openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/NeutronCacheUtils.java

   1 /*
   2  * Copyright (C) 2014 SDN Hub, LLC.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Authors : Srini Seetharaman
   9  */
  10
  11 package org.opendaylight.ovsdb.openstack.netvirt;
  12
  13 import org.opendaylight.controller.networkconfig.neutron.INeutronPortCRUD;
  14 import org.opendaylight.controller.networkconfig.neutron.NeutronPort;
  15 import org.opendaylight.controller.networkconfig.neutron.Neutron_IPs;
  16 import java.util.Iterator;
  17 import java.util.List;
  18
  19 public class NeutronCacheUtils {
  20
  21     /**
  22      * Look up in the NeutronPortsCRUD cache and return the MAC address for a corresponding IP address
  23      * @param ipAddr IP address of a member or VM
  24      * @return MAC address registered with that IP address
  25      */
  26     public static String getMacAddress(INeutronPortCRUD neutronPortsCache, String ipAddr) {
  27         if (ipAddr == null)
  28             return null;
  29
  30         List<Neutron_IPs> fixedIPs;
  31         Iterator<Neutron_IPs> fixedIPIterator;
  32         Neutron_IPs ip;
  33
  34         List<NeutronPort> allPorts = neutronPortsCache.getAllPorts();
  35         Iterator<NeutronPort> i = allPorts.iterator();
  36         while (i.hasNext()) {
  37             NeutronPort port = i.next();
  38             fixedIPs = port.getFixedIPs();
  39             if (fixedIPs != null && fixedIPs.size() > 0) {
  40                 fixedIPIterator = fixedIPs.iterator();
  41                 while (fixedIPIterator.hasNext()) {
  42                     ip = fixedIPIterator.next();
  43                     if (ip.getIpAddress().equals(ipAddr))
  44                         return port.getMacAddress();
  45                 }
  46             }
  47         }
  48         return null;
  49     }
  50 }