package com.example.netty.handlercfg;

import com.example.netty.websocketserver.websocketHandler.WebsocketNettyRequestHandler;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.stream.ChunkedWriteHandler;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;

@Component
public class NettyChildChannelHandler extends ChannelInitializer<SocketChannel>{

	@Resource(name = "websocketNettyServerHandler")
	private ChannelHandler webSocketServerHandler;
	@Resource(name = "websocketNettyRequestHandler")
	private WebsocketNettyRequestHandler websocketNettyRequestHandler;


	@Override
	protected void initChannel(SocketChannel ch) throws Exception {
		ch.pipeline().addLast("http-codec", new HttpServerCodec()); // HTTP编码解码器
		ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536)); // 把HTTP头、HTTP体拼成完整的HTTP请求
		ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler()); // 方便大文件传输，不过实质上都是短的文本数据
		ch.pipeline().addLast("websocket-handler",webSocketServerHandler);
		ch.pipeline().addLast("http-handler",websocketNettyRequestHandler);
	}

}