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 java.util.List; 21 import java.util.Map; 22 import java.util.Map.Entry; 23 24 /** 25 * Implementation helper for {@link TestMapGenerator} for use with maps of strings. 26 * 27 * @author Chris Povirk 28 * @author Jared Levy 29 * @author George van den Driessche 30 */ 31 @GwtCompatible 32 public abstract class TestStringMapGenerator implements TestMapGenerator<String, String> { 33 34 @Override samples()35 public SampleElements<Entry<String, String>> samples() { 36 return new SampleElements<>( 37 Helpers.mapEntry("one", "January"), 38 Helpers.mapEntry("two", "February"), 39 Helpers.mapEntry("three", "March"), 40 Helpers.mapEntry("four", "April"), 41 Helpers.mapEntry("five", "May")); 42 } 43 44 @Override create(Object... entries)45 public Map<String, String> create(Object... entries) { 46 @SuppressWarnings("unchecked") 47 Entry<String, String>[] array = new Entry[entries.length]; 48 int i = 0; 49 for (Object o : entries) { 50 @SuppressWarnings("unchecked") 51 Entry<String, String> e = (Entry<String, String>) o; 52 array[i++] = e; 53 } 54 return create(array); 55 } 56 create(Entry<String, String>[] entries)57 protected abstract Map<String, String> create(Entry<String, String>[] entries); 58 59 @Override 60 @SuppressWarnings("unchecked") createArray(int length)61 public final Entry<String, String>[] createArray(int length) { 62 return new Entry[length]; 63 } 64 65 @Override createKeyArray(int length)66 public final String[] createKeyArray(int length) { 67 return new String[length]; 68 } 69 70 @Override createValueArray(int length)71 public final String[] createValueArray(int length) { 72 return new String[length]; 73 } 74 75 /** Returns the original element list, unchanged. */ 76 @Override order(List<Entry<String, String>> insertionOrder)77 public Iterable<Entry<String, String>> order(List<Entry<String, String>> insertionOrder) { 78 return insertionOrder; 79 } 80 } 81