qosservice/impl/src/main/java/org/opendaylight/netvirt/qosservice/QosNeutronUtils.java

   1 /*
   2  * Copyright (c) 2017 Intel Corporation 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.netvirt.qosservice;
   9
  10 import com.google.common.base.Optional;
  11 import java.math.BigInteger;
  12 import java.util.ArrayList;
  13 import java.util.Collection;
  14 import java.util.Collections;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.concurrent.ConcurrentHashMap;
  18 import java.util.concurrent.ConcurrentMap;
  19 import java.util.concurrent.CopyOnWriteArraySet;
  20 import java.util.concurrent.ExecutionException;
  21 import java.util.concurrent.Future;
  22 import javax.annotation.Nonnull;
  23 import javax.annotation.Nullable;
  24 import javax.inject.Inject;
  25 import javax.inject.Singleton;
  26 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  27 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  28 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  29 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  30 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  31 import org.opendaylight.genius.mdsalutil.ActionInfo;
  32 import org.opendaylight.genius.mdsalutil.FlowEntity;
  33 import org.opendaylight.genius.mdsalutil.InstructionInfo;
  34 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  35 import org.opendaylight.genius.mdsalutil.MatchInfo;
  36 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  37 import org.opendaylight.genius.mdsalutil.NwConstants;
  38 import org.opendaylight.genius.mdsalutil.actions.ActionNxResubmit;
  39 import org.opendaylight.genius.mdsalutil.actions.ActionSetFieldDscp;
  40 import org.opendaylight.genius.mdsalutil.instructions.InstructionApplyActions;
  41 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  42 import org.opendaylight.genius.mdsalutil.matches.MatchEthernetType;
  43 import org.opendaylight.genius.mdsalutil.matches.MatchMetadata;
  44 import org.opendaylight.genius.utils.ServiceIndex;
  45 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  46 import org.opendaylight.netvirt.neutronvpn.interfaces.INeutronVpnManager;
  47 import org.opendaylight.ovsdb.utils.southbound.utils.SouthboundUtils;
  48 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  49 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  50 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.BridgeInterfaceInfo;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.BridgeRefInfo;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntry;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntryKey;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge.ref.info.BridgeRefEntry;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge.ref.info.BridgeRefEntryKey;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceInput;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceInputBuilder;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceOutput;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceBindings;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceModeIngress;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceTypeFlowBased;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.StypeOpenflow;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.StypeOpenflowBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.ServicesInfo;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.ServicesInfoKey;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServices;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServicesBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServicesKey;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.NetworkMaps;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.Subnetmaps;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.networkmaps.NetworkMap;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.networkmaps.NetworkMapKey;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.SubnetmapKey;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.networks.rev150712.networks.attributes.networks.Network;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.ext.rev160613.QosNetworkExtension;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.ext.rev160613.QosPortExtension;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.rev160613.qos.attributes.qos.policies.QosPolicy;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.rev160613.qos.attributes.qos.policies.qos.policy.BandwidthLimitRules;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.rev160613.qos.attributes.qos.policies.qos.policy.BandwidthLimitRulesBuilder;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.rev160613.qos.attributes.qos.policies.qos.policy.DscpmarkingRules;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentationBuilder;
  92 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  93 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  94 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  95 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  96 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  97 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointBuilder;
  98 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  99 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 100 import org.opendaylight.yangtools.yang.common.RpcResult;
 101 import org.slf4j.Logger;
 102 import org.slf4j.LoggerFactory;
 103
 104 @Singleton
 105 public class QosNeutronUtils {
 106     private static final Logger LOG = LoggerFactory.getLogger(QosNeutronUtils.class);
 107
