Examples of com.ibm.icu.util.SimpleTimeZone

com.ibm.icu.util.SimpleTimeZone
SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar. This class does not handle historical changes.
Use a negative value for dayOfWeekInMonth to indicate that SimpleTimeZone should count from the end of the month backwards. For example, if Daylight Savings Time starts or ends at the last Sunday in a month, use dayOfWeekInMonth = -1 along with dayOfWeek = Calendar.SUNDAY to specify the rule. @see Calendar @see GregorianCalendar @see TimeZone @author David Goldsmith, Mark Davis, Chen-Lieh Huang, Alan Liu @stable ICU 2.0


    public void TestT6669() {
        // getNext/PreviousTransition implementation in SimpleTimeZone
        // used to use a bad condition for detecting if DST is enabled or not.


        SimpleTimeZone stz = new SimpleTimeZone(0, "CustomID",
                Calendar.JANUARY, 1, Calendar.SUNDAY, 0,
                Calendar.JULY, 1, Calendar.SUNDAY, 0);


        long t = 1230681600000L; //2008-12-31T00:00:00
        long expectedNext = 1231027200000L; //2009-01-04T00:00:00
        long expectedPrev = 1215298800000L; //2008-07-06T00:00:00


        TimeZoneTransition tzt = stz.getNextTransition(t, false);
        if (tzt == null) {
            errln("FAIL: No transition returned by getNextTransition.");
        } else if (tzt.getTime() != expectedNext){
            errln("FAIL: Wrong transition time returned by getNextTransition - "
                    + tzt.getTime() + " Expected: " + expectedNext);
        }


        tzt = stz.getPreviousTransition(t, true);
        if (tzt == null) {
            errln("FAIL: No transition returned by getPreviousTransition.");
        } else if (tzt.getTime() != expectedPrev){
            errln("FAIL: Wrong transition time returned by getPreviousTransition - "
                    + tzt.getTime() + " Expected: " + expectedPrev);

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        // Make sure that we don't display the DST name by constructing a fake
        // PST zone that has DST all year long.
        // dlf - this test is no longer relevant, we display generic time now
        //    so the behavior of the timezone doesn't matter
        SimpleTimeZone zone2 = new SimpleTimeZone(0, "PST");
        zone2.setStartRule(Calendar.JANUARY, 1, 0);
        zone2.setEndRule(Calendar.DECEMBER, 31, 86399999);
        logln("Modified PST inDaylightTime->" + zone2.inDaylightTime(new Date()));
        name = zone2.getDisplayName(Locale.ENGLISH);
        logln("Modified PST->" + name);
        if (!name.equals("Pacific Time"))
            errln("Fail: Expected \"Pacific Time\"");


        // Make sure we get the default display format for Locales
        // with no display name data.
        Locale mt_MT = new Locale("mt", "MT");
        name = zone.getDisplayName(mt_MT);
        //*****************************************************************
        // THE FOLLOWING LINE MUST BE UPDATED IF THE LOCALE DATA CHANGES
        // THE FOLLOWING LINE MUST BE UPDATED IF THE LOCALE DATA CHANGES
        // THE FOLLOWING LINE MUST BE UPDATED IF THE LOCALE DATA CHANGES
        //*****************************************************************
        logln("PST(mt_MT)->" + name);


        // Now be smart -- check to see if zh resource is even present.
        // If not, we expect the en fallback behavior.


        // in icu4j 2.1 we know we have the zh_CN locale data, though it's incomplete
//    /"DateFormatZoneData", 
        UResourceBundle enRB = UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME,Locale.ENGLISH);
        UResourceBundle mtRB = UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, mt_MT);
        boolean noZH = enRB == mtRB;


        if (noZH) {
            logln("Warning: Not testing the mt_MT behavior because resource is absent");
            if (!name.equals("Pacific Standard Time"))
                errln("Fail: Expected Pacific Standard Time for PST in mt_MT but got ");
        }
        // dlf - we will use generic time, or if unavailable, GMT for standard time in the zone 
        //     - we now (3.4.1) have localizations for this zone, so change test string
        else if(!name.equals("Stati Uniti (Los Angeles)") &&
            !name.equals("GMT-08:00") &&
            !name.equals("GMT-8:00") &&
            !name.equals("GMT-0800") &&
            !name.equals("GMT-800")) {


            errln("Fail: got '" + name + "', expected GMT-08:00 or something similar\n" +
                  "************************************************************\n" +
                  "THE ABOVE FAILURE MAY JUST MEAN THE LOCALE DATA HAS CHANGED\n" +
                  "************************************************************");
        }
        
