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Remove unused threeten code
This commit is contained in:
Alexey Andreev
parent
5e37e2a45b
commit
0bcd3101ad
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@ -1,796 +0,0 @@
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/*
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* Copyright 2020 Alexey Andreev.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos
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*
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* 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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* 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 notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of JSR-310 nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR 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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package org.threeten.bp.zone;
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import static org.threeten.bp.temporal.ChronoField.YEAR;
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import static org.threeten.bp.temporal.TemporalAdjusters.nextOrSame;
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import static org.threeten.bp.temporal.TemporalAdjusters.previousOrSame;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import org.threeten.bp.DateTimeException;
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import org.threeten.bp.DayOfWeek;
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import org.threeten.bp.LocalDate;
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import org.threeten.bp.LocalDateTime;
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import org.threeten.bp.LocalTime;
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import org.threeten.bp.Month;
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import org.threeten.bp.Year;
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import org.threeten.bp.ZoneOffset;
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import org.threeten.bp.chrono.IsoChronology;
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import org.threeten.bp.zone.ZoneOffsetTransitionRule.TimeDefinition;
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/**
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* A mutable builder used to create all the rules for a historic time-zone.
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* <p>
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* The rules of a time-zone describe how the offset changes over time.
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* The rules are created by building windows on the time-line within which
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* the different rules apply. The rules may be one of two kinds:
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* <p><ul>
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* <li>Fixed savings - A single fixed amount of savings from the standard offset will apply.</li>
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* <li>Rules - A set of one or more rules describe how daylight savings changes during the window.</li>
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* </ul><p>
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*
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* <h3>Specification for implementors</h3>
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* This class is a mutable builder used to create zone instances.
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* It must only be used from a single thread.
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* The created instances are immutable and thread-safe.
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*/
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class ZoneRulesBuilder {
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/**
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* The list of windows.
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*/
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private List<TZWindow> windowList = new ArrayList<ZoneRulesBuilder.TZWindow>();
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/**
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* A map for deduplicating the output.
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*/
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private Map<Object, Object> deduplicateMap;
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//-----------------------------------------------------------------------
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/**
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* Constructs an instance of the builder that can be used to create zone rules.
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* <p>
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* The builder is used by adding one or more windows representing portions
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* of the time-line. The standard offset from UTC/Greenwich will be constant
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* within a window, although two adjacent windows can have the same standard offset.
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* <p>
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* Within each window, there can either be a
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* {@link #setFixedSavingsToWindow fixed savings amount} or a
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* {@link #addRuleToWindow list of rules}.
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*/
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public ZoneRulesBuilder() {
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}
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//-----------------------------------------------------------------------
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/**
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* Adds a window to the builder that can be used to filter a set of rules.
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* <p>
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* This method defines and adds a window to the zone where the standard offset is specified.
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* The window limits the effect of subsequent additions of transition rules
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* or fixed savings. If neither rules or fixed savings are added to the window
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* then the window will default to no savings.
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* <p>
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* Each window must be added sequentially, as the start instant of the window
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* is derived from the until instant of the previous window.
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*
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* @param standardOffset the standard offset, not null
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* @param until the date-time that the offset applies until, not null
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* @param untilDefinition the time type for the until date-time, not null
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* @return this, for chaining
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* @throws IllegalStateException if the window order is invalid
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*/
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public ZoneRulesBuilder addWindow(
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ZoneOffset standardOffset,
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LocalDateTime until,
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TimeDefinition untilDefinition) {
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Objects.requireNonNull(standardOffset, "standardOffset");
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Objects.requireNonNull(until, "until");
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Objects.requireNonNull(untilDefinition, "untilDefinition");
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TZWindow window = new TZWindow(standardOffset, until, untilDefinition);
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if (windowList.size() > 0) {
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TZWindow previous = windowList.get(windowList.size() - 1);
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window.validateWindowOrder(previous);
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}
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windowList.add(window);
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return this;
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}
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/**
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* Adds a window that applies until the end of time to the builder that can be
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* used to filter a set of rules.
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* <p>
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* This method defines and adds a window to the zone where the standard offset is specified.
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* The window limits the effect of subsequent additions of transition rules
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* or fixed savings. If neither rules or fixed savings are added to the window
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* then the window will default to no savings.
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* <p>
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* This must be added after all other windows.
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* No more windows can be added after this one.
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*
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* @param standardOffset the standard offset, not null
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* @return this, for chaining
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* @throws IllegalStateException if a forever window has already been added
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*/
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public ZoneRulesBuilder addWindowForever(ZoneOffset standardOffset) {
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return addWindow(standardOffset, LocalDateTime.MAX, TimeDefinition.WALL);
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}
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//-----------------------------------------------------------------------
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/**
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* Sets the previously added window to have fixed savings.
