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
8 package org.opendaylight.netvirt.neutronvpn;
10 import com.google.common.base.Optional;
11 import java.util.ArrayList;
12 import java.util.List;
13 import javax.annotation.PostConstruct;
14 import javax.inject.Inject;
15 import javax.inject.Singleton;
16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
19 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
20 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
21 import org.opendaylight.genius.mdsalutil.MDSALUtil;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ProviderTypes;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.NetworkAttributes;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.networkmaps.NetworkMap;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.networkmaps.NetworkMapBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.networkmaps.NetworkMapKey;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.networks.rev150712.networks.attributes.networks.Network;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.Subnets;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
37 public class NeutronSubnetChangeListener extends AsyncDataTreeChangeListenerBase<Subnet, NeutronSubnetChangeListener> {
38 private static final Logger LOG = LoggerFactory.getLogger(NeutronSubnetChangeListener.class);
39 private final DataBroker dataBroker;
40 private final NeutronvpnManager nvpnManager;
41 private final NeutronExternalSubnetHandler externalSubnetHandler;
42 private final NeutronvpnUtils neutronvpnUtils;
45 public NeutronSubnetChangeListener(final DataBroker dataBroker, final NeutronvpnManager neutronvpnManager,
46 final NeutronExternalSubnetHandler externalSubnetHandler, final NeutronvpnUtils neutronvpnUtils) {
47 super(Subnet.class, NeutronSubnetChangeListener.class);
48 this.dataBroker = dataBroker;
49 this.nvpnManager = neutronvpnManager;
50 this.externalSubnetHandler = externalSubnetHandler;
51 this.neutronvpnUtils = neutronvpnUtils;
57 LOG.info("{} init", getClass().getSimpleName());
58 registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
62 protected InstanceIdentifier<Subnet> getWildCardPath() {
63 return InstanceIdentifier.create(Neutron.class).child(Subnets.class).child(Subnet.class);
67 protected NeutronSubnetChangeListener getDataTreeChangeListener() {
68 return NeutronSubnetChangeListener.this;
73 protected void add(InstanceIdentifier<Subnet> identifier, Subnet input) {
74 LOG.trace("Adding Subnet : key: {}, value={}", identifier, input);
75 Uuid networkId = input.getNetworkId();
76 Uuid subnetId = input.getUuid();
77 Network network = neutronvpnUtils.getNeutronNetwork(networkId);
78 if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
79 LOG.warn("neutron vpn received a subnet add() for a network without a provider extension augmentation "
80 + "or with an unsupported network type for the subnet {} which is part of network {}",
81 subnetId.getValue(), network);
84 neutronvpnUtils.addToSubnetCache(input);
85 handleNeutronSubnetCreated(input, network);
86 externalSubnetHandler.handleExternalSubnetAdded(network, subnetId, null);
90 protected void remove(InstanceIdentifier<Subnet> identifier, Subnet input) {
91 LOG.trace("Removing subnet : key: {}, value={}", identifier, input);
92 Uuid networkId = input.getNetworkId();
93 Uuid subnetId = input.getUuid();
94 Network network = neutronvpnUtils.getNeutronNetwork(networkId);
95 if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
96 LOG.warn("neutron vpn received a subnet remove() for a network without a provider extension augmentation "
97 + "or with an unsupported network type for the subnet {} which is part of network {}",
98 subnetId.getValue(), network);
101 handleNeutronSubnetDeleted(subnetId, networkId);
102 externalSubnetHandler.handleExternalSubnetRemoved(network, subnetId);
103 neutronvpnUtils.removeFromSubnetCache(input);
107 protected void update(InstanceIdentifier<Subnet> identifier, Subnet original, Subnet update) {
108 LOG.trace("Updating Subnet : key: {}, original value={}, update value={}", identifier, original, update);
