// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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//
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package com.google.protobuf.util;
import com.google.protobuf.Duration;
import com.google.protobuf.Timestamp;
import java.math.BigInteger;
import java.text.ParseException;
/**
* Utilities to help create/manipulate Timestamp/Duration
*
* @deprecated Use {@link Durations} and {@link Timestamps} instead.
*/
@Deprecated
public final class TimeUtil {
// Timestamp for "0001-01-01T00:00:00Z"
public static final long TIMESTAMP_SECONDS_MIN = -62135596800L;
// Timestamp for "9999-12-31T23:59:59Z"
public static final long TIMESTAMP_SECONDS_MAX = 253402300799L;
public static final long DURATION_SECONDS_MIN = -315576000000L;
public static final long DURATION_SECONDS_MAX = 315576000000L;
private static final long NANOS_PER_SECOND = 1000000000;
private TimeUtil() {}
/**
* Convert Timestamp to RFC 3339 date string format. The output will always
* be Z-normalized and uses 3, 6 or 9 fractional digits as required to
* represent the exact value. Note that Timestamp can only represent time
* from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. See
* https://www.ietf.org/rfc/rfc3339.txt
*
* <p>Example of generated format: "1972-01-01T10:00:20.021Z"
*
* @return The string representation of the given timestamp.
* @throws IllegalArgumentException if the given timestamp is not in the
* valid range.
* @deprecated Use {@link Timestamps#toString} instead.
*/
@Deprecated
public static String toString(Timestamp timestamp) {
return Timestamps.toString(timestamp);
}
/**
* Parse from RFC 3339 date string to Timestamp. This method accepts all
* outputs of {@link #toString(Timestamp)} and it also accepts any fractional
* digits (or none) and any offset as long as they fit into nano-seconds
* precision.
*
* <p>Example of accepted format: "1972-01-01T10:00:20.021-05:00"
*
* @return A Timestamp parsed from the string.
* @throws ParseException if parsing fails.
* @deprecated Use {@link Timestamps#parse} instead.
*/
@Deprecated
public static Timestamp parseTimestamp(String value) throws ParseException {
return Timestamps.parse(value);
}
/**
* Convert Duration to string format. The string format will contains 3, 6,
* or 9 fractional digits depending on the precision required to represent
* the exact Duration value. For example: "1s", "1.010s", "1.000000100s",
* "-3.100s" The range that can be represented by Duration is from
* -315,576,000,000 to +315,576,000,000 inclusive (in seconds).
*
* @return The string representation of the given duration.
* @throws IllegalArgumentException if the given duration is not in the valid
* range.
* @deprecated Use {@link Durations#toString} instead.
*/
@Deprecated
public static String toString(Duration duration) {
return Durations.toString(duration);
}
/**
* Parse from a string to produce a duration.
*
* @return A Duration parsed from the string.
* @throws ParseException if parsing fails.
* @deprecated Use {@link Durations#parse} instead.
*/
@Deprecated
public static Duration parseDuration(String value) throws ParseException {
return Durations.parse(value);
}
/**
* Create a Timestamp from the number of milliseconds elapsed from the epoch.
*
* @deprecated Use {@link Timestamps#fromMillis} instead.
*/
@Deprecated
public static Timestamp createTimestampFromMillis(long milliseconds) {
return Timestamps.fromMillis(milliseconds);
}
/**
* Create a Duration from the number of milliseconds.
*
* @deprecated Use {@link Durations#fromMillis} instead.
*/
@Deprecated
public static Duration createDurationFromMillis(long milliseconds) {
return Durations.fromMillis(milliseconds);
}
/**
* Convert a Timestamp to the number of milliseconds elapsed from the epoch.
*
* <p>The result will be rounded down to the nearest millisecond. E.g., if the
* timestamp represents "1969-12-31T23:59:59.999999999Z", it will be rounded
* to -1 millisecond.
*
* @deprecated Use {@link Timestamps#toMillis} instead.
*/
@Deprecated
public static long toMillis(Timestamp timestamp) {
return Timestamps.toMillis(timestamp);
}
/**
* Convert a Duration to the number of milliseconds.The result will be
* rounded towards 0 to the nearest millisecond. E.g., if the duration
* represents -1 nanosecond, it will be rounded to 0.
*
* @deprecated Use {@link Durations#toMillis} instead.
*/
@Deprecated
public static long toMillis(Duration duration) {
return Durations.toMillis(duration);
}
/**
* Create a Timestamp from the number of microseconds elapsed from the epoch.
*
* @deprecated Use {@link Timestamps#fromMicros} instead.
*/
@Deprecated
public static Timestamp createTimestampFromMicros(long microseconds) {
return Timestamps.fromMicros(microseconds);
}
/**
* Create a Duration from the number of microseconds.
*
* @deprecated Use {@link Durations#fromMicros} instead.
*/
@Deprecated
public static Duration createDurationFromMicros(long microseconds) {
return Durations.fromMicros(microseconds);
}
/**
* Convert a Timestamp to the number of microseconds elapsed from the epoch.
*
* <p>The result will be rounded down to the nearest microsecond. E.g., if the
* timestamp represents "1969-12-31T23:59:59.999999999Z", it will be rounded
* to -1 millisecond.
*
* @deprecated Use {@link Timestamps#toMicros} instead.
*/
@Deprecated
public static long toMicros(Timestamp timestamp) {
return Timestamps.toMicros(timestamp);
}
/**
* Convert a Duration to the number of microseconds.The result will be
* rounded towards 0 to the nearest microseconds. E.g., if the duration
* represents -1 nanosecond, it will be rounded to 0.
*
* @deprecated Use {@link Durations#toMicros} instead.
