001/* 002 * Copyright (C) 2008 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 com.google.common.annotations.GwtCompatible; 020import com.google.common.collect.Multiset; 021import com.google.common.collect.testing.AnEnum; 022import com.google.common.collect.testing.SampleElements; 023import com.google.common.collect.testing.SampleElements.Enums; 024import java.util.Collections; 025import java.util.List; 026 027/** 028 * An abstract {@code TestMultisetGenerator} for generating multisets containing enum values. 029 * 030 * @author Jared Levy 031 */ 032@GwtCompatible 033public abstract class TestEnumMultisetGenerator implements TestMultisetGenerator<AnEnum> { 034 @Override 035 public SampleElements<AnEnum> samples() { 036 return new Enums(); 037 } 038 039 @Override 040 public Multiset<AnEnum> create(Object... elements) { 041 AnEnum[] array = new AnEnum[elements.length]; 042 int i = 0; 043 for (Object e : elements) { 044 array[i++] = (AnEnum) e; 045 } 046 return create(array); 047 } 048 049 protected abstract Multiset<AnEnum> create(AnEnum[] elements); 050 051 @Override 052 public AnEnum[] createArray(int length) { 053 return new AnEnum[length]; 054 } 055 056 /** Sorts the enums according to their natural ordering. */ 057 @Override 058 public List<AnEnum> order(List<AnEnum> insertionOrder) { 059 Collections.sort(insertionOrder); 060 return insertionOrder; 061 } 062}