1 /* 2 ******************************************************************************* 3 * 4 * Copyright (C) 2007-2014, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ******************************************************************************* 8 * file name: icuzdump.cpp 9 * encoding: US-ASCII 10 * tab size: 8 (not used) 11 * indentation:4 12 * 13 * created on: 2007-04-02 14 * created by: Yoshito Umaoka 15 * 16 * This tool write out timezone transitions for ICU timezone. This tool 17 * is used as a part of tzdata update process to check if ICU timezone 18 * code works as well as the corresponding Olson stock localtime/zdump. 19 */ 20 21 #include <cstdlib> 22 #include <cstring> 23 #include <fstream> 24 #include <sstream> 25 #include <iostream> 26 27 #include "unicode/utypes.h" 28 #include "unicode/ustring.h" 29 #include "unicode/timezone.h" 30 #include "unicode/simpletz.h" 31 #include "unicode/smpdtfmt.h" 32 #include "unicode/decimfmt.h" 33 #include "unicode/gregocal.h" 34 #include "unicode/ustream.h" 35 #include "unicode/putil.h" 36 37 #include "uoptions.h" 38 39 using namespace std; 40 41 class DumpFormatter { 42 public: 43 DumpFormatter() { 44 UErrorCode status = U_ZERO_ERROR; 45 stz = new SimpleTimeZone(0, ""); 46 sdf = new SimpleDateFormat((UnicodeString)"yyyy-MM-dd EEE HH:mm:ss", Locale::getEnglish(), status); 47 DecimalFormatSymbols *symbols = new DecimalFormatSymbols(Locale::getEnglish(), status); 48 decf = new DecimalFormat("00", symbols, status); 49 } 50 ~DumpFormatter() { 51 } 52 53 UnicodeString& format(UDate time, int32_t offset, UBool isDst, UnicodeString& appendTo) { 54 stz->setRawOffset(offset); 55 sdf->setTimeZone(*stz); 56 UnicodeString str = sdf->format(time, appendTo); 57 if (offset < 0) { 58 appendTo += "-"; 59 offset = -offset; 60 } else { 61 appendTo += "+"; 62 } 63 64 int32_t hour, min, sec; 65 66 offset /= 1000; 67 sec = offset % 60; 68 offset = (offset - sec) / 60; 69 min = offset % 60; 70 hour = offset / 60; 71 72 decf->format(hour, appendTo); 73 decf->format(min, appendTo); 74 decf->format(sec, appendTo); 75 appendTo += "[DST="; 76 if (isDst) { 77 appendTo += "1"; 78 } else { 79 appendTo += "0"; 80 } 81 appendTo += "]"; 82 return appendTo; 83 } 84 private: 85 SimpleTimeZone* stz; 86 SimpleDateFormat* sdf; 87 DecimalFormat* decf; 88 }; 89 90 class ICUZDump { 91 public: 92 ICUZDump() { 93 formatter = new DumpFormatter(); 94 loyear = 1902; 95 hiyear = 2050; 96 tick = 1000; 97 linesep = NULL; 98 } 99 100 ~ICUZDump() { 101 } 102 103 void setLowYear(int32_t lo) { 104 loyear = lo; 105 } 106 107 void setHighYear(int32_t hi) { 108 hiyear = hi; 109 } 110 111 void setTick(int32_t t) { 112 tick = t; 113 } 114 115 void setTimeZone(TimeZone* tz) { 116 timezone = tz; 117 } 118 119 void setDumpFormatter(DumpFormatter* fmt) { 120 formatter = fmt; 121 } 122 123 void setLineSeparator(const char* sep) { 124 linesep = sep; 125 } 126 127 void dump(ostream& out) { 128 UErrorCode status = U_ZERO_ERROR; 129 UDate SEARCH_INCREMENT = 12 * 60 * 60 * 1000; // half day 130 UDate t, cutlo, cuthi; 131 int32_t rawOffset, dstOffset; 132 UnicodeString str; 133 134 getCutOverTimes(cutlo, cuthi); 135 t = cutlo; 136 timezone->getOffset(t, FALSE, rawOffset, dstOffset, status); 137 while (t < cuthi) { 138 int32_t newRawOffset, newDstOffset; 139 UDate newt = t + SEARCH_INCREMENT; 140 141 timezone->getOffset(newt, FALSE, newRawOffset, newDstOffset, status); 142 143 UBool bSameOffset = (rawOffset + dstOffset) == (newRawOffset + newDstOffset); 144 UBool bSameDst = ((dstOffset != 0) && (newDstOffset != 0)) || ((dstOffset == 0) && (newDstOffset == 0)); 145 146 if (!bSameOffset || !bSameDst) { 147 // find the boundary 148 UDate lot = t; 149 UDate hit = newt; 150 while (true) { 151 int32_t diff = (int32_t)(hit - lot); 152 if (diff <= tick) { 153 break; 154 } 155 UDate medt = lot + ((diff / 2) / tick) * tick; 156 int32_t medRawOffset, medDstOffset; 157 timezone->getOffset(medt, FALSE, medRawOffset, medDstOffset, status); 158 159 bSameOffset = (rawOffset + dstOffset) == (medRawOffset + medDstOffset); 160 bSameDst = ((dstOffset != 0) && (medDstOffset != 0)) || ((dstOffset == 0) && (medDstOffset == 0)); 161 162 if (!bSameOffset || !bSameDst) { 163 hit = medt; 164 } else { 165 lot = medt; 166 } 167 } 168 // write out the boundary 169 str.remove(); 170 formatter->format(lot, rawOffset + dstOffset, (dstOffset == 0 ? FALSE : TRUE), str); 171 out << str << " > "; 172 str.remove(); 173 formatter->format(hit, newRawOffset + newDstOffset, (newDstOffset == 0 ? FALSE : TRUE), str); 174 out << str; 175 if (linesep != NULL) { 176 out << linesep; 177 } else { 178 out << endl; 179 } 180 181 rawOffset = newRawOffset; 182 dstOffset = newDstOffset; 183 } 184 t = newt; 185 } 186 } 187 188 private: 189 void getCutOverTimes(UDate& lo, UDate& hi) { 190 UErrorCode status = U_ZERO_ERROR; 191 GregorianCalendar* gcal = new GregorianCalendar(timezone, Locale::getEnglish(), status); 192 gcal->clear(); 193 gcal->set(loyear, 0, 1, 0, 0, 0); 194 lo = gcal->getTime(status); 195 gcal->set(hiyear, 0, 1, 0, 0, 0); 196 hi = gcal->getTime(status); 197 } 198 199 TimeZone* timezone; 200 int32_t loyear; 201 int32_t hiyear; 202 int32_t tick; 203 204 DumpFormatter* formatter; 205 const char* linesep; 206 }; 207 208 class ZoneIterator { 209 public: 210 ZoneIterator(UBool bAll = FALSE) { 211 if (bAll) { 212 zenum = TimeZone::createEnumeration(); 213 } 214 else { 215 zenum = NULL; 216 zids = NULL; 217 idx = 0; 218 numids = 1; 219 } 220 } 221 222 ZoneIterator(const char** ids, int32_t num) { 223 zenum = NULL; 224 zids = ids; 225 idx = 0; 226 numids = num; 227 } 228 229 ~ZoneIterator() { 230 if (zenum != NULL) { 231 delete zenum; 232 } 233 } 234 235 TimeZone* next() { 236 TimeZone* tz = NULL; 237 if (zenum != NULL) { 238 UErrorCode status = U_ZERO_ERROR; 239 const UnicodeString* zid = zenum->snext(status); 240 if (zid != NULL) { 241 tz = TimeZone::createTimeZone(*zid); 242 } 243 } 244 else { 245 if (idx < numids) { 246 if (zids != NULL) { 247 tz = TimeZone::createTimeZone((const UnicodeString&)zids[idx]); 248 } 249 else { 250 tz = TimeZone::createDefault(); 251 } 252 idx++; 253 } 254 } 255 return tz; 256 } 257 258 private: 259 const char** zids; 260 StringEnumeration* zenum; 261 int32_t idx; 262 int32_t numids; 263 }; 264 265 enum { 266 kOptHelpH = 0, 267 kOptHelpQuestionMark, 268 kOptAllZones, 269 kOptCutover, 270 kOptDestDir, 271 kOptLineSep 272 }; 273 274 static UOption options[]={ 275 UOPTION_HELP_H, 276 UOPTION_HELP_QUESTION_MARK, 277 UOPTION_DEF("allzones", 'a', UOPT_NO_ARG), 278 UOPTION_DEF("cutover", 'c', UOPT_REQUIRES_ARG), 279 UOPTION_DEF("destdir", 'd', UOPT_REQUIRES_ARG), 280 UOPTION_DEF("linesep", 'l', UOPT_REQUIRES_ARG) 281 }; 282 283 extern int 284 main(int argc, char *argv[]) { 285 int32_t low = 1902; 286 int32_t high = 2038; 287 UBool bAll = FALSE; 288 const char *dir = NULL; 289 const char *linesep = NULL; 