Examples with BasicTimeZone android.icu.util.BasicTimeZone used on opensource projects

Example 16 with BasicTimeZone

use of android.icu.util.BasicTimeZone in project j2objc by google.

the class TimeZoneRuleTest method TestGetSimpleRules.

/*
     * Extract simple rules from an OlsonTimeZone and make sure the rule format matches
     * the expected format.
     */
@Test
public void TestGetSimpleRules() {
    long[] testTimes = new long[] { getUTCMillis(1970, Calendar.JANUARY, 1), getUTCMillis(2000, Calendar.MARCH, 31), getUTCMillis(2005, Calendar.JULY, 1), getUTCMillis(2010, Calendar.NOVEMBER, 1) };
    String[] tzids = getTestZIDs();
    for (int n = 0; n < testTimes.length; n++) {
        long time = testTimes[n];
        for (int i = 0; i < tzids.length; i++) {
            BasicTimeZone tz = (BasicTimeZone) TimeZone.getTimeZone(tzids[i], TimeZone.TIMEZONE_ICU);
            TimeZoneRule[] rules = tz.getSimpleTimeZoneRulesNear(time);
            if (rules == null) {
                errln("FAIL: Failed to extract simple rules for " + tzids[i] + " at " + time);
            } else {
                if (rules.length == 1) {
                    if (!(rules[0] instanceof InitialTimeZoneRule)) {
                        errln("FAIL: Unexpected rule object type is returned for " + tzids[i] + " at " + time);
                    }
                } else if (rules.length == 3) {
                    if (!(rules[0] instanceof InitialTimeZoneRule) || !(rules[1] instanceof AnnualTimeZoneRule) || !(rules[2] instanceof AnnualTimeZoneRule)) {
                        errln("FAIL: Unexpected rule object type is returned for " + tzids[i] + " at " + time);
                    }
                    for (int idx = 1; idx <= 2; idx++) {
                        DateTimeRule dtr = ((AnnualTimeZoneRule) rules[idx]).getRule();
                        if (dtr.getTimeRuleType() != DateTimeRule.WALL_TIME) {
                            errln("FAIL: WALL_TIME is not used as the time rule in the time zone rule(" + idx + ") for " + tzids[i] + " at " + time);
                        }
                        if (dtr.getDateRuleType() != DateTimeRule.DOW) {
                            errln("FAIL: DOW is not used as the date rule in the time zone rule(" + idx + ") for " + tzids[i] + " at " + time);
                        }
                    }
                } else {
                    errln("FAIL: Unexpected number of rules returned for " + tzids[i] + " at " + time);
                }
            }
        }
    }
}

Example 17 with BasicTimeZone

use of android.icu.util.BasicTimeZone in project j2objc by google.

the class TimeZoneRuleTest method TestHistoricalRuleBasedTimeZone.

