| author | okutsu |
| Thu, 14 Apr 2011 15:59:47 +0900 | |
| changeset 9224 | 75c0420badef |
| parent 6655 | b4130d85e450 |
| permissions | -rw-r--r-- |
| 6501 | 1 |
/* |
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* Copyright (c) 2010, 2011, 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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* Copyright (C) 2009-2010, International Business Machines Corporation and * |
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* others. All Rights Reserved. * |
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******************************************************************************* |
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*/ |
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package sun.util.locale; |
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public final class BaseLocale {
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public static final String SEP = "_"; |
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private static final Cache CACHE = new Cache(); |
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private final String language; |
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private final String script; |
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private final String region; |
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private final String variant; |
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private volatile int hash = 0; |
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// This method must be called only when creating the Locale.* constants. |
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private BaseLocale(String language, String region) {
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this.language = language; |
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this.script = ""; |
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this.region = region; |
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this.variant = ""; |
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} |
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private BaseLocale(String language, String script, String region, String variant) {
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this.language = (language != null) ? LocaleUtils.toLowerString(language).intern() : ""; |
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this.script = (script != null) ? LocaleUtils.toTitleString(script).intern() : ""; |
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this.region = (region != null) ? LocaleUtils.toUpperString(region).intern() : ""; |
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this.variant = (variant != null) ? variant.intern() : ""; |
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} |
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// Called for creating the Locale.* constants. No argument |
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// validation is performed. |
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public static BaseLocale createInstance(String language, String region) {
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BaseLocale base = new BaseLocale(language, region); |
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CACHE.put(new Key(language, region), base); |
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return base; |
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} |
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public static BaseLocale getInstance(String language, String script, |
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String region, String variant) {
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// JDK uses deprecated ISO639.1 language codes for he, yi and id |
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6655
b4130d85e450
6986612: pit jdk7 b112: java.util.Locale getDisplayVariant() sqe test getDisplayVariantTests.java fails
naoto
parents:
6501
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changeset
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if (language != null) {
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if (LocaleUtils.caseIgnoreMatch(language, "he")) {
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6655
b4130d85e450
6986612: pit jdk7 b112: java.util.Locale getDisplayVariant() sqe test getDisplayVariantTests.java fails
naoto
parents:
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changeset
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language = "iw"; |
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} else if (LocaleUtils.caseIgnoreMatch(language, "yi")) {
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6655
b4130d85e450
6986612: pit jdk7 b112: java.util.Locale getDisplayVariant() sqe test getDisplayVariantTests.java fails
naoto
parents:
6501
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changeset
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language = "ji"; |
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} else if (LocaleUtils.caseIgnoreMatch(language, "id")) {
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6655
b4130d85e450
6986612: pit jdk7 b112: java.util.Locale getDisplayVariant() sqe test getDisplayVariantTests.java fails
naoto
parents:
6501
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changeset
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language = "in"; |
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b4130d85e450
6986612: pit jdk7 b112: java.util.Locale getDisplayVariant() sqe test getDisplayVariantTests.java fails
naoto
parents:
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changeset
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} |
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} |
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Key key = new Key(language, script, region, variant); |
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BaseLocale baseLocale = CACHE.get(key); |
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return baseLocale; |
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} |
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public String getLanguage() {
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return language; |
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} |
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public String getScript() {
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return script; |
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} |
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public String getRegion() {
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return region; |
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} |
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public String getVariant() {
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return variant; |
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} |
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@Override |
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public boolean equals(Object obj) {
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if (this == obj) {
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return true; |
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} |
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if (!(obj instanceof BaseLocale)) {
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return false; |
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} |
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BaseLocale other = (BaseLocale)obj; |
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return language == other.language |
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&& script == other.script |
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&& region == other.region |
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&& variant == other.variant; |
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} |
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@Override |
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public String toString() {
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StringBuilder buf = new StringBuilder(); |
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if (language.length() > 0) {
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buf.append("language=");
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buf.append(language); |
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} |
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if (script.length() > 0) {
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if (buf.length() > 0) {
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buf.append(", ");
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} |
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buf.append("script=");
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buf.append(script); |
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} |
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if (region.length() > 0) {
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if (buf.length() > 0) {
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buf.append(", ");
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} |
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buf.append("region=");
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buf.append(region); |
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} |
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if (variant.length() > 0) {
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if (buf.length() > 0) {
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buf.append(", ");
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} |
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buf.append("variant=");
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buf.append(variant); |
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} |
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return buf.toString(); |
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} |
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@Override |
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public int hashCode() {
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int h = hash; |
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if (h == 0) {