 108     private final ConcurrentMap<Uuid, QosPolicy> qosPolicyMap = new ConcurrentHashMap<>();
 109     private final ConcurrentMap<Uuid, ConcurrentMap<Uuid, Port>> qosPortsMap = new ConcurrentHashMap<>();
 110     private final ConcurrentMap<Uuid, ConcurrentMap<Uuid, Network>> qosNetworksMap = new ConcurrentHashMap<>();
 111     private final CopyOnWriteArraySet<Uuid> qosServiceConfiguredPorts = new CopyOnWriteArraySet<>();
 112     private final ConcurrentHashMap<Uuid, Port> neutronPortMap = new ConcurrentHashMap<>();
 113     private final ConcurrentHashMap<Uuid, Network> neutronNetworkMap = new ConcurrentHashMap<>();
 114
 115     private final QosEosHandler qosEosHandler;
 116     private final INeutronVpnManager neutronVpnManager;
 117     private final OdlInterfaceRpcService odlInterfaceRpcService;
 118     private final DataBroker dataBroker;
 119     private final ManagedNewTransactionRunner txRunner;
 120     private final IMdsalApiManager mdsalUtils;
 121     private final JobCoordinator jobCoordinator;
 122
 123     @Inject
 124     public QosNeutronUtils(final QosEosHandler qosEosHandler, final INeutronVpnManager neutronVpnManager,
 125             final OdlInterfaceRpcService odlInterfaceRpcService, final DataBroker dataBroker,
 126             final IMdsalApiManager mdsalUtils, final JobCoordinator jobCoordinator) {
 127         this.qosEosHandler = qosEosHandler;
 128         this.neutronVpnManager = neutronVpnManager;
 129         this.odlInterfaceRpcService = odlInterfaceRpcService;
 130         this.dataBroker = dataBroker;
 131         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
 132         this.mdsalUtils = mdsalUtils;
 133         this.jobCoordinator = jobCoordinator;
 134     }
 135
 136     public void addToQosPolicyCache(QosPolicy qosPolicy) {
 137         qosPolicyMap.put(qosPolicy.getUuid(),qosPolicy);
 138     }
 139
 140     public void removeFromQosPolicyCache(QosPolicy qosPolicy) {
 141         qosPolicyMap.remove(qosPolicy.getUuid());
 142     }
 143
 144     public Map<Uuid, QosPolicy> getQosPolicyMap() {
 145         return qosPolicyMap;
 146     }
 147
 148     public Collection<Port> getQosPorts(Uuid qosUuid) {
 149         final ConcurrentMap<Uuid, Port> portMap = qosPortsMap.get(qosUuid);
 150         return portMap != null ? portMap.values() : Collections.emptyList();
 151     }
 152
 153     public void addToQosPortsCache(Uuid qosUuid, Port port) {
 154         qosPortsMap.computeIfAbsent(qosUuid, key -> new ConcurrentHashMap<>()).putIfAbsent(port.getUuid(), port);
 155     }
 156
 157     public void removeFromQosPortsCache(Uuid qosUuid, Port port) {
 158         if (qosPortsMap.containsKey(qosUuid) && qosPortsMap.get(qosUuid).containsKey(port.getUuid())) {
 159             qosPortsMap.get(qosUuid).remove(port.getUuid(), port);
 160         }
 161     }
 162
 163     public void addToQosNetworksCache(Uuid qosUuid, Network network) {
 164         qosNetworksMap.computeIfAbsent(qosUuid, key -> new ConcurrentHashMap<>()).putIfAbsent(network.getUuid(),
 165                 network);
 166     }
 167
 168     public void removeFromQosNetworksCache(Uuid qosUuid, Network network) {
 169         if (qosNetworksMap.containsKey(qosUuid) && qosNetworksMap.get(qosUuid).containsKey(network.getUuid())) {
 170             qosNetworksMap.get(qosUuid).remove(network.getUuid(), network);
 171         }
 172     }
 173
 174     @Nonnull
 175     public Collection<Network> getQosNetworks(Uuid qosUuid) {
 176         final ConcurrentMap<Uuid, Network> networkMap = qosNetworksMap.get(qosUuid);
 177         return networkMap != null ? networkMap.values() : Collections.emptyList();
 178     }
 179
 180     @Nonnull
 181     public List<Uuid> getSubnetIdsFromNetworkId(Uuid networkId) {
 182         InstanceIdentifier<NetworkMap> networkMapId = InstanceIdentifier.builder(NetworkMaps.class)
 183                 .child(NetworkMap.class, new NetworkMapKey(networkId)).build();
 184         Optional<NetworkMap> optionalNetworkMap = MDSALUtil.read(LogicalDatastoreType.CONFIGURATION,
 185                 networkMapId, dataBroker);
 186         return optionalNetworkMap.isPresent() ? optionalNetworkMap.get().getSubnetIdList() : Collections.emptyList();
 187     }
 188
 189     @Nonnull
 190     protected List<Uuid> getPortIdsFromSubnetId(Uuid subnetId) {
 191         InstanceIdentifier<Subnetmap> subnetMapId = InstanceIdentifier
 192                 .builder(Subnetmaps.class)
 193                 .child(Subnetmap.class, new SubnetmapKey(subnetId)).build();
 194         Optional<Subnetmap> optionalSubnetmap = MDSALUtil.read(LogicalDatastoreType.CONFIGURATION,
 195                 subnetMapId,dataBroker);
 196         return optionalSubnetmap.isPresent() ? optionalSubnetmap.get().getPortList() : Collections.emptyList();
 197     }
 198
 199     public void handleNeutronPortQosAdd(Port port, Uuid qosUuid) {
 200         LOG.trace("Handling Port add and QoS associated: port: {} qos: {}", port.getUuid(), qosUuid);
 201
 202         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 203
 204         jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(),
 205             () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 206                 // handle Bandwidth Limit Rules update
 207                 if (qosPolicy != null && qosPolicy.getBandwidthLimitRules() != null
 208                         && !qosPolicy.getBandwidthLimitRules().isEmpty()) {
 209                     setPortBandwidthLimits(port, qosPolicy.getBandwidthLimitRules().get(0), tx);
