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;
18 
19 import com.google.common.annotations.GwtCompatible;
20 import com.google.common.collect.testing.SampleElements.Strings;
21 
22 import java.util.Collection;
23 import java.util.List;
24 
25 /**
26  * String creation for testing arbitrary collections.
27  *
28  * @author Jared Levy
29  */
30 @GwtCompatible
31 public abstract class TestStringCollectionGenerator
32     implements TestCollectionGenerator<String> {
33   @Override
34   public SampleElements<String> samples() {
35     return new Strings();
36   }
37 
38   @Override
39   public Collection<String> create(Object... elements) {
40     String[] array = new String[elements.length];
41     int i = 0;
42     for (Object e : elements) {
43       array[i++] = (String) e;
44     }
45     return create(array);
46   }
47 
48   protected abstract Collection<String> create(String[] elements);
49 
50   @Override
51   public String[] createArray(int length) {
52     return new String[length];
53   }
54 
55   /** Returns the original element list, unchanged. */
56   @Override
57   public List<String> order(List<String> insertionOrder) {
58     return insertionOrder;
59   }
60 }
61