| |
| /* |
| * Copyright (c) 2010, 2014, 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. |
| */ |
| |
| /* |
| ******************************************************************************* |
| * Copyright (C) 2009-2010, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| package sun.util.locale; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| import java.util.SortedMap; |
| import java.util.SortedSet; |
| import java.util.StringJoiner; |
| |
| public class UnicodeLocaleExtension extends Extension { |
| public static final char SINGLETON = 'u'; |
| |
| private final Set<String> attributes; |
| private final Map<String, String> keywords; |
| |
| public static final UnicodeLocaleExtension CA_JAPANESE |
| = new UnicodeLocaleExtension("ca", "japanese"); |
| public static final UnicodeLocaleExtension NU_THAI |
| = new UnicodeLocaleExtension("nu", "thai"); |
| |
| private UnicodeLocaleExtension(String key, String value) { |
| super(SINGLETON, key + "-" + value); |
| attributes = Collections.emptySet(); |
| keywords = Collections.singletonMap(key, value); |
| } |
| |
| UnicodeLocaleExtension(SortedSet<String> attributes, SortedMap<String, String> keywords) { |
| super(SINGLETON); |
| if (attributes != null) { |
| this.attributes = attributes; |
| } else { |
| this.attributes = Collections.emptySet(); |
| } |
| if (keywords != null) { |
| this.keywords = keywords; |
| } else { |
| this.keywords = Collections.emptyMap(); |
| } |
| |
| if (!this.attributes.isEmpty() || !this.keywords.isEmpty()) { |
| StringJoiner sj = new StringJoiner(LanguageTag.SEP); |
| for (String attribute : this.attributes) { |
| sj.add(attribute); |
| } |
| for (Entry<String, String> keyword : this.keywords.entrySet()) { |
| String key = keyword.getKey(); |
| String value = keyword.getValue(); |
| |
| sj.add(key); |
| if (value.length() > 0) { |
| sj.add(value); |
| } |
| } |
| setValue(sj.toString()); |
| } |
| } |
| |
| public Set<String> getUnicodeLocaleAttributes() { |
| if (attributes == Collections.EMPTY_SET) { |
| return attributes; |
| } |
| return Collections.unmodifiableSet(attributes); |
| } |
| |
| public Set<String> getUnicodeLocaleKeys() { |
| if (keywords == Collections.EMPTY_MAP) { |
| return Collections.emptySet(); |
| } |
| return Collections.unmodifiableSet(keywords.keySet()); |
| } |
| |
| public String getUnicodeLocaleType(String unicodeLocaleKey) { |
| return keywords.get(unicodeLocaleKey); |
| } |
| |
| public static boolean isSingletonChar(char c) { |
| return (SINGLETON == LocaleUtils.toLower(c)); |
| } |
| |
| public static boolean isAttribute(String s) { |
| // 3*8alphanum |
| int len = s.length(); |
| return (len >= 3) && (len <= 8) && LocaleUtils.isAlphaNumericString(s); |
| } |
| |
| public static boolean isKey(String s) { |
| // 2alphanum |
| return (s.length() == 2) && LocaleUtils.isAlphaNumericString(s); |
| } |
| |
| public static boolean isTypeSubtag(String s) { |
| // 3*8alphanum |
| int len = s.length(); |
| return (len >= 3) && (len <= 8) && LocaleUtils.isAlphaNumericString(s); |
| } |
| } |