 210                 }
 211                 // handle DSCP Mark Rules update
 212                 if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 213                         && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 214                     setPortDscpMarking(port, qosPolicy.getDscpmarkingRules().get(0));
 215                 }
 216             })));
 217     }
 218
 219     public void handleQosInterfaceAdd(Port port, Uuid qosUuid) {
 220         LOG.trace("Handling Port add and QoS associated: port: {} qos: {}", port.getUuid(), qosUuid);
 221
 222         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 223
 224         jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(), () -> {
 225             // handle DSCP Mark Rules update
 226             if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 227                     && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 228                 setPortDscpMarking(port, qosPolicy.getDscpmarkingRules().get(0));
 229             }
 230             return Collections.emptyList();
 231         });
 232     }
 233
 234     public void handleNeutronPortQosUpdate(Port port, Uuid qosUuidNew, Uuid qosUuidOld) {
 235         LOG.trace("Handling Port QoS update: port: {} qosservice: {}", port.getUuid(), qosUuidNew);
 236
 237         QosPolicy qosPolicyNew = qosPolicyMap.get(qosUuidNew);
 238         QosPolicy qosPolicyOld = qosPolicyMap.get(qosUuidOld);
 239
 240         jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(),
 241             () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 242                 // handle Bandwidth Limit Rules update
 243                 if (qosPolicyNew != null && qosPolicyNew.getBandwidthLimitRules() != null
 244                         && !qosPolicyNew.getBandwidthLimitRules().isEmpty()) {
 245                     setPortBandwidthLimits(port, qosPolicyNew.getBandwidthLimitRules().get(0), tx);
 246                 } else {
 247                     if (qosPolicyOld != null && qosPolicyOld.getBandwidthLimitRules() != null
 248                             && !qosPolicyOld.getBandwidthLimitRules().isEmpty()) {
 249                         BandwidthLimitRulesBuilder bwLimitBuilder = new BandwidthLimitRulesBuilder();
 250                         setPortBandwidthLimits(port, bwLimitBuilder
 251                                 .setMaxBurstKbps(BigInteger.ZERO)
 252                                 .setMaxKbps(BigInteger.ZERO).build(), tx);
 253                     }
 254                 }
 255                 //handle DSCP Mark Rules update
 256                 if (qosPolicyNew != null && qosPolicyNew.getDscpmarkingRules() != null
 257                         && !qosPolicyNew.getDscpmarkingRules().isEmpty()) {
 258                     setPortDscpMarking(port, qosPolicyNew.getDscpmarkingRules().get(0));
 259                 } else {
 260                     if (qosPolicyOld != null && qosPolicyOld.getDscpmarkingRules() != null
 261                             && !qosPolicyOld.getDscpmarkingRules().isEmpty()) {
 262                         unsetPortDscpMark(port);
 263                     }
 264                 }
 265             })));
 266     }
 267
 268     public void handleNeutronPortQosRemove(Port port, Uuid qosUuid) {
 269         LOG.trace("Handling Port QoS removal: port: {} qosservice: {}", port.getUuid(), qosUuid);
 270
 271         // check for network qosservice to apply
 272         Network network =  neutronVpnManager.getNeutronNetwork(port.getNetworkId());
 273         if (network != null && network.augmentation(QosNetworkExtension.class) != null) {
 274             Uuid networkQosUuid = network.augmentation(QosNetworkExtension.class).getQosPolicyId();
 275             if (networkQosUuid != null) {
 276                 handleNeutronPortQosUpdate(port, networkQosUuid, qosUuid);
 277             }
 278         } else {
 279             QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 280
 281             jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(),
 282                 () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 283                     // handle Bandwidth Limit Rules removal
 284                     if (qosPolicy != null && qosPolicy.getBandwidthLimitRules() != null
 285                             && !qosPolicy.getBandwidthLimitRules().isEmpty()) {
 286                         BandwidthLimitRulesBuilder bwLimitBuilder = new BandwidthLimitRulesBuilder();
 287                         setPortBandwidthLimits(port, bwLimitBuilder
 288                                 .setMaxBurstKbps(BigInteger.ZERO)
 289                                 .setMaxKbps(BigInteger.ZERO).build(), tx);
 290                     }
 291                     // handle DSCP MArk Rules removal
 292                     if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 293                             && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 294                         unsetPortDscpMark(port);
 295                     }
 296                 })));
 297         }
 298     }
 299
 300     public void handleNeutronPortRemove(Port port, Uuid qosUuid) {
 301         LOG.trace("Handling Port removal and Qos associated: port: {} qos: {}", port.getUuid(), qosUuid);
 302         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 303
 304         jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(), () -> {
 305             //check if any DSCP rule in the policy
