays(rVal, _rNullDate);
248 : }
249 :
250 :
251 0 : double DBTypeConversion::toDouble(const css::util::Time& rVal)
252 : {
253 0 : return (double)getNsFromTime(rVal) / fNanoSecondsPerDay;
254 : }
255 :
256 :
257 0 : double DBTypeConversion::toDouble(const css::util::DateTime& _rVal, const css::util::Date& _rNullDate)
258 : {
259 0 : sal_Int64 nTime = toDays(css::util::Date(_rVal.Day, _rVal.Month, _rVal.Year), _rNullDate);
260 0 : css::util::Time aTimePart;
261 :
262 0 : aTimePart.Hours = _rVal.Hours;
263 0 : aTimePart.Minutes = _rVal.Minutes;
264 0 : aTimePart.Seconds = _rVal.Seconds;
265 0 : aTimePart.NanoSeconds = _rVal.NanoSeconds;
266 :
267 0 : return ((double)nTime) + toDouble(aTimePart);
268 : }
269 :
270 0 : static void addDays(sal_Int32 nDays, css::util::Date& _rDate)
271 : {
272 0 : sal_Int32 nTempDays = implRelativeToAbsoluteNull( _rDate );
273 :
274 0 : nTempDays += nDays;
275 0 : if ( nTempDays > MAX_DAYS )
276 : {
277 0 : _rDate.Day = 31;
278 0 : _rDate.Month = 12;
279 0 : _rDate.Year = 9999;
280 : }
281 0 : else if ( nTempDays <= 0 )
282 : {
283 0 : _rDate.Day = 1;
284 0 : _rDate.Month = 1;
285 0 : _rDate.Year = 00;
286 : }
287 : else
288 0 : implBuildFromRelative( nTempDays, _rDate.Day, _rDate.Month, _rDate.Year );
289 0 : }
290 :
291 0 : static void subDays( sal_Int32 nDays, css::util::Date& _rDate )
292 : {
293 0 : sal_Int32 nTempDays = implRelativeToAbsoluteNull( _rDate );
294 :
295 0 : nTempDays -= nDays;
296 0 : if ( nTempDays > MAX_DAYS )
297 : {
298 0 : _rDate.Day = 31;
299 0 : _rDate.Month = 12;
300 0 : _rDate.Year = 9999;
301 : }
302 0 : else if ( nTempDays <= 0 )
303 : {
304 0 : _rDate.Day = 1;
305 0 : _rDate.Month = 1;
306 0 : _rDate.Year = 00;
307 : }
308 : else
309 0 : implBuildFromRelative( nTempDays, _rDate.Day, _rDate.Month, _rDate.Year );
310 0 : }
311 :
312 0 : css::util::Date DBTypeConversion::toDate(double dVal, const css::util::Date& _rNullDate)
313 : {
314 0 : css::util::Date aRet = _rNullDate;
315 :
316 0 : if (dVal >= 0)
317 0 : addDays((sal_Int32)dVal,aRet);
318 : else
319 0 : subDays((sal_uInt32)(-dVal),aRet);
320 : // x -= (sal_uInt32)(-nDays);
321 :
322 0 : return aRet;
323 : }
324 :
325 0 : css::util::Time DBTypeConversion::toTime(double dVal, short nDigits)
326 : {
327 0 : sal_Int32 nDays = (sal_Int32)dVal;
328 : sal_Int64 nNS;
329 : {
330 0 : double fSeconds((dVal - (double)nDays) * (fNanoSecondsPerDay / nanoSecInSec));
331 0 : fSeconds = ::rtl::math::round( fSeconds, nDigits );
332 0 : nNS = fSeconds * nanoSecInSec;
333 : }
334 :
335 : sal_Int16 nSign;
336 0 : if ( nNS < 0 )
337 : {
338 0 : nNS *= -1;
339 0 : nSign = -1;
340 : }
341 : else
342 0 : nSign = 1;
343 :
344 0 : css::util::Time xRet;
345 : // normalize time
346 : // we have to sal_Int32 here because otherwise we get an overflow
347 0 : sal_Int64 nNanoSeconds = nNS;
348 0 : sal_Int32 nSeconds = nNanoSeconds / nanoSecInSec;
349 0 : sal_Int32 nMinutes = nSeconds / secInMin;
350 :
351 0 : xRet.NanoSeconds = nNanoSeconds % nanoSecInSec;
352 0 : xRet.Seconds = nSeconds % secInMin;
353 0 : xRet.Hours = nMinutes / minInHour;
354 0 : xRet.Minutes = nMinutes % minInHour;
355 :
356 : // assemble time
357 0 : sal_Int64 nTime = nSign *
