1 /* 2 * Copyright (C) 2009 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 static com.google.common.collect.testing.Helpers.orderEntriesByKey; 20 21 import com.google.common.annotations.GwtCompatible; 22 23 import java.util.List; 24 import java.util.Map; 25 import java.util.Map.Entry; 26 27 /** 28 * Implementation helper for {@link TestMapGenerator} for use with enum maps. 29 * 30 * @author Kevin Bourrillion 31 */ 32 @GwtCompatible 33 public abstract class TestEnumMapGenerator 34 implements TestMapGenerator<AnEnum, String> { 35 36 @Override 37 public SampleElements<Entry<AnEnum, String>> samples() { 38 return new SampleElements<Entry<AnEnum, String>>( 39 Helpers.mapEntry(AnEnum.A, "January"), 40 Helpers.mapEntry(AnEnum.B, "February"), 41 Helpers.mapEntry(AnEnum.C, "March"), 42 Helpers.mapEntry(AnEnum.D, "April"), 43 Helpers.mapEntry(AnEnum.E, "May") 44 ); 45 } 46 47 @Override 48 public final Map<AnEnum, String> create(Object... entries) { 49 @SuppressWarnings("unchecked") 50 Entry<AnEnum, String>[] array = new Entry[entries.length]; 51 int i = 0; 52 for (Object o : entries) { 53 @SuppressWarnings("unchecked") 54 Entry<AnEnum, String> e = (Entry<AnEnum, String>) o; 55 array[i++] = e; 56 } 57 return create(array); 58 } 59 60 protected abstract Map<AnEnum, String> create( 61 Entry<AnEnum, String>[] entries); 62 63 @Override 64 @SuppressWarnings("unchecked") 65 public final Entry<AnEnum, String>[] createArray(int length) { 66 return new Entry[length]; 67 } 68 69 @Override 70 public final AnEnum[] createKeyArray(int length) { 71 return new AnEnum[length]; 72 } 73 74 @Override 75 public final String[] createValueArray(int length) { 76 return new String[length]; 77 } 78 79 /** Returns the elements sorted in natural order. */ 80 @Override 81 public Iterable<Entry<AnEnum, String>> order( 82 List<Entry<AnEnum, String>> insertionOrder) { 83 return orderEntriesByKey(insertionOrder); 84 } 85 } 86
