com.codingapi.txlcn.txmsg.netty.handler.RpcCmdDecoder Maven / Gradle / Ivy

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/*
 * Copyright 2017-2019 CodingApi .
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.codingapi.txlcn.txmsg.netty.handler;

import com.codingapi.txlcn.txmsg.listener.HeartbeatListener;
import com.codingapi.txlcn.txmsg.netty.bean.NettyRpcCmd;
import com.codingapi.txlcn.txmsg.netty.bean.RpcContent;
import com.codingapi.txlcn.txmsg.MessageConstants;
import com.codingapi.txlcn.txmsg.netty.em.NettyType;
import com.codingapi.txlcn.txmsg.netty.impl.NettyContext;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;


/**
 * Description:
 * Company: CodingApi
 * Date: 2018/12/10
 *
 * @author ujued
 */
@ChannelHandler.Sharable
@Slf4j
@Component
public class RpcCmdDecoder extends SimpleChannelInboundHandler {

    @Autowired
    private HeartbeatListener heartbeatListener;

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, NettyRpcCmd cmd) {
        String key = cmd.getKey();
        log.debug("cmd->{}", cmd);

        //心态数据包直接响应
        if (cmd.getMsg() != null && MessageConstants.ACTION_HEART_CHECK.equals(cmd.getMsg().getAction())) {
            if (NettyContext.currentType().equals(NettyType.client)) {
                //设置值
                heartbeatListener.onTcReceivedHeart(cmd);
                ctx.writeAndFlush(cmd);
                return;
            } else {
                heartbeatListener.onTmReceivedHeart(cmd);
                return;
            }
        }

        //需要响应的数据包
        if (!StringUtils.isEmpty(key)) {
            RpcContent rpcContent = cmd.loadRpcContent();
            if (rpcContent != null) {
                log.debug("got response message[Netty Handler]");
                rpcContent.setRes(cmd.getMsg());
                rpcContent.signal();
            } else {
                ctx.fireChannelRead(cmd);
            }
        } else {
            ctx.fireChannelRead(cmd);
        }
    }
}