*/
@Deprecated
public static long toMicros(Duration duration) {
return Durations.toMicros(duration);
}
/**
* Create a Timestamp from the number of nanoseconds elapsed from the epoch.
*
* @deprecated Use {@link Timestamps#fromNanos} instead.
*/
@Deprecated
public static Timestamp createTimestampFromNanos(long nanoseconds) {
return Timestamps.fromNanos(nanoseconds);
}
/**
* Create a Duration from the number of nanoseconds.
*
* @deprecated Use {@link Durations#fromNanos} instead.
*/
@Deprecated
public static Duration createDurationFromNanos(long nanoseconds) {
return Durations.fromNanos(nanoseconds);
}
/**
* Convert a Timestamp to the number of nanoseconds elapsed from the epoch.
*
* @deprecated Use {@link Timestamps#toNanos} instead.
*/
@Deprecated
public static long toNanos(Timestamp timestamp) {
return Timestamps.toNanos(timestamp);
}
/**
* Convert a Duration to the number of nanoseconds.
*
* @deprecated Use {@link Durations#toNanos} instead.
*/
@Deprecated
public static long toNanos(Duration duration) {
return Durations.toNanos(duration);
}
/**
* Get the current time.
*
* @deprecated Use {@code Timestamps.fromMillis(System.currentTimeMillis())} instead.
*/
@Deprecated
public static Timestamp getCurrentTime() {
return Timestamps.fromMillis(System.currentTimeMillis());
}
/**
* Get the epoch.
*
* @deprecated Use {@code Timestamps.fromMillis(0)} instead.
*/
@Deprecated
public static Timestamp getEpoch() {
return Timestamp.getDefaultInstance();
}
/**
* Calculate the difference between two timestamps.
*
* @deprecated Use {@link Timestamps#between} instead.
*/
@Deprecated
public static Duration distance(Timestamp from, Timestamp to) {
return Timestamps.between(from, to);
}
/**
* Add a duration to a timestamp.
*
* @deprecated Use {@link Timestamps#add} instead.
*/
@Deprecated
public static Timestamp add(Timestamp start, Duration length) {
return Timestamps.add(start, length);
}
/**
* Subtract a duration from a timestamp.
*
* @deprecated Use {@link Timestamps#subtract} instead.
*/
@Deprecated
public static Timestamp subtract(Timestamp start, Duration length) {
return Timestamps.subtract(start, length);
}
/**
* Add two durations.
*
* @deprecated Use {@link Durations#add} instead.
*/
@Deprecated
public static Duration add(Duration d1, Duration d2) {
return Durations.add(d1, d2);
}
/**
* Subtract a duration from another.
*
* @deprecated Use {@link Durations#subtract} instead.
*/
@Deprecated
public static Duration subtract(Duration d1, Duration d2) {
return Durations.subtract(d1, d2);
}
// Multiplications and divisions.
// TODO(kak): Delete this.
public static Duration multiply(Duration duration, double times) {
double result = duration.getSeconds() * times + duration.getNanos() * times / 1000000000.0;
if (result < Long.MIN_VALUE || result > Long.MAX_VALUE) {
throw new IllegalArgumentException("Result is out of valid range.");
}
long seconds = (long) result;
int nanos = (int) ((result - seconds) * 1000000000);
return normalizedDuration(seconds, nanos);
}
// TODO(kak): Delete this.
public static Duration divide(Duration duration, double value) {
return multiply(duration, 1.0 / value);
}
// TODO(kak): Delete this.
public static Duration multiply(Duration duration, long times) {
return createDurationFromBigInteger(toBigInteger(duration).multiply(toBigInteger(times)));
}
// TODO(kak): Delete this.
public static Duration divide(Duration duration, long times) {
return createDurationFromBigInteger(toBigInteger(duration).divide(toBigInteger(times)));
}
// TODO(kak): Delete this.
public static long divide(Duration d1, Duration d2) {
return toBigInteger(d1).divide(toBigInteger(d2)).longValue();
}
// TODO(kak): Delete this.
public static Duration remainder(Duration d1, Duration d2) {
return createDurationFromBigInteger(toBigInteger(d1).remainder(toBigInteger(d2)));
}
private static final BigInteger NANOS_PER_SECOND_BIG_INTEGER =
new BigInteger(String.valueOf(NANOS_PER_SECOND));
private static BigInteger toBigInteger(Duration duration) {
return toBigInteger(duration.getSeconds())
.multiply(NANOS_PER_SECOND_BIG_INTEGER)
.add(toBigInteger(duration.getNanos()));
}
private static BigInteger toBigInteger(long value) {
return new BigInteger(String.valueOf(value));
}
private static Duration createDurationFromBigInteger(BigInteger value) {
long seconds = value.divide(new BigInteger(String.valueOf(NANOS_PER_SECOND))).longValue();
int nanos = value.remainder(new BigInteger(String.valueOf(NANOS_PER_SECOND))).intValue();
return normalizedDuration(seconds, nanos);
}
private static Duration normalizedDuration(long seconds, int nanos) {
if (nanos <= -NANOS_PER_SECOND || nanos >= NANOS_PER_SECOND) {
seconds += nanos / NANOS_PER_SECOND;
nanos %= NANOS_PER_SECOND;
}
if (seconds > 0 && nanos < 0) {
nanos += NANOS_PER_SECOND;
seconds -= 1;
}
if (seconds < 0 && nanos > 0) {
nanos -= NANOS_PER_SECOND;
seconds += 1;
}
if (seconds < DURATION_SECONDS_MIN || seconds > DURATION_SECONDS_MAX) {
throw new IllegalArgumentException("Duration is out of valid range.");
}
return Duration.newBuilder().setSeconds(seconds).setNanos(nanos).build();
}
}