Showing the changes to java/pkg/com/sun/rowset/JdbcRowSetResourceBundle.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2005, 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.rowset; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.util.*; | |
| 30 | + | |
| 31 | +/** | |
| 32 | + * This class is used to help in localization of resources, | |
| 33 | + * especially the exception strings. | |
| 34 | + * | |
| 35 | + * @author Amit Handa | |
| 36 | + */ | |
| 37 | + | |
| 38 | +public class JdbcRowSetResourceBundle implements Serializable { | |
| 39 | + | |
| 40 | + /** | |
| 41 | + * This <code>String</code> variable stores the location | |
| 42 | + * of the resource bundle location. | |
| 43 | + */ | |
| 44 | + private static String fileName; | |
| 45 | + | |
| 46 | + /** | |
| 47 | + * This variable will hold the <code>PropertyResourceBundle</code> | |
| 48 | + * of the text to be internationalized. | |
| 49 | + */ | |
| 50 | + private transient PropertyResourceBundle propResBundle; | |
| 51 | + | |
| 52 | + /** | |
| 53 | + * The constructor initializes to this object | |
| 54 | + * | |
| 55 | + */ | |
| 56 | + private static volatile JdbcRowSetResourceBundle jpResBundle; | |
| 57 | + | |
| 58 | + /** | |
| 59 | + * The variable which will represent the properties | |
| 60 | + * the suffix or extension of the resource bundle. | |
| 61 | + **/ | |
| 62 | + private static final String PROPERTIES = "properties"; | |
| 63 | + | |
| 64 | + /** | |
| 65 | + * The variable to represent underscore | |
| 66 | + **/ | |
| 67 | + private static final String UNDERSCORE = "_"; | |
| 68 | + | |
| 69 | + /** | |
| 70 | + * The variable which will represent dot | |
| 71 | + **/ | |
| 72 | + private static final String DOT = "."; | |
| 73 | + | |
| 74 | + /** | |
| 75 | + * The variable which will represent the slash. | |
| 76 | + **/ | |
| 77 | + private static final String SLASH = "/"; | |
| 78 | + | |
| 79 | + /** | |
| 80 | + * The variable where the default resource bundle will | |
| 81 | + * be placed. | |
| 82 | + **/ | |
| 83 | + private static final String PATH = "com/sun/rowset/RowSetResourceBundle"; | |
| 84 | + | |
| 85 | + /** | |
| 86 | + * The constructor which initializes the resource bundle. | |
| 87 | + * Note this is a private constructor and follows Singleton | |
| 88 | + * Design Pattern. | |
| 89 | + * | |
| 90 | + * @throws IOException if unable to load the ResourceBundle | |
| 91 | + * according to locale or the default one. | |
| 92 | + */ | |
| 93 | + private JdbcRowSetResourceBundle () throws IOException { | |
| 94 | + // Try to load the resource bundle according | |
| 95 | + // to the locale. Else if no bundle found according | |
| 96 | + // to the locale load the default. | |
| 97 | + | |
| 98 | + // In default case the default locale resource bundle | |
| 99 | + // should always be loaded else it | |
| 100 | + // will be difficult to throw appropriate | |
| 101 | + // exception string messages. | |
| 102 | + Locale locale = Locale.getDefault(); | |
| 103 | + | |
| 104 | + // Load appropriate bundle according to locale | |
| 105 | + propResBundle = (PropertyResourceBundle) ResourceBundle.getBundle(PATH, | |
| 106 | + locale, Thread.currentThread().getContextClassLoader()); | |
| 107 | + | |
| 108 | + } | |
| 109 | + | |
| 110 | + /** | |
| 111 | + * This method is used to get a handle to the | |
| 112 | + * initialized instance of this class. Note that | |
| 113 | + * at any time there is only one instance of this | |
| 114 | + * class initialized which will be returned. | |
| 115 | + * | |
| 116 | + * @throws IOException if unable to find the RowSetResourceBundle.properties | |
| 117 | + */ | |
| 118 | + public static JdbcRowSetResourceBundle getJdbcRowSetResourceBundle() | |
| 119 | + throws IOException { | |
| 120 | + | |
| 121 | + if(jpResBundle == null){ | |
| 122 | + synchronized(JdbcRowSetResourceBundle.class) { | |
| 123 | + if(jpResBundle == null){ | |
| 124 | + jpResBundle = new JdbcRowSetResourceBundle(); | |
| 125 | + } //end if | |
| 126 | + } //end synchronized block | |
| 127 | + } //end if | |
| 128 | + return jpResBundle; | |
| 129 | + } | |
| 130 | + | |
| 131 | + /** | |
| 132 | + * This method returns an enumerated handle of the keys | |
| 133 | + * which correspond to values translated to various locales. | |
| 134 | + * | |
| 135 | + * @return an enumeration of keys which have messages tranlated to | |
| 136 | + * corresponding locales. | |
| 137 | + */ | |
| 138 | + public Enumeration getKeys() { | |
| 139 | + return propResBundle.getKeys(); | |
| 140 | + } | |
| 141 | + | |
| 142 | + | |
| 143 | + /** | |
| 144 | + * This method takes the key as an argument and | |
| 145 | + * returns the corresponding value reading it | |
| 146 | + * from the Resource Bundle loaded earlier. | |
| 147 | + * | |
| 148 | + * @return value in locale specific language | |
| 149 | + * according to the key passed. | |
| 150 | + */ | |
| 151 | + public Object handleGetObject(String key) { | |
| 152 | + return propResBundle.handleGetObject(key); | |
| 153 | + } | |
| 154 | + | |
| 155 | + static final long serialVersionUID = 436199386225359954L; | |
| 156 | +} | |