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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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java/pkg/java/util/PropertyResourceBundle.java+190−0
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1+/*
2+ * Copyright (c) 1996, 2006, 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+/*
27+ * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
28+ * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
29+ *
30+ * The original version of this source code and documentation
31+ * is copyrighted and owned by Taligent, Inc., a wholly-owned
32+ * subsidiary of IBM. These materials are provided under terms
33+ * of a License Agreement between Taligent and Sun. This technology
34+ * is protected by multiple US and International patents.
35+ *
36+ * This notice and attribution to Taligent may not be removed.
37+ * Taligent is a registered trademark of Taligent, Inc.
38+ */
39+
40+package java.util;
41+
42+import java.io.InputStream;
43+import java.io.Reader;
44+import java.io.IOException;
45+import sun.util.ResourceBundleEnumeration;
46+
47+/**
48+ * <code>PropertyResourceBundle</code> is a concrete subclass of
49+ * <code>ResourceBundle</code> that manages resources for a locale
50+ * using a set of static strings from a property file. See
51+ * {@link ResourceBundle ResourceBundle} for more information about resource
52+ * bundles.
53+ *
54+ * <p>
55+ * Unlike other types of resource bundle, you don't subclass
56+ * <code>PropertyResourceBundle</code>. Instead, you supply properties
57+ * files containing the resource data. <code>ResourceBundle.getBundle</code>
58+ * will automatically look for the appropriate properties file and create a
59+ * <code>PropertyResourceBundle</code> that refers to it. See
60+ * {@link ResourceBundle#getBundle(java.lang.String, java.util.Locale, java.lang.ClassLoader) ResourceBundle.getBundle}
61+ * for a complete description of the search and instantiation strategy.
62+ *
63+ * <p>
64+ * The following <a name="sample">example</a> shows a member of a resource
65+ * bundle family with the base name "MyResources".
66+ * The text defines the bundle "MyResources_de",
67+ * the German member of the bundle family.
68+ * This member is based on <code>PropertyResourceBundle</code>, and the text
69+ * therefore is the content of the file "MyResources_de.properties"
70+ * (a related <a href="ListResourceBundle.html#sample">example</a> shows
71+ * how you can add bundles to this family that are implemented as subclasses
72+ * of <code>ListResourceBundle</code>).
73+ * The keys in this example are of the form "s1" etc. The actual
74+ * keys are entirely up to your choice, so long as they are the same as
75+ * the keys you use in your program to retrieve the objects from the bundle.
76+ * Keys are case-sensitive.
77+ * <blockquote>
78+ * <pre>
79+ * # MessageFormat pattern
80+ * s1=Die Platte \"{1}\" enth&auml;lt {0}.
81+ *
82+ * # location of {0} in pattern
83+ * s2=1
84+ *
85+ * # sample disk name
86+ * s3=Meine Platte
87+ *
88+ * # first ChoiceFormat choice
89+ * s4=keine Dateien
90+ *
91+ * # second ChoiceFormat choice
92+ * s5=eine Datei
93+ *
94+ * # third ChoiceFormat choice
95+ * s6={0,number} Dateien
96+ *
97+ * # sample date
98+ * s7=3. M&auml;rz 1996
99+ * </pre>
100+ * </blockquote>
101+ *
102+ * <p>
103+ * <strong>Note:</strong> PropertyResourceBundle can be constructed either
104+ * from an InputStream or a Reader, which represents a property file.
105+ * Constructing a PropertyResourceBundle instance from an InputStream requires
106+ * that the input stream be encoded in ISO-8859-1. In that case, characters
107+ * that cannot be represented in ISO-8859-1 encoding must be represented by Unicode Escapes
108+ * as defined in section 3.3 of
109+ * <cite>The Java&trade; Language Specification</cite>
110+ * whereas the other constructor which takes a Reader does not have that limitation.
111+ *
112+ * @see ResourceBundle
113+ * @see ListResourceBundle
114+ * @see Properties
115+ * @since JDK1.1
116+ */
117+public class PropertyResourceBundle extends ResourceBundle {
118+ /**
119+ * Creates a property resource bundle from an {@link java.io.InputStream
120+ * InputStream}. The property file read with this constructor
121+ * must be encoded in ISO-8859-1.
122+ *
123+ * @param stream an InputStream that represents a property file
124+ * to read from.
125+ * @throws IOException if an I/O error occurs
126+ * @throws NullPointerException if <code>stream</code> is null
127+ */
128+ public PropertyResourceBundle (InputStream stream) throws IOException {
129+ Properties properties = new Properties();
130+ properties.load(stream);
131+ lookup = new HashMap(properties);
132+ }
133+
134+ /**
135+ * Creates a property resource bundle from a {@link java.io.Reader
136+ * Reader}. Unlike the constructor
137+ * {@link #PropertyResourceBundle(java.io.InputStream) PropertyResourceBundle(InputStream)},
138+ * there is no limitation as to the encoding of the input property file.
139+ *
140+ * @param reader a Reader that represents a property file to
141+ * read from.
142+ * @throws IOException if an I/O error occurs
143+ * @throws NullPointerException if <code>reader</code> is null
144+ * @since 1.6
145+ */
146+ public PropertyResourceBundle (Reader reader) throws IOException {
147+ Properties properties = new Properties();
148+ properties.load(reader);
149+ lookup = new HashMap(properties);
150+ }
151+
152+ // Implements java.util.ResourceBundle.handleGetObject; inherits javadoc specification.
153+ public Object handleGetObject(String key) {
154+ if (key == null) {
155+ throw new NullPointerException();
156+ }
157+ return lookup.get(key);
158+ }
159+
160+ /**
161+ * Returns an <code>Enumeration</code> of the keys contained in
162+ * this <code>ResourceBundle</code> and its parent bundles.
163+ *
164+ * @return an <code>Enumeration</code> of the keys contained in
165+ * this <code>ResourceBundle</code> and its parent bundles.
166+ * @see #keySet()
167+ */
168+ public Enumeration<String> getKeys() {
169+ ResourceBundle parent = this.parent;
170+ return new ResourceBundleEnumeration(lookup.keySet(),
171+ (parent != null) ? parent.getKeys() : null);
172+ }
173+
174+ /**
175+ * Returns a <code>Set</code> of the keys contained
176+ * <em>only</em> in this <code>ResourceBundle</code>.
177+ *
178+ * @return a <code>Set</code> of the keys contained only in this
179+ * <code>ResourceBundle</code>
180+ * @since 1.6
181+ * @see #keySet()
182+ */
183+ protected Set<String> handleKeySet() {
184+ return lookup.keySet();
185+ }
186+
187+ // ==================privates====================
188+
189+ private Map<String,Object> lookup;
190+}