ImmutableAnnotationElement.java revision e2f00f0eba79723388f2152db7b68c64872d7eb3 
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
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29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.immutable;
33
34import com.google.common.collect.ImmutableList;
35import org.jf.dexlib2.immutable.value.ImmutableEncodedValue;
36import org.jf.dexlib2.iface.AnnotationElement;
37import org.jf.dexlib2.iface.value.EncodedValue;
38import org.jf.util.ImmutableListConverter;
39
40import javax.annotation.Nonnull;
41import java.util.List;
42
43public class ImmutableAnnotationElement implements AnnotationElement {
44    @Nonnull public final String name;
45    @Nonnull public final ImmutableEncodedValue value;
46
47    public ImmutableAnnotationElement(@Nonnull String name,
48                                      @Nonnull EncodedValue value) {
49        this.name = name;
50        this.value = ImmutableEncodedValue.of(value);
51    }
52
53    public ImmutableAnnotationElement(@Nonnull String name,
54                                      @Nonnull ImmutableEncodedValue value) {
55        this.name = name;
56        this.value = value;
57    }
58
59    public static ImmutableAnnotationElement of(AnnotationElement annotationElement) {
60        if (annotationElement instanceof ImmutableAnnotationElement) {
61            return (ImmutableAnnotationElement)annotationElement;
62        }
63        return new ImmutableAnnotationElement(
64                annotationElement.getName(),
65                annotationElement.getValue());
66    }
67
68    @Nonnull @Override public String getName() { return name; }
69    @Nonnull @Override public EncodedValue getValue() { return value; }
70
71    @Nonnull
72    public static ImmutableList<ImmutableAnnotationElement> immutableListOf(List<? extends AnnotationElement> list) {
73        return CONVERTER.convert(list);
74    }
75
76    private static final ImmutableListConverter<ImmutableAnnotationElement, AnnotationElement> CONVERTER =
77            new ImmutableListConverter<ImmutableAnnotationElement, AnnotationElement>() {
78                @Override
79                protected boolean isImmutable(AnnotationElement item) {
80                    return item instanceof ImmutableAnnotationElement;
81                }
82
83                @Override
84                protected ImmutableAnnotationElement makeImmutable(AnnotationElement item) {
85                    return ImmutableAnnotationElement.of(item);
86                }
87            };
88}
89