1/*
2 * Copyright 2012, Google Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.base;
33
34import com.google.common.primitives.Ints;
35import org.jf.dexlib2.iface.Annotation;
36import org.jf.util.CollectionUtils;
37
38import java.util.Comparator;
39
40public abstract class BaseAnnotation implements Annotation {
41    @Override
42    public int hashCode() {
43        int hashCode = getVisibility();
44        hashCode = hashCode*31 + getType().hashCode();
45        return hashCode*31 + getElements().hashCode();
46    }
47
48    @Override
49    public boolean equals(Object o) {
50        if (o instanceof Annotation) {
51            Annotation other = (Annotation)o;
52            return (getVisibility() == other.getVisibility()) &&
53                   getType().equals(other.getType()) &&
54                   getElements().equals(other.getElements());
55        }
56        return false;
57    }
58
59    @Override
60    public int compareTo(Annotation o) {
61        int res = Ints.compare(getVisibility(), o.getVisibility());
62        if (res != 0) return res;
63        res = getType().compareTo(o.getType());
64        if (res != 0) return res;
65        return CollectionUtils.compareAsSet(getElements(), o.getElements());
66    }
67
68    public static final Comparator<? super Annotation> BY_TYPE = new Comparator<Annotation>() {
69        @Override
70        public int compare(Annotation annotation1, Annotation annotation2) {
71            return annotation1.getType().compareTo(annotation2.getType());
72        }
73    };
74}
75