1/*
2 * Copyright (c) 2016, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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22 */
23
24/*
25 * @test
26 * @bug 8159420
27 * @summary Checks the proper execution of LanguageRange.parse() and
28 *          other LocaleMatcher methods when used in the locales like
29 *          Turkish, because the toLowerCase() method is invoked in the
30 *          parse() and other LocaleMatcher methods.
31 *          e.g. "HI-Deva".toLowerCase() in the Turkish locale returns
32 *          "h��-deva", where '��' is the LATIN SMALL LETTER DOTLESS I character
33 *          which is not allowed in the language ranges/tags.
34 * @compile -encoding utf-8 Bug8159420.java
35 * @run main Bug8159420
36 */
37
38import java.util.List;
39import java.util.Locale;
40import java.util.Locale.LanguageRange;
41import java.util.Locale.FilteringMode;
42import java.util.LinkedHashMap;
43import java.util.HashMap;
44import java.util.Iterator;
45import java.util.ArrayList;
46import static java.util.Locale.FilteringMode.EXTENDED_FILTERING;
47import static java.util.Locale.FilteringMode.AUTOSELECT_FILTERING;
48
49public class Bug8159420 {
50
51    static boolean err = false;
52
53    public static void main(String[] args) {
54
55        Locale origLocale = null;
56        try {
57
58            origLocale = Locale.getDefault();
59            Locale.setDefault(new Locale("tr", "TR"));
60            testParse();
61            testFilter(EXTENDED_FILTERING);
62            testFilter(AUTOSELECT_FILTERING);
63            testLookup();
64            testMapEquivalents();
65
66            if (err) {
67                throw new RuntimeException("[LocaleMatcher method(s) in turkish"
68                        + " locale failed]");
69            }
70
71        } finally {
72            Locale.setDefault(origLocale);
73        }
74
75    }
76
77    /* Before the fix, the testParse() method was throwing
78     * IllegalArgumentException in Turkish Locale
79     */
80    private static void testParse() {
81        String ranges = "HI-Deva, ja-hIrA-JP, RKI";
82        try {
83            LanguageRange.parse(ranges);
84        } catch (Exception ex) {
85            System.err.println("[testParse() failed on range string: "
86                    + ranges + "] due to "+ex);
87            err = true;
88        }
89    }
90
91    /* Before the fix, the testFilter() method was returning empty list in
92     * Turkish Locale
93     */
94    private static void testFilter(FilteringMode mode) {
95
96        String ranges = "hi-IN, itc-Ital";
97        String tags = "hi-IN, itc-Ital";
98        List<LanguageRange> priorityList = LanguageRange.parse(ranges);
99        List<Locale> tagList = generateLocales(tags);
100        String actualLocales = showLocales(Locale.filter(priorityList, tagList, mode));
101        String expectedLocales = "hi-IN, itc-Ital";
102
103        if (!expectedLocales.equals(actualLocales)) {
104            System.err.println("testFilter(" + mode + ") failed on language ranges:"
105                    + " [" + ranges + "] and language tags: [" + tags + "]");
106            err = true;
107        }
108    }
109
110    /* Before the fix, the testLookup() method was returning null in Turkish
111     * Locale
112     */
113    private static void testLookup() {
114        boolean error = false;
115        String ranges = "hi-IN, itc-Ital";
116        String tags = "hi-IN, itc-Ital";
117        List<LanguageRange> priorityList = LanguageRange.parse(ranges);
118        List<Locale> localeList = generateLocales(tags);
119        Locale actualLocale
120                = Locale.lookup(priorityList, localeList);
121        String actualLocaleString = "";
122
123        if (actualLocale != null) {
124            actualLocaleString = actualLocale.toLanguageTag();
125        } else {
126            error = true;
127        }
128
129        String expectedLocale = "hi-IN";
130
131        if (!expectedLocale.equals(actualLocaleString)) {
132            error = true;
133        }
134
135        if (error) {
136            System.err.println("testLookup() failed on language ranges:"
137                    + " [" + ranges + "] and language tags: [" + tags + "]");
138            err = true;
139        }
140
141    }
142
143    /* Before the fix, testMapEquivalents() method was returning only "hi-in"
144     * in Turkish Locale
145     */
146    private static void testMapEquivalents() {
147
148        String ranges = "HI-IN";
149        List<LanguageRange> priorityList = LanguageRange.parse(ranges);
150        HashMap<String, List<String>> map = new LinkedHashMap<>();
151        List<String> equivalentList = new ArrayList<>();
152        equivalentList.add("HI");
153        equivalentList.add("HI-Deva");
154        map.put("HI", equivalentList);
155
156        List<LanguageRange> expected = new ArrayList<>();
157        expected.add(new LanguageRange("hi-in"));
158        expected.add(new LanguageRange("hi-deva-in"));
159        List<LanguageRange> got
160                = LanguageRange.mapEquivalents(priorityList, map);
161
162        if (!areEqual(expected, got)) {
163            System.err.println("testMapEquivalents() failed");
164            err = true;
165        }
166
167    }
168
169    private static boolean areEqual(List<LanguageRange> expected,
170            List<LanguageRange> got) {
171
172        boolean error = false;
173        if (expected.equals(got)) {
174            return !error;
175        }
176
177        List<LanguageRange> cloneExpected = new ArrayList<>(expected);
178        cloneExpected.removeAll(got);
179        if (!cloneExpected.isEmpty()) {
180            error = true;
181            System.err.println("Found missing range(s): " + cloneExpected);
182        }
183
184        // not creating the 'got' clone as the list will not be used after this
185        got.removeAll(expected);
186        if (!got.isEmpty()) {
187            error = true;
188            System.err.println("Found extra range(s): " + got);
189        }
190        return !error;
191    }
192
193    private static List<Locale> generateLocales(String tags) {
194        if (tags == null) {
195            return null;
196        }
197
198        List<Locale> localeList = new ArrayList<>();
199        if (tags.equals("")) {
200            return localeList;
201        }
202        String[] t = tags.split(", ");
203        for (String tag : t) {
204            localeList.add(Locale.forLanguageTag(tag));
205        }
206        return localeList;
207    }
208
209    private static String showLocales(List<Locale> locales) {
210        StringBuilder sb = new StringBuilder();
211
212        Iterator<Locale> itr = locales.iterator();
213        if (itr.hasNext()) {
214            sb.append(itr.next().toLanguageTag());
215        }
216        while (itr.hasNext()) {
217            sb.append(", ");
218            sb.append(itr.next().toLanguageTag());
219        }
220
221        return sb.toString().trim();
222    }
223
224}
225