2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.openflowplugin.applications.topology.lldp;
10 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
11 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipService;
12 import org.opendaylight.openflowplugin.applications.topology.lldp.utils.LLDPDiscoveryUtils;
13 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkDiscovered;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkDiscoveredBuilder;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
20 import org.slf4j.Logger;
21 import org.slf4j.LoggerFactory;
23 public class LLDPDiscoveryListener implements PacketProcessingListener {
24 private static final Logger LOG = LoggerFactory.getLogger(LLDPDiscoveryListener.class);
26 private final LLDPLinkAger lldpLinkAger;
27 private final NotificationProviderService notificationService;
28 private final EntityOwnershipService eos;
31 public LLDPDiscoveryListener(final NotificationProviderService notificationService, final LLDPLinkAger lldpLinkAger,
32 final EntityOwnershipService entityOwnershipService) {
33 this.notificationService = notificationService;
34 this.lldpLinkAger = lldpLinkAger;
35 this.eos = entityOwnershipService;
39 public void onPacketReceived(PacketReceived lldp) {
40 NodeConnectorRef src = LLDPDiscoveryUtils.lldpToNodeConnectorRef(lldp.getPayload(), true);
42 NodeKey nodeKey = src.getValue().firstKeyOf(Node.class);
43 LOG.debug("LLDP packet received for node {}", nodeKey);
44 if (nodeKey != null) {
45 LinkDiscoveredBuilder ldb = new LinkDiscoveredBuilder();
46 ldb.setDestination(lldp.getIngress());
47 ldb.setSource(new NodeConnectorRef(src));
48 LinkDiscovered ld = ldb.build();
51 if (LLDPDiscoveryUtils.isEntityOwned(this.eos, nodeKey.getId().getValue())) {
52 LOG.debug("Publish add event for link {}", ld);
53 notificationService.publish(ld);
55 LOG.trace("Skip publishing the add event for link because controller is non-owner of the " +
56 "node {}. Link : {}", nodeKey.getId().getValue(), ld);
59 LOG.debug("LLDP packet ignored. Unable to extract node-key from source node-connector reference.");