132 lines
4.9 KiB
Java
132 lines
4.9 KiB
Java
/*
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* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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*
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* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
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* (C) Copyright IBM Corp. 1996 - 2002 - All Rights Reserved
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*
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* The original version of this source code and documentation
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* is copyrighted and owned by Taligent, Inc., a wholly-owned
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* subsidiary of IBM. These materials are provided under terms
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* of a License Agreement between Taligent and Sun. This technology
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* is protected by multiple US and International patents.
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*
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* This notice and attribution to Taligent may not be removed.
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* Taligent is a registered trademark of Taligent, Inc.
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*/
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package sun.util.locale.provider;
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import java.text.Collator;
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import java.text.ParseException;
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import java.text.RuleBasedCollator;
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import java.text.spi.CollatorProvider;
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import java.util.Locale;
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import java.util.Set;
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/**
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* Concrete implementation of the
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* {@link java.text.spi.CollatorProvider CollatorProvider} class
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* for the JRE LocaleProviderAdapter.
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*/
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public class CollatorProviderImpl extends CollatorProvider implements AvailableLanguageTags {
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private final LocaleProviderAdapter.Type type;
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private final Set<String> langtags;
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public CollatorProviderImpl(LocaleProviderAdapter.Type type, Set<String> langtags) {
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this.type = type;
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this.langtags = langtags;
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}
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/**
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* Returns an array of all locales for which this locale service provider
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* can provide localized objects or names.
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*
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* @return An array of all locales for which this locale service provider
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* can provide localized objects or names.
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*/
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@Override
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public Locale[] getAvailableLocales() {
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return LocaleProviderAdapter.toLocaleArray(langtags);
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}
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@Override
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public boolean isSupportedLocale(Locale locale) {
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return LocaleProviderAdapter.isSupportedLocale(locale, type, langtags);
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}
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/**
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* Returns a new <code>Collator</code> instance for the specified locale.
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* @param locale the desired locale.
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* @return the <code>Collator</code> for the desired locale.
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* @exception NullPointerException if
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* <code>locale</code> is null
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* @exception IllegalArgumentException if <code>locale</code> isn't
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* one of the locales returned from
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* {@link java.util.spi.LocaleServiceProvider#getAvailableLocales()
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* getAvailableLocales()}.
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* @see java.text.Collator#getInstance(java.util.Locale)
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*/
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@Override
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public Collator getInstance(Locale locale) {
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if (locale == null) {
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throw new NullPointerException();
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}
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Collator result = null;
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// Load the resource of the desired locale from resource
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// manager.
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String colString = LocaleProviderAdapter.forType(type).getLocaleResources(locale).getCollationData();
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try
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{
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result = new RuleBasedCollator(CollationRules.DEFAULTRULES +
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colString);
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}
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catch(ParseException foo)
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{
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// predefined tables should contain correct grammar
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try {
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result = new RuleBasedCollator(CollationRules.DEFAULTRULES);
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} catch (ParseException bar) {
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// the default rules should always be parsable.
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throw new InternalError(bar);
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}
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}
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// Now that RuleBasedCollator adds expansions for pre-composed characters
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// into their decomposed equivalents, the default collators don't need
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// to have decomposition turned on. Laura, 5/5/98, bug 4114077
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result.setDecomposition(Collator.NO_DECOMPOSITION);
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return (Collator)result.clone();
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}
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@Override
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public Set<String> getAvailableLanguageTags() {
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return langtags;
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}
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}
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