| /* |
| * 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; |
| |
| |
| 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 = 0; |
| |
| // 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() { |
| StringBuilder buf = new StringBuilder(); |
| if (language.length() > 0) { |
| buf.append("language="); |
| buf.append(language); |
| } |
| if (script.length() > 0) { |
| if (buf.length() > 0) { |
| buf.append(", "); |
| } |
| buf.append("script="); |
| buf.append(script); |
| } |
| if (region.length() > 0) { |
| if (buf.length() > 0) { |
| buf.append(", "); |
| } |
| buf.append("region="); |
| buf.append(region); |
| } |
| if (variant.length() > 0) { |
| if (buf.length() > 0) { |
| buf.append(", "); |
| } |
| buf.append("variant="); |
| buf.append(variant); |
| } |
| return buf.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(); |
| hash = h; |
| } |
| return h; |
| } |
| |
| private static final class Key implements Comparable<Key> { |
| private final String lang; |
| private final String scrt; |
| private final String regn; |
| private final 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 = language; |
| scrt = ""; |
| regn = region; |
| vart = ""; |
| 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 = language; |
| int len = language.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(language.charAt(i)); |
| } |
| } else { |
| lang = ""; |
| } |
| if (script != null) { |
| scrt = script; |
| int len = script.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(script.charAt(i)); |
| } |
| } else { |
| scrt = ""; |
| } |
| if (region != null) { |
| regn = region; |
| int len = region.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + LocaleUtils.toLower(region.charAt(i)); |
| } |
| } else { |
| regn = ""; |
| } |
| if (variant != null) { |
| vart = variant; |
| int len = variant.length(); |
| for (int i = 0; i < len; i++) { |
| h = 31*h + variant.charAt(i); |
| } |
| } else { |
| vart = ""; |
| } |
| hash = h; |
| this.normalized = normalized; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return (this == obj) || |
| (obj instanceof Key) |
| && this.hash == ((Key)obj).hash |
| && LocaleUtils.caseIgnoreMatch(((Key)obj).lang, this.lang) |
| && LocaleUtils.caseIgnoreMatch(((Key)obj).scrt, this.scrt) |
| && LocaleUtils.caseIgnoreMatch(((Key)obj).regn, this.regn) |
| && ((Key)obj).vart.equals(vart); // variant is case sensitive in JDK! |
| } |
| |
| @Override |
| public int compareTo(Key other) { |
| int res = LocaleUtils.caseIgnoreCompare(this.lang, other.lang); |
| if (res == 0) { |
| res = LocaleUtils.caseIgnoreCompare(this.scrt, other.scrt); |
| if (res == 0) { |
| res = LocaleUtils.caseIgnoreCompare(this.regn, other.regn); |
| if (res == 0) { |
| res = this.vart.compareTo(other.vart); |
| } |
| } |
| } |
| return res; |
| } |
| |
| @Override |
| public int hashCode() { |
| return hash; |
| } |
| |
| public static Key normalize(Key key) { |
| if (key.normalized) { |
| return key; |
| } |
| |
| String lang = LocaleUtils.toLowerString(key.lang).intern(); |
| String scrt = LocaleUtils.toTitleString(key.scrt).intern(); |
| String regn = LocaleUtils.toUpperString(key.regn).intern(); |
| String vart = key.vart.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) { |
| return Key.normalize(key); |
| } |
| |
| @Override |
| protected BaseLocale createObject(Key key) { |
| return new BaseLocale(key.lang, key.scrt, key.regn, key.vart); |
| } |
| } |
| } |