com.github.herong.rpc.netty.protobuf.demo1.ProtobufClient.java Source code

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Here is the source code for com.github.herong.rpc.netty.protobuf.demo1.ProtobufClient.java

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/*
 * 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.herong.rpc.netty.protobuf.demo1;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;

import com.github.herong.rpc.protobuf.example.AddressBookProtos;
import com.github.herong.rpc.protobuf.example.AddressBookProtos.AddressBook;
import com.github.herong.rpc.protobuf.example.AddressBookProtos.Person;
import com.github.herong.rpc.protobuf.example.AddressBookProtos.Person.PhoneNumber;

/**
 * Echoes back any received data from a client.
 */
public class ProtobufClient {

    private final String host;
    private final int port;

    public ProtobufClient(String host, int port) {
        this.host = host;
        this.port = port;
    }

    public void run() throws Exception {
        // Configure the client.
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();
            b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline()

                                    // 
                                    .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                    // 
                                    .addLast("protobufDecoder",
                                            new ProtobufDecoder(AddressBookProtos.AddressBook.getDefaultInstance()))
                                    // 
                                    .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                    .addLast("protobufEncoder", new ProtobufEncoder())
                                    // 
                                    .addLast("handler", new ProtobufClientHandler());

                        }
                    });

            // Start the client.
            ChannelFuture f = b.connect(host, port).sync();

            sendMsg(f.channel());
            // Wait until the connection is closed.
            f.channel().closeFuture().sync();
        } finally {
            // Shut down the event loop to terminate all threads.
            group.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception {
        // Print usage if no argument is specified.
        if (args.length < 2) {
            System.err.println(
                    "Usage: " + ProtobufClient.class.getSimpleName() + " <host> <port> [<first message size>]");
            return;
        }

        // Parse options.
        final String host = args[0];
        final int port = Integer.parseInt(args[1]);

        new ProtobufClient(host, port).run();
    }

    public void sendMsg(Channel channel) {
        AddressBook.Builder builder = AddressBook.newBuilder();
        Person.Builder person = Person.newBuilder();

        person.setName("hr");
        person.setEmail("111111@163.com");
        person.setId(1);

        PhoneNumber.Builder phoneNum1 = Person.PhoneNumber.newBuilder();
        /*
         * PhoneNumber.Builder phoneNum2 = Person.PhoneNumber.newBuilder();
         * PhoneNumber.Builder phoneNum3 = Person.PhoneNumber.newBuilder();
         * PhoneNumber.Builder phoneNum4 = Person.PhoneNumber.newBuilder();
         */
        phoneNum1.setNumber("13111121231");
        phoneNum1.setType(Person.PhoneType.HOME);

        person.addPhone(phoneNum1);
        builder.addPerson(person);
        channel.writeAndFlush(builder.build());
    }

}