 306             if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 307                     && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 308                 unsetPortDscpMark(port);
 309             }
 310             return Collections.emptyList();
 311         });
 312     }
 313
 314     public void handleNeutronPortRemove(Port port, Uuid qosUuid, Interface intrf) {
 315         LOG.trace("Handling Port removal and Qos associated: port: {} qos: {}", port.getUuid(), qosUuid);
 316         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 317
 318         jobCoordinator.enqueueJob("QosPort-" + port.getUuid().getValue(), () -> {
 319             if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 320                     && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 321                 unsetPortDscpMark(port, intrf);
 322             }
 323             return Collections.emptyList();
 324         });
 325     }
 326
 327
 328     public void handleNeutronNetworkQosUpdate(Network network, Uuid qosUuid) {
 329         LOG.trace("Handling Network QoS update: net: {} qosservice: {}", network.getUuid(), qosUuid);
 330         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 331         if (qosPolicy == null || (qosPolicy.getBandwidthLimitRules() == null
 332                 || qosPolicy.getBandwidthLimitRules().isEmpty())
 333                 && (qosPolicy.getDscpmarkingRules() == null
 334                 || qosPolicy.getDscpmarkingRules().isEmpty())) {
 335             return;
 336         }
 337         List<Uuid> subnetIds = getSubnetIdsFromNetworkId(network.getUuid());
 338         for (Uuid subnetId : subnetIds) {
 339             List<Uuid> portIds = getPortIdsFromSubnetId(subnetId);
 340             for (Uuid portId : portIds) {
 341                 Port port = getNeutronPort(portId);
 342                 if (port != null && (port.augmentation(QosPortExtension.class) == null
 343                         || port.augmentation(QosPortExtension.class).getQosPolicyId() == null)) {
 344                     jobCoordinator.enqueueJob("QosPort-" + portId.getValue(),
 345                         () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 346                             if (qosPolicy.getBandwidthLimitRules() != null
 347                                     && !qosPolicy.getBandwidthLimitRules().isEmpty()) {
 348                                 setPortBandwidthLimits(port, qosPolicy.getBandwidthLimitRules().get(0), tx);
 349                             }
 350                             if (qosPolicy.getDscpmarkingRules() != null
 351                                     && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 352                                 setPortDscpMarking(port, qosPolicy.getDscpmarkingRules().get(0));
 353                             }
 354                         })));
 355                 }
 356             }
 357         }
 358     }
 359
 360     public void handleNeutronNetworkQosRemove(Network network, Uuid qosUuid) {
 361         LOG.trace("Handling Network QoS removal: net: {} qosservice: {}", network.getUuid(), qosUuid);
 362         QosPolicy qosPolicy = qosPolicyMap.get(qosUuid);
 363
 364         List<Uuid> subnetIds = getSubnetIdsFromNetworkId(network.getUuid());
 365         for (Uuid subnetId : subnetIds) {
 366             List<Uuid> portIds = getPortIdsFromSubnetId(subnetId);
 367             for (Uuid portId : portIds) {
 368                 Port port = getNeutronPort(portId);
 369                 if (port != null && (port.augmentation(QosPortExtension.class) == null
 370                         || port.augmentation(QosPortExtension.class).getQosPolicyId() == null)) {
 371                     jobCoordinator.enqueueJob("QosPort-" + portId.getValue(),
 372                         () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 373                             if (qosPolicy != null && qosPolicy.getBandwidthLimitRules() != null
 374                                     && !qosPolicy.getBandwidthLimitRules().isEmpty()) {
 375                                 BandwidthLimitRulesBuilder bwLimitBuilder = new BandwidthLimitRulesBuilder();
 376                                 setPortBandwidthLimits(port, bwLimitBuilder
 377                                         .setMaxBurstKbps(BigInteger.ZERO)
 378                                         .setMaxKbps(BigInteger.ZERO).build(), tx);
 379                             }
 380                             if (qosPolicy != null && qosPolicy.getDscpmarkingRules() != null
 381                                     && !qosPolicy.getDscpmarkingRules().isEmpty()) {
 382                                 unsetPortDscpMark(port);
 383                             }
 384                         })));
 385                 }
 386             }
 387         }
 388     }
 389
 390     public void handleNeutronNetworkQosBwRuleRemove(Network network, BandwidthLimitRules zeroBwLimitRule) {
 391         LOG.trace("Handling Qos Bandwidth Rule Remove, net: {}", network.getUuid());
 392
 393         List<Uuid> subnetIds = getSubnetIdsFromNetworkId(network.getUuid());
 394
 395         for (Uuid subnetId: subnetIds) {
 396             List<Uuid> portIds = getPortIdsFromSubnetId(subnetId);
 397             for (Uuid portId : portIds) {
 398                 Port port = getNeutronPort(portId);
 399                 if (port != null && (port.augmentation(QosPortExtension.class) == null
 400                         || port.augmentation(QosPortExtension.class).getQosPolicyId() == null)) {
