com.vela.iot.active.netty.coap.CoAPClient.java Source code

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Here is the source code for com.vela.iot.active.netty.coap.CoAPClient.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.vela.iot.active.netty.coap;

import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.DatagramPacket;
import io.netty.channel.socket.nio.NioDatagramChannel;
import io.netty.util.CharsetUtil;

import java.net.InetSocketAddress;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A UDP broadcast client that asks for a quote of the moment (QOTM) to
 * {@link QuoteOfTheMomentServer}.
 *
 * Inspired by <a href=
 * "http://docs.oracle.com/javase/tutorial/networking/datagrams/clientServer.html"
 * >the official Java tutorial</a>.
 */
public final class CoAPClient {
    private static final Logger LOGGER = LoggerFactory.getLogger(CoAPClient.class);
    static final int PORT = Integer.parseInt(System.getProperty("port", "5683"));
    private static int REQ_NUM = 1000000;

    public static void main(String[] args) throws Exception {
        int bossCount = 1;
        if (args.length > 3) {
            bossCount = Integer.parseInt(args[3]);
        }
        int bufSize = 655350;
        if (args.length > 4) {
            bufSize = Integer.parseInt(args[4]);
        }
        EventLoopGroup group = new NioEventLoopGroup(bossCount);
        try {
            Bootstrap b = new Bootstrap();
            b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_RCVBUF, bufSize)
                    .option(ChannelOption.SO_SNDBUF, bufSize).handler(new CoAPClientHandler());
            Channel ch = b.bind(0).sync().channel();
            String ip = "192.168.2.185";
            if (args.length > 0) {
                ip = args[0];
            }
            if (args.length > 1) {
                REQ_NUM = Integer.parseInt(args[1]);
            }
            int concNum = 10;
            if (args.length > 2) {
                concNum = Integer.parseInt(args[2]);
            }
            InetSocketAddress add = new InetSocketAddress(ip, PORT);

            long start = System.nanoTime();
            ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("start", CharsetUtil.UTF_8), add));
            for (int i = 0; i < REQ_NUM; i++) {
                ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer(
                        "auth/gw/active?devSn=wZud4fM6SUuvvvBoFyGNYw&devKey=8I8LLGb7QaOZw6wgYInDrQ&devInfo=" + i,
                        CharsetUtil.UTF_8), add));
                if (i % concNum == 0)
                    Thread.sleep(0, 1);
            }
            ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("end", CharsetUtil.UTF_8), add));
            // LOGGER.info(":{},:{}", REQ_NUM, System.nanoTime() -
            // start);
            System.out.printf(":%d,:%d", REQ_NUM, System.nanoTime() - start);
            if (!ch.closeFuture().await(5000)) {
                System.err.println("QOTM request timed out.");
            }
        } finally {
            group.shutdownGracefully();
        }
    }
}

// class Sender implements Runnable {
// private static final Logger LOGGER = LoggerFactory
// .getLogger(Sender.class);
// @Override
// public void run() {
// try {
// NoblockJavaClient.senderDownLatch.countDown();
// service();
// } catch (IOException e) {
// e.printStackTrace();
// }
// }
//
// private void service() throws IOException {
// DatagramChannel sendChannel = DatagramChannel.open();
// sendChannel.configureBlocking(false);
// long start = System.nanoTime();
// ByteBuffer sendBuf = ByteBuffer.allocate(1024);
// for (int i = 0; i < NoblockJavaClient.REQ_NUM; i++) {
// long startTime = System.nanoTime();
// sendBuf.clear();
// sendBuf.put(NoblockJavaClient.sendByte);
// sendBuf.flip();
// long bufTime = System.nanoTime();
// int bytesSent = sendChannel.send(sendBuf, new InetSocketAddress(
// NoblockJavaClient.SERVER_HOST, NoblockJavaClient.SERVER_PORT));
// long sendTime = System.nanoTime();
// // System.out.printf(
// // "%d,bufTime%d,sendTime%d\n", i,
// // bufTime - startTime, sendTime - bufTime);
// }
// //LOGGER.info(":{},:{}", NoblockJavaClient.REQ_NUM,
// System.nanoTime() - start);
// System.out.printf(
// ":%d,:%d\n", NoblockJavaClient.REQ_NUM, System.nanoTime() - start);
// //sendChannel.close();
// }
// }