1 /*
2 * Copyright (C) 2008 The Guava Authors
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
17 package com.google.common.collect.testing.google;
18
19 import com.google.common.annotations.GwtCompatible;
20 import com.google.common.collect.Multiset;
21 import com.google.common.collect.testing.AnEnum;
22 import com.google.common.collect.testing.SampleElements;
23 import com.google.common.collect.testing.SampleElements.Enums;
24 import java.util.Collections;
25 import java.util.List;
26
27 /**
28 * An abstract {@code TestMultisetGenerator} for generating multisets containing enum values.
29 *
30 * @author Jared Levy
31 */
32 @GwtCompatible
33 public abstract class TestEnumMultisetGenerator implements TestMultisetGenerator<AnEnum> {
34 @Override
35 public SampleElements<AnEnum> samples() {
36 return new Enums();
37 }
38
39 @Override
40 public Multiset<AnEnum> create(Object... elements) {
41 AnEnum[] array = new AnEnum[elements.length];
42 int i = 0;
43 for (Object e : elements) {
44 array[i++] = (AnEnum) e;
45 }
46 return create(array);
47 }
48
49 protected abstract Multiset<AnEnum> create(AnEnum[] elements);
50
51 @Override
52 public AnEnum[] createArray(int length) {
53 return new AnEnum[length];
54 }
55
56 /** Sorts the enums according to their natural ordering. */
57 @Override
58 public List<AnEnum> order(List<AnEnum> insertionOrder) {
59 Collections.sort(insertionOrder);
60 return insertionOrder;
61 }
62 }