author | ddmitriev |
Wed, 21 Sep 2016 16:46:13 +0300 | |
changeset 41292 | 08bd6740b8e3 |
parent 31096 | a3a697c1edd5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* - Neither the name of Oracle nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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// Converting between #javascript Date and #java8 LocalDateTime with #nashorn |
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// JavaScript Date with current time |
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var d = new Date(); |
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print(d); |
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// Java 8 java.time classes used |
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var Instant = java.time.Instant; |
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var LocalDateTime = java.time.LocalDateTime; |
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var ZoneId = java.time.ZoneId; |
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// Date.prototype.getTime |
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// getTime() method returns the numeric value corresponding to the time |
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// for the specified date according to universal time. The value returned |
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// by the getTime() method is the number of milliseconds since 1 January 1970 00:00:00 UTC. |
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// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime |
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// Java Instant.ofEpochMilli to convert time in milliseconds to Instant object |
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// https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html#ofEpochMilli-long- |
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var instant = Instant.ofEpochMilli(d.getTime()); |
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// Instant to LocalDateTime using LocalDateTime.ofInstant |
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// https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html#ofInstant-java.time.Instant-java.time.ZoneId- |
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var ldt = LocalDateTime.ofInstant(instant, ZoneId.systemDefault()); |
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print(ldt); |
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// converting a LocalDateTime to JavaScript Date |
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// convert LocalDateTime to Instant first |
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// https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html#atZone-java.time.ZoneId- |
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var instant = ldt.atZone(ZoneId.systemDefault()).toInstant(); |
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// instant to to epoch milliseconds |
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// https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html#toEpochMilli-- |
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// and then to JavaScript Date from time in milliseconds |
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// https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date |
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var d1 = new Date(instant.toEpochMilli()); |
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print(d1); |