2 * Copyright (c) 2017 HPE, Inc. 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.natservice.internal;
10 import com.google.common.base.Optional;
12 import javax.annotation.PostConstruct;
13 import javax.inject.Inject;
14 import javax.inject.Singleton;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
18 import org.opendaylight.genius.mdsalutil.NwConstants;
19 import org.opendaylight.netvirt.elanmanager.api.IElanService;
20 import org.opendaylight.netvirt.vpnmanager.api.IVpnManager;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.VpnInstanceToVpnId;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.to.vpn.id.VpnInstance;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.external.subnets.Subnets;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
32 public class ExternalSubnetVpnInstanceListener extends AsyncDataTreeChangeListenerBase<VpnInstance,
33 ExternalSubnetVpnInstanceListener> implements AutoCloseable {
34 private static final Logger LOG = LoggerFactory.getLogger(ExternalSubnetVpnInstanceListener.class);
35 private final DataBroker dataBroker;
36 private final SNATDefaultRouteProgrammer snatDefaultRouteProgrammer;
37 private final IElanService elanService;
38 private final IVpnManager vpnManager;
41 public ExternalSubnetVpnInstanceListener(final DataBroker dataBroker,
42 final SNATDefaultRouteProgrammer snatDefaultRouteProgrammer,
43 final IElanService elanService, final IVpnManager vpnManager) {
44 this.dataBroker = dataBroker;
45 this.snatDefaultRouteProgrammer = snatDefaultRouteProgrammer;
46 this.elanService = elanService;
47 this.vpnManager = vpnManager;
53 LOG.info("{} init", getClass().getSimpleName());
54 registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
58 protected InstanceIdentifier<VpnInstance> getWildCardPath() {
59 return InstanceIdentifier.create(VpnInstanceToVpnId.class).child(VpnInstance.class);
63 protected void remove(InstanceIdentifier<VpnInstance> key, VpnInstance vpnInstance) {
64 LOG.trace("remove : External Subnet VPN Instance remove mapping method - key:{}. value={}",
65 vpnInstance.getKey(), vpnInstance);
66 String possibleExtSubnetUuid = vpnInstance.getVpnInstanceName();
67 Optional<Subnets> optionalSubnets = NatUtil.getOptionalExternalSubnets(dataBroker,
68 new Uuid(possibleExtSubnetUuid));
69 if (optionalSubnets.isPresent()) {
70 addOrDelDefaultFibRouteToSNATFlow(vpnInstance, optionalSubnets.get(), NwConstants.DEL_FLOW);
71 invokeSubnetDeletedFromVpn(possibleExtSubnetUuid);
76 protected void update(InstanceIdentifier<VpnInstance> key, VpnInstance vpnInstanceOrig,
77 VpnInstance vpnInstanceNew) {
78 LOG.trace("update : External Subnet VPN Instance update mapping method - key:{} original:{} new:{}",
79 vpnInstanceNew.getKey(), vpnInstanceOrig, vpnInstanceNew);
83 protected void add(InstanceIdentifier<VpnInstance> key, VpnInstance vpnInstance) {
84 LOG.trace("add : External Subnet VPN Instance OP Data Entry add mapping method - key:{}. value={}",
85 vpnInstance.getKey(), vpnInstance);
86 String possibleExtSubnetUuid = vpnInstance.getVpnInstanceName();
87 Optional<Subnets> optionalSubnets = NatUtil.getOptionalExternalSubnets(dataBroker,
88 new Uuid(possibleExtSubnetUuid));
89 if (optionalSubnets.isPresent()) {
90 LOG.debug("add : VpnInstance {} for external subnet {}.", possibleExtSubnetUuid,
91 optionalSubnets.get());
92 addOrDelDefaultFibRouteToSNATFlow(vpnInstance, optionalSubnets.get(), NwConstants.ADD_FLOW);
93 invokeSubnetAddedToVpn(possibleExtSubnetUuid);
97 private void invokeSubnetAddedToVpn(String externalSubnetId) {
98 Uuid externalSubnetUuid = new Uuid(externalSubnetId);
99 Subnetmap subnetMap = NatUtil.getSubnetMap(dataBroker, externalSubnetUuid);
100 if (subnetMap == null) {
101 LOG.error("invokeSubnetAddedToVpn : Cannot invoke onSubnetAddedToVpn for subnet-id {} in vpn-id {}"
102 + " due to this subnet missing in Subnetmap model", externalSubnetUuid, externalSubnetId);
105 ElanInstance elanInstance = elanService.getElanInstance(subnetMap.getNetworkId().getValue());
106 vpnManager.onSubnetAddedToVpn(subnetMap, false, elanInstance.getElanTag());
110 private void invokeSubnetDeletedFromVpn(String externalSubnetId) {
111 Uuid externalSubnetUuid = new Uuid(externalSubnetId);
112 Subnetmap subnetMap = NatUtil.getSubnetMap(dataBroker, externalSubnetUuid);
113 vpnManager.onSubnetDeletedFromVpn(subnetMap, false);
116 private void addOrDelDefaultFibRouteToSNATFlow(VpnInstance vpnInstance, Subnets subnet, int flowAction) {
117 String vpnInstanceName = vpnInstance.getVpnInstanceName();
118 LOG.debug("addOrDelDefaultFibRouteToSNATFlow : VpnInstance {} for external subnet {}.",
119 vpnInstanceName, subnet);
120 Long vpnId = vpnInstance.getVpnId();
121 snatDefaultRouteProgrammer.addOrDelDefaultFibRouteToSNATForSubnet(subnet,
122 subnet.getExternalNetworkId().getValue(), flowAction, vpnId);
126 protected ExternalSubnetVpnInstanceListener getDataTreeChangeListener() {
127 return ExternalSubnetVpnInstanceListener.this;