358 0 : (xRet.NanoSeconds +
359 0 : xRet.Seconds * secMask +
360 0 : xRet.Minutes * minMask +
361 0 : xRet.Hours * hourMask);
362 :
363 0 : if(nTime < 0)
364 : {
365 0 : xRet.NanoSeconds = nanoSecInSec-1;
366 0 : xRet.Seconds = secInMin-1;
367 0 : xRet.Minutes = minInHour-1;
368 0 : xRet.Hours = 23;
369 : }
370 0 : return xRet;
371 : }
372 :
373 0 : css::util::DateTime DBTypeConversion::toDateTime(double dVal, const css::util::Date& _rNullDate)
374 : {
375 0 : css::util::Date aDate = toDate(dVal, _rNullDate);
376 : // there is not enough precision in a double to have both a date
377 : // and a time up to nanoseconds -> limit to microseconds to have
378 : // correct rounding, that is e.g. 13:00:00.000000000 instead of
379 : // 12:59:59.999999790
380 0 : css::util::Time aTime = toTime(dVal, 6);
381 :
382 0 : css::util::DateTime xRet;
383 :
384 0 : xRet.Day = aDate.Day;
385 0 : xRet.Month = aDate.Month;
386 0 : xRet.Year = aDate.Year;
387 :
388 0 : xRet.NanoSeconds = aTime.NanoSeconds;
389 0 : xRet.Minutes = aTime.Minutes;
390 0 : xRet.Seconds = aTime.Seconds;
391 0 : xRet.Hours = aTime.Hours;
392 :
393 :
394 0 : return xRet;
395 : }
396 :
397 0 : css::util::Date DBTypeConversion::toDate(const OUString& _sSQLString)
398 : {
399 : // get the token out of a string
400 : static sal_Unicode sDateSep = '-';
401 :
402 0 : sal_Int32 nIndex = 0;
403 0 : sal_uInt16 nYear = 0,
404 0 : nMonth = 0,
405 0 : nDay = 0;
406 0 : nYear = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
407 0 : if(nIndex != -1)
408 : {
409 0 : nMonth = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
410 0 : if(nIndex != -1)
411 0 : nDay = (sal_uInt16)_sSQLString.getToken(0,sDateSep,nIndex).toInt32();
412 : }
413 :
414 0 : return css::util::Date(nDay,nMonth,nYear);
415 : }
416 :
417 :
418 0 : css::util::DateTime DBTypeConversion::toDateTime(const OUString& _sSQLString)
419 : {
420 : //@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Timestamp.html#valueOf(java.lang.String)
421 : //@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Date.html#valueOf(java.lang.String)
422 : //@see http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Time.html#valueOf(java.lang.String)
423 :
424 : // the date part
425 0 : css::util::Date aDate = toDate(_sSQLString);
426 0 : css::util::Time aTime;
427 0 : sal_Int32 nSeparation = _sSQLString.indexOf( ' ' );
428 0 : if ( -1 != nSeparation )
429 : {
430 0 : const sal_Unicode *p = _sSQLString.getStr() + nSeparation;
431 0 : const sal_Unicode *const begin = p;
432 0 : while (isspace(*p)) { ++p; }
433 0 : nSeparation += p - begin;
434 0 : aTime = toTime( _sSQLString.copy( nSeparation ) );
435 : }
436 :
437 : return css::util::DateTime(aTime.NanoSeconds, aTime.Seconds, aTime.Minutes, aTime.Hours,
438 0 : aDate.Day, aDate.Month, aDate.Year, false);
439 : }
440 :
441 :
442 0 : css::util::Time DBTypeConversion::toTime(const OUString& _sSQLString)
443 : {
444 0 : css::util::Time aTime;
445 0 : ::utl::ISO8601parseTime(_sSQLString, aTime);
446 0 : return aTime;
447 : }
448 :
449 :
450 : } // namespace dbtools
451 :
452 :
453 :
454 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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