1 /* 2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.istack.internal.localization; 27 28 import java.text.MessageFormat; 29 import java.util.HashMap; 30 import java.util.Locale; 31 import java.util.MissingResourceException; 32 import java.util.ResourceBundle; 33 34 /** 35 * Localizes the {@link Localizable} into a message 36 * by using a configured {@link Locale}. 37 * 38 * @author WS Development Team 39 */ 40 public class Localizer { 41 42 private final Locale _locale; 43 private final HashMap<String, ResourceBundle> _resourceBundles; 44 45 public Localizer() { 46 this(Locale.getDefault()); 47 } 48 49 public Localizer(Locale l) { 50 _locale = l; 51 _resourceBundles = new HashMap<>(); 52 } 53 54 public Locale getLocale() { 55 return _locale; 56 } 57 58 public String localize(Localizable l) { 59 String key = l.getKey(); 60 if (key == Localizable.NOT_LOCALIZABLE) { 61 // this message is not localizable 62 return (String) l.getArguments()[0]; 63 } 64 65 String bundlename = l.getResourceBundleName(); 66 67 try { 68 ResourceBundle bundle = 69 (ResourceBundle) _resourceBundles.get(bundlename); 70 71 if (bundle == null) { 72 bundle = l.getResourceBundle(_locale); 73 if (bundle != null) { 74 _resourceBundles.put(bundlename, bundle); 75 } 76 } 77 78 if (bundle == null) { 79 try { 80 bundle = ResourceBundle.getBundle(bundlename, _locale); 81 } catch (MissingResourceException e) { 82 // work around a bug in the com.sun.enterprise.deployment.WebBundleArchivist: 83 // all files with an extension different from .class (hence all the .properties files) 84 // get copied to the top level directory instead of being in the package where they 85 // are defined 86 // so, since we can't find the bundle under its proper name, we look for it under 87 // the top-level package 88 89 int i = bundlename.lastIndexOf('.'); 90 if (i != -1) { 91 String alternateBundleName = 92 bundlename.substring(i + 1); 93 try { 94 bundle = 95 ResourceBundle.getBundle( 96 alternateBundleName, 97 _locale); 98 } catch (MissingResourceException e2) { 99 //try context classloader 100 try { 101 bundle = ResourceBundle.getBundle(bundlename, _locale, Thread.currentThread().getContextClassLoader()); 102 } catch (MissingResourceException e3) { 103 // give up 104 return getDefaultMessage(l); 105 } 106 107 } 108 } 109 } 110 111 _resourceBundles.put(bundlename, bundle); 112 } 113 114 if (bundle == null) { 115 return getDefaultMessage(l); 116 } 117 118 if (key == null) 119 key = "undefined"; 120 121 String msg; 122 try { 123 msg = bundle.getString(key); 124 } catch (MissingResourceException e) { 125 // notice that this may throw a MissingResourceException of its own (caught below) 126 msg = bundle.getString("undefined"); 127 } 128 129 // localize all arguments to the given localizable object 130 Object[] args = l.getArguments(); 131 for (int i = 0; i < args.length; ++i) { 132 if (args[i] instanceof Localizable) 133 args[i] = localize((Localizable) args[i]); 134 } 135 136 String message = MessageFormat.format(msg, args); 137 return message; 138 139 } catch (MissingResourceException e) { 140 return getDefaultMessage(l); 141 } 142 143 } 144 145 private String getDefaultMessage(Localizable l) { 146 String key = l.getKey(); 147 Object[] args = l.getArguments(); 148 StringBuilder sb = new StringBuilder(); 149 sb.append("[failed to localize] "); 150 sb.append(key); 151 if (args != null) { 152 sb.append('('); 153 for (int i = 0; i < args.length; ++i) { 154 if (i != 0) 155 sb.append(", "); 156 sb.append(String.valueOf(args[i])); 157 } 158 sb.append(')'); 159 } 160 return sb.toString(); 161 } 162 }