        // Now try a non-existent zone
        zone2 = new SimpleTimeZone(90*60*1000, "xyzzy");
        name = zone2.getDisplayName(Locale.ENGLISH);
        logln("GMT+90min->" + name);
        if (!name.equals("GMT+01:30") &&
            !name.equals("GMT+1:30") &&
            !name.equals("GMT+0130") &&
            !name.equals("GMT+130"))
            errln("Fail: Expected GMT+01:30 or something similar");
        
        // cover getDisplayName() - null arg
        ULocale save = ULocale.getDefault();
        ULocale.setDefault(ULocale.US);
        name = zone2.getDisplayName();
        logln("GMT+90min->" + name + "for default display locale");
        if (!name.equals("GMT+01:30") &&
            !name.equals("GMT+1:30") &&
            !name.equals("GMT+0130") &&
            !name.equals("GMT+130"))

View Full Code Here


    public void TestGenericAPI() {
        String id = "NewGMT";
        int offset = 12345;


        SimpleTimeZone zone = new SimpleTimeZone(offset, id);
        if (zone.useDaylightTime()) errln("FAIL: useDaylightTime should return false");


        TimeZone zoneclone = (TimeZone)zone.clone();
        if (!zoneclone.equals(zone)) errln("FAIL: clone or operator== failed");
        zoneclone.setID("abc");
        if (zoneclone.equals(zone)) errln("FAIL: clone or operator!= failed");
        // delete zoneclone;


        zoneclone = (TimeZone)zone.clone();
        if (!zoneclone.equals(zone)) errln("FAIL: clone or operator== failed");
        zoneclone.setRawOffset(45678);
        if (zoneclone.equals(zone)) errln("FAIL: clone or operator!= failed");


        // C++ only

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    public void TestRuleAPI()
    {
        // ErrorCode status = ZERO_ERROR;


        int offset = (int)(60*60*1000*1.75); // Pick a weird offset
        SimpleTimeZone zone = new SimpleTimeZone(offset, "TestZone");
        if (zone.useDaylightTime()) errln("FAIL: useDaylightTime should return false");


        // Establish our expected transition times.  Do this with a non-DST
        // calendar with the (above) declared local offset.
        GregorianCalendar gc = new GregorianCalendar(zone);
        gc.clear();
        gc.set(1990, Calendar.MARCH, 1);
        long marchOneStd = gc.getTime().getTime(); // Local Std time midnight
        gc.clear();
        gc.set(1990, Calendar.JULY, 1);
        long julyOneStd = gc.getTime().getTime(); // Local Std time midnight


        // Starting and ending hours, WALL TIME
        int startHour = (int)(2.25 * 3600000);
        int endHour   = (int)(3.5  * 3600000);


        zone.setStartRule(Calendar.MARCH, 1, 0, startHour);
        zone.setEndRule  (Calendar.JULY,  1, 0, endHour);


        gc = new GregorianCalendar(zone);
        // if (failure(status, "new GregorianCalendar")) return;


        long marchOne = marchOneStd + startHour;
        long julyOne = julyOneStd + endHour - 3600000; // Adjust from wall to Std time


        long expMarchOne = 636251400000L;
        if (marchOne != expMarchOne)
        {
            errln("FAIL: Expected start computed as " + marchOne +
                  " = " + new Date(marchOne));
            logln("      Should be                  " + expMarchOne +
                  " = " + new Date(expMarchOne));
        }


        long expJulyOne = 646793100000L;
        if (julyOne != expJulyOne)
        {
            errln("FAIL: Expected start computed as " + julyOne +
                  " = " + new Date(julyOne));
            logln("      Should be                  " + expJulyOne +
                  " = " + new Date(expJulyOne));
        }


        Calendar cal1 = Calendar.getInstance();
        cal1.set(1990, Calendar.JANUARY, 1);
        Calendar cal2 = Calendar.getInstance();
        cal2.set(1990, Calendar.JUNE, 1);
        _testUsingBinarySearch(zone, cal1.getTimeInMillis(),
                               cal2.getTimeInMillis(), marchOne);
        cal1.set(1990, Calendar.JUNE, 1);
        cal2.set(1990, Calendar.DECEMBER, 31);
        _testUsingBinarySearch(zone, cal1.getTimeInMillis(),
                               cal2.getTimeInMillis(), julyOne);


        if (zone.inDaylightTime(new Date(marchOne - 1000)) ||
            !zone.inDaylightTime(new Date(marchOne)))
            errln("FAIL: Start rule broken");
        if (!zone.inDaylightTime(new Date(julyOne - 1000)) ||
            zone.inDaylightTime(new Date(julyOne)))
            errln("FAIL: End rule broken");


        zone.setStartYear(1991);
        if (zone.inDaylightTime(new Date(marchOne)) ||
            zone.inDaylightTime(new Date(julyOne - 1000)))
            errln("FAIL: Start year broken");


