2 * Copyright (c) 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
9 package org.opendaylight.vpnservice.neutronvpn;
12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.bgpvpns.rev150903.bgpvpns.attributes.Bgpvpns;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.bgpvpns.rev150903.bgpvpns.attributes.bgpvpns.Bgpvpn;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
21 import org.opendaylight.yangtools.concepts.ListenerRegistration;
22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
23 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
26 import java.util.ArrayList;
27 import java.util.Iterator;
28 import java.util.List;
31 public class NeutronBgpvpnChangeListener extends AbstractDataChangeListener<Bgpvpn> implements AutoCloseable {
32 private static final Logger LOG = LoggerFactory.getLogger(NeutronBgpvpnChangeListener.class);
34 private ListenerRegistration<DataChangeListener> listenerRegistration;
35 private NeutronvpnManager nvpnManager;
38 public NeutronBgpvpnChangeListener(final DataBroker db, NeutronvpnManager nVpnMgr) {
40 nvpnManager = nVpnMgr;
45 public void close() throws Exception {
46 if (listenerRegistration != null) {
48 listenerRegistration.close();
49 } catch (final Exception e) {
50 LOG.error("Error when cleaning up DataChangeListener.", e);
52 listenerRegistration = null;
54 LOG.info("N_Bgpvpn listener Closed");
58 private void registerListener(final DataBroker db) {
60 listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
61 InstanceIdentifier.create(Neutron.class).child(Bgpvpns.class).child(Bgpvpn.class),
62 NeutronBgpvpnChangeListener.this, DataChangeScope.SUBTREE);
63 } catch (final Exception e) {
64 LOG.error("Neutron Manager Bgpvpn DataChange listener registration fail!", e);
65 throw new IllegalStateException("Neutron Manager Bgpvpn DataChange listener registration failed.", e);
70 protected void add(InstanceIdentifier<Bgpvpn> identifier, Bgpvpn input) {
71 if (LOG.isTraceEnabled()) {
72 LOG.trace("Adding Bgpvpn : key: " + identifier + ", value=" + input);
74 // Create internal VPN
75 // handle route-target
76 List<String> irt = new ArrayList<String>();
77 List<String> ert = new ArrayList<String>();
78 List<String> inrt = input.getRouteTargets();
79 List<String> inirt = input.getImportTargets();
80 List<String> inert = input.getExportTargets();
81 if (inrt != null && !inrt.isEmpty()) {
85 if (inirt != null && !inirt.isEmpty()) {
88 if (inert != null && !inert.isEmpty()) {
91 List<String> rd = input.getRouteDistinguishers();
93 if (rd == null || rd.isEmpty()) {
97 if (input.getRouters() != null && !input.getRouters().isEmpty()) {
98 // currently only one router
99 router = input.getRouters().get(0);
101 nvpnManager.createL3Vpn(input.getUuid(), input.getName(), input.getTenantId(),
102 rd, irt, ert, router, input.getNetworks());
106 protected void remove(InstanceIdentifier<Bgpvpn> identifier, Bgpvpn input) {
107 if (LOG.isTraceEnabled()) {
108 LOG.trace("Removing Bgpvpn : key: " + identifier + ", value=" + input);
110 nvpnManager.removeL3Vpn(input.getUuid());
115 protected void update(InstanceIdentifier<Bgpvpn> identifier, Bgpvpn original, Bgpvpn update) {
116 List<Uuid> oldNetworks = original.getNetworks();
117 List<Uuid> newNetworks = update.getNetworks();
118 List<Uuid> oldRouters= original.getRouters();
119 List<Uuid> newRouters = update.getRouters();
120 Uuid vpnId = update.getUuid();
122 if (LOG.isTraceEnabled()) {
123 LOG.trace("Update Bgpvpn : key: " + identifier + ", value=" + update);
126 handleNetworksUpdate(vpnId, oldNetworks, newNetworks);
127 handleRoutersUpdate(vpnId, oldRouters, newRouters);
130 protected void handleNetworksUpdate(Uuid vpnId, List<Uuid> oldNetworks, List<Uuid> newNetworks) {
131 if (newNetworks != null && !newNetworks.isEmpty()) {
132 if (oldNetworks != null && !oldNetworks.isEmpty()) {
133 if (oldNetworks != newNetworks) {
134 Iterator<Uuid> iter = newNetworks.iterator();
135 while (iter.hasNext()) {
136 Object net = iter.next();
137 if (oldNetworks.contains(net)) {
138 oldNetworks.remove(net);
142 //clear removed networks
143 if (!oldNetworks.isEmpty()) {
144 LOG.trace("Removing old networks {} ", oldNetworks);
145 nvpnManager.dissociateNetworksFromVpn(vpnId, oldNetworks);
147 //add new (Delta) Networks
148 if (!newNetworks.isEmpty()) {
149 LOG.trace("Adding delta New networks {} ", newNetworks);
150 nvpnManager.associateNetworksToVpn(vpnId, newNetworks);
155 LOG.trace("Adding New networks {} ", newNetworks);
156 nvpnManager.associateNetworksToVpn(vpnId, newNetworks);
161 protected void handleRoutersUpdate(Uuid vpnId, List<Uuid> oldRouters, List<Uuid> newRouters) {
162 if (newRouters != null && !newRouters.isEmpty()) {
163 if (oldRouters != null && !oldRouters.isEmpty()) {
164 Uuid oldRouter = oldRouters.get(0);
165 Uuid newRouter = newRouters.get(0);
166 if (oldRouter != newRouter) {
167 nvpnManager.dissociateRouterFromVpn(vpnId, oldRouter);
168 nvpnManager.associateRouterToVpn(vpnId, newRouter);
171 nvpnManager.associateRouterToVpn(vpnId, newRouters.get(0));
174 /* dissociate old router */
175 if (oldRouters != null && !oldRouters.isEmpty()) {
176 Uuid oldRouter = oldRouters.get(0);
177 nvpnManager.dissociateRouterFromVpn(vpnId, oldRouter);
181 /* TBD : multiple rotuer support
182 if (oldRouters != newRouters) {
183 Iterator<Uuid> iter = newRouters.iterator();
184 while (iter.hasNext()) {
185 Object net = iter.next();
186 if (oldRouters.contains(net)) {
187 oldRouters.remove(net);
191 //clear removed routers
192 if (!oldRouters.isEmpty()) {
193 LOG.trace("Removing old routers {} ", oldRouters);
194 nvpnManager.dissociateRoutersFromVpn(vpnId, oldRouters);
196 //add new (Delta) routers
197 if (!newRouters.isEmpty()) {
198 LOG.trace("Adding delta New routers {} ", newRouters);
199 nvpnManager.associateRoutersToVpn(vpnId, newRouters);
204 LOG.trace("Adding New routers {} ", newRouters);
205 nvpnManager.associateRoutersToVpn(vpnId, newRouters);