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 21 import java.util.List; 22 import java.util.Map; 23 import java.util.Map.Entry; 24 25 /** 26 * Implementation helper for {@link TestMapGenerator} for use with maps of 27 * strings. 28 * 29 * @author Chris Povirk 30 * @author Jared Levy 31 * @author George van den Driessche 32 */ 33 @GwtCompatible 34 public abstract class TestStringMapGenerator 35 implements TestMapGenerator<String, String> { 36 37 @Override samples()38 public SampleElements<Map.Entry<String, String>> samples() { 39 return new SampleElements<Map.Entry<String, String>>( 40 Helpers.mapEntry("one", "January"), 41 Helpers.mapEntry("two", "February"), 42 Helpers.mapEntry("three", "March"), 43 Helpers.mapEntry("four", "April"), 44 Helpers.mapEntry("five", "May") 45 ); 46 } 47 48 @Override create(Object... entries)49 public Map<String, String> create(Object... entries) { 50 @SuppressWarnings("unchecked") 51 Entry<String, String>[] array = new Entry[entries.length]; 52 int i = 0; 53 for (Object o : entries) { 54 @SuppressWarnings("unchecked") 55 Entry<String, String> e = (Entry<String, String>) o; 56 array[i++] = e; 57 } 58 return create(array); 59 } 60 create( Entry<String, String>[] entries)61 protected abstract Map<String, String> create( 62 Entry<String, String>[] entries); 63 64 @Override 65 @SuppressWarnings("unchecked") createArray(int length)66 public final Entry<String, String>[] createArray(int length) { 67 return new Entry[length]; 68 } 69 70 @Override createKeyArray(int length)71 public final String[] createKeyArray(int length) { 72 return new String[length]; 73 } 74 75 @Override createValueArray(int length)76 public final String[] createValueArray(int length) { 77 return new String[length]; 78 } 79 80 /** Returns the original element list, unchanged. */ 81 @Override order( List<Entry<String, String>> insertionOrder)82 public Iterable<Entry<String, String>> order( 83 List<Entry<String, String>> insertionOrder) { 84 return insertionOrder; 85 } 86 } 87