package com.thhy.staff.modules.biz.netty;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.websocket.Session;
import java.util.concurrent.CopyOnWriteArraySet;


public class NettyServerHandler extends ChannelInboundHandlerAdapter {

    private Logger logger = LoggerFactory.getLogger(NettyServerHandler.class);

    /**
     * 线程安全的无序的集合
     */
    public static final CopyOnWriteArraySet<ChannelHandlerContext> CTXS = new CopyOnWriteArraySet<>();

    /**
     * 客户端连接会触发
     */
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        CTXS.add(ctx);
        logger.info("Channel active......");
    }



    /**
     * 客户端发消息会触发
     */
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        logger.info("服务器收到消息: {}", msg.toString());
        ctx.write("recive success");
        ctx.flush();
    }

    /**
     * 发生异常触发
     */
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        CTXS.remove(ctx);
        logger.info("chucuo"+cause.getMessage());
        cause.printStackTrace();
        ctx.close();
    }

}