neutron-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/mapper/mapping/NeutronPortAware.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.groupbasedpolicy.neutron.mapper.mapping;
   9
  10 import static com.google.common.base.Preconditions.checkNotNull;
  11
  12 import com.google.common.base.Optional;
  13 import com.google.common.collect.ImmutableList;
  14 import com.google.common.collect.Lists;
  15
  16 import java.util.ArrayList;
  17 import java.util.Collections;
  18 import java.util.List;
  19 import java.util.Set;
  20 import java.util.stream.Collectors;
  21
  22 import javax.annotation.Nullable;
  23
  24 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  25 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  26 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  27 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  28 import org.opendaylight.groupbasedpolicy.domain_extension.l2_l3.util.L2L3IidFactory;
  29 import org.opendaylight.groupbasedpolicy.neutron.gbp.util.NeutronGbpIidFactory;
  30 import org.opendaylight.groupbasedpolicy.neutron.mapper.EndpointRegistrator;
  31 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.MetadataService;
  32 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkClient;
  33 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkService;
  34 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
  35 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.PortUtils;
  36 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.SubnetUtils;
  37 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  38 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInputBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpoint;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpoint;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpointBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.ParentEndpointCaseBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpoint;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpointBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointReg;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointRegBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnreg;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnregBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2BridgeDomainId;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.NetworkDomainId;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.UniqueId;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3Address;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3AddressBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2Builder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3Builder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.IpPrefixType;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.L3Context;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.MacAddressType;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContext;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContextBuilder;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.NetworkDomain;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.base.endpoints.by.ports.BaseEndpointByPort;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.endpoints.by.ports.EndpointByPort;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpoint;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpointKey;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.endpoints.PortByEndpoint;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomain;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomainBuilder;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.binding.rev150712.PortBindingExtension;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsBuilder;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsKey;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.PortBuilder;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  96 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  97 import org.slf4j.Logger;
  98 import org.slf4j.LoggerFactory;
  99
 100 public class NeutronPortAware implements NeutronAware<Port> {
 101
 102     private static final Logger LOG = LoggerFactory.getLogger(NeutronPortAware.class);
 103     public static final InstanceIdentifier<Port> PORT_WILDCARD_IID =
 104             InstanceIdentifier.builder(Neutron.class).child(Ports.class).child(Port.class).build();
 105     private final DataBroker dataProvider;
 106     private final EndpointRegistrator epRegistrator;
 107     private final IpPrefix metadataIpPrefix;
 108
 109     public NeutronPortAware(DataBroker dataProvider, EndpointRegistrator epRegistrator,
 110             @Nullable IpPrefix metadataIpPrefix) {
 111         this.dataProvider = checkNotNull(dataProvider);
 112         this.epRegistrator = checkNotNull(epRegistrator);
 113         this.metadataIpPrefix = checkNotNull(metadataIpPrefix);
 114     }
 115
 116     @Override
 117     public void onCreated(Port createdItem, Neutron neutron) {
 118         onCreated(createdItem, neutron, true);
 119     }
 120
 121     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 122                                                // this will be removed when deprecated classes will be cleared.
 123     public void onCreated(Port port, Neutron neutron, boolean addBaseEpMapping) {
 124         LOG.trace("created port - {}", port);
 125         if (PortUtils.isRouterInterfacePort(port)) {
 126             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 127             // router interface port can have only one IP
 128             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 129             if (!potentialPortIpWithSubnet.isPresent()) {
 130                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}", port);
 131                 return;
 132             }
 133             final FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 134             final ContextId routerL3Context = new ContextId(port.getDeviceId());
 135             AddressEndpointKey addrEpKey = new AddressEndpointKey(port.getMacAddress().getValue(), MacAddressType.class,
 136                     new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 137             UniqueId portId = new UniqueId(port.getUuid().getValue());