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* <p>
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* Setting a window to have fixed savings simply means that a single daylight
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* savings amount applies throughout the window. The window could be small,
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* such as a single summer, or large, such as a multi-year daylight savings.
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* <p>
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* A window can either have fixed savings or rules but not both.
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*
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* @param fixedSavingAmountSecs the amount of saving to use for the whole window, not null
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* @return this, for chaining
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* @throws IllegalStateException if no window has yet been added
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* @throws IllegalStateException if the window already has rules
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*/
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public ZoneRulesBuilder setFixedSavingsToWindow(int fixedSavingAmountSecs) {
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if (windowList.isEmpty()) {
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throw new IllegalStateException("Must add a window before setting the fixed savings");
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}
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TZWindow window = windowList.get(windowList.size() - 1);
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window.setFixedSavings(fixedSavingAmountSecs);
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return this;
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}
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//-----------------------------------------------------------------------
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/**
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* Adds a single transition rule to the current window.
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* <p>
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* This adds a rule such that the offset, expressed as a daylight savings amount,
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* changes at the specified date-time.
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*
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* @param transitionDateTime the date-time that the transition occurs as defined by timeDefintion, not null
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* @param timeDefinition the definition of how to convert local to actual time, not null
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* @param savingAmountSecs the amount of saving from the standard offset after the transition in seconds
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* @return this, for chaining
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* @throws IllegalStateException if no window has yet been added
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* @throws IllegalStateException if the window already has fixed savings
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* @throws IllegalStateException if the window has reached the maximum capacity of 2000 rules
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*/
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public ZoneRulesBuilder addRuleToWindow(
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LocalDateTime transitionDateTime,
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TimeDefinition timeDefinition,
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int savingAmountSecs) {
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Objects.requireNonNull(transitionDateTime, "transitionDateTime");
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return addRuleToWindow(
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transitionDateTime.getYear(), transitionDateTime.getYear(),
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transitionDateTime.getMonth(), transitionDateTime.getDayOfMonth(),
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null, transitionDateTime.toLocalTime(), false, timeDefinition, savingAmountSecs);
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}
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/**
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* Adds a single transition rule to the current window.
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* <p>
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* This adds a rule such that the offset, expressed as a daylight savings amount,
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* changes at the specified date-time.
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*
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* @param year the year of the transition, from MIN_VALUE to MAX_VALUE
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* @param month the month of the transition, not null
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* @param dayOfMonthIndicator the day-of-month of the transition, adjusted by dayOfWeek,
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* from 1 to 31 adjusted later, or -1 to -28 adjusted earlier from the last day of the month
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* @param time the time that the transition occurs as defined by timeDefintion, not null
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* @param timeEndOfDay whether midnight is at the end of day
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* @param timeDefinition the definition of how to convert local to actual time, not null
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* @param savingAmountSecs the amount of saving from the standard offset after the transition in seconds
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* @return this, for chaining
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* @throws DateTimeException if a date-time field is out of range
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* @throws IllegalStateException if no window has yet been added
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* @throws IllegalStateException if the window already has fixed savings
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* @throws IllegalStateException if the window has reached the maximum capacity of 2000 rules
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*/
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public ZoneRulesBuilder addRuleToWindow(
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int year,
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Month month,
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int dayOfMonthIndicator,
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LocalTime time,
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boolean timeEndOfDay,
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TimeDefinition timeDefinition,
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int savingAmountSecs) {
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return addRuleToWindow(year, year, month, dayOfMonthIndicator, null, time, timeEndOfDay,
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timeDefinition, savingAmountSecs);
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}
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/**
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* Adds a multi-year transition rule to the current window.
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* <p>
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* This adds a rule such that the offset, expressed as a daylight savings amount,
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* changes at the specified date-time for each year in the range.
