1/*
2 * Copyright (c) 2008, 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.beans.ExceptionListener;
25import java.beans.XMLDecoder;
26
27import java.io.ByteArrayInputStream;
28
29abstract class AbstractTest implements ExceptionListener {
30    public void exceptionThrown(Exception exception) {
31        throw new Error("unexpected exception", exception);
32    }
33
34    /**
35     * Validates the XML decoder for XML archive
36     * that defined in the public field of the subclass.
37     *
38     * @param decoder  the initialized XML decoder
39     * @throws Error if validation failed
40     */
41    protected abstract void validate(XMLDecoder decoder);
42
43    /**
44     * This is entry point to start testing.
45     *
46     * @param security  use {@code true} to start
47     *                  second pass in secure context
48     */
49    final void test(boolean security) {
50        byte[] array = getFieldValue("XML").getBytes(); // NON-NLS: the field name
51        ByteArrayInputStream input = new ByteArrayInputStream(array);
52        XMLDecoder decoder = new XMLDecoder(input);
53        decoder.setExceptionListener(this);
54        validate(decoder);
55        try {
56            throw new Error("unexpected object" + decoder.readObject());
57        } catch (ArrayIndexOutOfBoundsException exception) {
58            // expected exception
59        }
60        decoder.close();
61        if (security) {
62            System.setSecurityManager(new SecurityManager());
63            test(false);
64        }
65    }
66
67    private String getFieldValue(String field) {
68        try {
69            return getClass().getField(field).get(this).toString();
70        } catch (NoSuchFieldException exception) {
71            throw new Error("unexpected exception", exception);
72        } catch (IllegalAccessException exception) {
73            throw new Error("unexpected exception", exception);
74        }
75    }
76}
77