Example usage for java.time.zone ZoneOffsetTransition getInstant

Introduction

In this page you can find the example usage for java.time.zone ZoneOffsetTransition getInstant.

Prototype

public Instant getInstant() 

Source Link

Document

Gets the transition instant.

Usage

From source file:org.nodatime.tzvalidate.Java8Dump.java

@Override
public ZoneTransitions getTransitions(String id, int fromYear, int toYear) {
    ZoneId zone = ZoneId.of(id);
    ZoneRules rules = zone.getRules();
    DateTimeFormatter nameFormat = DateTimeFormatter.ofPattern("zzz", Locale.US);
    ZoneTransitions transitions = new ZoneTransitions(id);

    Instant start = ZonedDateTime.of(fromYear, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC).toInstant();
    transitions.addTransition(null, rules.getOffset(start).getTotalSeconds() * 1000,
            rules.isDaylightSavings(start), nameFormat.format(start.atZone(zone)));
    Instant end = ZonedDateTime.of(toYear, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC).toInstant();

    ZoneOffsetTransition transition = rules.nextTransition(start.minusNanos(1));
    while (transition != null && transition.getInstant().isBefore(end)) {
        Instant instant = transition.getInstant();
        transitions.addTransition(new Date(instant.toEpochMilli()),
                rules.getOffset(instant).getTotalSeconds() * 1000, rules.isDaylightSavings(instant),
                nameFormat.format(instant.atZone(zone)));
        transition = rules.nextTransition(instant);
    }//from w w w.j av  a 2s  . c  om
    return transitions;
}

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