67 lines
2.3 KiB
Java
67 lines
2.3 KiB
Java
/*
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* The MIT License (MIT)
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*
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* Copyright © 2020 xrv <xrg@live.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package io.github.ehlxr.did.common;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelFutureListener;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.net.SocketAddress;
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/**
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* @author ehlxr
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*/
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public class NettyUtil {
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private static final Logger logger = LoggerFactory.getLogger(NettyUtil.class);
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/**
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* 获取 Channel 的远程 IP 地址
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*/
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public static String parseRemoteAddr(final Channel channel) {
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if (null == channel) {
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return "";
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}
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SocketAddress remote = channel.remoteAddress();
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final String addr = remote != null ? remote.toString() : "";
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if (addr.length() > 0) {
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int index = addr.lastIndexOf("/");
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if (index >= 0) {
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return addr.substring(index + 1);
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}
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return addr;
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}
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return "";
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}
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public static void closeChannel(Channel channel) {
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final String addrRemote = parseRemoteAddr(channel);
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channel.close().addListener((ChannelFutureListener) future ->
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logger.info("closeChannel: close the connection to remote address[{}] result: {}",
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addrRemote, future.isSuccess()));
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}
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}
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