1 /*
2  * Copyright (C) 2016 The Android Open Source Project
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.android.tv.util;
18 
19 import java.util.Comparator;
20 
21 /** A comparator which runs multiple comparators sequentially. */
22 public class CompositeComparator<T> implements Comparator<T> {
23     private final Comparator<T>[] mComparators;
24 
25     @SafeVarargs
CompositeComparator(Comparator<T>.... comparators)26     public CompositeComparator(Comparator<T>... comparators) {
27         mComparators = comparators;
28     }
29 
30     @Override
compare(T lhs, T rhs)31     public int compare(T lhs, T rhs) {
32         for (Comparator<T> comparator : mComparators) {
33             int result = comparator.compare(lhs, rhs);
34             if (result != 0) {
35                 return result;
36             }
37         }
38         return 0;
39     }
40 }
41