/*
     * Test equivalency between OlsonTimeZone and custom RBTZ representing the
     * equivalent rules in a certain time range
     */
@Test
public void TestHistoricalRuleBasedTimeZone() {
    // Compare to America/New_York with equivalent RBTZ
    TimeZone ny = TimeZone.getTimeZone("America/New_York", TimeZone.TIMEZONE_ICU);
    // RBTZ
    InitialTimeZoneRule ir = new InitialTimeZoneRule("EST", -5 * HOUR, 0);
    RuleBasedTimeZone rbtz = new RuleBasedTimeZone("EST5EDT", ir);
    DateTimeRule dtr;
    AnnualTimeZoneRule tzr;
    // Standard time
    dtr = new DateTimeRule(Calendar.OCTOBER, -1, Calendar.SUNDAY, 2 * HOUR, // Last Sunday in October, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EST", -5 * HOUR, /* rawOffset */
    0, /* dstSavings */
    dtr, 1967, 2006);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.NOVEMBER, 1, Calendar.SUNDAY, true, 2 * HOUR, // SUN>=1 in November, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EST", -5 * HOUR, 0, dtr, 2007, AnnualTimeZoneRule.MAX_YEAR);
    rbtz.addTransitionRule(tzr);
    // Daylight saving time
    dtr = new DateTimeRule(Calendar.APRIL, -1, Calendar.SUNDAY, 2 * HOUR, // Last Sunday in April, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 1967, 1973);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.JANUARY, 6, 2 * HOUR, // January 6, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 1974, 1974);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.FEBRUARY, 23, 2 * HOUR, // February 23, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 1975, 1975);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.APRIL, -1, Calendar.SUNDAY, 2 * HOUR, // Last Sunday in April, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 1976, 1986);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.APRIL, 1, Calendar.SUNDAY, true, 2 * HOUR, // SUN>=1 in April, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 1987, 2006);
    rbtz.addTransitionRule(tzr);
    dtr = new DateTimeRule(Calendar.MARCH, 8, Calendar.SUNDAY, true, 2 * HOUR, // SUN>=8 in March, at 2AM wall time
    DateTimeRule.WALL_TIME);
    tzr = new AnnualTimeZoneRule("EDT", -5 * HOUR, 1 * HOUR, dtr, 2007, AnnualTimeZoneRule.MAX_YEAR);
    rbtz.addTransitionRule(tzr);
    // hasEquivalentTransitions
    long jan1_1950 = getUTCMillis(1950, Calendar.JANUARY, 1);
    long jan1_1967 = getUTCMillis(1971, Calendar.JANUARY, 1);
    long jan1_2010 = getUTCMillis(2010, Calendar.JANUARY, 1);
    if (!(((BasicTimeZone) ny).hasEquivalentTransitions(rbtz, jan1_1967, jan1_2010))) {
        errln("FAIL: The RBTZ must be equivalent to America/New_York between 1967 and 2010");
    }
    if (((BasicTimeZone) ny).hasEquivalentTransitions(rbtz, jan1_1950, jan1_2010)) {
        errln("FAIL: The RBTZ must not be equivalent to America/New_York between 1950 and 2010");
    }
    // Same with above, but calling RBTZ#hasEquivalentTransitions against OlsonTimeZone
    if (!rbtz.hasEquivalentTransitions(ny, jan1_1967, jan1_2010)) {
        errln("FAIL: The RBTZ must be equivalent to America/New_York between 1967 and 2010");
    }
    if (rbtz.hasEquivalentTransitions(ny, jan1_1950, jan1_2010)) {
        errln("FAIL: The RBTZ must not be equivalent to America/New_York between 1950 and 2010");
    }
    // TimeZone APIs
    if (ny.hasSameRules(rbtz) || rbtz.hasSameRules(ny)) {
        errln("FAIL: hasSameRules must return false");
    }
    RuleBasedTimeZone rbtzc = (RuleBasedTimeZone) rbtz.clone();
    if (!rbtz.hasSameRules(rbtzc) || !rbtz.hasEquivalentTransitions(rbtzc, jan1_1950, jan1_2010)) {
        errln("FAIL: hasSameRules/hasEquivalentTransitions must return true for cloned RBTZs");
    }
    long[] times = { getUTCMillis(2006, Calendar.MARCH, 15), getUTCMillis(2006, Calendar.NOVEMBER, 1), getUTCMillis(2007, Calendar.MARCH, 15), getUTCMillis(2007, Calendar.NOVEMBER, 1), getUTCMillis(2008, Calendar.MARCH, 15), getUTCMillis(2008, Calendar.NOVEMBER, 1) };
    int[] offsets1 = new int[2];
    int[] offsets2 = new int[2];
    for (int i = 0; i < times.length; i++) {
        // Check getOffset - must return the same results for these time data
        rbtz.getOffset(times[i], false, offsets1);
        ny.getOffset(times[i], false, offsets2);
        if (offsets1[0] != offsets2[0] || offsets1[1] != offsets2[1]) {
            errln("FAIL: Incompatible time zone offsets for ny and rbtz");
        }
        // Check inDaylightTime
        Date d = new Date(times[i]);
        if (rbtz.inDaylightTime(d) != ny.inDaylightTime(d)) {
            errln("FAIL: Incompatible daylight saving time for ny and rbtz");
        }
    }
}

Example 18 with BasicTimeZone

use of android.icu.util.BasicTimeZone in project j2objc by google.

the class TimeZoneRuleTest method TestVTimeZoneRoundTrip.

