1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17import java.io.ByteArrayInputStream;
18import java.io.ByteArrayOutputStream;
19import java.io.IOException;
20import java.io.ObjectInputStream;
21import java.io.ObjectOutputStream;
22import java.io.Serializable;
23
24/**
25 * Exercise serialization.
26 */
27public class Main {
28
29    public static void main(String[] args) {
30        testObjectSerialization();
31    }
32
33    static void testObjectSerialization() {
34        byte[] serialData;
35
36        try {
37            serialData = createStream();
38            checkStream(serialData);
39        } catch (IOException ioe) {
40            throw new RuntimeException(ioe);
41        }
42    }
43
44    static byte[] createStream() throws IOException {
45        ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
46        ObjectOutputStream objStream = new ObjectOutputStream(byteStream);
47
48        Sub sub = new Sub('X');
49        objStream.writeObject(sub);
50        Inner inner = new Inner(0xCAFEF00D);
51        objStream.writeObject(inner);
52        byte[] bytes = byteStream.toByteArray();
53
54        objStream.close();
55        byteStream.close();
56        return bytes;
57    }
58
59    static void checkStream(byte[] input) throws IOException {
60        ByteArrayInputStream byteStream = new ByteArrayInputStream(input);
61        ObjectInputStream objStream = new ObjectInputStream(byteStream);
62
63        Sub sub;
64        Inner inner;
65        try {
66            sub = (Sub) objStream.readObject();
67            inner = (Inner) objStream.readObject();
68        } catch (ClassNotFoundException cnfe) {
69            throw new RuntimeException(cnfe);
70        }
71
72        objStream.close();
73        byteStream.close();
74
75        sub.check();
76        inner.check();
77    }
78
79    static class Inner implements Serializable {
80        private static final long serialVersionUID = 319009;
81        private final int x;
82        public Inner (int x) {
83            this.x = x;
84        }
85
86        public void check() {
87            System.out.println("x=" + Integer.toHexString(x));
88        }
89    }
90}
91
92class Base implements Serializable {
93    private static final long serialVersionUID = 12345;
94
95    Boolean one;
96    Integer two;
97    String three;
98
99    public Base() {
100        one = true;
101        two = Integer.valueOf(2);
102        three = "three";
103    }
104}
105
106class Sub extends Base {
107    private static final long serialVersionUID = 54321;
108
109    Double four;
110    Float five;
111    private Byte six = 26;
112    Character seven = '7';
113    Short eight;
114    long nine;
115    public Character thing;
116
117    public Sub(char thing) {
118        four = 4.0;
119        five = 5.0f;
120        six = 6;
121        eight = 8;
122        nine = 9;
123        this.thing = thing;
124    }
125
126    public void check() {
127        System.out.println("one=" + one + " two=" + two + " three=" + three
128            + " four=" + four + " five=" + five + " six=" + six
129            + " seven=" + seven + " eight=" + eight + " nine=" + nine
130            + " thing=" + thing);
131    }
132}
133