| /* |
| * 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.lang.ref.SoftReference; |
| |
| import java.util.StringJoiner; |
| |
| public final class BaseLocale { |
| |
| public static final String SEP = "_"; |
| |
| private static final Cache CACHE = new Cache(); |
| |
| private final String language; |
| private final String script; |
| private final String region; |
| private final String variant; |
| |
| private volatile int hash; |
| |
| // This method must be called only when creating the Locale.* constants. |
| private BaseLocale(String language, String region) { |
| this.language = language; |
| this.script = ""; |
| this.region = region; |
| this.variant = ""; |
| } |
| |
| private BaseLocale(String language, String script, String region, String variant) { |
| this.language = (language != null) ? LocaleUtils.toLowerString(language).intern() : ""; |
| this.script = (script != null) ? LocaleUtils.toTitleString(script).intern() : ""; |
| this.region = (region != null) ? LocaleUtils.toUpperString(region).intern() : ""; |
| this.variant = (variant != null) ? variant.intern() : ""; |
| } |
| |
| // Called for creating the Locale.* constants. No argument |
| // validation is performed. |
| public static BaseLocale createInstance(String language, String region) { |
| BaseLocale base = new BaseLocale(language, region); |
| CACHE.put(new Key(language, region), base); |
| return base; |
| } |
| |
| public static BaseLocale getInstance(String language, String script, |
| String region, String variant) { |
| // JDK uses deprecated ISO639.1 language codes for he, yi and id |
| if (language != null) { |
| if (LocaleUtils.caseIgnoreMatch(language, "he")) { |
| language = "iw"; |
| } else if (LocaleUtils.caseIgnoreMatch(language, "yi")) { |
| language = "ji"; |
| } else if (LocaleUtils.caseIgnoreMatch(language, "id")) { |
| language = "in"; |
| } |
| } |
| |
| Key key = new Key(language, script, region, variant); |
| BaseLocale baseLocale = CACHE.get(key); |
| return baseLocale; |
| } |
| |
| public String getLanguage() { |
| return language; |
| } |
| |
| public String getScript() { |
| return script; |
| } |
| |
| public String getRegion() { |
| return region; |
| } |
| |
| public String getVariant() { |
| return variant; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (!(obj instanceof BaseLocale)) { |
| return false; |
| } |
| BaseLocale other = (BaseLocale)obj; |
| return language == other.language |
| && script == other.script |
| && region == other.region |
| && variant == other.variant; |
| } |
| |
| @Override |
| public String toString() { |
| StringJoiner sj = new StringJoiner(", "); |
| if (language.length() > 0) { |
| sj.add("language=" + language); |
| } |
| if (script.length() > 0) { |
| sj.add("script=" + script); |
| } |
| if (region.length() > 0) { |
| sj.add("region=" + region); |
| } |
| if (variant.length() > 0) { |
| sj.add("variant=" + variant); |
| } |
| return sj.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| int h = hash; |
| if (h == 0) { |
| // Generating a hash value from language, script, region and variant |
| h = language.hashCode(); |
| h = 31 * h + script.hashCode(); |
| h = 31 * h + region.hashCode(); |
| h = 31 * h + variant.hashCode(); |
| if (h != 0) { |
| hash = h; |
| } |
| } |
| return h; |
| } |
| |
| private static final class Key { |
| private final SoftReference<String> lang; |
| private final SoftReference<String> scrt; |
| private final SoftReference<String> regn; |
| private final SoftReference<String> vart; |
| private final boolean normalized; |
| private final int hash; |
| |
| /** |
| * Creates a Key. language and region must be normalized |
| * (intern'ed in the proper case). |
| */ |
| private Key(String language, String region) { |
| assert language.intern() == language |
| && region.intern() == region; |
| |
| lang = new SoftReference<>(language); |
| scrt = new SoftReference<>(""); |
| regn = new SoftReference<>(region); |
| vart = new SoftReference<>(""); |
| this.normalized = true; |
| |
| int h = language.hashCode(); |
| if (region != "") { |
| int len = region.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31 * h + LocaleUtils.toLower(region.charAt(i)); |
| } |
| } |
| hash = h; |
| } |
| |
| public Key(String language, String script, String region, String variant) { |
| this(language, script, region, variant, false); |
| } |
| |
| private Key(String language, String script, String region, |
| String variant, boolean normalized) { |
| int h = 0; |
| if (language != null) { |
| lang = new SoftReference<>(language); |
| int len = language.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(language.charAt(i)); |
| } |
| } else { |
| lang = new SoftReference<>(""); |
| } |
| if (script != null) { |
| scrt = new SoftReference<>(script); |
| int len = script.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(script.charAt(i)); |
| } |
| } else { |
| scrt = new SoftReference<>(""); |
| } |
| if (region != null) { |
| regn = new SoftReference<>(region); |
| int len = region.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(region.charAt(i)); |
| } |
| } else { |
| regn = new SoftReference<>(""); |
| } |
| if (variant != null) { |
| vart = new SoftReference<>(variant); |
| int len = variant.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + variant.charAt(i); |
| } |
| } else { |
| vart = new SoftReference<>(""); |
| } |
| hash = h; |
| this.normalized = normalized; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof Key && this.hash == ((Key)obj).hash) { |
| String tl = this.lang.get(); |
| String ol = ((Key)obj).lang.get(); |
| if (tl != null && ol != null && |
| LocaleUtils.caseIgnoreMatch(ol, tl)) { |
| String ts = this.scrt.get(); |
| String os = ((Key)obj).scrt.get(); |
| if (ts != null && os != null && |
| LocaleUtils.caseIgnoreMatch(os, ts)) { |
| String tr = this.regn.get(); |
| String or = ((Key)obj).regn.get(); |
| if (tr != null && or != null && |
| LocaleUtils.caseIgnoreMatch(or, tr)) { |
| String tv = this.vart.get(); |
| String ov = ((Key)obj).vart.get(); |
| return (ov != null && ov.equals(tv)); |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return hash; |
| } |
| |
| public static Key normalize(Key key) { |
| if (key.normalized) { |
| return key; |
| } |
| |
| String lang = LocaleUtils.toLowerString(key.lang.get()).intern(); |
| String scrt = LocaleUtils.toTitleString(key.scrt.get()).intern(); |
| String regn = LocaleUtils.toUpperString(key.regn.get()).intern(); |
| String vart = key.vart.get().intern(); // preserve upper/lower cases |
| |
| return new Key(lang, scrt, regn, vart, true); |
| } |
| } |
| |
| private static class Cache extends LocaleObjectCache<Key, BaseLocale> { |
| |
| public Cache() { |
| } |
| |
| @Override |
| protected Key normalizeKey(Key key) { |
| assert key.lang.get() != null && |
| key.scrt.get() != null && |
| key.regn.get() != null && |
| key.vart.get() != null; |
| |
| return Key.normalize(key); |
| } |
| |
| @Override |
| protected BaseLocale createObject(Key key) { |
| return new BaseLocale(key.lang.get(), key.scrt.get(), |
| key.regn.get(), key.vart.get()); |
| } |
| } |
| } |