| /* |
| * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.util.locale.provider; |
| |
| import java.io.IOException; |
| import java.text.BreakIterator; |
| import java.text.spi.BreakIteratorProvider; |
| import java.util.Locale; |
| import java.util.MissingResourceException; |
| import java.util.Objects; |
| import java.util.Set; |
| import sun.text.DictionaryBasedBreakIterator; |
| import sun.text.RuleBasedBreakIterator; |
| |
| /** |
| * Concrete implementation of the {@link java.text.spi.BreakIteratorProvider |
| * BreakIteratorProvider} class for the JRE LocaleProviderAdapter. |
| * |
| * @author Naoto Sato |
| * @author Masayoshi Okutsu |
| */ |
| public class BreakIteratorProviderImpl extends BreakIteratorProvider |
| implements AvailableLanguageTags { |
| |
| private static final int CHARACTER_INDEX = 0; |
| private static final int WORD_INDEX = 1; |
| private static final int LINE_INDEX = 2; |
| private static final int SENTENCE_INDEX = 3; |
| |
| private final LocaleProviderAdapter.Type type; |
| private final Set<String> langtags; |
| |
| public BreakIteratorProviderImpl(LocaleProviderAdapter.Type type, Set<String> langtags) { |
| this.type = type; |
| this.langtags = langtags; |
| } |
| |
| /** |
| * Returns an array of all locales for which this locale service provider |
| * can provide localized objects or names. |
| * |
| * @return An array of all locales for which this locale service provider |
| * can provide localized objects or names. |
| */ |
| @Override |
| public Locale[] getAvailableLocales() { |
| return LocaleProviderAdapter.toLocaleArray(langtags); |
| } |
| |
| /** |
| * Returns a new <code>BreakIterator</code> instance |
| * for <a href="../BreakIterator.html#word">word breaks</a> |
| * for the given locale. |
| * @param locale the desired locale |
| * @return A break iterator for word breaks |
| * @exception NullPointerException if <code>locale</code> is null |
| * @exception IllegalArgumentException if <code>locale</code> isn't |
| * one of the locales returned from |
| * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() |
| * getAvailableLocales()}. |
| * @see java.text.BreakIterator#getWordInstance(java.util.Locale) |
| */ |
| @Override |
| public BreakIterator getWordInstance(Locale locale) { |
| return getBreakInstance(locale, |
| WORD_INDEX, |
| "WordData", |
| "WordDictionary"); |
| } |
| |
| /** |
| * Returns a new <code>BreakIterator</code> instance |
| * for <a href="../BreakIterator.html#line">line breaks</a> |
| * for the given locale. |
| * @param locale the desired locale |
| * @return A break iterator for line breaks |
| * @exception NullPointerException if <code>locale</code> is null |
| * @exception IllegalArgumentException if <code>locale</code> isn't |
| * one of the locales returned from |
| * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() |
| * getAvailableLocales()}. |
| * @see java.text.BreakIterator#getLineInstance(java.util.Locale) |
| */ |
| @Override |
| public BreakIterator getLineInstance(Locale locale) { |
| return getBreakInstance(locale, |
| LINE_INDEX, |
| "LineData", |
| "LineDictionary"); |
| } |
| |
| /** |
| * Returns a new <code>BreakIterator</code> instance |
| * for <a href="../BreakIterator.html#character">character breaks</a> |
| * for the given locale. |
| * @param locale the desired locale |
| * @return A break iterator for character breaks |
| * @exception NullPointerException if <code>locale</code> is null |
| * @exception IllegalArgumentException if <code>locale</code> isn't |
| * one of the locales returned from |
| * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() |
| * getAvailableLocales()}. |
| * @see java.text.BreakIterator#getCharacterInstance(java.util.Locale) |
| */ |
| @Override |
| public BreakIterator getCharacterInstance(Locale locale) { |
| return getBreakInstance(locale, |
| CHARACTER_INDEX, |
| "CharacterData", |
| "CharacterDictionary"); |
| } |
| |
| /** |
| * Returns a new <code>BreakIterator</code> instance |
| * for <a href="../BreakIterator.html#sentence">sentence breaks</a> |
| * for the given locale. |
| * @param locale the desired locale |
| * @return A break iterator for sentence breaks |
| * @exception NullPointerException if <code>locale</code> is null |
| * @exception IllegalArgumentException if <code>locale</code> isn't |
| * one of the locales returned from |
| * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() |
| * getAvailableLocales()}. |
| * @see java.text.BreakIterator#getSentenceInstance(java.util.Locale) |
| */ |
| @Override |
| public BreakIterator getSentenceInstance(Locale locale) { |
| return getBreakInstance(locale, |
| SENTENCE_INDEX, |
| "SentenceData", |
| "SentenceDictionary"); |
| } |
| |
| private BreakIterator getBreakInstance(Locale locale, |
| int type, |
| String ruleName, |
| String dictionaryName) { |
| Objects.requireNonNull(locale); |
| |
| LocaleResources lr = LocaleProviderAdapter.forJRE().getLocaleResources(locale); |
| String[] classNames = (String[]) lr.getBreakIteratorInfo("BreakIteratorClasses"); |
| String ruleFile = (String) lr.getBreakIteratorInfo(ruleName); |
| byte[] ruleData = lr.getBreakIteratorResources(ruleName); |
| |
| try { |
| switch (classNames[type]) { |
| case "RuleBasedBreakIterator": |
| return new RuleBasedBreakIterator(ruleFile, ruleData); |
| |
| case "DictionaryBasedBreakIterator": |
| String dictionaryFile = (String) lr.getBreakIteratorInfo(dictionaryName); |
| byte[] dictionaryData = lr.getBreakIteratorResources(dictionaryName); |
| return new DictionaryBasedBreakIterator(ruleFile, ruleData, |
| dictionaryFile, dictionaryData); |
| default: |
| throw new IllegalArgumentException("Invalid break iterator class \"" + |
| classNames[type] + "\""); |
| } |
| } catch (MissingResourceException | IllegalArgumentException e) { |
| throw new InternalError(e.toString(), e); |
| } |
| } |
| |
| @Override |
| public Set<String> getAvailableLanguageTags() { |
| return langtags; |
| } |
| |
| @Override |
| public boolean isSupportedLocale(Locale locale) { |
| return LocaleProviderAdapter.forType(type).isSupportedProviderLocale(locale, langtags); |
| } |
| } |