Java example source code file (UdtNetty.java)

This example Java source code file (UdtNetty.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

atomicboolean, bootstrap, channelfuture, channelhandler, counter, echomessagehandler, exception, inetsocketaddress, internallogger, meter, net, network, nioeventloopgroup, override, string, threading, threads, udtnetty

The UdtNetty.java Java example source code

/*
 * 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 io.netty.test.udt.bench.xfer;

import com.yammer.metrics.Metrics;
import com.yammer.metrics.core.Counter;
import com.yammer.metrics.core.Meter;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.test.udt.util.CustomReporter;
import io.netty.test.udt.util.EchoMessageHandler;
import io.netty.test.udt.util.TrafficControl;
import io.netty.test.udt.util.UnitHelp;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

/**
 * perform two way netty send/recv
 */
public final class UdtNetty {

    private UdtNetty() {
    }

    static final InternalLogger log = InternalLoggerFactory.getInstance(UdtNetty.class);

    /** benchmark duration */
    static final int time = 10 * 60 * 1000;

    /** transfer chunk size */
    static final int size = 64 * 1024;

    static final Counter benchTime = Metrics.newCounter(UdtNetty.class,
            "bench time");

    static final Counter benchSize = Metrics.newCounter(UdtNetty.class,
            "bench size");

    static {
        benchTime.inc(time);
        benchSize.inc(size);
    }

    static final Meter rate = Metrics.newMeter(UdtNetty.class, "rate",
            "bytes", TimeUnit.SECONDS);

    static {
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                try {
                    TrafficControl.delay(0);
                } catch (final Exception e) {
                    log.error("", e);
                }
            }
        });
    }

    public static void main(final String[] args) throws Exception {

        log.info("init");
        TrafficControl.delay(0);

        final AtomicBoolean isOn = new AtomicBoolean(true);

        final InetSocketAddress addr1 = UnitHelp.localSocketAddress();
        final InetSocketAddress addr2 = UnitHelp.localSocketAddress();

        final ChannelHandler handler1 = new EchoMessageHandler(rate, size);
        final ChannelHandler handler2 = new EchoMessageHandler(null, size);

        final NioEventLoopGroup group1 = new NioEventLoopGroup(
                1, Executors.defaultThreadFactory(), NioUdtProvider.MESSAGE_PROVIDER);
        final NioEventLoopGroup group2 = new NioEventLoopGroup(
                1, Executors.defaultThreadFactory(), NioUdtProvider.MESSAGE_PROVIDER);

        final Bootstrap peerBoot1 = new Bootstrap();
        peerBoot1.group(group1)
                 .channelFactory(NioUdtProvider.MESSAGE_RENDEZVOUS)
                 .localAddress(addr1).remoteAddress(addr2).handler(handler1);

        final Bootstrap peerBoot2 = new Bootstrap();
        peerBoot2.group(group2)
                 .channelFactory(NioUdtProvider.MESSAGE_RENDEZVOUS)
                 .localAddress(addr2).remoteAddress(addr1).handler(handler2);

        final ChannelFuture peerFuture1 = peerBoot1.connect();
        final ChannelFuture peerFuture2 = peerBoot2.connect();

        CustomReporter.enable(3, TimeUnit.SECONDS);

        Thread.sleep(time);

        isOn.set(false);

        Thread.sleep(1000);

        peerFuture1.channel().close().sync();
        peerFuture2.channel().close().sync();

        Thread.sleep(1000);

        group1.shutdownGracefully();
        group2.shutdownGracefully();

        Metrics.defaultRegistry().shutdown();

        TrafficControl.delay(0);
        log.info("done");
    }

}