        // failure(status, "TestRuleAPI");
        // delete gc;
        // delete zone;

View Full Code Here

     */
    public void TestDSTSavings() {
        // It might be better to find a way to integrate this test into the main TimeZone
        // tests above, but I don't have time to figure out how to do this (or if it's
        // even really a good idea).  Let's consider that a future.  --rtg 1/27/98
        SimpleTimeZone tz = new SimpleTimeZone(-5 * millisPerHour, "dstSavingsTest",
                                               Calendar.MARCH, 1, 0, 0, Calendar.SEPTEMBER, 1, 0, 0,
                                               (int)(0.5 * millisPerHour));


        if (tz.getRawOffset() != -5 * millisPerHour)
            errln("Got back a raw offset of " + (tz.getRawOffset() / millisPerHour) +
                  " hours instead of -5 hours.");
        if (!tz.useDaylightTime())
            errln("Test time zone should use DST but claims it doesn't.");
        if (tz.getDSTSavings() != 0.5 * millisPerHour)
            errln("Set DST offset to 0.5 hour, but got back " + (tz.getDSTSavings() /
                                                                 millisPerHour) + " hours instead.");


        int offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.JANUARY, 1,
                                  Calendar.THURSDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10 AM, 1/1/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.JUNE, 1, Calendar.MONDAY,
                              10 * millisPerHour);
        if (offset != -4.5 * millisPerHour)
            errln("The offset for 10 AM, 6/1/98 should have been -4.5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        tz.setDSTSavings(millisPerHour);
        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.JANUARY, 1,
                              Calendar.THURSDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10 AM, 1/1/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.JUNE, 1, Calendar.MONDAY,
                              10 * millisPerHour);
        if (offset != -4 * millisPerHour)
            errln("The offset for 10 AM, 6/1/98 (with a 1-hour DST offset) should have been -4 hours, but we got "
                  + (offset / millisPerHour) + " hours.");
    }

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    public void TestAlternateRules() {
        // Like TestDSTSavings, this test should probably be integrated somehow with the main
        // test at the top of this class, but I didn't have time to figure out how to do that.
        //                      --rtg 1/28/98


        SimpleTimeZone tz = new SimpleTimeZone(-5 * millisPerHour, "alternateRuleTest");


        // test the day-of-month API
        tz.setStartRule(Calendar.MARCH, 10, 12 * millisPerHour);
        tz.setEndRule(Calendar.OCTOBER, 20, 12 * millisPerHour);


        int offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.MARCH, 5,
                                  Calendar.THURSDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10AM, 3/5/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.MARCH, 15,
                              Calendar.SUNDAY, 10 * millisPerHour);
        if (offset != -4 * millisPerHour)
            errln("The offset for 10AM, 3/15/98 should have been -4 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.OCTOBER, 15,
                              Calendar.THURSDAY, 10 * millisPerHour);
        if (offset != -4 * millisPerHour)
            errln("The offset for 10AM, 10/15/98 should have been -4 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.OCTOBER, 25,
                              Calendar.SUNDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10AM, 10/25/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        // test the day-of-week-after-day-in-month API
        tz.setStartRule(Calendar.MARCH, 10, Calendar.FRIDAY, 12 * millisPerHour, true);
        tz.setEndRule(Calendar.OCTOBER, 20, Calendar.FRIDAY, 12 * millisPerHour, false);


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.MARCH, 11,
                              Calendar.WEDNESDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10AM, 3/11/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.MARCH, 14,
                              Calendar.SATURDAY, 10 * millisPerHour);
        if (offset != -4 * millisPerHour)
            errln("The offset for 10AM, 3/14/98 should have been -4 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.OCTOBER, 15,
                              Calendar.THURSDAY, 10 * millisPerHour);
        if (offset != -4 * millisPerHour)
            errln("The offset for 10AM, 10/15/98 should have been -4 hours, but we got "
                  + (offset / millisPerHour) + " hours.");


        offset = tz.getOffset(GregorianCalendar.AD, 1998, Calendar.OCTOBER, 17,
                              Calendar.SATURDAY, 10 * millisPerHour);
        if (offset != -5 * millisPerHour)
            errln("The offset for 10AM, 10/17/98 should have been -5 hours, but we got "
                  + (offset / millisPerHour) + " hours.");
    }

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        // Set up TimeZone objects - OlsonTimeZone, SimpleTimeZone and RuleBasedTimeZone
        BasicTimeZone[] TESTZONES = new BasicTimeZone[3];