 138             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 139             addBaseEndpointMappings(addrEpKey, portId, rwTx);
 140             // Add Qrouter and VPProuter port as Endpoint
 141             if (port.getAugmentation(PortBindingExtension.class) != null && PortUtils.DEVICE_VIF_TYPE
 142                 .equals(port.getAugmentation(PortBindingExtension.class).getVifType())) {
 143                 LOG.trace("Port is QRouter port: {}", port.getUuid().getValue());
 144                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 145                 if (!firstFixedIps.isPresent()) {
 146                     LOG.warn("QRouter port does not have an IP address. {}", port);
 147                     return;
 148                 }
 149                 FixedIps ipWithSubnet = firstFixedIps.get();
 150                 NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 151                 List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 152                 epgsFromSecGroups.add(NetworkService.EPG_ID);
 153                 // BUILD BASE ENDPOINT
 154                 AddressEndpointRegBuilder l2BaseEp =
 155                         createBasicMacAddrEpInputBuilder(port, networkContainment, epgsFromSecGroups);
 156                 AddressEndpointRegBuilder l3BaseEp =
 157                         createBasicL3AddrEpInputBuilder(port, networkContainment, epgsFromSecGroups, neutron);
 158                 setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 159                 // BUILD ENDPOINT
 160                 org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 161                         createEndpointRegFromPort(port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
 162                 registerBaseEndpointAndStoreMapping(ImmutableList.of(l2BaseEp.build(), l3BaseEp.build()), port, rwTx,
 163                         addBaseEpMapping);
 164                 registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 165             }
 166             // change L3Context for all EPs with same subnet as router port
 167             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), port.getNetworkId(),
 168                     new Uuid(port.getDeviceId()), neutron, true);
 169             // set L3Context as parent for bridge domain which is parent of subnet
 170             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 171             Optional<Subnet> potentialRouterPortSubnet =
 172                     SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(), neutron.getSubnets());
 173             if (!potentialRouterPortSubnet.isPresent()) {
 174                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}", port);
 175                 return;
 176             }
 177             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 178             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 179             ForwardingContext l2Bd = new ForwardingContextBuilder().setContextId(l2BdId)
 180                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 181                 .setParent(MappingUtils.createParent(routerL3Context, MappingUtils.L3_CONTEXT))
 182                 .build();
 183             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd,
 184                     true);
 185             // set virtual router IP for subnet
 186             NetworkDomain subnetDomain = NeutronSubnetAware.createSubnet(routerPortSubnet, neutron, null);
 187             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
 188                     L2L3IidFactory.subnetIid(tenantId, subnetDomain.getNetworkDomainId()), subnetDomain);
 189
 190             // does the same for tenant forwarding domains
 191             processTenantForwarding(routerPortSubnet, routerL3Context, portIpWithSubnet, tenantId, rwTx);
 192
 193             DataStoreHelper.submitToDs(rwTx);
 194         } else if (PortUtils.isDhcpPort(port)) {
 195             // process as normal port but put it to DHCP group
 196             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 197             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 198             if (!firstFixedIps.isPresent()) {
 199                 LOG.warn("DHCP port does not have an IP address. {}", port);
 200                 return;
 201             }
 202             FixedIps ipWithSubnet = firstFixedIps.get();
 203             NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 204             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 205             epgsFromSecGroups.add(NetworkService.EPG_ID);
 206             AddressEndpointRegBuilder l2BaseEp =
 207                     createBasicMacAddrEpInputBuilder(port, networkContainment, Collections.emptyList());
 208             AddressEndpointRegBuilder l3BaseEp =
 209                     createBasicL3AddrEpInputBuilder(port, networkContainment, epgsFromSecGroups, neutron);
 210
 211             setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 212             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 213                     createEndpointRegFromPort(port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
 214             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 215             registerBaseEndpointAndStoreMapping(ImmutableList.of(l3BaseEp.build(), l2BaseEp.build()), port, rwTx,
 216                     addBaseEpMapping);
 217             registerMetadataServiceForDhcpPort(port, neutron, l2BaseEp, rwTx, true);
 218             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 219             DataStoreHelper.submitToDs(rwTx);
 220         } else if (PortUtils.isNormalPort(port)) {
 221             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 222             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 223                     null;
 224             AddressEndpointRegBuilder l2BaseEp;
 225             AddressEndpointRegBuilder l3BaseEp = null;
 226             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 227             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 228             epgsFromSecGroups.add(NetworkClient.EPG_ID);
 229             if (firstFixedIps.isPresent()) {