 401                     jobCoordinator.enqueueJob("QosPort-" + portId.getValue(), () -> Collections.singletonList(
 402                             txRunner.callWithNewWriteOnlyTransactionAndSubmit(
 403                                 tx -> setPortBandwidthLimits(port, zeroBwLimitRule, tx))));
 404                 }
 405             }
 406         }
 407     }
 408
 409     public void handleNeutronNetworkQosDscpRuleRemove(Network network) {
 410         LOG.trace("Handling Qos Dscp Rule Remove, net: {}", network.getUuid());
 411
 412         List<Uuid> subnetIds = getSubnetIdsFromNetworkId(network.getUuid());
 413
 414         for (Uuid subnetId: subnetIds) {
 415             List<Uuid> portIds = getPortIdsFromSubnetId(subnetId);
 416             for (Uuid portId : portIds) {
 417                 Port port = getNeutronPort(portId);
 418                 if (port != null && (port.augmentation(QosPortExtension.class) == null
 419                         || port.augmentation(QosPortExtension.class).getQosPolicyId() == null)) {
 420                     jobCoordinator.enqueueJob("QosPort-" + portId.getValue(), () -> {
 421                         unsetPortDscpMark(port);
 422                         return Collections.emptyList();
 423                     });
 424                 }
 425             }
 426         }
 427     }
 428
 429     // TODO Clean up the exception handling
 430     @SuppressWarnings("checkstyle:IllegalCatch")
 431     public void setPortBandwidthLimits(Port port, BandwidthLimitRules bwLimit, WriteTransaction writeConfigTxn) {
 432         if (!qosEosHandler.isQosClusterOwner()) {
 433             LOG.trace("Not Qos Cluster Owner. Ignoring setting bandwidth limits");
 434             return;
 435         }
 436         LOG.trace("Setting bandwidth limits {} on Port {}", port, bwLimit);
 437
 438         BigInteger dpId = getDpnForInterface(port.getUuid().getValue());
 439         if (dpId.equals(BigInteger.ZERO)) {
 440             LOG.info("DPN ID for interface {} not found", port.getUuid().getValue());
 441             return;
 442         }
 443
 444         OvsdbBridgeRef bridgeRefEntry = getBridgeRefEntryFromOperDS(dpId);
 445         Optional<Node> bridgeNode = MDSALUtil.read(LogicalDatastoreType.OPERATIONAL,
 446                 bridgeRefEntry.getValue().firstIdentifierOf(Node.class), dataBroker);
 447
 448
 449         TerminationPoint tp = SouthboundUtils.getTerminationPointByExternalId(bridgeNode.get(),
 450                 port.getUuid().getValue());
 451         OvsdbTerminationPointAugmentation ovsdbTp = tp.augmentation(OvsdbTerminationPointAugmentation.class);
 452
 453         OvsdbTerminationPointAugmentationBuilder tpAugmentationBuilder = new OvsdbTerminationPointAugmentationBuilder();
 454         tpAugmentationBuilder.setName(ovsdbTp.getName());
 455         tpAugmentationBuilder.setIngressPolicingRate(bwLimit.getMaxKbps().longValue());
 456         tpAugmentationBuilder.setIngressPolicingBurst(bwLimit.getMaxBurstKbps().longValue());
 457
 458         TerminationPointBuilder tpBuilder = new TerminationPointBuilder();
 459         tpBuilder.withKey(tp.key());
 460         tpBuilder.addAugmentation(OvsdbTerminationPointAugmentation.class, tpAugmentationBuilder.build());
 461         try {
 462             if (writeConfigTxn != null) {
 463                 writeConfigTxn.merge(LogicalDatastoreType.CONFIGURATION, InstanceIdentifier
 464                         .create(NetworkTopology.class)
 465                         .child(Topology.class, new TopologyKey(SouthboundUtils.OVSDB_TOPOLOGY_ID))
 466                         .child(Node.class, bridgeNode.get().key())
 467                         .child(TerminationPoint.class, new TerminationPointKey(tp.key())), tpBuilder.build(), true);
 468             } else {
 469                 MDSALUtil.syncUpdate(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier
 470                         .create(NetworkTopology.class)
 471                         .child(Topology.class, new TopologyKey(SouthboundUtils.OVSDB_TOPOLOGY_ID))
 472                         .child(Node.class, bridgeNode.get().key())
 473                         .child(TerminationPoint.class, new TerminationPointKey(tp.key())), tpBuilder.build());
 474             }
 475         } catch (Exception e) {
 476             LOG.error("Failure while setting BwLimitRule {} to port {}", bwLimit, port, e);
 477         }
 478
 479     }
 480
 481     public void setPortDscpMarking(Port port, DscpmarkingRules dscpMark) {
 482         if (!qosEosHandler.isQosClusterOwner()) {
 483             LOG.trace("Not Qos Cluster Owner. Ignoring setting DSCP marking");
 484             return;
 485         }
 486         LOG.trace("Setting DSCP value {} on Port {}", port, dscpMark);
 487
 488         BigInteger dpnId = getDpnForInterface(port.getUuid().getValue());
 489         String ifName = port.getUuid().getValue();
 490         Interface ifState = getInterfaceStateFromOperDS(ifName);
 491         Short dscpValue = dscpMark.getDscpMark();
 492
 493         if (dpnId.equals(BigInteger.ZERO)) {
 494             LOG.info("DPN ID for interface {} not found", port.getUuid().getValue());
 495             return;
 496         }
 497
 498         int ipVersions = getIpVersions(port);
 499
 500         //1. OF rules
 501         if (hasIpv4Addr(ipVersions)) {
 502             LOG.trace("setting ipv4 flow for port: {}, dscp: {}", ifName, dscpValue);
 503             addFlow(dpnId, dscpValue, ifName, NwConstants.ETHTYPE_IPV4, ifState);
 504         }
 505         if (hasIpv6Addr(ipVersions)) {
