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      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
     26     public CompositeComparator(Comparator<T>... comparators) {
     27         mComparators = comparators;
     28     }
     29 
     30     @Override
     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