1/*
2 * Copyright (c) 2011, 2017, 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 */
23package org.graalvm.graphio;
24
25final class DefaultGraphTypes implements GraphTypes {
26    static final GraphTypes DEFAULT = new DefaultGraphTypes();
27
28    private DefaultGraphTypes() {
29    }
30
31    @Override
32    public Class<?> enumClass(Object enumValue) {
33        if (enumValue instanceof Enum<?>) {
34            return enumValue.getClass();
35        }
36        return null;
37    }
38
39    @Override
40    public int enumOrdinal(Object obj) {
41        if (obj instanceof Enum<?>) {
42            return ((Enum<?>) obj).ordinal();
43        }
44        return -1;
45    }
46
47    @SuppressWarnings("unchecked")
48    @Override
49    public String[] enumTypeValues(Object clazz) {
50        if (clazz instanceof Class<?>) {
51            Class<? extends Enum<?>> enumClass = (Class<? extends Enum<?>>) clazz;
52            Enum<?>[] constants = enumClass.getEnumConstants();
53            if (constants != null) {
54                String[] names = new String[constants.length];
55                for (int i = 0; i < constants.length; i++) {
56                    names[i] = constants[i].name();
57                }
58                return names;
59            }
60        }
61        return null;
62    }
63
64    @Override
65    public String typeName(Object clazz) {
66        if (clazz instanceof Class<?>) {
67            return ((Class<?>) clazz).getName();
68        }
69        return null;
70    }
71
72}
73