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make/src/classes/build/tools/tzdb/ZoneRules.java

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   1 /*
   2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 215             int store = (int) ((epochSec + 4575744000L) / 900);
 216             out.writeByte((store >>> 16) & 255);
 217             out.writeByte((store >>> 8) & 255);
 218             out.writeByte(store & 255);
 219         } else {
 220             out.writeByte(255);
 221             out.writeLong(epochSec);
 222         }
 223     }
 224 
 225     /**
 226      * Writes the state of the transition rule to the stream.
 227      *
 228      * @param rule  the transition rule, not null
 229      * @param out  the output stream, not null
 230      * @throws IOException if an error occurs
 231      */
 232     static void writeRule(ZoneOffsetTransitionRule rule, DataOutput out) throws IOException {
 233         int month = rule.getMonth().getValue();
 234         byte dom = (byte)rule.getDayOfMonthIndicator();
 235         int dow = rule.getDayOfWeek().getValue();
 236         LocalTime time = rule.getLocalTime();
 237         boolean timeEndOfDay = rule.isMidnightEndOfDay();
 238         TimeDefinition timeDefinition = rule.getTimeDefinition();
 239         ZoneOffset standardOffset = rule.getStandardOffset();
 240         ZoneOffset offsetBefore = rule.getOffsetBefore();
 241         ZoneOffset offsetAfter = rule.getOffsetAfter();
 242 
 243         int timeSecs = (timeEndOfDay ? 86400 : time.toSecondOfDay());
 244         int stdOffset = standardOffset.getTotalSeconds();
 245         int beforeDiff = offsetBefore.getTotalSeconds() - stdOffset;
 246         int afterDiff = offsetAfter.getTotalSeconds() - stdOffset;
 247         int timeByte = (timeSecs % 3600 == 0 ? (timeEndOfDay ? 24 : time.getHour()) : 31);
 248         int stdOffsetByte = (stdOffset % 900 == 0 ? stdOffset / 900 + 128 : 255);
 249         int beforeByte = (beforeDiff == 0 || beforeDiff == 1800 || beforeDiff == 3600 ? beforeDiff / 1800 : 3);
 250         int afterByte = (afterDiff == 0 || afterDiff == 1800 || afterDiff == 3600 ? afterDiff / 1800 : 3);
 251         int dowByte = (dow == -1 ? 0 : dow);
 252         int b = (month << 28) +                     // 4 bytes
 253                 ((dom + 32) << 22) +                // 6 bytes
 254                 (dowByte << 19) +                   // 3 bytes
 255                 (timeByte << 14) +                  // 5 bytes


   1 /*
   2  * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 215             int store = (int) ((epochSec + 4575744000L) / 900);
 216             out.writeByte((store >>> 16) & 255);
 217             out.writeByte((store >>> 8) & 255);
 218             out.writeByte(store & 255);
 219         } else {
 220             out.writeByte(255);
 221             out.writeLong(epochSec);
 222         }
 223     }
 224 
 225     /**
 226      * Writes the state of the transition rule to the stream.
 227      *
 228      * @param rule  the transition rule, not null
 229      * @param out  the output stream, not null
 230      * @throws IOException if an error occurs
 231      */
 232     static void writeRule(ZoneOffsetTransitionRule rule, DataOutput out) throws IOException {
 233         int month = rule.getMonth().getValue();
 234         byte dom = (byte)rule.getDayOfMonthIndicator();
 235         int dow = (rule.getDayOfWeek() == null ? -1 : rule.getDayOfWeek().getValue());
 236         LocalTime time = rule.getLocalTime();
 237         boolean timeEndOfDay = rule.isMidnightEndOfDay();
 238         TimeDefinition timeDefinition = rule.getTimeDefinition();
 239         ZoneOffset standardOffset = rule.getStandardOffset();
 240         ZoneOffset offsetBefore = rule.getOffsetBefore();
 241         ZoneOffset offsetAfter = rule.getOffsetAfter();
 242 
 243         int timeSecs = (timeEndOfDay ? 86400 : time.toSecondOfDay());
 244         int stdOffset = standardOffset.getTotalSeconds();
 245         int beforeDiff = offsetBefore.getTotalSeconds() - stdOffset;
 246         int afterDiff = offsetAfter.getTotalSeconds() - stdOffset;
 247         int timeByte = (timeSecs % 3600 == 0 ? (timeEndOfDay ? 24 : time.getHour()) : 31);
 248         int stdOffsetByte = (stdOffset % 900 == 0 ? stdOffset / 900 + 128 : 255);
 249         int beforeByte = (beforeDiff == 0 || beforeDiff == 1800 || beforeDiff == 3600 ? beforeDiff / 1800 : 3);
 250         int afterByte = (afterDiff == 0 || afterDiff == 1800 || afterDiff == 3600 ? afterDiff / 1800 : 3);
 251         int dowByte = (dow == -1 ? 0 : dow);
 252         int b = (month << 28) +                     // 4 bytes
 253                 ((dom + 32) << 22) +                // 6 bytes
 254                 (dowByte << 19) +                   // 3 bytes
 255                 (timeByte << 14) +                  // 5 bytes


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