138 lines
4.2 KiB
Java
138 lines
4.2 KiB
Java
/*
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Copyright 2023 mark.nellemann@gmail.com
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package biz.nellemann.jnetperf;
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import java.io.IOException;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.net.SocketException;
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import java.net.UnknownHostException;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class UdpClient {
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final Logger log = LoggerFactory.getLogger(UdpClient.class);
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private final Statistics statistics;
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private final int port;
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private final InetAddress address;
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private final DatagramSocket socket;
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private final byte[] inBuffer = new byte[Payload.DEFAULT_LENGTH];
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private final int length;
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private final int packets;
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private final int runtime;
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public UdpClient(String hostname, int port, int length, int packets, int runtime) throws UnknownHostException, SocketException {
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log.info("UdpClient() - target: {}, port: {}", hostname, port);
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this.port = port;
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this.length = length;
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this.packets = packets;
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this.runtime = runtime;
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socket = new DatagramSocket();
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address = InetAddress.getByName(hostname);
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statistics = new Statistics();
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}
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private void send(Payload payload) throws IOException {
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DatagramPacket packet = new DatagramPacket(payload.getPayload(), payload.getLength(), address, port);
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socket.send(packet);
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statistics.transferPacket();
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statistics.transferBytes(payload.getLength());
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}
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private Payload receive() throws IOException {
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DatagramPacket packet = new DatagramPacket(inBuffer, Payload.DEFAULT_LENGTH);
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socket.receive(packet);
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return new Payload(inBuffer);
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}
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private void close() {
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socket.close();
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}
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public void start() throws IOException, InterruptedException {
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AtomicBoolean keepRunning = new AtomicBoolean(true);
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Thread shutdownHook = new Thread(() -> {
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keepRunning.set(false);
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System.out.println("Stopping jnetperf, please wait ...");
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});
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Runtime.getRuntime().addShutdownHook(shutdownHook);
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long sequence = 0;
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// Send handshake
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Payload payload = new Payload(PayloadType.HANDSHAKE.getValue(), Payload.DEFAULT_LENGTH, sequence++, packets);
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send(payload);
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payload = receive();
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if(payload.getType() != PayloadType.ACK.getValue()) {
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log.warn("No ACK!");
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return;
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}
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// Send data
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do {
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payload = new Payload(PayloadType.DATA.getValue(), length, sequence++, packets);
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send(payload);
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payload = receive();
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if(payload.getType() != PayloadType.ACK.getValue()) {
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log.warn("No ACK!");
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}
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statistics.tick();
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if (sequence > packets) {
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System.out.println("Max packets reached");
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keepRunning.set(false);
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}
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if(runtime > 0 && statistics.getRuntime() > runtime) {
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System.out.println("Max runtime reached");
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keepRunning.set(false);
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}
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} while (keepRunning.get());
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// Send end
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//Thread.sleep(100);
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payload = new Payload(PayloadType.END.getValue(), length, sequence++, packets);
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send(payload);
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payload = receive();
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statistics.ack();
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if(payload.getType() != PayloadType.ACK.getValue()) {
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log.warn("No ACK!");
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return;
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}
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Thread.sleep(100);
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close();
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statistics.printAverage();
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statistics.printSummary();
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}
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}
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