| /* |
| * Copyright (c) 1996, 2015, 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. |
| */ |
| |
| /* |
| * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved |
| * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved |
| * |
| * The original version of this source code and documentation |
| * is copyrighted and owned by Taligent, Inc., a wholly-owned |
| * subsidiary of IBM. These materials are provided under terms |
| * of a License Agreement between Taligent and Sun. This technology |
| * is protected by multiple US and International patents. |
| * |
| * This notice and attribution to Taligent may not be removed. |
| * Taligent is a registered trademark of Taligent, Inc. |
| */ |
| |
| package java.util; |
| |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.IOException; |
| import java.nio.charset.MalformedInputException; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.charset.UnmappableCharacterException; |
| import java.security.AccessController; |
| import java.util.Locale; |
| import sun.security.action.GetPropertyAction; |
| import sun.util.PropertyResourceBundleCharset; |
| import sun.util.ResourceBundleEnumeration; |
| |
| /** |
| * <code>PropertyResourceBundle</code> is a concrete subclass of |
| * <code>ResourceBundle</code> that manages resources for a locale |
| * using a set of static strings from a property file. See |
| * {@link ResourceBundle ResourceBundle} for more information about resource |
| * bundles. |
| * |
| * <p> |
| * Unlike other types of resource bundle, you don't subclass |
| * <code>PropertyResourceBundle</code>. Instead, you supply properties |
| * files containing the resource data. <code>ResourceBundle.getBundle</code> |
| * will automatically look for the appropriate properties file and create a |
| * <code>PropertyResourceBundle</code> that refers to it. See |
| * {@link ResourceBundle#getBundle(java.lang.String, java.util.Locale, java.lang.ClassLoader) ResourceBundle.getBundle} |
| * for a complete description of the search and instantiation strategy. |
| * |
| * <p> |
| * The following <a name="sample">example</a> shows a member of a resource |
| * bundle family with the base name "MyResources". |
| * The text defines the bundle "MyResources_de", |
| * the German member of the bundle family. |
| * This member is based on <code>PropertyResourceBundle</code>, and the text |
| * therefore is the content of the file "MyResources_de.properties" |
| * (a related <a href="ListResourceBundle.html#sample">example</a> shows |
| * how you can add bundles to this family that are implemented as subclasses |
| * of <code>ListResourceBundle</code>). |
| * The keys in this example are of the form "s1" etc. The actual |
| * keys are entirely up to your choice, so long as they are the same as |
| * the keys you use in your program to retrieve the objects from the bundle. |
| * Keys are case-sensitive. |
| * <blockquote> |
| * <pre> |
| * # MessageFormat pattern |
| * s1=Die Platte \"{1}\" enthält {0}. |
| * |
| * # location of {0} in pattern |
| * s2=1 |
| * |
| * # sample disk name |
| * s3=Meine Platte |
| * |
| * # first ChoiceFormat choice |
| * s4=keine Dateien |
| * |
| * # second ChoiceFormat choice |
| * s5=eine Datei |
| * |
| * # third ChoiceFormat choice |
| * s6={0,number} Dateien |
| * |
| * # sample date |
| * s7=3. März 1996 |
| * </pre> |
| * </blockquote> |
| * |
| * <p> |
| * The implementation of a {@code PropertyResourceBundle} subclass must be |
| * thread-safe if it's simultaneously used by multiple threads. The default |
| * implementations of the non-abstract methods in this class are thread-safe. |
| * |
| * <p> |
| * <strong>Note:</strong> PropertyResourceBundle can be constructed either |
| * from an InputStream or a Reader, which represents a property file. |
| * Constructing a PropertyResourceBundle instance from an InputStream requires |
| * that the input stream be encoded in UTF-8. By default, if a |
| * {@link java.nio.charset.MalformedInputException} or an |
| * {@link java.nio.charset.UnmappableCharacterException} occurs on reading the |
| * input stream, then the PropertyResourceBundle instance resets to the state |
| * before the exception, re-reads the input stream in {@code ISO-8859-1}, and |
| * continues reading. If the system property |
| * {@code java.util.PropertyResourceBundle.encoding} is set to either |
| * "ISO-8859-1" or "UTF-8", the input stream is solely read in that encoding, |
| * and throws the exception if it encounters an invalid sequence. |
| * If "ISO-8859-1" is specified, characters that cannot be represented in |
| * ISO-8859-1 encoding must be represented by Unicode Escapes as defined in section |
