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1 | /* |
2 | ******************************************************************************* | |
3 | * | |
4 | * Copyright (C) 2007, 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 | void dumpZone(ostream& out, const char* linesep, UnicodeString tzid, int32_t low, int32_t high) { | |
200 | } | |
201 | ||
202 | TimeZone* timezone; | |
203 | int32_t loyear; | |
204 | int32_t hiyear; | |
205 | int32_t tick; | |
206 | ||
207 | DumpFormatter* formatter; | |
208 | const char* linesep; | |
209 | }; | |
210 | ||
211 | class ZoneIterator { | |
212 | public: | |
213 | ZoneIterator(UBool bAll = FALSE) { | |
214 | if (bAll) { | |
215 | zenum = TimeZone::createEnumeration(); | |
216 | } | |
217 | else { | |
218 | zenum = NULL; | |
219 | zids = NULL; | |
220 | idx = 0; | |
221 | numids = 1; | |
222 | } | |
223 | } | |
224 | ||
225 | ZoneIterator(const char** ids, int32_t num) { | |
226 | zenum = NULL; | |
227 | zids = ids; | |
228 | idx = 0; | |
229 | numids = num; | |
230 | } | |
231 | ||
232 | ~ZoneIterator() { | |
233 | if (zenum != NULL) { | |
234 | delete zenum; | |
235 | } | |
236 | } | |
237 | ||
238 | TimeZone* next() { | |
239 | TimeZone* tz = NULL; | |
240 | if (zenum != NULL) { | |
241 | UErrorCode status = U_ZERO_ERROR; | |
242 | const UnicodeString* zid = zenum->snext(status); | |
243 | if (zid != NULL) { | |
244 | tz = TimeZone::createTimeZone(*zid); | |
245 | } | |
246 | } | |
247 | else { | |
248 | if (idx < numids) { | |
249 | if (zids != NULL) { | |
250 | tz = TimeZone::createTimeZone((const UnicodeString&)zids[idx]); | |
251 | } | |
252 | else { | |
253 | tz = TimeZone::createDefault(); | |
254 | } | |
255 | idx++; | |
256 | } | |
257 | } | |
258 | return tz; | |
259 | } | |
260 | ||
261 | private: | |
262 | const char** zids; | |
263 | StringEnumeration* zenum; | |
264 | int32_t idx; | |
265 | int32_t numids; | |
266 | }; | |
267 | ||
268 | enum { | |
269 | kOptHelpH = 0, | |
270 | kOptHelpQuestionMark, | |
271 | kOptAllZones, | |
272 | kOptCutover, | |
273 | kOptDestDir, | |
274 | kOptLineSep | |
275 | }; | |
276 | ||
277 | static UOption options[]={ | |
278 | UOPTION_HELP_H, | |
279 | UOPTION_HELP_QUESTION_MARK, | |
280 | UOPTION_DEF("allzones", 'a', UOPT_NO_ARG), | |
281 | UOPTION_DEF("cutover", 'c', UOPT_REQUIRES_ARG), | |
282 | UOPTION_DEF("destdir", 'd', UOPT_REQUIRES_ARG), | |
283 | UOPTION_DEF("linesep", 'l', UOPT_REQUIRES_ARG) | |
284 | }; | |
285 | ||
286 | extern int | |
287 | main(int argc, char *argv[]) { | |
288 | int32_t low = 1902; | |
289 | int32_t high = 2038; | |
290 | UBool bAll = FALSE; | |
291 | const char *dir = NULL; | |
292 | const char *linesep = NULL; | |
293 | ||
294 | U_MAIN_INIT_ARGS(argc, argv); | |
295 | argc = u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options); | |
296 | ||
297 | if (argc < 0) { | |
298 | cerr << "Illegal command line argument(s)" << endl << endl; | |
299 | } | |
300 | ||
301 | if (argc < 0 || options[kOptHelpH].doesOccur || options[kOptHelpQuestionMark].doesOccur) { | |
302 | cerr | |
303 | << "Usage: icuzdump [-options] [zoneid1 zoneid2 ...]" << endl | |
304 | << endl | |
305 | << "\tDump all offset transitions for the specified zones." << endl | |
306 | << endl | |
307 | << "Options:" << endl | |
308 | << "\t-a : Dump all available zones." << endl | |
309 | << "\t-d <dir> : When specified, write transitions in a file under" << endl | |