/*
     * Write out time zone rules of OlsonTimeZone into VTIMEZONE format, create a new
     * VTimeZone from the VTIMEZONE data, then compare transitions
     */
@Test
public void TestVTimeZoneRoundTrip() {
    long startTime = getUTCMillis(1850, Calendar.JANUARY, 1);
    long endTime = getUTCMillis(2050, Calendar.JANUARY, 1);
    String[] tzids = getTestZIDs();
    for (int i = 0; i < tzids.length; i++) {
        BasicTimeZone olsontz = (BasicTimeZone) TimeZone.getTimeZone(tzids[i], TimeZone.TIMEZONE_ICU);
        VTimeZone vtz_org = VTimeZone.create(tzids[i]);
        vtz_org.setTZURL("http://source.icu-project.org/timezone");
        vtz_org.setLastModified(new Date());
        VTimeZone vtz_new = null;
        try {
            // Write out VTIMEZONE
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            OutputStreamWriter writer = new OutputStreamWriter(baos);
            vtz_org.write(writer);
            writer.close();
            byte[] vtzdata = baos.toByteArray();
            // Read VTIMEZONE
            ByteArrayInputStream bais = new ByteArrayInputStream(vtzdata);
            InputStreamReader reader = new InputStreamReader(bais);
            vtz_new = VTimeZone.create(reader);
            reader.close();
            // Write out VTIMEZONE one more time
            ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
            OutputStreamWriter writer1 = new OutputStreamWriter(baos1);
            vtz_new.write(writer1);
            writer1.close();
            byte[] vtzdata1 = baos1.toByteArray();
            // Make sure VTIMEZONE data is exactly same with the first one
            if (vtzdata.length != vtzdata1.length) {
                errln("FAIL: different VTIMEZONE data length");
            }
            for (int j = 0; j < vtzdata.length; j++) {
                if (vtzdata[j] != vtzdata1[j]) {
                    errln("FAIL: different VTIMEZONE data");
                    break;
                }
            }
        } catch (IOException ioe) {
            errln("FAIL: IO error while writing/reading VTIMEZONE data");
        }
        // VTIMEZONE.
        if (vtz_new.getOffset(startTime) != olsontz.getOffset(startTime)) {
            errln("FAIL: VTimeZone for " + tzids[i] + " is not equivalent to its OlsonTimeZone corresponding at " + startTime);
        }
        TimeZoneTransition tzt = olsontz.getNextTransition(startTime, false);
        if (tzt != null) {
            if (!vtz_new.hasEquivalentTransitions(olsontz, tzt.getTime(), endTime, true)) {
                int maxDelta = 1000;
                if (!hasEquivalentTransitions(vtz_new, olsontz, tzt.getTime() + maxDelta, endTime, true, maxDelta)) {
                    errln("FAIL: VTimeZone for " + tzids[i] + " is not equivalent to its OlsonTimeZone corresponding.");
                } else {
                    logln("VTimeZone for " + tzids[i] + " differs from its OlsonTimeZone corresponding with maximum transition time delta - " + maxDelta);
                }
            }
            if (!vtz_new.hasEquivalentTransitions(olsontz, tzt.getTime(), endTime, false)) {
                logln("VTimeZone for " + tzids[i] + " is not equivalent to its OlsonTimeZone corresponding in strict comparison mode.");
            }
        }
    }
}

Example 19 with BasicTimeZone

use of android.icu.util.BasicTimeZone in project j2objc by google.

the class TimeZoneRuleTest method compareTransitionsAscending.

/*
     * Compare all time transitions in 2 time zones in the specified time range in ascending order
     */
private void compareTransitionsAscending(TimeZone tz1, TimeZone tz2, long start, long end, boolean inclusive) {
    BasicTimeZone z1 = (BasicTimeZone) tz1;
    BasicTimeZone z2 = (BasicTimeZone) tz2;
    String zid1 = tz1.getID();
    String zid2 = tz2.getID();
    long time = start;
    while (true) {
        TimeZoneTransition tzt1 = z1.getNextTransition(time, inclusive);
        TimeZoneTransition tzt2 = z2.getNextTransition(time, inclusive);
        boolean inRange1 = false;
        boolean inRange2 = false;
        if (tzt1 != null) {
            if (tzt1.getTime() < end || (inclusive && tzt1.getTime() == end)) {
                inRange1 = true;
            }
        }
        if (tzt2 != null) {
            if (tzt2.getTime() < end || (inclusive && tzt2.getTime() == end)) {
                inRange2 = true;
            }
        }
        if (!inRange1 && !inRange2) {
            // No more transition in the range
            break;
        }
        if (!inRange1) {
            errln("FAIL: " + zid1 + " does not have any transitions after " + time + " before " + end);
            break;
        }
        if (!inRange2) {
            errln("FAIL: " + zid2 + " does not have any transitions after " + time + " before " + end);
            break;
        }
        if (tzt1.getTime() != tzt2.getTime()) {
            errln("FAIL: First transition after " + time + " " + zid1 + "[" + tzt1.getTime() + "] " + zid2 + "[" + tzt2.getTime() + "]");
            break;
        }
        time = tzt1.getTime();
        if (inclusive) {
            time++;
        }
    }
}

Example 20 with BasicTimeZone

use of android.icu.util.BasicTimeZone in project j2objc by google.

the class TimeZoneTest method isDaylightTimeAvailable.

private static boolean isDaylightTimeAvailable(TimeZone tz, long start) {
    if (tz.inDaylightTime(new Date(start))) {
        return true;
    }
    long date;
    if (tz instanceof BasicTimeZone) {
        BasicTimeZone btz = (BasicTimeZone) tz;
        // check future transitions, up to 100
        date = start;
        for (int i = 0; i < 100; i++) {
            TimeZoneTransition tzt = btz.getNextTransition(date, false);
            if (tzt == null) {
                // no more transitions
                break;
            }
            if (tzt.getTo().getDSTSavings() != 0) {
                return true;
            }
            date = tzt.getTime();
        }
    } else {
        // check future times by incrementing 30 days, up to 200 times (about 16 years)
        final long inc = 30L * 24 * 60 * 60 * 1000;
        int[] offsets = new int[2];
        date = start + inc;
        for (int i = 0; i < 200; i++, date += inc) {
            tz.getOffset(date, false, offsets);
            if (offsets[1] != 0) {
                return true;
            }
        }
    }
    return false;
}