| /* |
| * Copyright (c) 2010, 2011, 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.TreeMap; |
| import java.util.TreeSet; |
| |
| import sun.util.locale.InternalLocaleBuilder.CaseInsensitiveChar; |
| import sun.util.locale.InternalLocaleBuilder.CaseInsensitiveString; |
| |
| |
| public class LocaleExtensions { |
| |
| private final Map<Character, Extension> extensionMap; |
| private final String id; |
| |
| public static final LocaleExtensions CALENDAR_JAPANESE |
| = new LocaleExtensions("u-ca-japanese", |
| UnicodeLocaleExtension.SINGLETON, |
| UnicodeLocaleExtension.CA_JAPANESE); |
| |
| public static final LocaleExtensions NUMBER_THAI |
| = new LocaleExtensions("u-nu-thai", |
| UnicodeLocaleExtension.SINGLETON, |
| UnicodeLocaleExtension.NU_THAI); |
| |
| private LocaleExtensions(String id, Character key, Extension value) { |
| this.id = id; |
| this.extensionMap = Collections.singletonMap(key, value); |
| } |
| |
| /* |
| * Package private constructor, only used by InternalLocaleBuilder. |
| */ |
| LocaleExtensions(Map<CaseInsensitiveChar, String> extensions, |
| Set<CaseInsensitiveString> uattributes, |
| Map<CaseInsensitiveString, String> ukeywords) { |
| boolean hasExtension = !LocaleUtils.isEmpty(extensions); |
| boolean hasUAttributes = !LocaleUtils.isEmpty(uattributes); |
| boolean hasUKeywords = !LocaleUtils.isEmpty(ukeywords); |
| |
| if (!hasExtension && !hasUAttributes && !hasUKeywords) { |
| id = ""; |
| extensionMap = Collections.emptyMap(); |
| return; |
| } |
| |
| // Build extension map |
| SortedMap<Character, Extension> map = new TreeMap<>(); |
| if (hasExtension) { |
| for (Entry<CaseInsensitiveChar, String> ext : extensions.entrySet()) { |
| char key = LocaleUtils.toLower(ext.getKey().value()); |
| String value = ext.getValue(); |
| |
| if (LanguageTag.isPrivateusePrefixChar(key)) { |
| // we need to exclude special variant in privuateuse, e.g. "x-abc-lvariant-DEF" |
| value = InternalLocaleBuilder.removePrivateuseVariant(value); |
| if (value == null) { |
| continue; |
| } |
| } |
| |
| map.put(key, new Extension(key, LocaleUtils.toLowerString(value))); |
| } |
| } |
| |
| if (hasUAttributes || hasUKeywords) { |
| SortedSet<String> uaset = null; |
| SortedMap<String, String> ukmap = null; |
| |
| if (hasUAttributes) { |
| uaset = new TreeSet<>(); |
| for (CaseInsensitiveString cis : uattributes) { |
| uaset.add(LocaleUtils.toLowerString(cis.value())); |
| } |
| } |
| |
| if (hasUKeywords) { |
| ukmap = new TreeMap<>(); |
| for (Entry<CaseInsensitiveString, String> kwd : ukeywords.entrySet()) { |
| String key = LocaleUtils.toLowerString(kwd.getKey().value()); |
| String type = LocaleUtils.toLowerString(kwd.getValue()); |
| ukmap.put(key, type); |
| } |
| } |
| |
| UnicodeLocaleExtension ule = new UnicodeLocaleExtension(uaset, ukmap); |
| map.put(UnicodeLocaleExtension.SINGLETON, ule); |
| } |
| |
| if (map.isEmpty()) { |
| // this could happen when only privuateuse with special variant |
| id = ""; |
| extensionMap = Collections.emptyMap(); |
| } else { |
| id = toID(map); |
| extensionMap = map; |
| } |
| } |
| |
| public Set<Character> getKeys() { |
| if (extensionMap.isEmpty()) { |
| return Collections.emptySet(); |
| } |
| return Collections.unmodifiableSet(extensionMap.keySet()); |
| } |
| |
| public Extension getExtension(Character key) { |
| return extensionMap.get(LocaleUtils.toLower(key)); |
| } |
| |
| public String getExtensionValue(Character key) { |
| Extension ext = extensionMap.get(LocaleUtils.toLower(key)); |
| if (ext == null) { |
| return null; |
| } |
| return ext.getValue(); |
| } |
| |
| public Set<String> getUnicodeLocaleAttributes() { |
| Extension ext = extensionMap.get(UnicodeLocaleExtension.SINGLETON); |
| if (ext == null) { |
| return Collections.emptySet(); |
| } |
| assert (ext instanceof UnicodeLocaleExtension); |
| return ((UnicodeLocaleExtension)ext).getUnicodeLocaleAttributes(); |
| } |
| |
| public Set<String> getUnicodeLocaleKeys() { |
| Extension ext = extensionMap.get(UnicodeLocaleExtension.SINGLETON); |
| if (ext == null) { |
| return Collections.emptySet(); |
| } |
| assert (ext instanceof UnicodeLocaleExtension); |
| return ((UnicodeLocaleExtension)ext).getUnicodeLocaleKeys(); |
| } |
| |
| public String getUnicodeLocaleType(String unicodeLocaleKey) { |
| Extension ext = extensionMap.get(UnicodeLocaleExtension.SINGLETON); |
| if (ext == null) { |
| return null; |
| } |
| assert (ext instanceof UnicodeLocaleExtension); |
| return ((UnicodeLocaleExtension)ext).getUnicodeLocaleType(LocaleUtils.toLowerString(unicodeLocaleKey)); |
| } |
| |
| public boolean isEmpty() { |
| return extensionMap.isEmpty(); |
| } |
| |
| public static boolean isValidKey(char c) { |
| return LanguageTag.isExtensionSingletonChar(c) || LanguageTag.isPrivateusePrefixChar(c); |
| } |
| |
| public static boolean isValidUnicodeLocaleKey(String ukey) { |
| return UnicodeLocaleExtension.isKey(ukey); |
| } |
| |
| private static String toID(SortedMap<Character, Extension> map) { |
| StringBuilder buf = new StringBuilder(); |
| Extension privuse = null; |
| for (Entry<Character, Extension> entry : map.entrySet()) { |
| char singleton = entry.getKey(); |
| Extension extension = entry.getValue(); |
| if (LanguageTag.isPrivateusePrefixChar(singleton)) { |
| privuse = extension; |
| } else { |
| if (buf.length() > 0) { |
| buf.append(LanguageTag.SEP); |
| } |
| buf.append(extension); |
| } |
| } |
| if (privuse != null) { |
| if (buf.length() > 0) { |
| buf.append(LanguageTag.SEP); |
| } |
| buf.append(privuse); |
| } |
| return buf.toString(); |
| } |
| |
| @Override |
| public String toString() { |
| return id; |
| } |
| |
| public String getID() { |
| return id; |
| } |
| |
| @Override |
| public int hashCode() { |
| return id.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) { |
| return true; |
| } |
| if (!(other instanceof LocaleExtensions)) { |
| return false; |
| } |
| return id.equals(((LocaleExtensions)other).id); |
| } |
| } |