 506             LOG.trace("setting ipv6 flow for port: {}, dscp: {}", ifName, dscpValue);
 507             addFlow(dpnId, dscpValue, ifName, NwConstants.ETHTYPE_IPV6, ifState);
 508         }
 509
 510         if (qosServiceConfiguredPorts.add(port.getUuid())) {
 511             // bind qos service to interface
 512             bindservice(ifName);
 513         }
 514     }
 515
 516     public void unsetPortDscpMark(Port port) {
 517         if (!qosEosHandler.isQosClusterOwner()) {
 518             LOG.trace("Not Qos Cluster Owner. Ignoring unsetting DSCP marking");
 519             return;
 520         }
 521         LOG.trace("Removing dscp marking rule from Port {}", port);
 522
 523         BigInteger dpnId = getDpnForInterface(port.getUuid().getValue());
 524         String ifName = port.getUuid().getValue();
 525
 526         if (dpnId.equals(BigInteger.ZERO)) {
 527             LOG.info("DPN ID for port {} not found", port);
 528             return;
 529         }
 530         Interface intf = getInterfaceStateFromOperDS(ifName);
 531
 532         //unbind service from interface
 533         unbindservice(ifName);
 534         // 1. OF
 535         int ipVersions = getIpVersions(port);
 536         if (hasIpv4Addr(ipVersions)) {
 537             removeFlow(dpnId, ifName, NwConstants.ETHTYPE_IPV4, intf);
 538         }
 539         if (hasIpv6Addr(ipVersions)) {
 540             removeFlow(dpnId, ifName, NwConstants.ETHTYPE_IPV6, intf);
 541         }
 542         qosServiceConfiguredPorts.remove(port.getUuid());
 543     }
 544
 545     public void unsetPortDscpMark(Port port, Interface intrf) {
 546         if (!qosEosHandler.isQosClusterOwner()) {
 547             return;
 548         }
 549         LOG.trace("Removing dscp marking rule from Port {}", port);
 550
 551         BigInteger dpnId = getDpIdFromInterface(intrf);
 552         String ifName = port.getUuid().getValue();
 553
 554         if (dpnId.equals(BigInteger.ZERO)) {
 555             LOG.error("Unable to retrieve DPN Id for interface {}", ifName);
 556             return;
 557         }
 558         unbindservice(ifName);
 559         int ipVersions = getIpVersions(port);
 560         if (hasIpv4Addr(ipVersions)) {
 561             removeFlow(dpnId, ifName, NwConstants.ETHTYPE_IPV4, intrf);
 562         }
 563         if (hasIpv6Addr(ipVersions)) {
 564             removeFlow(dpnId, ifName, NwConstants.ETHTYPE_IPV6, intrf);
 565         }
 566         qosServiceConfiguredPorts.remove(port.getUuid());
 567     }
 568
 569     private static BigInteger getDpIdFromInterface(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf
 570                                                            .interfaces.rev140508.interfaces.state.Interface ifState) {
 571         String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 572         NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 573         return BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
 574     }
 575
 576     public BigInteger getDpnForInterface(String ifName) {
 577         BigInteger nodeId = BigInteger.ZERO;
 578         try {
 579             GetDpidFromInterfaceInput
 580                     dpIdInput = new GetDpidFromInterfaceInputBuilder().setIntfName(ifName).build();
 581             Future<RpcResult<GetDpidFromInterfaceOutput>>
 582                     dpIdOutput = odlInterfaceRpcService.getDpidFromInterface(dpIdInput);
 583             RpcResult<GetDpidFromInterfaceOutput> dpIdResult = dpIdOutput.get();
 584             if (dpIdResult.isSuccessful()) {
 585                 nodeId = dpIdResult.getResult().getDpid();
 586             } else {
 587                 LOG.error("Could not retrieve DPN Id for interface {}", ifName);
 588             }
 589         } catch (NullPointerException | InterruptedException | ExecutionException e) {
 590             LOG.error("Exception when getting dpn for interface {}", ifName,  e);
 591         }
 592         return nodeId;
 593     }
 594
 595     @Nullable
 596     private BridgeEntry getBridgeEntryFromConfigDS(BigInteger dpnId) {
 597         BridgeEntryKey bridgeEntryKey = new BridgeEntryKey(dpnId);
 598         InstanceIdentifier<BridgeEntry> bridgeEntryInstanceIdentifier = getBridgeEntryIdentifier(bridgeEntryKey);
 599         LOG.debug("Trying to retrieve bridge entry from config for Id: {}", bridgeEntryInstanceIdentifier);
 600         return getBridgeEntryFromConfigDS(bridgeEntryInstanceIdentifier);
 601     }
 602
 603     @Nullable
 604     private BridgeEntry getBridgeEntryFromConfigDS(InstanceIdentifier<BridgeEntry> bridgeEntryInstanceIdentifier) {
 605         return MDSALUtil.read(LogicalDatastoreType.CONFIGURATION, bridgeEntryInstanceIdentifier, dataBroker).orNull();
 606     }
 607
 608     @Nullable
 609     private BridgeRefEntry getBridgeRefEntryFromOperDS(InstanceIdentifier<BridgeRefEntry> dpnBridgeEntryIid) {
 610         return MDSALUtil.read(LogicalDatastoreType.OPERATIONAL, dpnBridgeEntryIid, dataBroker).orNull();
 611     }
 612
 613     @Nullable
 614     private OvsdbBridgeRef getBridgeRefEntryFromOperDS(BigInteger dpId) {
 615         BridgeRefEntryKey bridgeRefEntryKey = new BridgeRefEntryKey(dpId);
 616         InstanceIdentifier<BridgeRefEntry> bridgeRefEntryIid = getBridgeRefEntryIdentifier(bridgeRefEntryKey);
 617         BridgeRefEntry bridgeRefEntry = getBridgeRefEntryFromOperDS(bridgeRefEntryIid);
 618         if (bridgeRefEntry == null) {
 619             // bridge ref entry will be null if the bridge is disconnected from controller.