 230                 // endpoint has only one network containment therefore only first IP is used
 231                 FixedIps ipWithSubnet = firstFixedIps.get();
 232                 NetworkDomainId containment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 233                 epInBuilder = createEndpointRegFromPort(port, ipWithSubnet, containment, epgsFromSecGroups, neutron);
 234                 l2BaseEp = createBasicMacAddrEpInputBuilder(port, containment, epgsFromSecGroups);
 235                 l3BaseEp = createBasicL3AddrEpInputBuilder(port, containment, epgsFromSecGroups, neutron);
 236                 setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 237             } else {
 238                 NetworkDomainId containment = new NetworkDomainId(port.getNetworkId().getValue());
 239                 epInBuilder = createEndpointRegFromPort(port, null, containment, epgsFromSecGroups, neutron);
 240                 l2BaseEp = createBasicMacAddrEpInputBuilder(port, containment, epgsFromSecGroups);
 241             }
 242             List<AddressEndpointReg> baseEpRegs = new ArrayList<>();
 243             baseEpRegs.add(l2BaseEp.build());
 244             if (l3BaseEp != null) {
 245                 baseEpRegs.add(l3BaseEp.build());
 246             }
 247             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 248             registerBaseEndpointAndStoreMapping(baseEpRegs, port, rwTx, addBaseEpMapping);
 249             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 250             DataStoreHelper.submitToDs(rwTx);
 251         } else if (PortUtils.isRouterGatewayPort(port)) {
 252             // do nothing because actual trigger is attaching of port to router
 253             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 254         } else if (PortUtils.isFloatingIpPort(port)) {
 255             // do nothing because trigger is floating IP
 256             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 257         } else {
 258             LOG.warn("Unknown port: {}", port);
 259         }
 260     }
 261
 262     private Port cloneMetadataPortFromDhcpPort(Port port, IpPrefix metadataPrefix) {
 263         IpAddress metadataIp = MappingUtils.ipPrefixToIpAddress(metadataPrefix);
 264         List<FixedIps> metadataIps = port.getFixedIps().stream().map(fi -> {
 265             FixedIpsKey key = new FixedIpsKey(metadataIp, fi.getKey().getSubnetId());
 266             return new FixedIpsBuilder(fi).setKey(key).setIpAddress(metadataIp).build();
 267         }).collect(Collectors.toList());
 268         return new PortBuilder(port).setFixedIps(metadataIps).build();
 269     }
 270
 271     private void registerMetadataServiceForDhcpPort(Port port, Neutron neutron, AddressEndpointRegBuilder childEpToAdd,
 272             ReadWriteTransaction rwTx, boolean registerMapping) {
 273         Optional<NetworkDomainId> resolveNetworkContainment = PortUtils.resolveNetworkContainment(port);
 274         if (!resolveNetworkContainment.isPresent()) {
 275             LOG.warn("DHCP port does not have an IP address. {}", port);
 276             return;
 277         }
 278         AddressEndpointRegBuilder metadataEp =
 279                 createBasicL3AddrEpInputBuilder(cloneMetadataPortFromDhcpPort(port, metadataIpPrefix),
 280                         resolveNetworkContainment.get(), Lists.newArrayList(MetadataService.EPG_ID), neutron);
 281         AddressEndpointKey aek = new AddressEndpointKey(metadataEp.getAddress(), metadataEp.getAddressType(),
 282                 metadataEp.getContextId(), metadataEp.getContextType());
 283         Optional<AddressEndpoint> optMetadataEp =
 284                 DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL, IidFactory.addressEndpointIid(aek), rwTx);
 285         if (!optMetadataEp.isPresent()) {
 286             setParentChildRelationshipForEndpoints(metadataEp, childEpToAdd);
 287         } else {
 288             List<ChildEndpoint> childs = optMetadataEp.get().getChildEndpoint();
 289             childs.add(createChildEndpoint(childEpToAdd));
 290             metadataEp.setChildEndpoint(childs);
 291         }
 292         registerBaseEndpointAndStoreMapping(ImmutableList.of(metadataEp.build()), port, rwTx, registerMapping);
 293     }
 294
 295     private void setParentChildRelationshipForEndpoints(AddressEndpointRegBuilder parentEp,
 296             AddressEndpointRegBuilder childEp) {
 297         childEp.setParentEndpointChoice(new ParentEndpointCaseBuilder()
 298             .setParentEndpoint(ImmutableList.<ParentEndpoint>of(createParentEndpoint(parentEp))).build());
 299         parentEp.setChildEndpoint(ImmutableList.<ChildEndpoint>of(createChildEndpoint(childEp)));
 300     }
 301
 302     @Deprecated
 303     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 304                                                // this will be removed when deprecated classes will be cleared.
 305     private void processTenantForwarding(Subnet routerPortSubnet, ContextId routerL3Context, FixedIps portIpWithSubnet,
 306             TenantId tenantId, ReadWriteTransaction rwTx) {
 307         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 308         L2BridgeDomain l2Bd =
 309                 new L2BridgeDomainBuilder().setId(l2BdId).setParent(new L3ContextId(routerL3Context)).build();
 310         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd, true);
 311         // set virtual router IP for subnet
 312         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet subnet =
 313                 NeutronSubnetAware.createTenantSubnet(routerPortSubnet, portIpWithSubnet.getIpAddress());
 314         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, subnet.getId()), subnet);
 315     }
 316
 317     /**
 318      * Registers endpoint from {@link Port} and method parameters.
 319      * Always creates registration input for L2 endpoint.
 320      * Creates registration input for L3 endpoint if fixedIps argument is not null.
 321      */
 322     @Deprecated
 323     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 324                                                // this will be removed when deprecated classes will be cleared.
