| // 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 com.cloud.agent.dhcp; |
| |
| import java.io.IOException; |
| import java.net.DatagramPacket; |
| import java.net.DatagramSocket; |
| import java.net.InetAddress; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.utils.concurrency.NamedThreadFactory; |
| |
| public class DhcpProtocolParserServer extends Thread { |
| private static final Logger s_logger = Logger.getLogger(DhcpProtocolParserServer.class);; |
| protected ExecutorService _executor; |
| private int dhcpServerPort = 67; |
| private int bufferSize = 300; |
| protected boolean _running = false; |
| |
| public DhcpProtocolParserServer(int workers) { |
| _executor = new ThreadPoolExecutor(workers, 10 * workers, 1, TimeUnit.DAYS, new LinkedBlockingQueue<Runnable>(), new NamedThreadFactory("DhcpListener")); |
| _running = true; |
| } |
| |
| @Override |
| public void run() { |
| while (_running) { |
| try { |
| DatagramSocket dhcpSocket = new DatagramSocket(dhcpServerPort, InetAddress.getByAddress(new byte[] {0, 0, 0, 0})); |
| dhcpSocket.setBroadcast(true); |
| |
| while (true) { |
| byte[] buf = new byte[bufferSize]; |
| DatagramPacket dgp = new DatagramPacket(buf, buf.length); |
| dhcpSocket.receive(dgp); |
| } |
| } catch (IOException e) { |
| s_logger.debug(e.getMessage()); |
| } |
| } |
| } |
| } |