51 lines
1.4 KiB
Java
51 lines
1.4 KiB
Java
package biz.nellemann.jperf;
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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 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 DatagramSocket socket;
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private InetAddress address;
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private byte[] buf;
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public UdpClient() throws UnknownHostException, SocketException {
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log.info("UdpClient");
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socket = new DatagramSocket();
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address = InetAddress.getByName("localhost");
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}
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public void send(Datagram datagram) throws IOException {
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DatagramPacket packet = new DatagramPacket(datagram.getPayload(), datagram.getLength(), address, 4445);
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socket.send(packet);
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}
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public String sendEcho(String msg) throws IOException {
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log.info("send() - msg: {}", msg);
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buf = msg.getBytes();
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DatagramPacket packet = new DatagramPacket(buf, buf.length, address, 4445);
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socket.send(packet);
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packet = new DatagramPacket(buf, buf.length);
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socket.receive(packet);
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String received = new String( packet.getData(), 0, packet.getLength() );
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return received;
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}
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public void close() {
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socket.close();
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}
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}
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