 325     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createEndpointRegFromPort(
 326             Port port, FixedIps fixedIps, NetworkDomainId networkContainment, List<EndpointGroupId> endpointGroupIds,
 327             Neutron neutron) {
 328         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 329                 createBasicEndpointInputBuilder(port).setNetworkContainment(networkContainment);
 330         if (fixedIps != null) {
 331             L3Address l3Address = resolveL3AddressFromPort(port, fixedIps, neutron);
 332             epInBuilder.setL3Address(ImmutableList.of(l3Address));
 333         }
 334         epInBuilder.setEndpointGroups(endpointGroupIds);
 335         return epInBuilder;
 336     }
 337
 338     private void changeL3ContextForEpsInSubnet(Uuid subnetUuid, Uuid networkId, Uuid routerId, Neutron neutron,
 339             boolean routerInterfAdded) {
 340         if (neutron == null) {
 341             LOG.debug("No new data are written, there is no L3 context in subnet {} to update", subnetUuid);
 342             return;
 343         }
 344         java.util.Optional<Subnet> optSubnet = neutron.getSubnets()
 345             .getSubnet()
 346             .stream()
 347             .filter(subnet -> subnet.getNetworkId() != null
 348                     && subnet.getUuid().getValue().equals(subnetUuid.getValue()))
 349             .findAny();
 350         if (!optSubnet.isPresent()) {
 351             LOG.error("Failed to update metadata endpoint in subnet {}. Could not resolve Network ID", subnetUuid);
 352         } else {
 353             AddressEndpointUnregBuilder metadataEpUnreg =
 354                     new AddressEndpointUnregBuilder().setAddress(String.valueOf(metadataIpPrefix.getValue()))
 355                         .setAddressType(IpPrefixType.class)
 356                         .setContextType(MappingUtils.L3_CONTEXT);
 357             if (routerInterfAdded) {
 358                 metadataEpUnreg.setContextId(new ContextId(networkId.getValue()));
 359             } else {
 360                 metadataEpUnreg.setContextId(new ContextId(routerId.getValue()));
 361             }
 362             epRegistrator.unregisterEndpoint(metadataEpUnreg.build());
 363         }
 364         Set<Port> portsInSameSubnet = PortUtils.findPortsBySubnet(subnetUuid, neutron.getPorts());
 365         for (Port portInSameSubnet : portsInSameSubnet) {
 366             if (PortUtils.isNormalPort(portInSameSubnet) || PortUtils.isDhcpPort(portInSameSubnet)
 367                     || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
 368                 // endpoints are created only from neutron normal port or DHCP port
 369                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(portInSameSubnet);
 370                 if (firstFixedIps.isPresent()) {
 371                     // endpoint has only one network containment therefore only first IP is used
 372                     FixedIps ipWithSubnet = firstFixedIps.get();
 373                     List<EndpointGroupId> endpointGroupIds = new ArrayList<>();
 374                     if (PortUtils.isDhcpPort(portInSameSubnet)
 375                             || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
 376                         endpointGroupIds.add(NetworkService.EPG_ID);
 377                     } else if (PortUtils.isNormalPort(portInSameSubnet)) {
 378                         endpointGroupIds.add(NetworkClient.EPG_ID);
 379                     }
 380                     NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 381                     AddressEndpointRegBuilder l2BaseEp =
 382                             createBasicMacAddrEpInputBuilder(portInSameSubnet, networkContainment, endpointGroupIds);
 383                     AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(portInSameSubnet,
 384                             networkContainment, endpointGroupIds, neutron);
 385
 386                     setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 387                     AddressEndpointUnregBuilder addrEpUnreg =
 388                             new AddressEndpointUnregBuilder().setAddress(l3BaseEp.getAddress())
 389                                 .setAddressType(l3BaseEp.getAddressType())
 390                                 .setContextType(l3BaseEp.getContextType());
 391                     if (routerInterfAdded) {
 392                         addrEpUnreg.setContextId(new ContextId(networkId.getValue()));
 393                     } else {
 394                         addrEpUnreg.setContextId(new ContextId(routerId.getValue()));
 395                     }
 396                     epRegistrator.unregisterEndpoint(addrEpUnreg.build());
 397                     if (routerInterfAdded) {
 398                         l3BaseEp.setContextId(new ContextId(routerId.getValue()));
 399                     } else {
 400                         l3BaseEp.setContextId(new ContextId(networkId.getValue()));
 401                     }
 402                     setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 403                     RegisterEndpointInput regBaseEpInput = new RegisterEndpointInputBuilder()
 404                         .setAddressEndpointReg(ImmutableList.of(l2BaseEp.build(), l3BaseEp.build())).build();
 405                     epRegistrator.registerEndpoint(regBaseEpInput);
 406                     if (PortUtils.isDhcpPort(portInSameSubnet)) {
 407                         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 408                         registerMetadataServiceForDhcpPort(portInSameSubnet, neutron, l2BaseEp, rwTx, false);
 409                         DataStoreHelper.submitToDs(rwTx);
 410                     }
 411                     modifyL3ContextForEndpoints(portInSameSubnet, ipWithSubnet, l3BaseEp.getContextId());
 412                 }
 413             }
 414         }
 415     }
 416
 417     private ChildEndpoint createChildEndpoint(AddressEndpointRegBuilder builder) {
 418         return new ChildEndpointBuilder().setAddress(builder.getAddress())
 419             .setAddressType(builder.getAddressType())
 420             .setContextId(builder.getContextId())
 421             .setContextType(builder.getContextType())
 422             .build();
 423     }
 424
 425     private ParentEndpoint createParentEndpoint(AddressEndpointRegBuilder builder) {
 426         return new ParentEndpointBuilder().setAddress(builder.getAddress())
 427             .setAddressType(builder.getAddressType())
 428             .setContextId(builder.getContextId())
 429             .setContextType(builder.getContextType())
 430             .build();
 431     }
 432
 433     @Deprecated
 434     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 435                                                // this will be removed when deprecated classes will be cleared.