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*
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* @param startYear the start year of the rule, from MIN_VALUE to MAX_VALUE
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* @param endYear the end year of the rule, from MIN_VALUE to MAX_VALUE
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* @param month the month of the transition, not null
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* @param dayOfMonthIndicator the day-of-month of the transition, adjusted by dayOfWeek,
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* from 1 to 31 adjusted later, or -1 to -28 adjusted earlier from the last day of the month
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* @param dayOfWeek the day-of-week to adjust to, null if day-of-month should not be adjusted
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* @param time the time that the transition occurs as defined by timeDefintion, not null
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* @param timeEndOfDay whether midnight is at the end of day
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* @param timeDefinition the definition of how to convert local to actual time, not null
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* @param savingAmountSecs the amount of saving from the standard offset after the transition in seconds
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* @return this, for chaining
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* @throws DateTimeException if a date-time field is out of range
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* @throws IllegalArgumentException if the day of month indicator is invalid
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* @throws IllegalArgumentException if the end of day midnight flag does not match the time
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* @throws IllegalStateException if no window has yet been added
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* @throws IllegalStateException if the window already has fixed savings
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* @throws IllegalStateException if the window has reached the maximum capacity of 2000 rules
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*/
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public ZoneRulesBuilder addRuleToWindow(
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int startYear,
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int endYear,
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Month month,
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int dayOfMonthIndicator,
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DayOfWeek dayOfWeek,
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LocalTime time,
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boolean timeEndOfDay,
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TimeDefinition timeDefinition,
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int savingAmountSecs) {
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Objects.requireNonNull(month, "month");
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Objects.requireNonNull(time, "time");
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Objects.requireNonNull(timeDefinition, "timeDefinition");
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YEAR.checkValidValue(startYear);
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YEAR.checkValidValue(endYear);
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if (dayOfMonthIndicator < -28 || dayOfMonthIndicator > 31 || dayOfMonthIndicator == 0) {
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throw new IllegalArgumentException("Day of month indicator must be between -28 and 31 "
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+ "inclusive excluding zero");
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}
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if (timeEndOfDay && !time.equals(LocalTime.MIDNIGHT)) {
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throw new IllegalArgumentException("Time must be midnight when end of day flag is true");
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}
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if (windowList.isEmpty()) {
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throw new IllegalStateException("Must add a window before adding a rule");
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}
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TZWindow window = windowList.get(windowList.size() - 1);
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window.addRule(startYear, endYear, month, dayOfMonthIndicator, dayOfWeek, time, timeEndOfDay ? 1 : 0,
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timeDefinition, savingAmountSecs);
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return this;
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}
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ZoneRulesBuilder addRuleToWindow(
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int startYear,
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int endYear,
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Month month,
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int dayOfMonthIndicator,
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DayOfWeek dayOfWeek,
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LocalTime time,
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int adjustDays,
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TimeDefinition timeDefinition,
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int savingAmountSecs) {
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Objects.requireNonNull(month, "month");
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Objects.requireNonNull(timeDefinition, "timeDefinition");
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YEAR.checkValidValue(startYear);
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YEAR.checkValidValue(endYear);
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if (dayOfMonthIndicator < -28 || dayOfMonthIndicator > 31 || dayOfMonthIndicator == 0) {
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throw new IllegalArgumentException("Day of month indicator must be between -28 and 31 "
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+ "inclusive excluding zero");
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}
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if (windowList.isEmpty()) {
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throw new IllegalStateException("Must add a window before adding a rule");
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}
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TZWindow window = windowList.get(windowList.size() - 1);
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window.addRule(startYear, endYear, month, dayOfMonthIndicator, dayOfWeek, time, adjustDays,
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timeDefinition, savingAmountSecs);
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return this;
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}
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//-----------------------------------------------------------------------
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/**
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* Completes the build converting the builder to a set of time-zone rules.
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* <p>
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* Calling this method alters the state of the builder.
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* Further rules should not be added to this builder once this method is called.
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*
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* @param zoneId the time-zone ID, not null
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* @return the zone rules, not null
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* @throws IllegalStateException if no windows have been added
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* @throws IllegalStateException if there is only one rule defined as being forever for any given window
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*/
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public ZoneRules toRules(String zoneId) {
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return toRules(zoneId, new HashMap<Object, Object>());
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}
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|
|
||||||
/**
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|
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* Completes the build converting the builder to a set of time-zone rules.
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|
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* <p>
|
|
||||||
* Calling this method alters the state of the builder.
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|
||||||
* Further rules should not be added to this builder once this method is called.
