1 /*
2 * Copyright 2020 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.ipfilter;
17
18 import java.net.InetSocketAddress;
19 import java.util.Comparator;
20
21 /**
22 * This comparator is only used for searching.
23 */
24 final class IpSubnetFilterRuleComparator implements Comparator<Object> {
25
26 static final IpSubnetFilterRuleComparator INSTANCE = new IpSubnetFilterRuleComparator();
27
28 private IpSubnetFilterRuleComparator() {
29 // Prevent outside initialization
30 }
31
32 @Override
33 public int compare(Object o1, Object o2) {
34 return ((IpSubnetFilterRule) o1).compareTo((InetSocketAddress) o2);
35 }
36 }