2 * Copyright (c) 2016, 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
9 package org.opendaylight.netvirt.vpnmanager;
11 import com.google.common.base.Optional;
12 import java.util.ArrayList;
13 import java.util.List;
14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
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.netvirt.elan.rev150602.ElanInstances;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstanceKey;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.Subnetmaps;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.networks.rev150712.networks.attributes.networks.Network;
24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
29 public class SubnetmapChangeListener extends AsyncDataTreeChangeListenerBase<Subnetmap, SubnetmapChangeListener> {
30 private static final Logger LOG = LoggerFactory.getLogger(SubnetmapChangeListener.class);
31 private final DataBroker dataBroker;
32 private final VpnSubnetRouteHandler vpnSubnetRouteHandler;
34 public SubnetmapChangeListener(final DataBroker dataBroker, final VpnSubnetRouteHandler vpnSubnetRouteHandler) {
35 super(Subnetmap.class, SubnetmapChangeListener.class);
36 this.dataBroker = dataBroker;
37 this.vpnSubnetRouteHandler = vpnSubnetRouteHandler;
41 LOG.info("{} start", getClass().getSimpleName());
42 registerListener(dataBroker);
46 protected InstanceIdentifier<Subnetmap> getWildCardPath() {
47 return InstanceIdentifier.create(Subnetmaps.class).child(Subnetmap.class);
50 // TODO Clean up the exception handling
51 @SuppressWarnings("checkstyle:IllegalCatch")
52 private void registerListener(final DataBroker db) {
54 registerListener(LogicalDatastoreType.CONFIGURATION, db);
55 } catch (final Exception e) {
56 LOG.error("VPNManager subnetMap config DataChange listener registration fail!", e);
57 throw new IllegalStateException("VPNManager subnetMap config DataChange listener registration failed.", e);
62 protected void add(InstanceIdentifier<Subnetmap> identifier, Subnetmap subnetmap) {
63 LOG.trace("add:SubnetmapChangeListener add subnetmap method - key {}, value={}",identifier, subnetmap);
64 Uuid subnetId = subnetmap.getId();
65 Uuid vpnId = subnetmap.getVpnId();
66 if (subnetmap.getVpnId() != null) {
67 // SubnetRoute for ExternalSubnets is handled in ExternalSubnetVpnInstanceListener.
68 // Here we must handle only InternalVpnSubnetRoute and BGPVPNBasedSubnetRoute
69 Network network = VpnUtil.getNeutronNetwork(dataBroker, subnetmap.getNetworkId());
70 if (VpnUtil.getIsExternal(network)) {
73 boolean isBgpVpn = !vpnId.equals(subnetmap.getRouterId());
74 String elanInstanceName = subnetmap.getNetworkId().getValue();
75 Long elanTag = getElanTag(elanInstanceName);
76 if (elanTag.equals(0L)) {
77 LOG.error("add:Unable to fetch elantag from ElanInstance {} and hence not proceeding with "
78 + "subnetmapListener add for subnet {}", elanInstanceName, subnetId.getValue());
81 // subnet added to VPN case upon config DS replay after reboot
82 // ports added to subnet upon config DS replay after reboot are handled implicitly by subnetAddedToVpn
83 // in SubnetRouteHandler
84 vpnSubnetRouteHandler.onSubnetAddedToVpn(subnetmap, isBgpVpn , elanTag);
89 protected void remove(InstanceIdentifier<Subnetmap> identifier, Subnetmap subnetmap) {
90 LOG.trace("remove:SubnetmapChangeListener remove subnetmap method - key: {} value {}", identifier, subnetmap);
94 // TODO Clean up the exception handling
95 @SuppressWarnings("checkstyle:IllegalCatch")
96 protected void update(InstanceIdentifier<Subnetmap> identifier, Subnetmap subnetmapOriginal, Subnetmap
98 LOG.trace("update:SubnetmapListener update subnetmap method - key: {}, original: {}, update: {}",
99 identifier, subnetmapOriginal, subnetmapUpdate);
100 Uuid vpnIdNew = subnetmapUpdate.getVpnId();
101 Uuid vpnIdOld = subnetmapOriginal.getVpnId();
102 Uuid subnetId = subnetmapUpdate.getId();
103 String elanInstanceName = subnetmapUpdate.getNetworkId().getValue();
104 // SubnetRoute for ExternalSubnets is handled in ExternalSubnetVpnInstanceListener.
