jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/util/JavacMessages.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/javac/util/JavacMessages.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/javac/util/JavacMessages.java

Wed, 27 Apr 2016 01:34:52 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:34:52 +0800
changeset 0: 959103a6100f
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

 /*
  * Copyright (c) 2005, 2013, 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.
  */
 package com.sun.tools.javac.util;
 import com.sun.tools.javac.api.Messages;
 import java.lang.ref.SoftReference;
 import java.util.ResourceBundle;
 import java.util.MissingResourceException;
 import java.text.MessageFormat;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
 /**
  *  Support for formatted localized messages.
  *
  *  <p><b>This is NOT part of any supported API.
  *  If you write code that depends on this, you do so at your own risk.
  *  This code and its internal interfaces are subject to change or
  *  deletion without notice.</b>
  */
 public class JavacMessages implements Messages {
     /** The context key for the JavacMessages object. */
     public static final Context.Key<JavacMessages> messagesKey =
         new Context.Key<JavacMessages>();
     /** Get the JavacMessages instance for this context. */
     public static JavacMessages instance(Context context) {
         JavacMessages instance = context.get(messagesKey);
         if (instance == null)
             instance = new JavacMessages(context);
         return instance;
     }
     private Map<Locale, SoftReference<List<ResourceBundle>>> bundleCache;
     private List<String> bundleNames;
     private Locale currentLocale;
     private List<ResourceBundle> currentBundles;
     public Locale getCurrentLocale() {
         return currentLocale;
     }
     public void setCurrentLocale(Locale locale) {
         if (locale == null) {
             locale = Locale.getDefault();
         }
         this.currentBundles = getBundles(locale);
         this.currentLocale = locale;
     }
     /** Creates a JavacMessages object.
      */
     public JavacMessages(Context context) {
         this(defaultBundleName, context.get(Locale.class));
         context.put(messagesKey, this);
     }
     /** Creates a JavacMessages object.
      * @param bundleName the name to identify the resource bundle of localized messages.
      */
     public JavacMessages(String bundleName) throws MissingResourceException {
         this(bundleName, null);
     }
     /** Creates a JavacMessages object.
      * @param bundleName the name to identify the resource bundle of localized messages.
      */
     public JavacMessages(String bundleName, Locale locale) throws MissingResourceException {
         bundleNames = List.nil();
         bundleCache = new HashMap<Locale, SoftReference<List<ResourceBundle>>>();
         add(bundleName);
         setCurrentLocale(locale);
     }
     public JavacMessages() throws MissingResourceException {
         this(defaultBundleName);
     }
     public void add(String bundleName) throws MissingResourceException {
         bundleNames = bundleNames.prepend(bundleName);
         if (!bundleCache.isEmpty())
             bundleCache.clear();
         currentBundles = null;
     }
     public List<ResourceBundle> getBundles(Locale locale) {
         if (locale == currentLocale && currentBundles != null)
             return currentBundles;
         SoftReference<List<ResourceBundle>> bundles = bundleCache.get(locale);
         List<ResourceBundle> bundleList = bundles == null ? null : bundles.get();
         if (bundleList == null) {
             bundleList = List.nil();
             for (String bundleName : bundleNames) {
                 try {
                     ResourceBundle rb = ResourceBundle.getBundle(bundleName, locale);
                     bundleList = bundleList.prepend(rb);
                 } catch (MissingResourceException e) {
                     throw new InternalError("Cannot find javac resource bundle for locale " + locale);
                 }
             }
             bundleCache.put(locale, new SoftReference<List<ResourceBundle>>(bundleList));
         }
         return bundleList;
     }
     /** Gets the localized string corresponding to a key, formatted with a set of args.
      */
     public String getLocalizedString(String key, Object... args) {
         return getLocalizedString(currentLocale, key, args);
     }
     public String getLocalizedString(Locale l, String key, Object... args) {
         if (l == null)
             l = getCurrentLocale();
         return getLocalizedString(getBundles(l), key, args);
     }
     /* Static access:
      * javac has a firmly entrenched notion of a default message bundle
      * which it can access from any static context. This is used to get
      * easy access to simple localized strings.
      */
     private static final String defaultBundleName =
         "com.sun.tools.javac.resources.compiler";
     private static ResourceBundle defaultBundle;
     private static JavacMessages defaultMessages;
     /**
      * Gets a localized string from the compiler's default bundle.
      */
     // used to support legacy Log.getLocalizedString
     static String getDefaultLocalizedString(String key, Object... args) {
         return getLocalizedString(List.of(getDefaultBundle()), key, args);
     }
     // used to support legacy static Diagnostic.fragment
     @Deprecated
     static JavacMessages getDefaultMessages() {
         if (defaultMessages == null)
             defaultMessages = new JavacMessages(defaultBundleName);
         return defaultMessages;
     }
     public static ResourceBundle getDefaultBundle() {
         try {
             if (defaultBundle == null)
                 defaultBundle = ResourceBundle.getBundle(defaultBundleName);
             return defaultBundle;
         }
         catch (MissingResourceException e) {
             throw new Error("Fatal: Resource for compiler is missing", e);
         }
     }
     private static String getLocalizedString(List<ResourceBundle> bundles,
                                              String key,
                                              Object... args) {
        String msg = null;
        for (List<ResourceBundle> l = bundles; l.nonEmpty() && msg == null; l = l.tail) {
            ResourceBundle rb = l.head;
            try {
                msg = rb.getString(key);
            }
            catch (MissingResourceException e) {
                // ignore, try other bundles in list
            }
        }
        if (msg == null) {
            msg = "compiler message file broken: key=" + key +
                " arguments={0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}";
        }
        return MessageFormat.format(msg, args);
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/util/JavacMessages.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/javac/util/JavacMessages.java