 436     private void modifyL3ContextForEndpoints(Port port, FixedIps resolvedPortFixedIp, ContextId newContextId) {
 437         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 438                 createBasicEndpointInputBuilder(port);
 439         epInBuilder.setNetworkContainment(new NetworkDomainId(resolvedPortFixedIp.getSubnetId().getValue()));
 440         L3Address l3Address = new L3AddressBuilder().setL3Context(new L3ContextId(newContextId))
 441             .setIpAddress(resolvedPortFixedIp.getIpAddress())
 442             .build();
 443         epInBuilder.setL3Address(ImmutableList.of(l3Address));
 444         List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 445         epgsFromSecGroups.add(NetworkClient.EPG_ID);
 446         epInBuilder.setEndpointGroups(epgsFromSecGroups);
 447         epRegistrator.registerEndpoint(epInBuilder.build());
 448         // unregister L3EP
 449         L3ContextId oldL3Context = new L3ContextId(port.getNetworkId().getValue());
 450         L3 l3 = new L3Builder().setL3Context(oldL3Context).setIpAddress(resolvedPortFixedIp.getIpAddress()).build();
 451         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput epUnreg =
 452                 new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder()
 453                     .setL3(ImmutableList.of(l3)).build();
 454         epRegistrator.unregisterEndpoint(epUnreg);
 455     }
 456
 457     private AddressEndpointRegBuilder createBasicMacAddrEpInputBuilder(Port port, NetworkDomainId networkContainment,
 458             @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 459         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 460             .setAddress(port.getMacAddress().getValue())
 461             .setAddressType(MacAddressType.class)
 462             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 463             .setContextId(new ContextId(port.getNetworkId().getValue()))
 464             .setTenant(new TenantId(port.getTenantId().getValue()))
 465             .setTimestamp(System.currentTimeMillis());
 466         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 467         addrEpbuilder.setEndpointGroup(epgs);
 468         if (networkContainment != null) {
 469             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder()
 470                 .setContainment(new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 471                     .setNetworkDomainType(MappingUtils.SUBNET)
 472                     .build())
 473                 .build());
 474         }
 475         return addrEpbuilder;
 476     }
 477
 478     private AddressEndpointRegBuilder createBasicL3AddrEpInputBuilder(Port port, NetworkDomainId networkContainment,
 479             @Nullable List<EndpointGroupId> endpointGroupsToAdd, Neutron neutron) {
 480         Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 481         if (!firstFixedIps.isPresent()) {
 482             throw new IllegalStateException(
 483                     "Failed to resolve FixedIps for port " + port.getKey() + ". Cannot register L3 Address endpoint.");
 484         }
 485         ContextId resolveL3ContextForPort = resolveL3ContextForPort(port, port.getFixedIps().get(0), neutron);
 486
 487         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 488             .setAddress(MappingUtils.ipAddressToStringIpPrefix(firstFixedIps.get().getIpAddress()))
 489             .setAddressType(IpPrefixType.class)
 490             .setContextType(MappingUtils.L3_CONTEXT)
 491             .setContextId(resolveL3ContextForPort)
 492             .setTenant(new TenantId(port.getTenantId().getValue()))
 493             .setTimestamp(System.currentTimeMillis());
 494         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 495         addrEpbuilder.setEndpointGroup(epgs);
 496         if (networkContainment != null) {
 497             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder()
 498                 .setContainment(new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 499                     .setNetworkDomainType(MappingUtils.SUBNET)
 500                     .build())
 501                 .build());
 502         }
 503         return addrEpbuilder;
 504     }
 505
 506     private List<EndpointGroupId> concatEndpointGroups(List<Uuid> securityGroups,
 507             @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 508         List<EndpointGroupId> epgs = new ArrayList<>();
 509         if (securityGroups != null) {
 510             for (Uuid sgId : securityGroups) {
 511                 epgs.add(new EndpointGroupId(sgId.getValue()));
 512             }
 513         }
 514         if (endpointGroupsToAdd != null) {
 515             epgs.addAll(endpointGroupsToAdd);
 516         }
 517         return epgs;
 518     }
 519
 520     @Deprecated
 521     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 522                                                // this will be removed when deprecated classes will be cleared.
 523     private static org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createBasicEndpointInputBuilder(
 524             Port port) {
 525         return new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder()
 526             .setL2Context(new L2BridgeDomainId(port.getNetworkId().getValue()))
 527             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 528             .setTenant(new TenantId(port.getTenantId().getValue()))
 529             .setTimestamp(System.currentTimeMillis());
 530     }
 531
 532     private static List<EndpointGroupId> resolveEpgIdsFromSecGroups(@Nullable List<Uuid> securityGroups) {
 533         List<EndpointGroupId> epgIds = new ArrayList<>();
 534         if ((securityGroups == null || securityGroups.isEmpty())) {
 535             return epgIds;
 536         }
 537         for (Uuid secGrp : securityGroups) {
 538             epgIds.add(new EndpointGroupId(secGrp.getValue()));
 539         }
 540         return epgIds;
 541     }
 542
 543     @Deprecated
 544     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 545                                                // this will be removed when deprecated classes will be cleared.