 620             // In that case, fetch bridge reference from bridge interface entry config DS
 621             BridgeEntry bridgeEntry = getBridgeEntryFromConfigDS(dpId);
 622             if (bridgeEntry == null) {
 623                 return null;
 624             }
 625             return  bridgeEntry.getBridgeReference();
 626         }
 627         return bridgeRefEntry.getBridgeReference();
 628     }
 629
 630     @Nonnull
 631     private static InstanceIdentifier<BridgeRefEntry> getBridgeRefEntryIdentifier(BridgeRefEntryKey bridgeRefEntryKey) {
 632         return InstanceIdentifier.builder(BridgeRefInfo.class).child(BridgeRefEntry.class, bridgeRefEntryKey).build();
 633     }
 634
 635     @Nonnull
 636     private static InstanceIdentifier<BridgeEntry> getBridgeEntryIdentifier(BridgeEntryKey bridgeEntryKey) {
 637         return InstanceIdentifier.builder(BridgeInterfaceInfo.class).child(BridgeEntry.class, bridgeEntryKey).build();
 638     }
 639
 640     public void removeStaleFlowEntry(Interface intrf, int ethType) {
 641         List<MatchInfo> matches = new ArrayList<>();
 642
 643         BigInteger dpnId = getDpIdFromInterface(intrf);
 644
 645         Integer ifIndex = intrf.getIfIndex();
 646         matches.add(new MatchMetadata(MetaDataUtil.getLportTagMetaData(ifIndex), MetaDataUtil.METADATA_MASK_LPORT_TAG));
 647         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.QOS_DSCP_TABLE,
 648                 getQosFlowId(NwConstants.QOS_DSCP_TABLE, dpnId, ifIndex, ethType),
 649                 QosConstants.QOS_DEFAULT_FLOW_PRIORITY, "QoSRemoveFlow", 0, 0, NwConstants.COOKIE_QOS_TABLE,
 650                 matches, null);
 651         mdsalUtils.removeFlow(flowEntity);
 652     }
 653
 654     public void addFlow(BigInteger dpnId, Short dscpValue, String ifName, int ethType, Interface ifState) {
 655         if (ifState == null) {
 656             LOG.trace("Could not find the ifState for interface {}", ifName);
 657             return;
 658         }
 659         Integer ifIndex = ifState.getIfIndex();
 660
 661         List<MatchInfo> matches = new ArrayList<>();
 662         matches.add(new MatchEthernetType(ethType));
 663         matches.add(new MatchMetadata(MetaDataUtil.getLportTagMetaData(ifIndex), MetaDataUtil.METADATA_MASK_LPORT_TAG));
 664
 665         List<ActionInfo> actionsInfos = new ArrayList<>();
 666         actionsInfos.add(new ActionSetFieldDscp(dscpValue));
 667         actionsInfos.add(new ActionNxResubmit(NwConstants.LPORT_DISPATCHER_TABLE));
 668
 669         List<InstructionInfo> instructions = Collections.singletonList(new InstructionApplyActions(actionsInfos));
 670         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.QOS_DSCP_TABLE,
 671                 getQosFlowId(NwConstants.QOS_DSCP_TABLE, dpnId, ifIndex, ethType),
 672                 QosConstants.QOS_DEFAULT_FLOW_PRIORITY, "QoSConfigFlow", 0, 0, NwConstants.COOKIE_QOS_TABLE,
 673                 matches, instructions);
 674         mdsalUtils.installFlow(flowEntity);
 675     }
 676
 677     public void removeFlow(BigInteger dpnId, String ifName, int ethType, Interface ifState) {
 678         if (ifState == null) {
 679             LOG.trace("Could not find the ifState for interface {}", ifName);
 680             return;
 681         }
 682         Integer ifIndex = ifState.getIfIndex();
 683
 684         mdsalUtils.removeFlow(dpnId, NwConstants.QOS_DSCP_TABLE,
 685                 new FlowId(getQosFlowId(NwConstants.QOS_DSCP_TABLE, dpnId, ifIndex, ethType)));
 686     }
 687
 688     @Nullable
 689     public org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
 690             .ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS(
 691             String interfaceName) {
 692         return MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL,
 693                 createInterfaceStateInstanceIdentifier(interfaceName)).orNull();
 694     }
 695
 696     @Nonnull
 697     public static InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
 698             .ietf.interfaces.rev140508.interfaces.state.Interface> createInterfaceStateInstanceIdentifier(
 699             String interfaceName) {
 700         return InstanceIdentifier
 701                 .builder(InterfacesState.class)
 702                 .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
 703                                 .ietf.interfaces.rev140508.interfaces.state.Interface.class,
 704                         new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
 705                                 .ietf.interfaces.rev140508.interfaces.state.InterfaceKey(
 706                                 interfaceName))
 707                 .build();
 708     }
 709
 710     public void bindservice(String ifName) {
 711         int priority = QosConstants.QOS_DEFAULT_FLOW_PRIORITY;
 712         int instructionKey = 0;
 713         List<Instruction> instructions = new ArrayList<>();
 714         instructions.add(MDSALUtil.buildAndGetGotoTableInstruction(NwConstants.QOS_DSCP_TABLE, ++instructionKey));
 715         short qosServiceIndex = ServiceIndex.getIndex(NwConstants.QOS_SERVICE_NAME, NwConstants.QOS_SERVICE_INDEX);
 716
 717         BoundServices serviceInfo = getBoundServices(
 718                 String.format("%s.%s", "qos", ifName), qosServiceIndex,
 719                 priority, NwConstants.COOKIE_QOS_TABLE, instructions);
 720         MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION,
 721                 buildServiceId(ifName, qosServiceIndex),
 722                 serviceInfo);
 723     }
 724
 725     public void unbindservice(String ifName) {
 726         MDSALUtil.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION, buildServiceId(ifName,
