applications/topology-lldp-discovery/src/main/java/org/opendaylight/openflowplugin/applications/topology/lldp/LLDPDiscoveryProvider.java

   1 /**
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   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 package org.opendaylight.openflowplugin.applications.topology.lldp;
   9
  10 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  11 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
  12 import org.opendaylight.openflowplugin.applications.topology.lldp.utils.LLDPDiscoveryUtils;
  13 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  14 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 public class LLDPDiscoveryProvider implements AutoCloseable {
  19     private static final Logger LOG = LoggerFactory.getLogger(LLDPDiscoveryProvider.class);
  20     private DataProviderService dataService;
  21     private NotificationProviderService notificationService;
  22
  23     private ListenerRegistration<NotificationListener> listenerRegistration;
  24     private LLDPLinkAger lldpLinkAger;
  25
  26     public DataProviderService getDataService() {
  27         return this.dataService;
  28     }
  29
  30     public void setDataService(final DataProviderService dataService) {
  31         this.dataService = dataService;
  32     }
  33
  34     public NotificationProviderService getNotificationService() {
  35         return this.notificationService;
  36     }
  37
  38     public void setNotificationService(final NotificationProviderService notificationService) {
  39         this.notificationService = notificationService;
  40     }
  41
  42     public void start() {
  43         lldpLinkAger = new LLDPLinkAger(LLDPDiscoveryUtils.LLDP_INTERVAL, LLDPDiscoveryUtils.LLDP_EXPIRATION_TIME);
  44         lldpLinkAger.setNotificationService(notificationService);
  45
  46         LLDPDiscoveryListener committer = new LLDPDiscoveryListener(notificationService);
  47         committer.setLldpLinkAger(lldpLinkAger);
  48
  49         ListenerRegistration<NotificationListener> registerNotificationListener =
  50                 notificationService.registerNotificationListener(committer);
  51         this.listenerRegistration = registerNotificationListener;
  52         LOG.info("LLDPDiscoveryListener Started.");
  53     }
  54
  55     public void close() {
  56         try {
  57             LOG.info("LLDPDiscoveryListener stopped.");
  58             if (this.listenerRegistration!=null) {
  59                 this.listenerRegistration.close();
  60             }
  61             lldpLinkAger.close();
  62         } catch (Exception e) {
  63             throw new Error(e);
  64         }
  65     }
  66 }