com.spotify.netty4.handler.codec.zmtp.benchmarks.ThroughputBenchmark.java Source code

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Here is the source code for com.spotify.netty4.handler.codec.zmtp.benchmarks.ThroughputBenchmark.java

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/*
 * Copyright (c) 2012-2015 Spotify AB
 *
 * Licensed 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.spotify.netty4.handler.codec.zmtp.benchmarks;

import com.spotify.netty4.handler.codec.zmtp.ZMTPCodec;
import com.spotify.netty4.handler.codec.zmtp.ZMTPHandshakeSuccess;
import com.spotify.netty4.handler.codec.zmtp.ZMTPMessage;
import com.spotify.netty4.util.BatchFlusher;

import java.net.InetSocketAddress;
import java.net.SocketAddress;

import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.util.ReferenceCountUtil;

import static com.google.common.base.Strings.repeat;
import static com.spotify.netty4.handler.codec.zmtp.ZMTPSocketType.DEALER;
import static com.spotify.netty4.handler.codec.zmtp.ZMTPSocketType.ROUTER;
import static io.netty.channel.ChannelOption.ALLOCATOR;

/**
 * A raw one-way throughput benchmark.
 */
public class ThroughputBenchmark {

    private static final InetSocketAddress ANY_PORT = new InetSocketAddress("127.0.0.1", 0);

    public static void main(final String... args) throws InterruptedException {
        final ProgressMeter meter = new ProgressMeter("messages");

        // Server
        final ServerBootstrap serverBootstrap = new ServerBootstrap()
                .group(new NioEventLoopGroup(1), new NioEventLoopGroup(1)).channel(NioServerSocketChannel.class)
                .childOption(ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .childHandler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(final NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast(ZMTPCodec.of(ROUTER));
                        ch.pipeline().addLast(new ServerHandler(meter));
                    }
                });
        final Channel server = serverBootstrap.bind(ANY_PORT).awaitUninterruptibly().channel();

        // Client
        final SocketAddress address = server.localAddress();
        final Bootstrap clientBootstrap = new Bootstrap().group(new NioEventLoopGroup(1))
                .channel(NioSocketChannel.class).option(ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .option(ChannelOption.MESSAGE_SIZE_ESTIMATOR, ByteBufSizeEstimator.INSTANCE)
                .handler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(final NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast(ZMTPCodec.of(DEALER));
                        ch.pipeline().addLast(new ClientHandler());
                    }
                });
        final Channel client = clientBootstrap.connect(address).awaitUninterruptibly().channel();

        // Run until client is closed
        client.closeFuture().await();
    }

    private static class ServerHandler extends ChannelInboundHandlerAdapter {

        private final ProgressMeter meter;

        public ServerHandler(final ProgressMeter meter) {
            this.meter = meter;
        }

        @Override
        public void channelRead(final ChannelHandlerContext ctx, final Object msg) throws Exception {
            ReferenceCountUtil.release(msg);
            meter.inc();
        }
    }

    private static class ClientHandler extends ChannelInboundHandlerAdapter {

        private static final int BATCH_SIZE = 128;

        private static final ZMTPMessage MESSAGE = ZMTPMessage.fromUTF8(repeat(".", 100));

        private BatchFlusher flusher;

        @Override
        public void channelRegistered(final ChannelHandlerContext ctx) throws Exception {
            this.flusher = new BatchFlusher(ctx.channel());
        }

        @Override
        public void userEventTriggered(final ChannelHandlerContext ctx, final Object evt) throws Exception {
            if (evt instanceof ZMTPHandshakeSuccess) {
                send(ctx);
            }
        }

        @Override
        public void channelWritabilityChanged(final ChannelHandlerContext ctx) throws Exception {
            send(ctx);
        }

        private void send(final ChannelHandlerContext ctx) {
            while (ctx.channel().isWritable()) {
                for (int i = 0; i < BATCH_SIZE; i++) {
                    ctx.write(MESSAGE.retain());
                }
                flusher.flush();
            }
        }
    }

    private static class ByteBufSizeEstimator implements MessageSizeEstimator, MessageSizeEstimator.Handle {

        public static final ByteBufSizeEstimator INSTANCE = new ByteBufSizeEstimator();

        @Override
        public Handle newHandle() {
            return this;
        }

        @Override
        public int size(final Object msg) {
            if (msg instanceof ByteBuf) {
                return ((ByteBuf) msg).readableBytes();
            }
            return 0;
        }
    }
}