 727                 ServiceIndex.getIndex(NwConstants.QOS_SERVICE_NAME, NwConstants.QOS_SERVICE_INDEX)));
 728     }
 729
 730     private static InstanceIdentifier<BoundServices> buildServiceId(String interfaceName, short qosServiceIndex) {
 731         return InstanceIdentifier.builder(ServiceBindings.class)
 732                 .child(ServicesInfo.class, new ServicesInfoKey(interfaceName, ServiceModeIngress.class))
 733                 .child(BoundServices.class, new BoundServicesKey(qosServiceIndex)).build();
 734     }
 735
 736     private static BoundServices getBoundServices(String serviceName, short qosServiceIndex, int priority,
 737                                                   BigInteger cookieQosTable, List<Instruction> instructions) {
 738         StypeOpenflowBuilder augBuilder = new StypeOpenflowBuilder().setFlowCookie(cookieQosTable)
 739                 .setFlowPriority(priority).setInstruction(instructions);
 740         return new BoundServicesBuilder().withKey(new BoundServicesKey(qosServiceIndex)).setServiceName(serviceName)
 741                 .setServicePriority(qosServiceIndex).setServiceType(ServiceTypeFlowBased.class)
 742                 .addAugmentation(StypeOpenflow.class, augBuilder.build()).build();
 743     }
 744
 745     @Nonnull
 746     public static String getQosFlowId(short tableId, BigInteger dpId, int lportTag, int ethType) {
 747         return new StringBuilder().append(tableId).append(NwConstants.FLOWID_SEPARATOR).append(dpId)
 748                 .append(NwConstants.FLOWID_SEPARATOR).append(lportTag)
 749                 .append(NwConstants.FLOWID_SEPARATOR).append(ethType).toString();
 750     }
 751
 752     public boolean portHasQosPolicy(Port port) {
 753         LOG.trace("checking qos policy for port: {}", port.getUuid());
 754
 755         boolean isQosPolicy = port.augmentation(QosPortExtension.class) != null
 756                 && port.augmentation(QosPortExtension.class).getQosPolicyId() != null;
 757
 758         LOG.trace("portHasQosPolicy for  port: {} return value {}", port.getUuid(), isQosPolicy);
 759         return isQosPolicy;
 760     }
 761
 762     @Nullable
 763     public QosPolicy getQosPolicy(Port port) {
 764         Uuid qosUuid = null;
 765         QosPolicy qosPolicy = null;
 766
 767         if (port.augmentation(QosPortExtension.class) != null) {
 768             qosUuid = port.augmentation(QosPortExtension.class).getQosPolicyId();
 769         } else {
 770             Network network = neutronVpnManager.getNeutronNetwork(port.getNetworkId());
 771
 772             if (network.augmentation(QosNetworkExtension.class) != null) {
 773                 qosUuid = network.augmentation(QosNetworkExtension.class).getQosPolicyId();
 774             }
 775         }
 776
 777         if (qosUuid != null) {
 778             qosPolicy = qosPolicyMap.get(qosUuid);
 779         }
 780
 781         return qosPolicy;
 782     }
 783
 784     public boolean hasDscpMarkingRule(QosPolicy qosPolicy) {
 785         if (qosPolicy != null) {
 786             return qosPolicy.getDscpmarkingRules() != null && !qosPolicy.getDscpmarkingRules().isEmpty();
 787         }
 788         return false;
 789     }
 790
 791     public void addToPortCache(Port port) {
 792         neutronPortMap.put(port.getUuid(), port);
 793     }
 794
 795     public void removeFromPortCache(Port port) {
 796         neutronPortMap.remove(port.getUuid());
 797     }
 798
 799     public Port getNeutronPort(Uuid portUuid) {
 800         return neutronPortMap.get(portUuid);
 801     }
 802
 803     public Port getNeutronPort(String portName) {
 804         return getNeutronPort(new Uuid(portName));
 805     }
 806
 807     public void addToNetworkCache(Network network) {
 808         neutronNetworkMap.put(network.getUuid(), network);
 809     }
 810
 811     public void removeFromNetworkCache(Network network) {
 812         neutronNetworkMap.remove(network.getUuid());
 813     }
 814
 815     public Network getNeutronNetwork(Uuid networkUuid) {
 816         return neutronNetworkMap.get(networkUuid);
 817     }
 818
 819     public static BigInteger getDpnIdFromLowerLayerIf(String lowerLayerIf) {
 820         try {
 821             return new BigInteger(lowerLayerIf.substring(lowerLayerIf.indexOf(":") + 1, lowerLayerIf.lastIndexOf(":")));
 822         } catch (NullPointerException e) {
 823             return null;
 824         }
 825     }
 826
 827     public static String getPortNumberFromLowerLayerIf(String lowerLayerIf) {
 828         try {
 829             return (lowerLayerIf.substring(lowerLayerIf.lastIndexOf(":") + 1));
 830         } catch (NullPointerException e) {
 831             return null;
 832         }
 833     }
 834
 835     public int getIpVersions(Port port) {
 836         int versions = 0;
 837         for (FixedIps fixedIp: port.getFixedIps()) {
 838             if (fixedIp.getIpAddress().getIpv4Address() != null) {
 839                 versions |= (1 << QosConstants.IPV4_ADDR_MASK_BIT);
 840             } else if (fixedIp.getIpAddress().getIpv6Address() != null) {
 841                 versions |= (1 << QosConstants.IPV6_ADDR_MASK_BIT);
 842             }
 843         }
 844         return versions;
 845     }
 846
 847     public boolean hasIpv4Addr(int versions) {
 848         if ((versions & (1 << QosConstants.IPV4_ADDR_MASK_BIT)) != 0) {
 849             return true;
 850         }
 851         return false;
 852     }
 853
 854     public boolean hasIpv6Addr(int versions) {
 855         if ((versions & (1 << QosConstants.IPV6_ADDR_MASK_BIT)) != 0) {
 856             return true;
 857         }
 858         return false;
 859     }
 860 }