1 /*

     1 /*

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     7  * published by the Free Software Foundation.  Oracle designates this

   477     /**

   477     /**

   478      * Implementation of a clock that always returns the latest time from

   478      * Implementation of a clock that always returns the latest time from

   479      * {@link System#currentTimeMillis()}.

   479      * {@link System#currentTimeMillis()}.

   480      */

   480      */

   481     static final class SystemClock extends Clock implements Serializable {

   481     static final class SystemClock extends Clock implements Serializable {

   482         private static final long serialVersionUID = 6740630888130243051L;

   483         private static final long serialVersionUID = 6740630888130243051L;

   483         private static final long OFFSET_SEED =

   484         private static final long OFFSET_SEED =

   484                 System.currentTimeMillis()/1000 - 1024; // initial offest

   485                 System.currentTimeMillis()/1000 - 1024; // initial offest

   485         static final SystemClock UTC = new SystemClock(ZoneOffset.UTC);

   486         static final SystemClock UTC = new SystemClock(ZoneOffset.UTC);

   486 

   487 

   570         }

   571         }

   571         @Override

   572         @Override

   572         public String toString() {

   573         public String toString() {

   573             return "SystemClock[" + zone + "]";

   574             return "SystemClock[" + zone + "]";

   574         }

   575         }

   575         private void readObject(ObjectInputStream is)

   577         private void readObject(ObjectInputStream is)

   576                 throws IOException, ClassNotFoundException {

   578                 throws IOException, ClassNotFoundException {

   577             // ensure that offset is initialized

   579             // ensure that offset is initialized

   578             is.defaultReadObject();

   580             is.defaultReadObject();

   579             offset = OFFSET_SEED;

   581             offset = OFFSET_SEED;

   584     /**

   586     /**

   585      * Implementation of a clock that always returns the same instant.

   587      * Implementation of a clock that always returns the same instant.

   586      * This is typically used for testing.

   588      * This is typically used for testing.

   587      */

   589      */

   588     static final class FixedClock extends Clock implements Serializable {

   590     static final class FixedClock extends Clock implements Serializable {

   589         private static final long serialVersionUID = 7430389292664866958L;

   592         private static final long serialVersionUID = 7430389292664866958L;

   590         private final Instant instant;

   593         private final Instant instant;

   591         private final ZoneId zone;

   594         private final ZoneId zone;

   592 

   595 

   593         FixedClock(Instant fixedInstant, ZoneId zone) {

   596         FixedClock(Instant fixedInstant, ZoneId zone) {

   634     //-----------------------------------------------------------------------

   637     //-----------------------------------------------------------------------

   635     /**

   638     /**

   636      * Implementation of a clock that adds an offset to an underlying clock.

   639      * Implementation of a clock that adds an offset to an underlying clock.

   637      */

   640      */

   638     static final class OffsetClock extends Clock implements Serializable {

   641     static final class OffsetClock extends Clock implements Serializable {

   639         private static final long serialVersionUID = 2007484719125426256L;

   643         private static final long serialVersionUID = 2007484719125426256L;

   640         private final Clock baseClock;

   644         private final Clock baseClock;

   641         private final Duration offset;

   645         private final Duration offset;

   642 

   646 

   643         OffsetClock(Clock baseClock, Duration offset) {

   647         OffsetClock(Clock baseClock, Duration offset) {

   684     //-----------------------------------------------------------------------

   688     //-----------------------------------------------------------------------

   685     /**

   689     /**

   686      * Implementation of a clock that adds an offset to an underlying clock.

   690      * Implementation of a clock that adds an offset to an underlying clock.

   687      */

   691      */

   688     static final class TickClock extends Clock implements Serializable {

   692     static final class TickClock extends Clock implements Serializable {

   689         private static final long serialVersionUID = 6504659149906368850L;

   694         private static final long serialVersionUID = 6504659149906368850L;

   690         private final Clock baseClock;

   695         private final Clock baseClock;

   691         private final long tickNanos;

   696         private final long tickNanos;

   692 

   697 

   693         TickClock(Clock baseClock, long tickNanos) {

   698         TickClock(Clock baseClock, long tickNanos) {