--- /dev/null Fri Jul 20 13:01:24 2012 +++ new/src/share/classes/sun/util/locale/provider/BreakIteratorProviderImpl.java Fri Jul 20 13:01:23 2012 @@ -0,0 +1,193 @@ +/* + * Copyright (c) 1999, 2012, 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.text.BreakIterator; +import java.text.spi.BreakIteratorProvider; +import java.util.Locale; +import java.util.ResourceBundle; +import java.util.Set; +import sun.util.resources.LocaleData; + +/** + * 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 langtags; + + public BreakIteratorProviderImpl(LocaleProviderAdapter.Type type, Set 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 BreakIterator instance + * for word breaks + * for the given locale. + * @param locale the desired locale + * @return A break iterator for word breaks + * @exception NullPointerException if locale is null + * @exception IllegalArgumentException if locale 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 BreakIterator instance + * for line breaks + * for the given locale. + * @param locale the desired locale + * @return A break iterator for line breaks + * @exception NullPointerException if locale is null + * @exception IllegalArgumentException if locale 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 BreakIterator instance + * for character breaks + * for the given locale. + * @param locale the desired locale + * @return A break iterator for character breaks + * @exception NullPointerException if locale is null + * @exception IllegalArgumentException if locale 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 BreakIterator instance + * for sentence breaks + * for the given locale. + * @param locale the desired locale + * @return A break iterator for sentence breaks + * @exception NullPointerException if locale is null + * @exception IllegalArgumentException if locale 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 dataName, + String dictionaryName) { + if (locale == null) { + throw new NullPointerException(); + } + + ResourceBundle bundle = LocaleData.getBundle( + LocaleProviderAdapter.Type.JRE.getTextResourcesPackage() + ".BreakIteratorInfo", locale); + String[] classNames = bundle.getStringArray("BreakIteratorClasses"); + + String dataFile = bundle.getString(dataName); + + try { + switch (classNames[type]) { + case "RuleBasedBreakIterator": + return new RuleBasedBreakIterator(dataFile); + case "DictionaryBasedBreakIterator": + String dictionaryFile = bundle.getString(dictionaryName); + return new DictionaryBasedBreakIterator(dataFile, dictionaryFile); + default: + throw new IllegalArgumentException("Invalid break iterator class \"" + + classNames[type] + "\""); + } + } catch (Exception e) { + throw new InternalError(e.toString(), e); + } + } + + @Override + public Set getAvailableLanguageTags() { + return langtags; + } + + @Override + public boolean isSupportedLocale(Locale locale) { + return LocaleProviderAdapter.isSupportedLocale(locale, type, langtags); +} +}