109 neutronvpnUtils.addToSubnetCache(update);
112 private void handleNeutronSubnetCreated(Subnet subnet, Network network) {
113 Uuid networkId = network.getUuid();
114 Uuid subnetId = subnet.getUuid();
115 ProviderTypes providerType = NeutronvpnUtils.getProviderNetworkType(network);
116 String segmentationId = NeutronvpnUtils.getSegmentationIdFromNeutronNetwork(network);
117 nvpnManager.createSubnetmapNode(subnetId, String.valueOf(subnet.getCidr().getValue()),
118 subnet.getTenantId(), networkId,
119 providerType != null ? NetworkAttributes.NetworkType.valueOf(providerType.getName()) : null,
120 segmentationId != null ? Long.parseLong(segmentationId) : 0L);
121 createSubnetToNetworkMapping(subnetId, networkId);
124 private void handleNeutronSubnetDeleted(Uuid subnetId, Uuid networkId) {
125 Uuid vpnId = neutronvpnUtils.getVpnForNetwork(networkId);
127 nvpnManager.removeSubnetFromVpn(vpnId, subnetId, null /* internet-vpn-id */);
129 if (networkId != null) {
130 deleteSubnetToNetworkMapping(subnetId, networkId);
132 nvpnManager.deleteSubnetMapNode(subnetId);
135 // TODO Clean up the exception handling
136 @SuppressWarnings("checkstyle:IllegalCatch")
137 private void createSubnetToNetworkMapping(Uuid subnetId, Uuid networkId) {
139 InstanceIdentifier<NetworkMap> networkMapIdentifier = NeutronvpnUtils.buildNetworkMapIdentifier(networkId);
140 Optional<NetworkMap> optionalNetworkMap = SingleTransactionDataBroker.syncReadOptional(dataBroker,
141 LogicalDatastoreType.CONFIGURATION, networkMapIdentifier);
142 NetworkMapBuilder nwMapBuilder = null;
143 if (optionalNetworkMap.isPresent()) {
144 nwMapBuilder = new NetworkMapBuilder(optionalNetworkMap.get());
146 nwMapBuilder = new NetworkMapBuilder().setKey(new NetworkMapKey(networkId)).setNetworkId(networkId);
147 LOG.debug("Adding a new network node in NetworkMaps DS for network {}", networkId.getValue());
149 List<Uuid> subnetIdList = nwMapBuilder.getSubnetIdList();
150 if (subnetIdList == null) {
151 subnetIdList = new ArrayList<>();
153 subnetIdList.add(subnetId);
154 nwMapBuilder.setSubnetIdList(subnetIdList);
155 MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier, nwMapBuilder
157 LOG.debug("Created subnet-network mapping for subnet {} network {}", subnetId.getValue(),
158 networkId.getValue());
159 } catch (ReadFailedException | RuntimeException e) {
160 LOG.error("Create subnet-network mapping failed for subnet {} network {}", subnetId.getValue(),
161 networkId.getValue());
165 // TODO Clean up the exception handling
166 @SuppressWarnings("checkstyle:IllegalCatch")
167 private void deleteSubnetToNetworkMapping(Uuid subnetId, Uuid networkId) {
169 InstanceIdentifier<NetworkMap> networkMapIdentifier = NeutronvpnUtils.buildNetworkMapIdentifier(networkId);
170 Optional<NetworkMap> optionalNetworkMap = SingleTransactionDataBroker.syncReadOptional(dataBroker,
171 LogicalDatastoreType.CONFIGURATION, networkMapIdentifier);
172 if (optionalNetworkMap.isPresent()) {
173 NetworkMapBuilder nwMapBuilder = new NetworkMapBuilder(optionalNetworkMap.get());
174 List<Uuid> subnetIdList = nwMapBuilder.getSubnetIdList();
175 if (subnetIdList.remove(subnetId)) {
176 if (subnetIdList.isEmpty()) {
177 MDSALUtil.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier);
178 LOG.debug("Deleted network node in NetworkMaps DS for subnet {} network {}",
179 subnetId.getValue(), networkId.getValue());
181 nwMapBuilder.setSubnetIdList(subnetIdList);
182 MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier,
183 nwMapBuilder.build());
184 LOG.debug("Deleted subnet-network mapping for subnet {} network {}", subnetId.getValue(),
185 networkId.getValue());
188 LOG.error("Subnet {} is not mapped to network {}", subnetId.getValue(), networkId.getValue());
191 LOG.error("network {} not present for subnet {} ", networkId, subnetId);
193 } catch (ReadFailedException | RuntimeException e) {
194 LOG.error("Delete subnet-network mapping failed for subnet {} network {}", subnetId.getValue(),
195 networkId.getValue());