org.apache.jmeter.util.ShutdownClient Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.jmeter.util;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
/**
* Simple utility to send a shutdown message to a non-GUI instance of JMeter
*/
public class ShutdownClient {
public static final int UDP_PORT_DEFAULT = 4445;
public static void main(String[] args) throws IOException {
int port = UDP_PORT_DEFAULT;
if (args.length > 1){
port = Integer.parseInt(args[1]);
} else if (args.length == 0) {
throw new RuntimeException("Usage: command [port]");
}
String command = args[0];
System.out.println("Sending "+command+" request to port "+port);
try (DatagramSocket socket = new DatagramSocket()) {
byte[] buf = command.getBytes("ASCII");
InetAddress address = InetAddress.getByName("localhost");
DatagramPacket packet = new DatagramPacket(buf, buf.length, address,
port);
socket.send(packet);
}
}
}