TimeZoneRule *
RuleBasedTimeZone::findRuleInFinal(UDate date, UBool local,
int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const
{
if (fFinalRules == NULL)
{
return NULL;
}
AnnualTimeZoneRule * fr0 = (AnnualTimeZoneRule *)fFinalRules->elementAt(0);
AnnualTimeZoneRule * fr1 = (AnnualTimeZoneRule *)fFinalRules->elementAt(1);
if (fr0 == NULL || fr1 == NULL)
{
return NULL;
}
UDate start0, start1;
UDate base;
int32_t localDelta;
base = date;
if (local)
{
localDelta = getLocalDelta(fr1->getRawOffset(), fr1->getDSTSavings(),
fr0->getRawOffset(), fr0->getDSTSavings(),
NonExistingTimeOpt, DuplicatedTimeOpt);
base -= localDelta;
}
UBool avail0 = fr0->getPreviousStart(base, fr1->getRawOffset(), fr1->getDSTSavings(), TRUE, start0);
base = date;
if (local)
{
localDelta = getLocalDelta(fr0->getRawOffset(), fr0->getDSTSavings(),
fr1->getRawOffset(), fr1->getDSTSavings(),
NonExistingTimeOpt, DuplicatedTimeOpt);
base -= localDelta;
}
UBool avail1 = fr1->getPreviousStart(base, fr0->getRawOffset(), fr0->getDSTSavings(), TRUE, start1);
if (avail0 && (!avail1 || start0 > start1))
{
return fr0;
}
else if (avail1)
{
return fr1;
}
return NULL;
}
UDate
RuleBasedTimeZone::getTransitionTime(Transition* transition, UBool local,
int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const {
UDate time = transition->time;
if (local) {
time += getLocalDelta(transition->from->getRawOffset(), transition->from->getDSTSavings(),
transition->to->getRawOffset(), transition->to->getDSTSavings(),
NonExistingTimeOpt, DuplicatedTimeOpt);
}
return time;
}