author | avstepan |
Tue, 18 Aug 2015 18:04:17 +0300 | |
changeset 32227 | 34721a47bc92 |
parent 25859 | 3317bb8137f4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 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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#warn This file is preprocessed before being compiled |
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package sun.util; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Locale; |
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import java.util.ResourceBundle; |
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import java.util.ResourceBundle.Control; |
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/** |
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* This is a convenient class for loading some of internal resources faster |
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* if they are built with Resources.gmk defined in J2SE workspace. Also, |
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* they have to be in class file format. |
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* |
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* "LOCALE_LIST" will be replaced at built time by a list of locales we |
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* defined in Defs.gmk. We want to exclude these locales from search to |
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* gain better performance. For example, since we know if the resource |
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* is built with Resources.gmk, they are not going to provide basename_en.class |
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* & basename_en_US.class resources, in that case, continuing searching them |
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* is expensive. By excluding them from the candidate locale list, these |
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* resources won't be searched. |
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* |
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* @since 1.6. |
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*/ |
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public class CoreResourceBundleControl extends ResourceBundle.Control { |
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/* the candidate locale list to search */ |
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private final Collection<Locale> excludedJDKLocales; |
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/* singlton instance of the resource bundle control. */ |
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private static CoreResourceBundleControl resourceBundleControlInstance = |
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new CoreResourceBundleControl(); |
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protected CoreResourceBundleControl() { |
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excludedJDKLocales = Arrays.asList(#LOCALE_LIST#); |
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} |
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/** |
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* This method is to provide a customized ResourceBundle.Control to speed |
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* up the search of resources in JDK. |
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* |
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* @return the instance of resource bundle control. |
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*/ |
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public static CoreResourceBundleControl getRBControlInstance() { |
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return resourceBundleControlInstance; |
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} |
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/** |
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* This method is to provide a customized ResourceBundle.Control to speed |
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* up the search of resources in JDK, with the bundle's package name check. |
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* |
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* @param bundleName bundle name to check |
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* @return the instance of resource bundle control if the bundle is JDK's, |
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* otherwise returns null. |
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*/ |
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public static CoreResourceBundleControl getRBControlInstance(String bundleName) { |
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if (bundleName.startsWith("com.sun.") || |
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bundleName.startsWith("java.") || |
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bundleName.startsWith("javax.") || |
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bundleName.startsWith("sun.")) { |
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return resourceBundleControlInstance; |
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} else { |
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return null; |
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} |
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} |
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/** |
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32227
34721a47bc92
8132478: [tidy] three new warnings from java docs (java.net, javax.annotation)
avstepan
parents:
25859
diff
changeset
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* @return a list of candidate locales to search from. |
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* @exception NullPointerException if baseName or locale is null. |
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*/ |
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@Override |
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public List<Locale> getCandidateLocales(String baseName, Locale locale) { |
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List<Locale> candidates = super.getCandidateLocales(baseName, locale); |
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candidates.removeAll(excludedJDKLocales); |
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return candidates; |
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} |
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/** |
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* @ returns TTL_DONT_CACHE so that ResourceBundle instance won't be cached. |
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* User of this CoreResourceBundleControl should probably maintain a hard reference |
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* to the ResourceBundle object themselves. |
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*/ |
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@Override |
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public long getTimeToLive(String baseName, Locale locale) { |
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return ResourceBundle.Control.TTL_DONT_CACHE; |
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} |
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} |