| * 3.3 of <cite>The Java™ Language Specification</cite> |
| * whereas the other constructor which takes a Reader does not have that limitation. |
| * Other encoding values are ignored for this system property. |
| * |
| * @see ResourceBundle |
| * @see ListResourceBundle |
| * @see Properties |
| * @since 1.1 |
| */ |
| public class PropertyResourceBundle extends ResourceBundle { |
| |
| // Check whether the strict encoding is specified. |
| // The possible encoding is either "ISO-8859-1" or "UTF-8". |
| private static final String encoding = |
| GetPropertyAction |
| .getProperty("java.util.PropertyResourceBundle.encoding", "") |
| .toUpperCase(Locale.ROOT); |
| |
| /** |
| * Creates a property resource bundle from an {@link java.io.InputStream |
| * InputStream}. This constructor reads the property file in UTF-8 by default. |
| * If a {@link java.nio.charset.MalformedInputException} or an |
| * {@link java.nio.charset.UnmappableCharacterException} occurs on reading the |
| * input stream, then the PropertyResourceBundle instance resets to the state |
| * before the exception, re-reads the input stream in {@code ISO-8859-1} and |
| * continues reading. If the system property |
| * {@code java.util.PropertyResourceBundle.encoding} is set to either |
| * "ISO-8859-1" or "UTF-8", the input stream is solely read in that encoding, |
| * and throws the exception if it encounters an invalid sequence. Other |
| * encoding values are ignored for this system property. |
| * |
| * @param stream an InputStream that represents a property file |
| * to read from. |
| * @throws IOException if an I/O error occurs |
| * @throws NullPointerException if <code>stream</code> is null |
| * @throws IllegalArgumentException if {@code stream} contains a |
| * malformed Unicode escape sequence. |
| * @throws MalformedInputException if the system property |
| * {@code java.util.PropertyResourceBundle.encoding} is set to "UTF-8" |
| * and {@code stream} contains an invalid UTF-8 byte sequence. |
| * @throws UnmappableCharacterException if the system property |
| * {@code java.util.PropertyResourceBundle.encoding} is set to "UTF-8" |
| * and {@code stream} contains an unmappable UTF-8 byte sequence. |
| */ |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| public PropertyResourceBundle (InputStream stream) throws IOException { |
| this(new InputStreamReader(stream, |
| "ISO-8859-1".equals(encoding) ? |
| StandardCharsets.ISO_8859_1.newDecoder() : |
| new PropertyResourceBundleCharset("UTF-8".equals(encoding)).newDecoder())); |
| } |
| |
| /** |
| * Creates a property resource bundle from a {@link java.io.Reader |
| * Reader}. Unlike the constructor |
| * {@link #PropertyResourceBundle(java.io.InputStream) PropertyResourceBundle(InputStream)}, |
| * there is no limitation as to the encoding of the input property file. |
| * |
| * @param reader a Reader that represents a property file to |
| * read from. |
| * @throws IOException if an I/O error occurs |
| * @throws NullPointerException if <code>reader</code> is null |
| * @throws IllegalArgumentException if a malformed Unicode escape sequence appears |
| * from {@code reader}. |
| * @since 1.6 |
| */ |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| public PropertyResourceBundle (Reader reader) throws IOException { |
| Properties properties = new Properties(); |
| properties.load(reader); |
| lookup = new HashMap(properties); |
| } |
| |
| // Implements java.util.ResourceBundle.handleGetObject; inherits javadoc specification. |
| public Object handleGetObject(String key) { |
| if (key == null) { |
| throw new NullPointerException(); |
| } |
| return lookup.get(key); |
| } |
| |
| /** |
| * Returns an <code>Enumeration</code> of the keys contained in |
| * this <code>ResourceBundle</code> and its parent bundles. |
| * |
| * @return an <code>Enumeration</code> of the keys contained in |
| * this <code>ResourceBundle</code> and its parent bundles. |
| * @see #keySet() |
| */ |
| public Enumeration<String> getKeys() { |
| ResourceBundle parent = this.parent; |
| return new ResourceBundleEnumeration(lookup.keySet(), |
| (parent != null) ? parent.getKeys() : null); |
| } |
| |
| /** |
| * Returns a <code>Set</code> of the keys contained |
| * <em>only</em> in this <code>ResourceBundle</code>. |
| * |
| * @return a <code>Set</code> of the keys contained only in this |
| * <code>ResourceBundle</code> |
| * @since 1.6 |
| * @see #keySet() |
| */ |
| protected Set<String> handleKeySet() { |
| return lookup.keySet(); |
| } |
| |
| // ==================privates==================== |
| |
| private Map<String,Object> lookup; |
| } |