elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/listeners/HwvtepTerminationPointListener.java

   1 /*
   2  * Copyright © 2016, 2017 Ericsson India Global Services Pvt Ltd. 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.elan.l2gw.listeners;
   9
  10 import static java.util.Collections.emptyList;
  11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  12
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.List;
  17 import java.util.Objects;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.genius.datastoreutils.hwvtep.HwvtepClusteredDataTreeChangeListener;
  23 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  24 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  25 import org.opendaylight.genius.utils.hwvtep.HwvtepNodeHACache;
  26 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
  27 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundUtils;
  28 import org.opendaylight.genius.utils.hwvtep.HwvtepUtils;
  29 import org.opendaylight.netvirt.elan.l2gw.utils.ElanL2GatewayUtils;
  30 import org.opendaylight.netvirt.elan.l2gw.utils.L2GatewayConnectionUtils;
  31 import org.opendaylight.netvirt.elan.utils.ElanClusterUtils;
  32 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayCache;
  33 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayDevice;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.attributes.Devices;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.attributes.devices.Interfaces;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnection;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateways.attributes.l2gateways.L2gateway;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalPortAugmentation;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical.port.attributes.VlanBindings;
  41 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  42 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  43 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  44 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  45 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  46 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51
  52 /**
  53  * Listener for physical locator presence in operational datastore.
  54  */
  55 @Singleton
  56 public class HwvtepTerminationPointListener
  57         extends HwvtepClusteredDataTreeChangeListener<TerminationPoint, HwvtepTerminationPointListener> {
  58
  59     private static final Logger LOG = LoggerFactory.getLogger(HwvtepTerminationPointListener.class);
  60
  61     private final DataBroker broker;
  62     private final ManagedNewTransactionRunner txRunner;
  63     private final ElanL2GatewayUtils elanL2GatewayUtils;
  64     private final ElanClusterUtils elanClusterUtils;
  65     private final L2GatewayCache l2GatewayCache;
  66
  67     @Inject
  68     public HwvtepTerminationPointListener(DataBroker broker, ElanL2GatewayUtils elanL2GatewayUtils,
  69             ElanClusterUtils elanClusterUtils, L2GatewayCache l2GatewayCache,
  70             HwvtepNodeHACache hwvtepNodeHACache) {
  71         super(TerminationPoint.class, HwvtepTerminationPointListener.class, hwvtepNodeHACache);
  72
  73         this.broker = broker;
  74         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  75         this.elanL2GatewayUtils = elanL2GatewayUtils;
  76         this.elanClusterUtils = elanClusterUtils;
  77         this.l2GatewayCache = l2GatewayCache;
  78         //No longer needed as port reconciliation is added in plugin
  79         //registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  80         LOG.debug("created HwvtepTerminationPointListener");
  81     }
  82
  83     @Override
  84     protected void removed(InstanceIdentifier<TerminationPoint> identifier, TerminationPoint del) {
  85         LOG.trace("physical locator removed {}", identifier);
  86         final HwvtepPhysicalPortAugmentation portAugmentation =
  87                 del.augmentation(HwvtepPhysicalPortAugmentation.class);
  88         if (portAugmentation != null) {
  89             elanClusterUtils.runOnlyInOwnerNode(HwvtepSouthboundConstants.ELAN_ENTITY_NAME,
  90                 "Handling Physical port delete",
  91                 () -> handlePortDeleted(identifier));
  92         }
  93     }
  94
  95     @Override
  96     protected void updated(InstanceIdentifier<TerminationPoint> identifier, TerminationPoint original,
  97                            TerminationPoint update) {
  98         LOG.trace("physical locator available {}", identifier);
  99     }
 100
 101     @Override
 102     protected void added(InstanceIdentifier<TerminationPoint> identifier, final TerminationPoint add) {
 103         final HwvtepPhysicalPortAugmentation portAugmentation =
 104                 add.augmentation(HwvtepPhysicalPortAugmentation.class);
 105         if (portAugmentation != null) {
 106             final NodeId nodeId = identifier.firstIdentifierOf(Node.class).firstKeyOf(Node.class).getNodeId();
 107             elanClusterUtils.runOnlyInOwnerNode(HwvtepSouthboundConstants.ELAN_ENTITY_NAME,
 108                 () -> handlePortAdded(add, nodeId));
 109             return;
 110         }
 111
 112         LOG.trace("physical locator available {}", identifier);
 113     }
 114
 115     @Override
 116     protected InstanceIdentifier<TerminationPoint> getWildCardPath() {
