com.heelenyc.research.netty.frame.delimiter.EchoClientHandler.java Source code

Introduction

Here is the source code for com.heelenyc.research.netty.frame.delimiter.EchoClientHandler.java

Source

/*
 * 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.heelenyc.research.netty.frame.delimiter;

import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

/**
 * @author lilinfeng
 * @date 2014214
 * @version 1.0
 */
public class EchoClientHandler extends ChannelHandlerAdapter {

    private int counter;

    static final String ECHO_REQ = "Hi, Lilinfeng. Welcome to Netty.$_";

    /**
     * Creates a client-side handler.
     */
    public EchoClientHandler() {
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) {
        // ByteBuf buf = UnpooledByteBufAllocator.DEFAULT.buffer(ECHO_REQ
        // .getBytes().length);
        // buf.writeBytes(ECHO_REQ.getBytes());
        for (int i = 0; i < 10; i++) {
            ctx.writeAndFlush(Unpooled.copiedBuffer(ECHO_REQ.getBytes()));
        }
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        System.out.println("This is " + ++counter + " times receive server : [" + msg + "]");
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        ctx.flush();
    }

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