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*
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* @param zoneId the time-zone ID, not null
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* @param deduplicateMap a map for deduplicating the values, not null
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|
||||||
* @return the zone rules, not null
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|
||||||
* @throws IllegalStateException if no windows have been added
|
|
||||||
* @throws IllegalStateException if there is only one rule defined as being forever for any given window
|
|
||||||
*/
|
|
||||||
ZoneRules toRules(String zoneId, Map<Object, Object> deduplicateMap) {
|
|
||||||
Objects.requireNonNull(zoneId, "zoneId");
|
|
||||||
this.deduplicateMap = deduplicateMap;
|
|
||||||
if (windowList.isEmpty()) {
|
|
||||||
throw new IllegalStateException("No windows have been added to the builder");
|
|
||||||
}
|
|
||||||
|
|
||||||
final List<ZoneOffsetTransition> standardTransitionList = new ArrayList<ZoneOffsetTransition>(4);
|
|
||||||
final List<ZoneOffsetTransition> transitionList = new ArrayList<ZoneOffsetTransition>(256);
|
|
||||||
final List<ZoneOffsetTransitionRule> lastTransitionRuleList = new ArrayList<ZoneOffsetTransitionRule>(2);
|
|
||||||
|
|
||||||
// initialize the standard offset calculation
|
|
||||||
final TZWindow firstWindow = windowList.get(0);
|
|
||||||
ZoneOffset loopStandardOffset = firstWindow.standardOffset;
|
|
||||||
int loopSavings = 0;
|
|
||||||
if (firstWindow.fixedSavingAmountSecs != null) {
|
|
||||||
loopSavings = firstWindow.fixedSavingAmountSecs;
|
|
||||||
}
|
|
||||||
final ZoneOffset firstWallOffset = deduplicate(ZoneOffset.ofTotalSeconds(
|
|
||||||
loopStandardOffset.getTotalSeconds() + loopSavings));
|
|
||||||
LocalDateTime loopWindowStart = deduplicate(LocalDateTime.of(Year.MIN_VALUE, 1, 1, 0, 0));
|
|
||||||
ZoneOffset loopWindowOffset = firstWallOffset;
|
|
||||||
|
|
||||||
// build the windows and rules to interesting data
|
|
||||||
for (TZWindow window : windowList) {
|
|
||||||
// tidy the state
|
|
||||||
window.tidy(loopWindowStart.getYear());
|
|
||||||
|
|
||||||
// calculate effective savings at the start of the window
|
|
||||||
Integer effectiveSavings = window.fixedSavingAmountSecs;
|
|
||||||
if (effectiveSavings == null) {
|
|
||||||
// apply rules from this window together with the standard offset and
|
|
||||||
// savings from the last window to find the savings amount applicable
|
|
||||||
// at start of this window
|
|
||||||
effectiveSavings = 0;
|
|
||||||
for (TZRule rule : window.ruleList) {
|
|
||||||
ZoneOffsetTransition trans = rule.toTransition(loopStandardOffset, loopSavings);
|
|
||||||
if (trans.toEpochSecond() > loopWindowStart.toEpochSecond(loopWindowOffset)) {
|
|
||||||
// previous savings amount found, which could be the savings amount at
|
|
||||||
// the instant that the window starts (hence isAfter)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
effectiveSavings = rule.savingAmountSecs;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// check if standard offset changed, and update it
|
|
||||||
if (!loopStandardOffset.equals(window.standardOffset)) {
|
|
||||||
standardTransitionList.add(deduplicate(
|
|
||||||
new ZoneOffsetTransition(
|
|
||||||
LocalDateTime.ofEpochSecond(loopWindowStart.toEpochSecond(loopWindowOffset), 0,
|
|
||||||
loopStandardOffset),
|
|
||||||
loopStandardOffset, window.standardOffset)));
|
|
||||||
loopStandardOffset = deduplicate(window.standardOffset);
|
|
||||||
}
|
|
||||||
|
|
||||||
// check if the start of the window represents a transition
|
|
||||||
ZoneOffset effectiveWallOffset = deduplicate(ZoneOffset.ofTotalSeconds(
|
|
||||||
loopStandardOffset.getTotalSeconds() + effectiveSavings));
|
|
||||||
if (!loopWindowOffset.equals(effectiveWallOffset)) {
|
|
||||||
ZoneOffsetTransition trans = deduplicate(
|
|
||||||
new ZoneOffsetTransition(loopWindowStart, loopWindowOffset, effectiveWallOffset));
|
|
||||||
transitionList.add(trans);
|
|
||||||
}
|
|
||||||
loopSavings = effectiveSavings;
|
|
||||||
|
|
||||||
// apply rules within the window
|
|
||||||
for (TZRule rule : window.ruleList) {
|
|
||||||
ZoneOffsetTransition trans = deduplicate(rule.toTransition(loopStandardOffset, loopSavings));
|
|
||||||
if (trans.toEpochSecond() >= loopWindowStart.toEpochSecond(loopWindowOffset)
|
|
||||||
&& trans.toEpochSecond() < window.createDateTimeEpochSecond(loopSavings)
|
|
||||||
&& !trans.getOffsetBefore().equals(trans.getOffsetAfter())) {
|
|
||||||
transitionList.add(trans);
|
|
||||||
loopSavings = rule.savingAmountSecs;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// calculate last rules
|
|
||||||
for (TZRule lastRule : window.lastRuleList) {
|
|
||||||
ZoneOffsetTransitionRule transitionRule = deduplicate(lastRule.toTransitionRule(loopStandardOffset,
|
|
||||||
loopSavings));
|
|
||||||
lastTransitionRuleList.add(transitionRule);
|
|
||||||
loopSavings = lastRule.savingAmountSecs;
|
|
||||||
}
|
|
||||||
|
|
||||||
// finally we can calculate the true end of the window, passing it to the next window
|
|
||||||
loopWindowOffset = deduplicate(window.createWallOffset(loopSavings));
|
|
||||||
loopWindowStart = deduplicate(LocalDateTime.ofEpochSecond(
|
|
||||||
window.createDateTimeEpochSecond(loopSavings), 0, loopWindowOffset));
|
|
||||||
}
|
|
||||||
return new StandardZoneRules(
|
|
||||||
firstWindow.standardOffset, firstWallOffset, standardTransitionList,
|
|
||||||
transitionList, lastTransitionRuleList);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Deduplicates an object instance.
