1 /* 2 * Copyright (c) 1997, 2010, 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 _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 String bundlename = l.getResourceBundleName(); 65 66 try { 67 ResourceBundle bundle = 68 (ResourceBundle) _resourceBundles.get(bundlename); 69 70 if (bundle == null) { 71 try { 72 bundle = ResourceBundle.getBundle(bundlename, _locale); 73 } catch (MissingResourceException e) { 74 // work around a bug in the com.sun.enterprise.deployment.WebBundleArchivist: 75 // all files with an extension different from .class (hence all the .properties files) 76 // get copied to the top level directory instead of being in the package where they 77 // are defined 78 // so, since we can't find the bundle under its proper name, we look for it under 79 // the top-level package 80 81 int i = bundlename.lastIndexOf('.'); 82 if (i != -1) { 83 String alternateBundleName = 84 bundlename.substring(i + 1); 85 try { 86 bundle = 87 ResourceBundle.getBundle( 88 alternateBundleName, 89 _locale); 90 } catch (MissingResourceException e2) { 91 // give up 92 return getDefaultMessage(l); 93 } 94 } 95 } 96 97 _resourceBundles.put(bundlename, bundle); 98 } 99 100 if (bundle == null) { 101 return getDefaultMessage(l); 102 } 103 104 if (key == null) 105 key = "undefined"; 106 107 String msg; 108 try { 109 msg = bundle.getString(key); 110 } catch (MissingResourceException e) { 111 // notice that this may throw a MissingResourceException of its own (caught below) 112 msg = bundle.getString("undefined"); 113 } 114 115 // localize all arguments to the given localizable object 116 Object[] args = l.getArguments(); 117 for (int i = 0; i < args.length; ++i) { 118 if (args[i] instanceof Localizable) 119 args[i] = localize((Localizable) args[i]); 120 } 121 122 String message = MessageFormat.format(msg, args); 123 return message; 124 125 } catch (MissingResourceException e) { 126 return getDefaultMessage(l); 127 } 128 129 } 130 131 private String getDefaultMessage(Localizable l) { 132 String key = l.getKey(); 133 Object[] args = l.getArguments(); 134 StringBuilder sb = new StringBuilder(); 135 sb.append("[failed to localize] "); 136 sb.append(key); 137 if (args != null) { 138 sb.append('('); 139 for (int i = 0; i < args.length; ++i) { 140 if (i != 0) 141 sb.append(", "); 142 sb.append(String.valueOf(args[i])); 143 } 144 sb.append(')'); 145 } 146 return sb.toString(); 147 } 148 149 }