EchoClientHandler1.java

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you 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.github.nettybook.ch4;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOutboundHandlerAdapter;
import io.netty.channel.ChannelPromise;

import java.net.SocketAddress;

/**
 * Handler implementation for the echo client. It initiates the ping-pong
 * traffic between the echo client and server by sending the first message to
 * the server.
 */
public class EchoClientHandler1 extends ChannelOutboundHandlerAdapter {
    @Override
    public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise) throws Exception {
        System.out.println("connect 됨." + remoteAddress + "" + localAddress);
        super.connect(ctx, remoteAddress, localAddress, promise);
    };

    public void close(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
        System.out.println("close 됨.");
        super.close(ctx, promise);
    }

    public void deregister(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
        System.out.println("deregister 됨.");
        super.deregister(ctx, promise);
    }

    public void read(ChannelHandlerContext ctx) throws Exception {
        System.out.println("read 됨.");
        super.read(ctx);
    }

    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
        System.out.println("write 됨.");
        super.write(ctx, msg, promise);
    }

    public void flush(ChannelHandlerContext ctx) throws Exception {
        System.out.println("flush 됨.");
        super.flush(ctx);
    }

    @Override
    public void disconnect(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
        System.out.println("disconnect 됨.");
        super.disconnect(ctx, promise);
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        cause.printStackTrace();
        ctx.close();
    }
}