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Java example source code file (NioUdtByteRendezvousChannelTest.java)

This example Java source code file (NioUdtByteRendezvousChannelTest.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

abstractudttest, bootstrap, channelfuture, echobytehandler, exception, inetsocketaddress, internallogger, meter, net, network, nioeventloopgroup, nioudtbyterendezvouschanneltest, test, threading, threads

The NioUdtByteRendezvousChannelTest.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.nio;

import com.yammer.metrics.Metrics;
import com.yammer.metrics.core.Meter;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.udt.nio.NioUdtByteRendezvousChannel;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.test.udt.util.EchoByteHandler;
import io.netty.test.udt.util.UnitHelp;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import org.junit.Test;

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

import static org.junit.Assert.*;

public class NioUdtByteRendezvousChannelTest extends AbstractUdtTest {

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

    /**
     * verify channel meta data
     */
    @Test
    public void metadata() throws Exception {
        assertFalse(new NioUdtByteRendezvousChannel().metadata().hasDisconnect());
    }

    /**
     * verify basic echo byte rendezvous
     */
    @Test(timeout = 10 * 1000)
    public void basicEcho() throws Exception {

        final int messageSize = 64 * 1024;
        final int transferLimit = messageSize * 16;

        final Meter rate1 = Metrics.newMeter(
                NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes",
                TimeUnit.SECONDS);

        final Meter rate2 = Metrics.newMeter(
                NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes",
                TimeUnit.SECONDS);

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

        final EchoByteHandler handler1 = new EchoByteHandler(rate1, messageSize);
        final EchoByteHandler handler2 = new EchoByteHandler(rate2, messageSize);

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

        final Bootstrap boot1 = new Bootstrap();
        boot1.group(group1)
             .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS)
             .localAddress(addr1)
             .remoteAddress(addr2)
             .handler(handler1);

        final Bootstrap boot2 = new Bootstrap();
        boot2.group(group1)
             .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS)
             .localAddress(addr2)
             .remoteAddress(addr1)
             .handler(handler2);

        final ChannelFuture connectFuture1 = boot1.connect();
        final ChannelFuture connectFuture2 = boot2.connect();

        while (handler1.meter().count() < transferLimit
                && handler2.meter().count() < transferLimit) {

            log.info("progress : {} {}", handler1.meter().count(), handler2
                    .meter().count());

            Thread.sleep(1000);
        }

        connectFuture1.channel().close().sync();
        connectFuture2.channel().close().sync();

        log.info("handler1 : {}", handler1.meter().count());
        log.info("handler2 : {}", handler2.meter().count());

        assertTrue(handler1.meter().count() >= transferLimit);
        assertTrue(handler2.meter().count() >= transferLimit);

        assertEquals(handler1.meter().count(), handler2.meter().count());

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

        group1.terminationFuture().sync();
        group2.terminationFuture().sync();
    }
}

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