310 | << "\t the directory for each zone." << endl | |
311 | << "\t-l <sep> : New line code type used in file outputs. CR or LF (default)" | |
312 | << "\t or CRLF." << endl | |
313 | << "\t-c [<low_year>,]<high_year>" << endl | |
314 | << "\t : When specified, dump transitions starting <low_year>" << endl | |
315 | << "\t (inclusive) up to <high_year> (exclusive). The default" << endl | |
316 | << "\t values are 1902(low) and 2038(high)." << endl; | |
317 | return argc < 0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR; | |
318 | } | |
319 | ||
320 | bAll = options[kOptAllZones].doesOccur; | |
321 | ||
322 | if (options[kOptDestDir].doesOccur) { | |
323 | dir = options[kOptDestDir].value; | |
324 | } | |
325 | ||
326 | if (options[kOptLineSep].doesOccur) { | |
327 | if (strcmp(options[kOptLineSep].value, "CR") == 0) { | |
328 | linesep = "\r"; | |
329 | } else if (strcmp(options[kOptLineSep].value, "CRLF") == 0) { | |
330 | linesep = "\r\n"; | |
331 | } else if (strcmp(options[kOptLineSep].value, "LF") == 0) { | |
332 | linesep = "\n"; | |
333 | } | |
334 | } | |
335 | ||
336 | if (options[kOptCutover].doesOccur) { | |
337 | char* comma = (char*)strchr(options[kOptCutover].value, ','); | |
338 | if (comma == NULL) { | |
339 | high = atoi(options[kOptCutover].value); | |
340 | } else { | |
341 | *comma = 0; | |
342 | low = atoi(options[kOptCutover].value); | |
343 | high = atoi(comma + 1); | |
344 | } | |
345 | } | |
346 | ||
347 | ICUZDump dumper; | |
348 | dumper.setLowYear(low); | |
349 | dumper.setHighYear(high); | |
350 | if (dir != NULL && linesep != NULL) { | |
351 | // use the specified line separator only for file output | |
352 | dumper.setLineSeparator((const char*)linesep); | |
353 | } | |
354 | ||
355 | ZoneIterator* zit; | |
356 | if (bAll) { | |
357 | zit = new ZoneIterator(TRUE); | |
358 | } else { | |
359 | if (argc <= 1) { | |
360 | zit = new ZoneIterator(); | |
361 | } else { | |
362 | zit = new ZoneIterator((const char**)&argv[1], argc - 1); | |
363 | } | |
364 | } | |
365 | ||
366 | UnicodeString id; | |
367 | if (dir != NULL) { | |
368 | // file output | |
369 | ostringstream path; | |
370 | ios::openmode mode = ios::out; | |
371 | if (linesep != NULL) { | |
372 | mode |= ios::binary; | |
373 | } | |
374 | for (;;) { | |
375 | TimeZone* tz = zit->next(); | |
376 | if (tz == NULL) { | |
377 | break; | |
378 | } | |
379 | dumper.setTimeZone(tz); | |
380 | tz->getID(id); | |
381 | ||
382 | // target file path | |
383 | path.str(""); | |
384 | path << dir << U_FILE_SEP_CHAR; | |
385 | id = id.findAndReplace("/", "-"); | |
386 | path << id; | |
387 | ||
388 | ofstream* fout = new ofstream(path.str().c_str(), mode); | |
389 | if (fout->fail()) { | |
390 | cerr << "Cannot open file " << path << endl; | |
391 | delete fout; | |
392 | delete tz; | |
393 | break; | |
394 | } | |
395 | ||
396 | dumper.dump(*fout); | |
397 | fout->close(); | |
398 | delete fout; | |
399 | delete tz; | |
400 | } | |
401 | ||
402 | } else { | |
403 | // stdout | |
404 | UBool bFirst = TRUE; | |
405 | for (;;) { | |
406 | TimeZone* tz = zit->next(); | |
407 | if (tz == NULL) { | |
408 | break; | |
409 | } | |
410 | dumper.setTimeZone(tz); | |
411 | tz->getID(id); | |
412 | if (bFirst) { | |
413 | bFirst = FALSE; | |
414 | } else { | |
415 | cout << endl; | |
416 | } | |
417 | cout << "ZONE: " << id << endl; | |
418 | dumper.dump(cout); | |
419 | delete tz; | |
420 | } | |
421 | } | |
422 | delete zit; | |
423 | } |