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
8 package org.opendaylight.vpnservice.neutronvpn;
10 import com.google.common.base.Optional;
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.vpnservice.mdsalutil.MDSALUtil;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.Subnets;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.networkmaps.NetworkMap;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.networkmaps.NetworkMapBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.neutronvpn.rev150602.networkmaps.NetworkMapKey;
25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 import java.util.ArrayList;
31 import java.util.List;
34 public class NeutronSubnetChangeListener extends AbstractDataChangeListener<Subnet> implements AutoCloseable {
35 private static final Logger LOG = LoggerFactory.getLogger(NeutronSubnetChangeListener.class);
37 private ListenerRegistration<DataChangeListener> listenerRegistration;
38 private final DataBroker broker;
39 private NeutronvpnManager nvpnManager;
42 public NeutronSubnetChangeListener(final DataBroker db, NeutronvpnManager nVpnMgr) {
45 nvpnManager = nVpnMgr;
50 public void close() throws Exception {
51 if (listenerRegistration != null) {
53 listenerRegistration.close();
54 } catch (final Exception e) {
55 LOG.error("Error when cleaning up DataChangeListener.", e);
57 listenerRegistration = null;
59 LOG.info("N_Subnet listener Closed");
63 private void registerListener(final DataBroker db) {
65 listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
66 InstanceIdentifier.create(Neutron.class).child(Subnets.class).child(Subnet.class),
67 NeutronSubnetChangeListener.this, DataChangeScope.SUBTREE);
68 } catch (final Exception e) {
69 LOG.error("Neutron Manager Subnet DataChange listener registration fail!", e);
70 throw new IllegalStateException("Neutron Manager Subnet DataChange listener registration failed.", e);
75 protected void add(InstanceIdentifier<Subnet> identifier, Subnet input) {
76 if (LOG.isTraceEnabled()) {
77 LOG.trace("Adding Subnet : key: " + identifier + ", value=" + input);
79 handleNeutronSubnetCreated(input.getUuid(), input.getCidr(), input.getNetworkId(), input.getTenantId());
83 protected void remove(InstanceIdentifier<Subnet> identifier, Subnet input) {
84 if (LOG.isTraceEnabled()) {
85 LOG.trace("Removing subnet : key: " + identifier + ", value=" + input);
87 handleNeutronSubnetDeleted(input.getUuid(), input.getNetworkId(), null);
91 protected void update(InstanceIdentifier<Subnet> identifier, Subnet original, Subnet update) {
92 if (LOG.isTraceEnabled()) {
93 LOG.trace("Updating Subnet : key: " + identifier + ", original value=" + original + ", update value=" +
96 handleNeutronSubnetUpdated(update.getUuid(), update.getNetworkId(), update.getTenantId());
99 private void handleNeutronSubnetCreated(Uuid subnetId, String subnetIp, Uuid networkId, Uuid tenantId) {
100 nvpnManager.updateSubnetNode(subnetId, subnetIp, tenantId, networkId, null, null, null);
101 if (networkId != null && NeutronvpnUtils.getNeutronNetwork(broker, networkId) != null) {
102 createSubnetToNetworkMapping(subnetId, networkId);
106 private void handleNeutronSubnetDeleted(Uuid subnetId, Uuid networkId, Uuid tenantId) {
107 Uuid vpnId = NeutronvpnUtils.getVpnForNetwork(broker, networkId);
109 nvpnManager.removeSubnetFromVpn(vpnId, subnetId);
111 if (networkId != null) {
112 deleteSubnetToNetworkMapping(subnetId, networkId);
114 nvpnManager.deleteSubnetMapNode(subnetId);
117 private void handleNeutronSubnetUpdated(Uuid subnetId, Uuid networkId, Uuid tenantId) {
118 Uuid oldNetworkId = NeutronvpnUtils.getSubnetmap(broker, subnetId).getNetworkId();
119 if (oldNetworkId != null && !oldNetworkId.equals(networkId)) {
120 deleteSubnetToNetworkMapping(subnetId, oldNetworkId);
122 if (networkId != null && !networkId.equals(oldNetworkId)) {
123 createSubnetToNetworkMapping(subnetId, networkId);
125 nvpnManager.updateSubnetNode(subnetId, null, tenantId, networkId, null, null, null);
128 private void createSubnetToNetworkMapping(Uuid subnetId, Uuid networkId) {
130 InstanceIdentifier networkMapIdentifier = NeutronvpnUtils.buildNetworkMapIdentifier(networkId);
131 Optional<NetworkMap> optionalNetworkMap = NeutronvpnUtils.read(broker, LogicalDatastoreType.CONFIGURATION,
132 networkMapIdentifier);
133 NetworkMapBuilder nwMapBuilder = null;
134 if (optionalNetworkMap.isPresent()) {
135 nwMapBuilder = new NetworkMapBuilder(optionalNetworkMap.get());
137 nwMapBuilder = new NetworkMapBuilder().setKey(new NetworkMapKey(networkId)).setNetworkId(networkId);
138 LOG.debug("Adding a new network node in NetworkMaps DS for network {}", networkId.getValue());
140 List<Uuid> subnetIdList = nwMapBuilder.getSubnetIdList();
141 if (subnetIdList == null) {
142 subnetIdList = new ArrayList<>();
144 subnetIdList.add(subnetId);
145 nwMapBuilder.setSubnetIdList(subnetIdList);
146 MDSALUtil.syncWrite(broker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier, nwMapBuilder.build());
147 LOG.debug("Created subnet-network mapping for subnet {} network {}", subnetId.getValue(),
148 networkId.getValue());
149 } catch (Exception e) {
150 LOG.error("Create subnet-network mapping failed for subnet {} network {}", subnetId.getValue(),
151 networkId.getValue());
155 private void deleteSubnetToNetworkMapping(Uuid subnetId, Uuid networkId) {
157 InstanceIdentifier networkMapIdentifier = NeutronvpnUtils.buildNetworkMapIdentifier(networkId);
158 Optional<NetworkMap> optionalNetworkMap = NeutronvpnUtils.read(broker, LogicalDatastoreType.CONFIGURATION,
159 networkMapIdentifier);
160 if (optionalNetworkMap.isPresent()) {
161 NetworkMapBuilder nwMapBuilder = new NetworkMapBuilder(optionalNetworkMap.get());
162 List<Uuid> subnetIdList = nwMapBuilder.getSubnetIdList();
163 if (subnetIdList.remove(subnetId)) {
164 if (subnetIdList.size() == 0) {
165 MDSALUtil.syncDelete(broker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier);
166 LOG.debug("Deleted network node in NetworkMaps DS for network {}", subnetId.getValue(),
167 networkId.getValue());
169 nwMapBuilder.setSubnetIdList(subnetIdList);
170 MDSALUtil.syncWrite(broker, LogicalDatastoreType.CONFIGURATION, networkMapIdentifier,
171 nwMapBuilder.build());
172 LOG.debug("Deleted subnet-network mapping for subnet {} network {}", subnetId.getValue(),
173 networkId.getValue());
176 LOG.error("Subnet {} is not mapped to network {}", subnetId.getValue(), networkId.getValue());
179 LOG.error("network {} not present for subnet {} ", networkId, subnetId);
181 } catch (Exception e) {
182 LOG.error("Delete subnet-network mapping failed for subnet {} network {}", subnetId.getValue(),
183 networkId.getValue());