001/* 002 * Copyright (C) 2012 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package com.google.common.collect.testing.google; 018 019import static com.google.common.collect.testing.Helpers.mapEntry; 020 021import com.google.common.annotations.GwtCompatible; 022import com.google.common.collect.BiMap; 023import com.google.common.collect.testing.SampleElements; 024import java.util.List; 025import java.util.Map.Entry; 026import org.jspecify.annotations.NullMarked; 027 028/** 029 * Implementation helper for {@link TestBiMapGenerator} for use with bimaps of strings. 030 * 031 * @author Chris Povirk 032 * @author Jared Levy 033 * @author George van den Driessche 034 * @author Louis Wasserman 035 */ 036@GwtCompatible 037@NullMarked 038public abstract class TestStringBiMapGenerator implements TestBiMapGenerator<String, String> { 039 040 @Override 041 public SampleElements<Entry<String, String>> samples() { 042 return new SampleElements<>( 043 mapEntry("one", "January"), 044 mapEntry("two", "February"), 045 mapEntry("three", "March"), 046 mapEntry("four", "April"), 047 mapEntry("five", "May")); 048 } 049 050 @Override 051 public final BiMap<String, String> create(Object... entries) { 052 @SuppressWarnings("unchecked") 053 Entry<String, String>[] array = (Entry<String, String>[]) new Entry<?, ?>[entries.length]; 054 int i = 0; 055 for (Object o : entries) { 056 @SuppressWarnings("unchecked") 057 Entry<String, String> e = (Entry<String, String>) o; 058 array[i++] = e; 059 } 060 return create(array); 061 } 062 063 protected abstract BiMap<String, String> create(Entry<String, String>[] entries); 064 065 @Override 066 @SuppressWarnings("unchecked") 067 public final Entry<String, String>[] createArray(int length) { 068 return (Entry<String, String>[]) new Entry<?, ?>[length]; 069 } 070 071 @Override 072 public final String[] createKeyArray(int length) { 073 return new String[length]; 074 } 075 076 @Override 077 public final String[] createValueArray(int length) { 078 return new String[length]; 079 } 080 081 /** Returns the original element list, unchanged. */ 082 @Override 083 public Iterable<Entry<String, String>> order(List<Entry<String, String>> insertionOrder) { 084 return insertionOrder; 085 } 086}