290 291 U_MAIN_INIT_ARGS(argc, argv); 292 argc = u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options); 293 294 if (argc < 0) { 295 cerr << "Illegal command line argument(s)" << endl << endl; 296 } 297 298 if (argc < 0 || options[kOptHelpH].doesOccur || options[kOptHelpQuestionMark].doesOccur) { 299 cerr 300 << "Usage: icuzdump [-options] [zoneid1 zoneid2 ...]" << endl 301 << endl 302 << "\tDump all offset transitions for the specified zones." << endl 303 << endl 304 << "Options:" << endl 305 << "\t-a : Dump all available zones." << endl 306 << "\t-d <dir> : When specified, write transitions in a file under" << endl 307 << "\t the directory for each zone." << endl 308 << "\t-l <sep> : New line code type used in file outputs. CR or LF (default)" 309 << "\t or CRLF." << endl 310 << "\t-c [<low_year>,]<high_year>" << endl 311 << "\t : When specified, dump transitions starting <low_year>" << endl 312 << "\t (inclusive) up to <high_year> (exclusive). The default" << endl 313 << "\t values are 1902(low) and 2038(high)." << endl; 314 return argc < 0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR; 315 } 316 317 bAll = options[kOptAllZones].doesOccur; 318 319 if (options[kOptDestDir].doesOccur) { 320 dir = options[kOptDestDir].value; 321 } 322 323 if (options[kOptLineSep].doesOccur) { 324 if (strcmp(options[kOptLineSep].value, "CR") == 0) { 325 linesep = "\r"; 326 } else if (strcmp(options[kOptLineSep].value, "CRLF") == 0) { 327 linesep = "\r\n"; 328 } else if (strcmp(options[kOptLineSep].value, "LF") == 0) { 329 linesep = "\n"; 330 } 331 } 332 333 if (options[kOptCutover].doesOccur) { 334 char* comma = (char*)strchr(options[kOptCutover].value, ','); 335 if (comma == NULL) { 336 high = atoi(options[kOptCutover].value); 337 } else { 338 *comma = 0; 339 low = atoi(options[kOptCutover].value); 340 high = atoi(comma + 1); 341 } 342 } 343 344 ICUZDump dumper; 345 dumper.setLowYear(low); 346 dumper.setHighYear(high); 347 if (dir != NULL && linesep != NULL) { 348 // use the specified line separator only for file output 349 dumper.setLineSeparator((const char*)linesep); 350 } 351 352 ZoneIterator* zit; 353 if (bAll) { 354 zit = new ZoneIterator(TRUE); 355 } else { 356 if (argc <= 1) { 357 zit = new ZoneIterator(); 358 } else { 359 zit = new ZoneIterator((const char**)&argv[1], argc - 1); 360 } 361 } 362 363 UnicodeString id; 364 if (dir != NULL) { 365 // file output 366 ostringstream path; 367 ios::openmode mode = ios::out; 368 if (linesep != NULL) { 369 mode |= ios::binary; 370 } 371 for (;;) { 372 TimeZone* tz = zit->next(); 373 if (tz == NULL) { 374 break; 375 } 376 dumper.setTimeZone(tz); 377 tz->getID(id); 378 379 // target file path 380 path.str(""); 381 path << dir << U_FILE_SEP_CHAR; 382 id = id.findAndReplace("/", "-"); 383 path << id; 384 385 ofstream* fout = new ofstream(path.str().c_str(), mode); 386 if (fout->fail()) { 387 cerr << "Cannot open file " << path.str() << endl; 388 delete fout; 389 delete tz; 390 break; 391 } 392 393 dumper.dump(*fout); 394 fout->close(); 395 delete fout; 396 delete tz; 397 } 398 399 } else { 400 // stdout 401 UBool bFirst = TRUE; 402 for (;;) { 403 TimeZone* tz = zit->next(); 404 if (tz == NULL) { 405 break; 406 } 407 dumper.setTimeZone(tz); 408 tz->getID(id); 409 if (bFirst) { 410 bFirst = FALSE; 411 } else { 412 cout << endl; 413 } 414 cout << "ZONE: " << id << endl; 415 dumper.dump(cout); 416 delete tz; 417 } 418 } 419 delete zit; 420 } 421