        TESTZONES[0] = (BasicTimeZone)TimeZone.getTimeZone("America/Los_Angeles", TimeZone.TIMEZONE_ICU);
        TESTZONES[1] = new SimpleTimeZone(-8*HOUR, "Simple Pacific Time",
                                            Calendar.APRIL, 1, Calendar.SUNDAY, 2*HOUR,
                                            Calendar.OCTOBER, -1, Calendar.SUNDAY, 2*HOUR);


        InitialTimeZoneRule ir = new InitialTimeZoneRule(
                "Pacific Standard Time", // Initial time Name

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            return;
        }
        long current = System.currentTimeMillis();


        if (current < finalMillis) {
            SimpleTimeZone stz = new SimpleTimeZone(offsetMillis, getID());


            boolean bDst = useDaylightTime();
            if (bDst) {
                TimeZoneRule[] currentRules = getSimpleTimeZoneRulesNear(current);
                if (currentRules.length != 3) {
                    // DST was observed at the beginning of this year, so useDaylightTime
                    // returned true.  getSimpleTimeZoneRulesNear requires at least one
                    // future transition for making a pair of rules.  This implementation
                    // rolls back the time before the latest offset transition.
                    TimeZoneTransition tzt = getPreviousTransition(current, false);
                    if (tzt != null) {
                        currentRules = getSimpleTimeZoneRulesNear(tzt.getTime() - 1);
                    }
                }
                if (currentRules.length == 3
                        && (currentRules[1] instanceof AnnualTimeZoneRule)
                        && (currentRules[2] instanceof AnnualTimeZoneRule)) {
                    // A pair of AnnualTimeZoneRule
                    AnnualTimeZoneRule r1 = (AnnualTimeZoneRule)currentRules[1];
                    AnnualTimeZoneRule r2 = (AnnualTimeZoneRule)currentRules[2];
                    DateTimeRule start, end;
                    int offset1 = r1.getRawOffset() + r1.getDSTSavings();
                    int offset2 = r2.getRawOffset() + r2.getDSTSavings();
                    int sav;
                    if (offset1 > offset2) {
                        start = r1.getRule();
                        end = r2.getRule();
                        sav = offset1 - offset2;
                    } else {
                        start = r2.getRule();
                        end = r1.getRule();
                        sav = offset2 - offset1;
                    }
                    // getSimpleTimeZoneRulesNear always return rules using DOW / WALL_TIME
                    stz.setStartRule(start.getRuleMonth(), start.getRuleWeekInMonth(), start.getRuleDayOfWeek(),
                                            start.getRuleMillisInDay());
                    stz.setEndRule(end.getRuleMonth(), end.getRuleWeekInMonth(), end.getRuleDayOfWeek(),
                                            end.getRuleMillisInDay());
                    // set DST saving amount and start year
                    stz.setDSTSavings(sav);
                } else {
                    // This could only happen if last rule is DST
                    // and the rule used forever.  For example, Asia/Dhaka
                    // in tzdata2009i stays in DST forever.


                    // Hack - set DST starting at midnight on Jan 1st,
                    // ending 23:59:59.999 on Dec 31st
                    stz.setStartRule(0, 1, 0);
                    stz.setEndRule(11, 31, Grego.MILLIS_PER_DAY - 1);
                }
            }


            int[] fields = Grego.timeToFields(current, null);
            finalYear = fields[0] - 1; // finalYear is (year of finalMillis) - 1
            finalMillis = Grego.fieldsToDay(fields[0], 0, 1);


            if (bDst) {
                // we probably do not need to set start year of final rule
                // to finalzone itself, but we always do this for now.
                stz.setStartYear(finalYear);
            }


            finalZone = stz;


        } else {

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                // 3, 1, -1, 7200, 0, 9, -31, -1, 7200, 0, 3600
                data = r.getIntVector();
                if ( data.length == 11) {
                    //U_DEBUG_TZ_MSG(("zone%s, rule%s: {%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d}", zKey, ures_getKey(r), 
                      //            data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7], data[8], data[9], data[10]));
                    finalZone = new SimpleTimeZone(rawOffset, "",
                        data[0], data[1], data[2],
                        data[3] * Grego.MILLIS_PER_SECOND,
                        data[4],
                        data[5], data[6], data[7],
                        data[8] * Grego.MILLIS_PER_SECOND,

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     * 
     * @param args - the command line arguments.
     */
    public static void main(String[] args)
    {
        TimeZone utc = new SimpleTimeZone(0, "UTC");


        // Jitterbug 5211: .Net System.DateTime uses the proleptic calendar,
        // while ICU by default uses the Julian calendar before 1582.
        // Original code: Calendar cal = Calendar.getInstance(utc, Locale.ENGLISH);
        // Use a proleptic Gregorian calendar for 0001AD and later by setting

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