1/*
2 * Copyright (c) 2013, 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.
18 *
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
21 * questions.
22 */
23
24import java.io.ByteArrayInputStream;
25import java.io.ByteArrayOutputStream;
26import java.io.IOException;
27import java.time.Month;
28import java.time.ZoneId;
29import java.time.ZoneOffset;
30import java.time.ZonedDateTime;
31import java.util.Locale;
32import java.util.Properties;
33import java.util.function.Supplier;
34import java.util.logging.Level;
35import java.util.logging.LogManager;
36import java.util.logging.LogRecord;
37import java.util.logging.XMLFormatter;
38
39/**
40 * @test
41 * @bug 8028185
42 * @summary XMLFormatter.format emits incorrect year (year + 1900)
43 * @author dfuchs
44 * @run main/othervm XMLFormatterDate
45 */
46public class XMLFormatterDate {
47
48    static final class TimeStamp {
49
50        final ZonedDateTime zdt;
51        TimeStamp(ZoneId zoneId) {
52            zdt = ZonedDateTime.now(zoneId);
53        }
54        int getYear() {
55            return zdt.getYear();
56        }
57        boolean isJanuaryFirst() {
58            return zdt.getMonth() == Month.JANUARY && zdt.getDayOfMonth() == 1;
59        }
60    }
61
62
63    /**
64     * Before the fix, JDK8 prints: {@code
65     * <record>
66     *   <date>3913-11-18T17:35:40</date>
67     *   <millis>1384792540403</millis>
68     *   <sequence>0</sequence>
69     *   <level>INFO</level>
70     *   <thread>1</thread>
71     *   <message>test</message>
72     * </record>
73     * }
74     * After the fix, it should print: {@code
75     * <record>
76     *   <date>2013-11-18T17:35:40</date>
77     *   <millis>1384792696519</millis>
78     *   <sequence>0</sequence>
79     *   <level>INFO</level>
80     *   <thread>1</thread>
81     *   <message>test</message>
82     * </record>
83     * }
84     * @param args the command line arguments
85     */
86    public static void main(String[] args) {
87        Locale locale = Locale.getDefault();
88        try {
89            Locale.setDefault(Locale.ENGLISH);
90
91            // Test with default format: by default date is in UTC.
92            System.out.println("Testing with UTC");
93            test(() -> new TimeStamp(ZoneOffset.UTC));
94
95            // Change LogManager configuration so that new
96            // XMLFormatter prints date in the pre Java 9 local zone format
97            try {
98                Properties props = new Properties();
99                props.setProperty("java.util.logging.XMLFormatter.useInstant", "false");
100                ByteArrayOutputStream baos = new ByteArrayOutputStream();
101                props.store(baos, "");
102                ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
103                LogManager.getLogManager().updateConfiguration(bais, (k) -> (o,n) -> n!=null?n:o);
104            } catch (IOException io) {
105                throw new RuntimeException(io);
106            }
107
108            // re test with the old format: date will be in the local time zone.
109            System.out.println("Testing with old format");
110            test(() -> new TimeStamp(ZoneId.systemDefault()));
111
112        } finally {
113            Locale.setDefault(locale);
114        }
115    }
116
117    static void test(Supplier<TimeStamp> timeStampSupplier) {
118
119        TimeStamp t1 = timeStampSupplier.get();
120        int year1 = t1.getYear();
121
122        LogRecord record = new LogRecord(Level.INFO, "test");
123        XMLFormatter formatter = new XMLFormatter();
124        final String formatted = formatter.format(record);
125        System.out.println(formatted);
126
127        final TimeStamp t2 = timeStampSupplier.get();
128        final int year2 = t2.getYear();
129        if (year2 < 1900) {
130            throw new Error("Invalid system year: " + year2);
131        }
132
133        final StringBuilder buf2 = new StringBuilder()
134                .append("<date>").append(year2).append("-");
135        if (!formatted.contains(buf2.toString())) {
136            StringBuilder buf1 = new StringBuilder()
137                    .append("<date>").append(year1).append("-");
138            if (formatted.contains(buf1) && year2 == year1 + 1
139                    && t2.isJanuaryFirst()) {
140                // Oh! The year just switched in the midst of the test...
141                System.out.println("Happy new year!");
142            } else {
143                throw new Error("Expected year " + year2
144                        + " not found in log:\n" + formatted);
145            }
146        }
147    }
148
149}
150