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 static com.google.common.base.Preconditions.checkNotNull; 20 21 import com.google.common.annotations.GwtCompatible; 22 import com.google.common.collect.ImmutableBiMap; 23 import com.google.common.collect.Maps; 24 import com.google.common.collect.testing.SampleElements; 25 import com.google.common.collect.testing.TestMapEntrySetGenerator; 26 import com.google.common.collect.testing.TestStringSetGenerator; 27 28 import java.util.Map; 29 import java.util.Map.Entry; 30 import java.util.Set; 31 32 /** 33 * Generators of various {@link com.google.common.collect.BiMap}s and derived 34 * collections. 35 * 36 * @author Jared Levy 37 * @author Hayward Chan 38 */ 39 @GwtCompatible 40 public class BiMapGenerators { 41 42 public static class ImmutableBiMapKeySetGenerator 43 extends TestStringSetGenerator { create(String[] elements)44 @Override protected Set<String> create(String[] elements) { 45 Map<String, Integer> map = Maps.newLinkedHashMap(); 46 for (int i = 0; i < elements.length; i++) { 47 map.put(elements[i], i); 48 } 49 return ImmutableBiMap.copyOf(map).keySet(); 50 } 51 } 52 53 public static class ImmutableBiMapValuesGenerator 54 extends TestStringSetGenerator { create(String[] elements)55 @Override protected Set<String> create(String[] elements) { 56 Map<Integer, String> map = Maps.newLinkedHashMap(); 57 for (int i = 0; i < elements.length; i++) { 58 map.put(i, elements[i]); 59 } 60 return ImmutableBiMap.copyOf(map).values(); 61 } 62 } 63 64 public static class ImmutableBiMapInverseEntrySetGenerator 65 extends TestMapEntrySetGenerator<String, String> { 66 ImmutableBiMapInverseEntrySetGenerator()67 public ImmutableBiMapInverseEntrySetGenerator() { 68 super(new SampleElements.Strings(), new SampleElements.Strings()); 69 } createFromEntries( Entry<String, String>[] entries)70 @Override public Set<Entry<String, String>> createFromEntries( 71 Entry<String, String>[] entries) { 72 Map<String, String> map = Maps.newLinkedHashMap(); 73 for (Entry<String, String> entry : entries) { 74 checkNotNull(entry); 75 map.put(entry.getValue(), entry.getKey()); 76 } 77 return ImmutableBiMap.copyOf(map).inverse().entrySet(); 78 } 79 } 80 81 public static class ImmutableBiMapInverseKeySetGenerator 82 extends TestStringSetGenerator { create(String[] elements)83 @Override protected Set<String> create(String[] elements) { 84 Map<Integer, String> map = Maps.newLinkedHashMap(); 85 for (int i = 0; i < elements.length; i++) { 86 map.put(i, elements[i]); 87 } 88 return ImmutableBiMap.copyOf(map).inverse().keySet(); 89 } 90 } 91 92 public static class ImmutableBiMapInverseValuesGenerator 93 extends TestStringSetGenerator { create(String[] elements)94 @Override protected Set<String> create(String[] elements) { 95 Map<String, Integer> map = Maps.newLinkedHashMap(); 96 for (int i = 0; i < elements.length; i++) { 97 map.put(elements[i], i); 98 } 99 return ImmutableBiMap.copyOf(map).inverse().values(); 100 } 101 } 102 103 public static class ImmutableBiMapEntrySetGenerator 104 extends TestMapEntrySetGenerator<String, String> { 105 ImmutableBiMapEntrySetGenerator()106 public ImmutableBiMapEntrySetGenerator() { 107 super(new SampleElements.Strings(), new SampleElements.Strings()); 108 } createFromEntries( Entry<String, String>[] entries)109 @Override public Set<Entry<String, String>> createFromEntries( 110 Entry<String, String>[] entries) { 111 Map<String, String> map = Maps.newLinkedHashMap(); 112 for (Entry<String, String> entry : entries) { 113 checkNotNull(entry); 114 map.put(entry.getKey(), entry.getValue()); 115 } 116 return ImmutableBiMap.copyOf(map).entrySet(); 117 } 118 } 119 } 120