2 * Copyright (c) 2017 Ericsson India Global Services Pvt Ltd. 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.netvirt.vpnmanager.intervpnlink;
10 import java.util.Optional;
11 import javax.annotation.PreDestroy;
12 import javax.inject.Inject;
13 import javax.inject.Singleton;
14 import org.opendaylight.infrautils.utils.concurrent.Executors;
15 import org.opendaylight.mdsal.binding.api.DataBroker;
16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
17 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.IVpnLinkService;
18 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkCache;
19 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkDataComposite;
20 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.InterVpnLinkStates;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkState;
23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
28 * Class responsible for listening to changes in the State of an InterVpnLink,
29 * specially for when the InterVpnLink becomes active.
32 public class InterVpnLinkStateListener extends AbstractAsyncDataTreeChangeListener<InterVpnLinkState> {
34 private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkStateListener.class);
36 private final DataBroker dataBroker;
37 private final IVpnLinkService ivpnLinkService;
38 private final InterVpnLinkCache interVpnLinkCache;
41 public InterVpnLinkStateListener(final DataBroker dataBroker, final IVpnLinkService interVpnLinkService,
42 final InterVpnLinkCache interVpnLinkCache) {
43 super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(InterVpnLinkStates.class)
44 .child(InterVpnLinkState.class),
45 Executors.newListeningSingleThreadExecutor("InterVpnLinkStateListener", LOG));
46 this.dataBroker = dataBroker;
47 this.ivpnLinkService = interVpnLinkService;
48 this.interVpnLinkCache = interVpnLinkCache;
52 LOG.info("{} start", getClass().getSimpleName());
59 Executors.shutdownAndAwaitTermination(getExecutorService());
63 public void remove(InstanceIdentifier<InterVpnLinkState> key, InterVpnLinkState dataObjectModification) {
67 public void update(InstanceIdentifier<InterVpnLinkState> key, InterVpnLinkState before,
68 InterVpnLinkState after) {
69 if (before.getState() == InterVpnLinkState.State.Error && after.getState() == InterVpnLinkState.State.Active) {
70 Optional<InterVpnLinkDataComposite> optIVpnLink =
71 interVpnLinkCache.getInterVpnLinkByName(after.getInterVpnLinkName());
73 if (!optIVpnLink.isPresent()) {
74 LOG.warn("InterVpnLink became ACTIVE, but could not found its info in Cache");
75 interVpnLinkCache.addInterVpnLinkStateToCaches(after);
76 optIVpnLink = interVpnLinkCache.getInterVpnLinkByName(after.getInterVpnLinkName());
78 ivpnLinkService.handleStaticRoutes(optIVpnLink.get());
84 public void add(InstanceIdentifier<InterVpnLinkState> key, InterVpnLinkState dataObjectModification) {