105 // Here we must handle only InternalVpnSubnetRoute and BGPVPNBasedSubnetRoute
106 Network network = VpnUtil.getNeutronNetwork(dataBroker, subnetmapUpdate.getNetworkId());
107 if (VpnUtil.getIsExternal(network)) {
110 Long elanTag = getElanTag(elanInstanceName);
111 if (elanTag.equals(0L)) {
112 LOG.error("update:Unable to fetch elantag from ElanInstance {} and hence not proceeding with "
113 + "subnetmapListener update for subnet {}", elanInstanceName, subnetId.getValue());
116 // subnet added to VPN case
117 if (vpnIdNew != null && vpnIdOld == null) {
118 boolean isBgpVpn = !vpnIdNew.equals(subnetmapUpdate.getRouterId());
122 vpnSubnetRouteHandler.onSubnetAddedToVpn(subnetmapUpdate, true, elanTag);
125 // subnet removed from VPN case
126 if (vpnIdOld != null && vpnIdNew == null) {
127 Boolean isBgpVpn = vpnIdOld.equals(subnetmapOriginal.getRouterId()) ? false : true;
131 vpnSubnetRouteHandler.onSubnetDeletedFromVpn(subnetmapOriginal, true);
134 // subnet updated in VPN case
135 if (vpnIdOld != null && vpnIdNew != null && (!vpnIdNew.equals(vpnIdOld))) {
136 vpnSubnetRouteHandler.onSubnetUpdatedInVpn(subnetmapUpdate, elanTag);
139 // port added/removed to/from subnet case
140 List<Uuid> oldPortList;
141 List<Uuid> newPortList;
142 newPortList = subnetmapUpdate.getPortList() != null ? subnetmapUpdate.getPortList() : new ArrayList<>();
143 oldPortList = subnetmapOriginal.getPortList() != null ? subnetmapOriginal.getPortList() : new ArrayList<>();
144 if (newPortList.size() == oldPortList.size()) {
147 if (newPortList.size() > oldPortList.size()) {
148 for (Uuid portId : newPortList) {
149 if (! oldPortList.contains(portId)) {
150 vpnSubnetRouteHandler.onPortAddedToSubnet(subnetmapUpdate, portId);
155 for (Uuid portId : oldPortList) {
156 if (! newPortList.contains(portId)) {
157 vpnSubnetRouteHandler.onPortRemovedFromSubnet(subnetmapUpdate, portId);
165 protected SubnetmapChangeListener getDataTreeChangeListener() {
169 // TODO Clean up the exception handling
170 @SuppressWarnings("checkstyle:IllegalCatch")
171 protected long getElanTag(String elanInstanceName) {
172 InstanceIdentifier<ElanInstance> elanIdentifierId = InstanceIdentifier.builder(ElanInstances.class)
173 .child(ElanInstance.class, new ElanInstanceKey(elanInstanceName)).build();
176 Optional<ElanInstance> elanInstance = VpnUtil.read(dataBroker, LogicalDatastoreType
177 .CONFIGURATION, elanIdentifierId);
178 if (elanInstance.isPresent()) {
179 elanTag = elanInstance.get().getElanTag();
181 LOG.error("Notification failed because of failure in reading ELANInstance {}", elanInstanceName);
183 } catch (Exception e) {
184 LOG.error("Notification failed because of failure in fetching elanTag from ElanInstance {} config DS",
185 elanInstanceName, e);