|
|
||||||
*
|
|
||||||
* @param <T> the generic type
|
|
||||||
* @param object the object to deduplicate
|
|
||||||
* @return the deduplicated object
|
|
||||||
*/
|
|
||||||
@SuppressWarnings("unchecked")
|
|
||||||
<T> T deduplicate(T object) {
|
|
||||||
if (!deduplicateMap.containsKey(object)) {
|
|
||||||
deduplicateMap.put(object, object);
|
|
||||||
}
|
|
||||||
return (T) deduplicateMap.get(object);
|
|
||||||
}
|
|
||||||
|
|
||||||
//-----------------------------------------------------------------------
|
|
||||||
/**
|
|
||||||
* A definition of a window in the time-line.
|
|
||||||
* The window will have one standard offset and will either have a
|
|
||||||
* fixed DST savings or a set of rules.
|
|
||||||
*/
|
|
||||||
class TZWindow {
|
|
||||||
/** The standard offset during the window, not null. */
|
|
||||||
private final ZoneOffset standardOffset;
|
|
||||||
/** The end local time, not null. */
|
|
||||||
private final LocalDateTime windowEnd;
|
|
||||||
/** The type of the end time, not null. */
|
|
||||||
private final TimeDefinition timeDefinition;
|
|
||||||
|
|
||||||
/** The fixed amount of the saving to be applied during this window. */
|
|
||||||
private Integer fixedSavingAmountSecs;
|
|
||||||
/** The rules for the current window. */
|
|
||||||
private List<TZRule> ruleList = new ArrayList<TZRule>();
|
|
||||||
/** The latest year that the last year starts at. */
|
|
||||||
private int maxLastRuleStartYear = Year.MIN_VALUE;
|
|
||||||
/** The last rules. */
|
|
||||||
private List<TZRule> lastRuleList = new ArrayList<TZRule>();
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Constructor.
|
|
||||||
*
|
|
||||||
* @param standardOffset the standard offset applicable during the window, not null
|
|
||||||
* @param windowEnd the end of the window, relative to the time definition, null if forever
|
|
||||||
* @param timeDefinition the time definition for calculating the true end, not null
|
|
||||||
*/
|
|
||||||
TZWindow(
|
|
||||||
ZoneOffset standardOffset,
|
|
||||||
LocalDateTime windowEnd,
|
|
||||||
TimeDefinition timeDefinition) {
|
|
||||||
super();
|
|
||||||
this.windowEnd = windowEnd;
|
|
||||||
this.timeDefinition = timeDefinition;
|
|
||||||
this.standardOffset = standardOffset;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Sets the fixed savings amount for the window.
|
|
||||||
*
|
|
||||||
* @param fixedSavingAmount the amount of daylight saving to apply throughout the window, may be null
|
|
||||||
* @throws IllegalStateException if the window already has rules
|
|
||||||
*/
|
|
||||||
void setFixedSavings(int fixedSavingAmount) {
|
|
||||||
if (ruleList.size() > 0 || lastRuleList.size() > 0) {
|
|
||||||
throw new IllegalStateException("Window has DST rules, so cannot have fixed savings");
|
|
||||||
}
|
|
||||||
this.fixedSavingAmountSecs = fixedSavingAmount;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Adds a rule to the current window.
