2 * Copyright (c) 2015 - 2016 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.vpnservice.neutronvpn;
11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
12 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
13 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
15 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.Routers;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.Router;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.router.Interfaces;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.vpnmaps.VpnMap;
22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import java.util.ArrayList;
28 import java.util.Iterator;
29 import java.util.List;
32 public class NeutronRouterChangeListener extends AbstractDataChangeListener<Router> implements AutoCloseable {
33 private static final Logger LOG = LoggerFactory.getLogger(NeutronRouterChangeListener.class);
35 private ListenerRegistration<DataChangeListener> listenerRegistration;
36 private final DataBroker broker;
37 private NeutronvpnManager nvpnManager;
40 public NeutronRouterChangeListener(final DataBroker db, NeutronvpnManager nVpnMgr) {
43 nvpnManager = nVpnMgr;
48 public void close() throws Exception {
49 if (listenerRegistration != null) {
51 listenerRegistration.close();
52 } catch (final Exception e) {
53 LOG.error("Error when cleaning up DataChangeListener.", e);
55 listenerRegistration = null;
57 LOG.info("N_Router listener Closed");
61 private void registerListener(final DataBroker db) {
63 listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
64 InstanceIdentifier.create(Neutron.class).child(Routers.class).child(Router.class),
65 NeutronRouterChangeListener.this, DataChangeScope.SUBTREE);
66 } catch (final Exception e) {
67 LOG.error("Neutron Manager Router DataChange listener registration fail!", e);
68 throw new IllegalStateException("Neutron Manager Router DataChange listener registration failed.", e);
73 protected void add(InstanceIdentifier<Router> identifier, Router input) {
74 if (LOG.isTraceEnabled()) {
75 LOG.trace("Adding Router : key: " + identifier + ", value=" + input);
77 // Create internal VPN
78 nvpnManager.createL3Vpn(input.getUuid(), null, null, null, null, null, input.getUuid(), null);
82 protected void remove(InstanceIdentifier<Router> identifier, Router input) {
83 if (LOG.isTraceEnabled()) {
84 LOG.trace("Removing router : key: " + identifier + ", value=" + input);
86 // check if this router has internal-VPN
87 Uuid routerId = input.getUuid();
88 VpnMap vpnmap = NeutronvpnUtils.getVpnMap(broker, routerId);
90 // if yes, remove corresponding internal vpn
91 LOG.trace("removing internal-vpn for router {}", routerId);
92 nvpnManager.removeL3Vpn(routerId);
94 // if not, it is associated with some VPN
95 // remove VPN-router association
96 Uuid vpnId = NeutronvpnUtils.getVpnForRouter(broker, routerId);
97 LOG.trace("dissociating router {} from vpn {}", routerId, vpnId);
98 nvpnManager.dissociateRouterFromVpn(vpnId, routerId);
104 protected void update(InstanceIdentifier<Router> identifier, Router original, Router update) {
105 if (LOG.isTraceEnabled()) {
106 LOG.trace("Updating Router : key: " + identifier + ", original value=" + original + ", update value=" +
109 Uuid routerId = update.getUuid();
110 Uuid vpnId = NeutronvpnUtils.getVpnForRouter(broker, routerId);
111 List<Interfaces> oldInterfaces = (original.getInterfaces() != null) ? original.getInterfaces() : new
112 ArrayList<Interfaces>();
113 List<Interfaces> newInterfaces = (update.getInterfaces() != null) ? update.getInterfaces() : new
114 ArrayList<Interfaces>();
115 List<String> oldRoutes = (original.getRoutes() != null) ? original.getRoutes() : new ArrayList<String>();
116 List<String> newRoutes = (update.getRoutes() != null) ? update.getRoutes() : new ArrayList<String>();
118 if (!oldInterfaces.equals(newInterfaces)) {
119 for (Interfaces intrf : newInterfaces) {
120 if (!oldInterfaces.remove(intrf)) {
122 nvpnManager.addSubnetToVpn(vpnId, intrf.getSubnetId());
125 //clear remaining old subnets
126 for (Interfaces intrf : oldInterfaces) {
127 nvpnManager.removeSubnetFromVpn(vpnId, intrf.getSubnetId());
130 if (!oldRoutes.equals(newRoutes)) {
131 Iterator<String> iterator = newRoutes.iterator();
132 while (iterator.hasNext()) {
133 String route = iterator.next();
134 if (oldRoutes.remove(route)) {
138 nvpnManager.addAdjacencyforExtraRoute(newRoutes, true, null);
139 if (!oldRoutes.isEmpty()) {
140 nvpnManager.removeAdjacencyforExtraRoute(oldRoutes);