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// Generating a hash value from language, script, region and variant |
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h = language.hashCode(); |
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h = 31 * h + script.hashCode(); |
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h = 31 * h + region.hashCode(); |
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h = 31 * h + variant.hashCode(); |
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hash = h; |
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} |
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return h; |
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} |
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private static final class Key implements Comparable<Key> {
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private final String lang; |
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private final String scrt; |
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private final String regn; |
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private final String vart; |
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private final boolean normalized; |
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private final int hash; |
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/** |
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* Creates a Key. language and region must be normalized |
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* (intern'ed in the proper case). |
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*/ |
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private Key(String language, String region) {
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assert language.intern() == language |
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&& region.intern() == region; |
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lang = language; |
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scrt = ""; |
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regn = region; |
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vart = ""; |
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this.normalized = true; |
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int h = language.hashCode(); |
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if (region != "") {
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int len = region.length(); |
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for (int i = 0; i < len; i++) {
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h = 31 * h + LocaleUtils.toLower(region.charAt(i)); |
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} |
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} |
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hash = h; |
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} |
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public Key(String language, String script, String region, String variant) {
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this(language, script, region, variant, false); |
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} |
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private Key(String language, String script, String region, |
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String variant, boolean normalized) {
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int h = 0; |
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if (language != null) {
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lang = language; |
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int len = language.length(); |
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for (int i = 0; i < len; i++) {
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h = 31*h + LocaleUtils.toLower(language.charAt(i)); |
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} |
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} else {
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lang = ""; |
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} |
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if (script != null) {
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scrt = script; |
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int len = script.length(); |
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for (int i = 0; i < len; i++) {
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h = 31*h + LocaleUtils.toLower(script.charAt(i)); |
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} |
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} else {
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scrt = ""; |
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} |
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if (region != null) {
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regn = region; |
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int len = region.length(); |
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for (int i = 0; i < len; i++) {
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h = 31*h + LocaleUtils.toLower(region.charAt(i)); |
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} |
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} else {
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regn = ""; |
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} |
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if (variant != null) {
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vart = variant; |
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int len = variant.length(); |
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for (int i = 0; i < len; i++) {
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h = 31*h + variant.charAt(i); |
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} |
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} else {
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vart = ""; |
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} |
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hash = h; |
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this.normalized = normalized; |
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} |
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@Override |
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public boolean equals(Object obj) {
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return (this == obj) || |
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(obj instanceof Key) |
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&& this.hash == ((Key)obj).hash |
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&& LocaleUtils.caseIgnoreMatch(((Key)obj).lang, this.lang) |
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&& LocaleUtils.caseIgnoreMatch(((Key)obj).scrt, this.scrt) |
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&& LocaleUtils.caseIgnoreMatch(((Key)obj).regn, this.regn) |
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&& ((Key)obj).vart.equals(vart); // variant is case sensitive in JDK! |
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} |
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@Override |
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public int compareTo(Key other) {
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int res = LocaleUtils.caseIgnoreCompare(this.lang, other.lang); |
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if (res == 0) {
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res = LocaleUtils.caseIgnoreCompare(this.scrt, other.scrt); |
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if (res == 0) {
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res = LocaleUtils.caseIgnoreCompare(this.regn, other.regn); |
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if (res == 0) {
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res = this.vart.compareTo(other.vart); |
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} |
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} |
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} |
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return res; |
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} |
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@Override |
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public int hashCode() {
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return hash; |
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} |
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public static Key normalize(Key key) {
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if (key.normalized) {
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return key; |
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} |
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String lang = LocaleUtils.toLowerString(key.lang).intern(); |
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String scrt = LocaleUtils.toTitleString(key.scrt).intern(); |
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String regn = LocaleUtils.toUpperString(key.regn).intern(); |
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String vart = key.vart.intern(); // preserve upper/lower cases |
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return new Key(lang, scrt, regn, vart, true); |
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} |
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} |
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private static class Cache extends LocaleObjectCache<Key, BaseLocale> {
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public Cache() {
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} |
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@Override |
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protected Key normalizeKey(Key key) {
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return Key.normalize(key); |
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} |
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@Override |
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protected BaseLocale createObject(Key key) {
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return new BaseLocale(key.lang, key.scrt, key.regn, key.vart); |
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} |
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} |
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} |