 546     private void registerEndpointAndStoreMapping(
 547             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInput regEpInput,
 548             Port port, ReadWriteTransaction rwTx) {
 549         boolean isRegisteredEndpoint = epRegistrator.registerEndpoint(regEpInput);
 550         if (!isRegisteredEndpoint) {
 551             LOG.error("Failed to register endpoint: {}", regEpInput);
 552             return;
 553         }
 554         UniqueId portId = new UniqueId(port.getUuid().getValue());
 555         EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()),
 556                 new MacAddress(port.getMacAddress().getValue()));
 557         LOG.trace("Adding Port-Endpoint mapping for port {} (device owner {}) and endpoint {}",
 558                 port.getUuid().getValue(), port.getDeviceOwner(), epKey);
 559         EndpointByPort endpointByPort = MappingFactory.createEndpointByPort(epKey, portId);
 560         rwTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.endpointByPortIid(portId), endpointByPort,
 561                 true);
 562         PortByEndpoint portByEndpoint = MappingFactory.createPortByEndpoint(portId, epKey);
 563         rwTx.put(LogicalDatastoreType.OPERATIONAL,
 564                 NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), portByEndpoint,
 565                 true);
 566     }
 567
 568     @Deprecated
 569     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 570                                                // this will be removed when deprecated classes will be cleared.
 571     private void unregisterEndpointAndRemoveMapping(
 572             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput unregEpInput,
 573             Port port, ReadWriteTransaction rwTx) {
 574         boolean isUnregisteredEndpoint = epRegistrator.unregisterEndpoint(unregEpInput);
 575         if (isUnregisteredEndpoint) {
 576             UniqueId portId = new UniqueId(port.getUuid().getValue());
 577             EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()),
 578                     new MacAddress(port.getMacAddress().getValue()));
 579             LOG.trace("Removing Port-Endpoint mapping for port {} (device owner {}) and endpoint {}",
 580                     port.getUuid().getValue(), port.getDeviceOwner(), epKey);
 581             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 582                     NeutronGbpIidFactory.endpointByPortIid(portId), rwTx);
 583             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 584                     NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), rwTx);
 585         }
 586     }
 587
 588     private void unregisterEndpointAndRemoveMapping(UnregisterEndpointInput baseEpUnreg, Port port,
 589         ReadWriteTransaction rwTx, boolean removeBaseEpMappings) {
 590         boolean isUnregisteredBaseEndpoint = epRegistrator.unregisterEndpoint(baseEpUnreg);
 591         if (isUnregisteredBaseEndpoint) {
 592             UniqueId portId = new UniqueId(port.getUuid().getValue());
 593             PortByBaseEndpointKey portByBaseEndpointKey = new PortByBaseEndpointKey(port.getMacAddress().getValue(),
 594                 MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 595             LOG.trace("Removing Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 596                 port.getUuid().getValue(), port.getDeviceOwner(), portByBaseEndpointKey);
 597             if (removeBaseEpMappings) {
 598                 removeBaseEndpointMappings(portByBaseEndpointKey, portId, rwTx);
 599             }
 600         }
 601     }
 602
 603     private void registerBaseEndpointAndStoreMapping(List<AddressEndpointReg> addrEpRegs, Port port,
 604             WriteTransaction writeTx, boolean addBaseEpMappings) {
 605         RegisterEndpointInput regBaseEpInput =
 606                 new RegisterEndpointInputBuilder().setAddressEndpointReg(addrEpRegs).build();
 607
 608         boolean isRegisteredBaseEndpoint = epRegistrator.registerEndpoint(regBaseEpInput);
 609         if (!isRegisteredBaseEndpoint) {
 610             LOG.error("Failed to register address endpoint: {}", addrEpRegs);
 611             return;
 612         }
 613         for (AddressEndpointReg addrEpReg : addrEpRegs) {
 614             if (MappingUtils.L2_BRDIGE_DOMAIN.equals(addrEpReg.getContextType()) && addBaseEpMappings) {
 615                 UniqueId portId = new UniqueId(port.getUuid().getValue());
 616                 LOG.trace("Adding Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 617                         port.getUuid());
 618                 AddressEndpointKey addrEpKey = new AddressEndpointKey(addrEpReg.getAddress(),
 619                         addrEpReg.getAddressType(), addrEpReg.getContextId(), addrEpReg.getContextType());
 620                 addBaseEndpointMappings(addrEpKey, portId, writeTx);
 621             }
 622         }
 623     }
 624
 625     private void addBaseEndpointMappings(AddressEndpointKey addrEpKey, UniqueId portId, WriteTransaction writeTx) {
 626         BaseEndpointByPort baseEndpointByPort = MappingFactory.createBaseEndpointByPort(addrEpKey, portId);
 627         writeTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.baseEndpointByPortIid(portId),
 628                 baseEndpointByPort, true);
 629         PortByBaseEndpoint portByBaseEndpoint = MappingFactory.createPortByBaseEndpoint(portId, addrEpKey);
 630         writeTx.put(LogicalDatastoreType.OPERATIONAL,
 631                 NeutronGbpIidFactory.portByBaseEndpointIid(new PortByBaseEndpointKey(portByBaseEndpoint.getKey())),
 632                 portByBaseEndpoint, true);
 633     }
 634
 635     private void removeBaseEndpointMappings(PortByBaseEndpointKey portByBaseEndpointKey, UniqueId portId,
 636             ReadWriteTransaction rwTx) {
 637         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 638                 NeutronGbpIidFactory.baseEndpointByPortIid(portId), rwTx);
 639         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 640                 NeutronGbpIidFactory.portByBaseEndpointIid(portByBaseEndpointKey), rwTx);