|
|
||||||
*
|
|
||||||
* @param startYear the start year of the rule, from MIN_VALUE to MAX_VALUE
|
|
||||||
* @param endYear the end year of the rule, from MIN_VALUE to MAX_VALUE
|
|
||||||
* @param month the month of the transition, not null
|
|
||||||
* @param dayOfMonthIndicator the day-of-month of the transition, adjusted by dayOfWeek,
|
|
||||||
* from 1 to 31 adjusted later, or -1 to -28 adjusted earlier from the last day of the month
|
|
||||||
* @param dayOfWeek the day-of-week to adjust to, null if day-of-month should not be adjusted
|
|
||||||
* @param time the time that the transition occurs as defined by timeDefintion, not null
|
|
||||||
* @param adjustDays the time days adjustment
|
|
||||||
* @param timeDefinition the definition of how to convert local to actual time, not null
|
|
||||||
* @param savingAmountSecs the amount of saving from the standard offset in seconds
|
|
||||||
* @throws IllegalStateException if the window already has fixed savings
|
|
||||||
* @throws IllegalStateException if the window has reached the maximum capacity of 2000 rules
|
|
||||||
*/
|
|
||||||
void addRule(
|
|
||||||
int startYear,
|
|
||||||
int endYear,
|
|
||||||
Month month,
|
|
||||||
int dayOfMonthIndicator,
|
|
||||||
DayOfWeek dayOfWeek,
|
|
||||||
LocalTime time,
|
|
||||||
int adjustDays,
|
|
||||||
TimeDefinition timeDefinition,
|
|
||||||
int savingAmountSecs) {
|
|
||||||
|
|
||||||
if (fixedSavingAmountSecs != null) {
|
|
||||||
throw new IllegalStateException("Window has a fixed DST saving, so cannot have DST rules");
|
|
||||||
}
|
|
||||||
if (ruleList.size() >= 2000) {
|
|
||||||
throw new IllegalStateException("Window has reached the maximum number of allowed rules");
|
|
||||||
}
|
|
||||||
boolean lastRule = false;
|
|
||||||
if (endYear == Year.MAX_VALUE) {
|
|
||||||
lastRule = true;
|
|
||||||
endYear = startYear;
|
|
||||||
}
|
|
||||||
int year = startYear;
|
|
||||||
while (year <= endYear) {
|
|
||||||
TZRule rule = new TZRule(year, month, dayOfMonthIndicator, dayOfWeek, time, adjustDays,
|
|
||||||
timeDefinition, savingAmountSecs);
|
|
||||||
if (lastRule) {
|
|
||||||
lastRuleList.add(rule);
|
|
||||||
maxLastRuleStartYear = Math.max(startYear, maxLastRuleStartYear);
|
|
||||||
} else {
|
|
||||||
ruleList.add(rule);
|
|
||||||
}
|
|
||||||
year++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Validates that this window is after the previous one.
|
|
||||||
*
|
|
||||||
* @param previous the previous window, not null
|
|
||||||
* @throws IllegalStateException if the window order is invalid
|
|
||||||
*/
|
|
||||||
void validateWindowOrder(TZWindow previous) {
|
|
||||||
if (windowEnd.isBefore(previous.windowEnd)) {
|
|
||||||
throw new IllegalStateException("Windows must be added in date-time order: "
|
|
||||||
+ windowEnd + " < " + previous.windowEnd);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Adds rules to make the last rules all start from the same year.
|
|
||||||
* Also add one more year to avoid weird case where penultimate year has odd offset.
|
|
||||||
*
|
|
||||||
* @param windowStartYear the window start year
|
|
||||||
* @throws IllegalStateException if there is only one rule defined as being forever
|
|
||||||
*/
|
|
||||||
void tidy(int windowStartYear) {
|
|
||||||
if (lastRuleList.size() == 1) {
|
|
||||||
throw new IllegalStateException("Cannot have only one rule defined as being forever");
|
|
||||||
}
|
|
||||||
|
|
||||||
// handle last rules
|
|
||||||
if (windowEnd.equals(LocalDateTime.MAX)) {
|
|
||||||
// setup at least one real rule, which closes off other windows nicely
|
|
||||||
maxLastRuleStartYear = Math.max(maxLastRuleStartYear, windowStartYear) + 1;
|
|
||||||
for (TZRule lastRule : lastRuleList) {
|
|
||||||
addRule(lastRule.year, maxLastRuleStartYear, lastRule.month, lastRule.dayOfMonthIndicator,
|
|
||||||
lastRule.dayOfWeek, lastRule.time, lastRule.adjustDays, lastRule.timeDefinition,
|
|
||||||
lastRule.savingAmountSecs);
|
|
||||||
lastRule.year = maxLastRuleStartYear + 1;
|
|
||||||
}
|
|
||||||
if (maxLastRuleStartYear == Year.MAX_VALUE) {
|
|
||||||
lastRuleList.clear();
|
|
||||||
} else {
|
|
||||||
maxLastRuleStartYear++;
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
// convert all within the endYear limit
|
|
||||||
int endYear = windowEnd.getYear();
|
|
||||||
for (TZRule lastRule : lastRuleList) {
|
|
||||||
addRule(lastRule.year, endYear + 1, lastRule.month, lastRule.dayOfMonthIndicator,
|
|
||||||
lastRule.dayOfWeek, lastRule.time, lastRule.adjustDays, lastRule.timeDefinition,
|
|
||||||
lastRule.savingAmountSecs);
|
|
||||||
}
|
|
||||||
lastRuleList.clear();
|
|
||||||
maxLastRuleStartYear = Year.MAX_VALUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
// ensure lists are sorted
|
|
||||||
Collections.sort(ruleList);
|
|
||||||
Collections.sort(lastRuleList);
|
|
||||||
|
|
||||||
// default fixed savings to zero
|
|
||||||
if (ruleList.size() == 0 && fixedSavingAmountSecs == null) {
|
|
||||||
fixedSavingAmountSecs = 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Checks if the window is empty.