 117         return InstanceIdentifier.create(NetworkTopology.class)
 118                 .child(Topology.class, new TopologyKey(HwvtepSouthboundConstants.HWVTEP_TOPOLOGY_ID)).child(Node.class)
 119                 .child(TerminationPoint.class);
 120     }
 121
 122     @Override
 123     protected HwvtepTerminationPointListener getDataTreeChangeListener() {
 124         return this;
 125     }
 126
 127     private List<ListenableFuture<Void>> handlePortAdded(TerminationPoint portAdded, NodeId psNodeId) {
 128         Node psNode = HwvtepUtils.getHwVtepNode(broker, LogicalDatastoreType.OPERATIONAL, psNodeId);
 129         if (psNode != null) {
 130             String psName = psNode.augmentation(PhysicalSwitchAugmentation.class).getHwvtepNodeName().getValue();
 131             L2GatewayDevice l2GwDevice = l2GatewayCache.get(psName);
 132             if (l2GwDevice != null) {
 133                 if (isL2GatewayConfigured(l2GwDevice)) {
 134                     List<L2gatewayConnection> l2GwConns = L2GatewayConnectionUtils.getAssociatedL2GwConnections(broker,
 135                             l2GwDevice.getL2GatewayIds());
 136                     String newPortId = portAdded.getTpId().getValue();
 137                     NodeId hwvtepNodeId = new NodeId(l2GwDevice.getHwvtepNodeId());
 138                     List<VlanBindings> vlanBindings = getVlanBindings(l2GwConns, hwvtepNodeId, psName, newPortId);
 139                     return Collections.singletonList(
 140                             elanL2GatewayUtils.updateVlanBindingsInL2GatewayDevice(hwvtepNodeId, psName, newPortId,
 141                                     vlanBindings));
 142                 }
 143             } else {
 144                 LOG.error("{} details are not present in L2Gateway Cache", psName);
 145             }
 146         } else {
 147             LOG.error("{} entry not in config datastore", psNodeId);
 148         }
 149         return emptyList();
 150     }
 151
 152     private List<ListenableFuture<Void>> handlePortDeleted(InstanceIdentifier<TerminationPoint> identifier) {
 153         InstanceIdentifier<Node> psNodeIid = identifier.firstIdentifierOf(Node.class);
 154         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 155             tx -> tx.read(psNodeIid).get().toJavaUtil().ifPresent(
 156                 node -> tx.delete(identifier))));
 157     }
 158
 159     private List<VlanBindings> getVlanBindings(List<L2gatewayConnection> l2GwConns, NodeId hwvtepNodeId, String psName,
 160                                                String newPortId) {
 161         List<VlanBindings> vlanBindings = new ArrayList<>();
 162         for (L2gatewayConnection l2GwConn : l2GwConns) {
 163             L2gateway l2Gateway = L2GatewayConnectionUtils.getNeutronL2gateway(broker, l2GwConn.getL2gatewayId());
 164             if (l2Gateway == null) {
 165                 LOG.error("L2Gateway with id {} is not present", l2GwConn.getL2gatewayId().getValue());
 166             } else {
 167                 String logicalSwitchName = ElanL2GatewayUtils.getLogicalSwitchFromElan(
 168                         l2GwConn.getNetworkId().getValue());
 169                 List<Devices> l2Devices = l2Gateway.nonnullDevices();
 170                 for (Devices l2Device : l2Devices) {
 171                     String l2DeviceName = l2Device.getDeviceName();
 172                     if (l2DeviceName != null && l2DeviceName.equals(psName)) {
 173                         for (Interfaces deviceInterface : l2Device.nonnullInterfaces()) {
 174                             if (Objects.equals(deviceInterface.getInterfaceName(), newPortId)) {
 175                                 if (deviceInterface.getSegmentationIds() != null
 176                                         && !deviceInterface.getSegmentationIds().isEmpty()) {
 177                                     for (Integer vlanId : deviceInterface.getSegmentationIds()) {
 178                                         vlanBindings.add(HwvtepSouthboundUtils.createVlanBinding(hwvtepNodeId, vlanId,
 179                                                 logicalSwitchName));
 180                                     }
 181                                 } else {
 182                                     // Use defaultVlanId (specified in L2GatewayConnection) if Vlan
 183                                     // ID not specified at interface level.
 184                                     Integer segmentationId = l2GwConn.getSegmentId();
 185                                     int defaultVlanId = segmentationId != null ? segmentationId : 0;
 186                                     vlanBindings.add(HwvtepSouthboundUtils.createVlanBinding(hwvtepNodeId,
 187                                             defaultVlanId, logicalSwitchName));
 188                                 }
 189                             }
 190                         }
 191                     }
 192                 }
 193             }
 194         }
 195         return vlanBindings;
 196     }
 197
 198     private static boolean isL2GatewayConfigured(L2GatewayDevice l2GwDevice) {
 199         return l2GwDevice.getHwvtepNodeId() != null
 200                 && !l2GwDevice.getL2GatewayIds().isEmpty() && l2GwDevice.getTunnelIp() != null;
 201     }
 202 }