 641     }
 642
 643     @Override
 644     public void onUpdated(Port oldPort, Port newPort, Neutron oldNeutron, Neutron newNeutron) {
 645         LOG.trace("updated port - OLD: {}\nNEW: {}", oldPort, newPort);
 646         onDeleted(oldPort, oldNeutron, newNeutron, false);
 647         onCreated(newPort, newNeutron, false);
 648     }
 649
 650     @Override
 651     public void onDeleted(Port deletedItem, Neutron oldNeutron, Neutron newNeutron) {
 652         onDeleted(deletedItem, oldNeutron, newNeutron, true);
 653     }
 654
 655     public void onDeleted(Port port, Neutron oldNeutron, Neutron newNeutron, boolean removeBaseEpMapping) {
 656         LOG.trace("deleted port - {}", port);
 657         if (PortUtils.isRouterInterfacePort(port)) {
 658             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 659             // router interface port can have only one IP
 660             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 661             if (!potentialPortIpWithSubnet.isPresent()) {
 662                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}", port);
 663                 return;
 664             }
 665             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 666             L3ContextId l3Context = new L3ContextId(port.getNetworkId().getValue());
 667             // change L3Context for all new EPs with same subnet as router port
 668             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), port.getNetworkId(),
 669                     new Uuid(port.getDeviceId()), newNeutron, false);
 670             // set L3Context as parent for bridge domain which is parent of subnet
 671             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 672             Optional<Subnet> potentialRouterPortSubnet =
 673                     SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(), oldNeutron.getSubnets());
 674             if (!potentialRouterPortSubnet.isPresent()) {
 675                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}", port);
 676                 return;
 677             }
 678             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 679             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 680             modifyForwardingOnDelete(routerPortSubnet, l3Context, tenantId, rwTx);
 681             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 682             ForwardingContext fwdCtx = new ForwardingContextBuilder().setContextId(l2BdId)
 683                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 684                 .setParent(MappingUtils.createParent(l3Context, MappingUtils.L3_CONTEXT))
 685                 .build();
 686             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
 687                     L2L3IidFactory.l2BridgeDomainIid(tenantId, fwdCtx.getContextId()), fwdCtx);
 688             NetworkDomain subnet = NeutronSubnetAware.createSubnet(routerPortSubnet, newNeutron, null);
 689             rwTx.put(LogicalDatastoreType.CONFIGURATION,
 690                     L2L3IidFactory.subnetIid(tenantId, subnet.getNetworkDomainId()), subnet);
 691             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 692             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 693                     removeBaseEpMapping);
 694             DataStoreHelper.submitToDs(rwTx);
 695         } else if (PortUtils.isDhcpPort(port)) {
 696             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 697             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 698             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 699             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 700                     removeBaseEpMapping);
 701             DataStoreHelper.submitToDs(rwTx);
 702             if (!oldNeutron.getPorts()
 703                 .getPort()
 704                 .stream()
 705                 .filter(PortUtils::isDhcpPort)
 706                 .anyMatch(p -> !p.getUuid().equals(port.getUuid()))) {
 707                 Port metadataPort = cloneMetadataPortFromDhcpPort(port, metadataIpPrefix);
 708                 if (PortUtils.resolveFirstFixedIps(metadataPort).isPresent()) {
 709                     ContextId metadataCtx = resolveL3ContextForPort(metadataPort,
 710                             PortUtils.resolveFirstFixedIps(metadataPort).get(), oldNeutron);
 711                     AddressEndpointUnregBuilder metadataEpUnreg =
 712                             new AddressEndpointUnregBuilder().setAddress(String.valueOf(metadataIpPrefix.getValue()))
 713                                 .setAddressType(IpPrefixType.class)
 714                                 .setContextType(MappingUtils.L3_CONTEXT)
 715                                 .setContextId(metadataCtx);
 716                     epRegistrator.unregisterEndpoint(metadataEpUnreg.build());
 717                 }
 718             }
 719         } else if (PortUtils.isNormalPort(port)) {
 720             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 721             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 722             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 723             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 724                     removeBaseEpMapping);
 725             DataStoreHelper.submitToDs(rwTx);
 726         } else if (PortUtils.isRouterGatewayPort(port)) {
 727             // do nothing because actual trigger is detaching of port from router
 728             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 729         } else if (PortUtils.isFloatingIpPort(port)) {
 730             // do nothing because trigger is floating IP
 731             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 732         } else {
 733             LOG.warn("Unknown port: {}", port);
 734         }
 735     }
 736
 737     @Deprecated
 738     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 739                                                // this will be removed when deprecated classes will be cleared.