|
|
||||||
*
|
|
||||||
* @return true if the window is only a standard offset
|
|
||||||
*/
|
|
||||||
boolean isSingleWindowStandardOffset() {
|
|
||||||
return windowEnd.equals(LocalDateTime.MAX) && timeDefinition == TimeDefinition.WALL
|
|
||||||
&& fixedSavingAmountSecs == null && lastRuleList.isEmpty() && ruleList.isEmpty();
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Creates the wall offset for the local date-time at the end of the window.
|
|
||||||
*
|
|
||||||
* @param savingsSecs the amount of savings in use in seconds
|
|
||||||
* @return the created date-time epoch second in the wall offset, not null
|
|
||||||
*/
|
|
||||||
ZoneOffset createWallOffset(int savingsSecs) {
|
|
||||||
return ZoneOffset.ofTotalSeconds(standardOffset.getTotalSeconds() + savingsSecs);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Creates the offset date-time for the local date-time at the end of the window.
|
|
||||||
*
|
|
||||||
* @param savingsSecs the amount of savings in use in seconds
|
|
||||||
* @return the created date-time epoch second in the wall offset, not null
|
|
||||||
*/
|
|
||||||
long createDateTimeEpochSecond(int savingsSecs) {
|
|
||||||
ZoneOffset wallOffset = createWallOffset(savingsSecs);
|
|
||||||
LocalDateTime ldt = timeDefinition.createDateTime(windowEnd, standardOffset, wallOffset);
|
|
||||||
return ldt.toEpochSecond(wallOffset);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
//-----------------------------------------------------------------------
|
|
||||||
/**
|
|
||||||
* A definition of the way a local time can be converted to an offset time.
|
|
||||||
*/
|
|
||||||
class TZRule implements Comparable<TZRule> {
|
|
||||||
/** The year. */
|
|
||||||
private int year;
|
|
||||||
/** The month. */
|
|
||||||
private Month month;
|
|
||||||
/** The day-of-month. */
|
|
||||||
private int dayOfMonthIndicator;
|
|
||||||
/** The day-of-month. */
|
|
||||||
private DayOfWeek dayOfWeek;
|
|
||||||
/** The local time. */
|
|
||||||
private LocalTime time;
|
|
||||||
/** The local time days adjustment. */
|
|
||||||
private int adjustDays;
|
|
||||||
/** The type of the time. */
|
|
||||||
private TimeDefinition timeDefinition;
|
|
||||||
/** The amount of the saving to be applied after this point. */
|
|
||||||
private int savingAmountSecs;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Constructor.
|
|
||||||
*
|
|
||||||
* @param year the year
|
|
||||||
* @param month the month, not null
|
|
||||||
* @param dayOfMonthIndicator the day-of-month of the transition, adjusted by dayOfWeek,
|
|
||||||
* from 1 to 31 adjusted later, or -1 to -28 adjusted earlier from the last day of the month
|
|
||||||
* @param dayOfWeek the day-of-week, null if day-of-month is exact
|
|
||||||
* @param time the time, not null
|
|
||||||
* @param adjustDays the time day adjustment
|
|
||||||
* @param timeDefinition the time definition, not null
|
|
||||||
* @param savingAfterSecs the savings amount in seconds
|
|
||||||
*/
|
|
||||||
TZRule(int year, Month month, int dayOfMonthIndicator,
|
|
||||||
DayOfWeek dayOfWeek, LocalTime time, int adjustDays,
|
|
||||||
TimeDefinition timeDefinition, int savingAfterSecs) {
|
|
||||||
super();
|
|
||||||
this.year = year;
|
|
||||||
this.month = month;
|
|
||||||
this.dayOfMonthIndicator = dayOfMonthIndicator;
|
|
||||||
this.dayOfWeek = dayOfWeek;
|
|
||||||
this.time = time;
|
|
||||||
this.adjustDays = adjustDays;
|
|
||||||
this.timeDefinition = timeDefinition;
|
|
||||||
this.savingAmountSecs = savingAfterSecs;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Converts this to a transition.
|
|
||||||
*
|
|
||||||
* @param standardOffset the active standard offset, not null
|
|
||||||
* @param savingsBeforeSecs the active savings in seconds
|
|
||||||
* @return the transition, not null
|
|
||||||
*/
|
|
||||||
ZoneOffsetTransition toTransition(ZoneOffset standardOffset, int savingsBeforeSecs) {
|
|
||||||
// copy of code in ZoneOffsetTransitionRule to avoid infinite loop
|
|
||||||
LocalDate date = toLocalDate();
|
|
||||||
date = deduplicate(date);
|
|
||||||
LocalDateTime ldt = deduplicate(LocalDateTime.of(date.plusDays(adjustDays), time));
|
|
||||||
ZoneOffset wallOffset = deduplicate(ZoneOffset.ofTotalSeconds(standardOffset.getTotalSeconds()
|
|
||||||
+ savingsBeforeSecs));
|
|
||||||
LocalDateTime dt = deduplicate(timeDefinition.createDateTime(ldt, standardOffset, wallOffset));
|
|
||||||
ZoneOffset offsetAfter = deduplicate(ZoneOffset.ofTotalSeconds(standardOffset.getTotalSeconds()
|
|
||||||
+ savingAmountSecs));
|
|
||||||
return new ZoneOffsetTransition(dt, wallOffset, offsetAfter);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Converts this to a transition rule.
|
|
||||||
*
|
|
||||||
* @param standardOffset the active standard offset, not null
|
|
||||||
* @param savingsBeforeSecs the active savings before the transition in seconds
|
|
||||||
* @return the transition, not null
|
|
||||||
*/
|
|
||||||
ZoneOffsetTransitionRule toTransitionRule(ZoneOffset standardOffset, int savingsBeforeSecs) {
|
|
||||||
// optimize stored format
|
|
||||||
if (dayOfMonthIndicator < 0) {
|
|
||||||
if (month != Month.FEBRUARY) {
|
|
||||||
dayOfMonthIndicator = month.maxLength() - 6;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// build rule
|
|
||||||
ZoneOffsetTransition trans = toTransition(standardOffset, savingsBeforeSecs);
|
|
||||||
return new ZoneOffsetTransitionRule(
|
|
||||||
month, dayOfMonthIndicator, dayOfWeek, time, adjustDays, timeDefinition,
|
|
||||||
standardOffset, trans.getOffsetBefore(), trans.getOffsetAfter());
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public int compareTo(TZRule other) {
|
|
||||||
int cmp = year - other.year;
|
|
||||||
cmp = cmp == 0 ? month.compareTo(other.month) : cmp;
|
|
||||||
if (cmp == 0) {
|
|
||||||
// convert to date to handle dow/domIndicator/timeEndOfDay
|
|
||||||
LocalDate thisDate = toLocalDate();
|
|
||||||
LocalDate otherDate = other.toLocalDate();
|
|
||||||
cmp = thisDate.compareTo(otherDate);
|
|
||||||
}
|
|
||||||
if (cmp != 0) {
|
|
||||||
return cmp;
|
|
||||||
}
|
|
||||||
long timeSecs1 = time.toSecondOfDay() + adjustDays * 86400;
|
|
||||||
long timeSecs2 = other.time.toSecondOfDay() + other.adjustDays * 86400;
|
|
||||||
return Long.compare(timeSecs1, timeSecs2);
|
|
||||||
}
|
|
||||||
|
|
||||||
private LocalDate toLocalDate() {
|
|
||||||
LocalDate date;
|
|
||||||
if (dayOfMonthIndicator < 0) {
|
|
||||||
int monthLen = month.length(IsoChronology.INSTANCE.isLeapYear(year));
|
|
||||||
date = LocalDate.of(year, month, monthLen + 1 + dayOfMonthIndicator);
|
|
||||||
if (dayOfWeek != null) {
|
|
||||||
date = date.with(previousOrSame(dayOfWeek));
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
date = LocalDate.of(year, month, dayOfMonthIndicator);
|
|
||||||
if (dayOfWeek != null) {
|
|
||||||
date = date.with(nextOrSame(dayOfWeek));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return date;
|
|
||||||
}
|
|
||||||
|
|
||||||
// no equals() or hashCode()
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user