 740     private void modifyForwardingOnDelete(Subnet routerPortSubnet, L3ContextId l3contextId, TenantId tenantId,
 741             ReadWriteTransaction rwTx) {
 742         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 743         L2BridgeDomain l2Bd = new L2BridgeDomainBuilder().setId(l2BdId).setParent(l3contextId).build();
 744         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd);
 745         // remove virtual router IP for subnet
 746         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet tenantSubnet =
 747                 NeutronSubnetAware.createTenantSubnet(routerPortSubnet, null);
 748         rwTx.put(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, tenantSubnet.getId()),
 749                 tenantSubnet);
 750     }
 751
 752     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 753                                                // this will be removed when deprecated classes will be cleared.
 754     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput createUnregisterBaseEndpointInput(
 755             Port port, Neutron neutron) {
 756         List<AddressEndpointUnreg> list = new ArrayList<>();
 757         AddressEndpointUnregBuilder addrL2EpUnregBuilder = new AddressEndpointUnregBuilder();
 758         addrL2EpUnregBuilder.setAddress(port.getMacAddress().getValue())
 759             .setAddressType(MacAddressType.class)
 760             .setContextId(new ContextId(port.getNetworkId().getValue()))
 761             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN);
 762         list.add(addrL2EpUnregBuilder.build());
 763         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 764         if (potentialFirstIp.isPresent()) {
 765             ContextId l3ContextId = resolveL3ContextForPort(port, potentialFirstIp.get(), neutron);
 766             AddressEndpointUnregBuilder addrL3EpUnregBuilder = new AddressEndpointUnregBuilder();
 767             addrL3EpUnregBuilder
 768                 .setAddress(MappingUtils.ipAddressToStringIpPrefix(potentialFirstIp.get().getIpAddress()))
 769                 .setAddressType(IpPrefixType.class)
 770                 .setContextId(l3ContextId)
 771                 .setContextType(L3Context.class);
 772             list.add(addrL3EpUnregBuilder.build());
 773         }
 774         UnregisterEndpointInputBuilder inputBuilder = new UnregisterEndpointInputBuilder();
 775         inputBuilder.setAddressEndpointUnreg(list);
 776         return inputBuilder.build();
 777     }
 778
 779     @Deprecated
 780     @SuppressWarnings("checkstyle:LineLength") // Longer lines in this method are caused by long package names,
 781                                                // this will be removed when deprecated classes will be cleared.
 782     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput createUnregisterEndpointInput(
 783             Port port, Neutron neutron) {
 784         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder inputBuilder =
 785                 new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder();
 786         L2 l2Ep = new L2Builder().setL2Context(new L2BridgeDomainId(port.getNetworkId().getValue()))
 787             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 788             .build();
 789         inputBuilder.setL2(ImmutableList.of(l2Ep));
 790         // we've registered EP with only first IP so remove only EP with first IP
 791         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 792         if (potentialFirstIp.isPresent()) {
 793             FixedIps firstIp = potentialFirstIp.get();
 794             L3Address l3Address = resolveL3AddressFromPort(port, firstIp, neutron);
 795             L3 l3 = new L3Builder().setIpAddress(l3Address.getIpAddress())
 796                 .setL3Context(l3Address.getL3Context())
 797                 .build();
 798             inputBuilder.setL3(ImmutableList.of(l3));
 799         }
 800         return inputBuilder.build();
 801     }
 802
 803     @Deprecated
 804     private static L3Address resolveL3AddressFromPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 805         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 806         for (Port routerIfacePort : routerIfacePorts) {
 807             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 808             // if port is in the same subnet as router interface then we want to use L3Context of
 809             // router
 810             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 811                 L3ContextId epL3ContextId = new L3ContextId(routerIfacePort.getDeviceId());
 812                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 813                 return new L3AddressBuilder().setL3Context(epL3ContextId)
 814                     .setIpAddress(portFixedIPs.getIpAddress())
 815                     .build();
 816             }
 817         }
 818         return new L3AddressBuilder().setL3Context(new L3ContextId(port.getNetworkId().getValue()))
 819             .setIpAddress(portFixedIPs.getIpAddress())
 820             .build();
 821     }
 822
 823     private static ContextId resolveL3ContextForPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 824         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 825         for (Port routerIfacePort : routerIfacePorts) {
 826             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 827             // if port is in the same subnet as router interface then we want to use L3Context of
 828             // router
 829             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 830                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 831                 return new ContextId(routerIfacePort.getDeviceId());
 832             }
 833         }
 834         return new ContextId(port.getNetworkId().getValue());
 835     }
 836 }