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.mdsal.binding.util.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.Map;
  18 import java.util.Objects;
  19 import java.util.concurrent.ExecutionException;
  20 import javax.inject.Inject;
  21 import javax.inject.Singleton;
  22 import org.opendaylight.genius.datastoreutils.hwvtep.HwvtepClusteredDataTreeChangeListener;
  23 import org.opendaylight.genius.utils.hwvtep.HwvtepHACache;
  24 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
  25 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundUtils;
  26 import org.opendaylight.genius.utils.hwvtep.HwvtepUtils;
  27 import org.opendaylight.infrautils.utils.concurrent.Executors;
  28 import org.opendaylight.mdsal.binding.api.DataBroker;
  29 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  30 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunner;
  31 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunnerImpl;
  32 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  33 import org.opendaylight.netvirt.elan.l2gw.utils.ElanL2GatewayUtils;
  34 import org.opendaylight.netvirt.elan.l2gw.utils.L2GatewayConnectionUtils;
  35 import org.opendaylight.netvirt.elan.utils.ElanClusterUtils;
  36 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayCache;
  37 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayDevice;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.attributes.Devices;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.attributes.DevicesKey;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.attributes.devices.Interfaces;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnection;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateways.attributes.l2gateways.L2gateway;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalPortAugmentation;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical.port.attributes.VlanBindings;
  46 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  47 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  48 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  49 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  50 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  51 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  52 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 /**
  57  * Listener for physical locator presence in operational datastore.
  58  */
  59 @Singleton
  60 public class HwvtepTerminationPointListener
  61         extends HwvtepClusteredDataTreeChangeListener<TerminationPoint, HwvtepTerminationPointListener> {
  62
  63     private static final Logger LOG = LoggerFactory.getLogger(HwvtepTerminationPointListener.class);
  64
  65     private final DataBroker broker;
  66     private final ManagedNewTransactionRunner txRunner;
  67     private final ElanL2GatewayUtils elanL2GatewayUtils;
  68     private final ElanClusterUtils elanClusterUtils;
  69     private final L2GatewayCache l2GatewayCache;
  70
  71     @Inject
  72     public HwvtepTerminationPointListener(DataBroker broker, ElanL2GatewayUtils elanL2GatewayUtils,
  73             ElanClusterUtils elanClusterUtils, L2GatewayCache l2GatewayCache) {
  74         //super(TerminationPoint.class, HwvtepTerminationPointListener.class, hwvtepNodeHACache);
  75
  76         super(broker, DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL,
  77             InstanceIdentifier.create(NetworkTopology.class)
  78                 .child(Topology.class, new TopologyKey(HwvtepSouthboundConstants.HWVTEP_TOPOLOGY_ID)).child(Node.class)
  79                 .child(TerminationPoint.class)),
  80             Executors.newListeningSingleThreadExecutor("HwvtepTerminationPointListener", LOG),
  81             HwvtepHACache.getInstance());
  82         this.broker = broker;
  83         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  84         this.elanL2GatewayUtils = elanL2GatewayUtils;
  85         this.elanClusterUtils = elanClusterUtils;
  86         this.l2GatewayCache = l2GatewayCache;
  87         //No longer needed as port reconciliation is added in plugin
  88         //registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  89         LOG.debug("created HwvtepTerminationPointListener");
  90     }
  91
  92     @Override
  93     protected void removed(InstanceIdentifier<TerminationPoint> identifier, TerminationPoint del) {
  94         LOG.trace("physical locator removed {}", identifier);
  95         final HwvtepPhysicalPortAugmentation portAugmentation =
  96                 del.augmentation(HwvtepPhysicalPortAugmentation.class);
  97         if (portAugmentation != null) {
  98             elanClusterUtils.runOnlyInOwnerNode(HwvtepSouthboundConstants.ELAN_ENTITY_NAME,
  99                 "Handling Physical port delete",
 100                 () -> handlePortDeleted(identifier));
 101         }
 102     }
 103
 104     @Override
 105     protected void updated(InstanceIdentifier<TerminationPoint> identifier, TerminationPoint original,
 106                            TerminationPoint update) {
 107         LOG.trace("physical locator available {}", identifier);
 108     }
 109
 110     @Override
 111     protected void added(InstanceIdentifier<TerminationPoint> identifier, final TerminationPoint add) {
 112         final HwvtepPhysicalPortAugmentation portAugmentation =
 113                 add.augmentation(HwvtepPhysicalPortAugmentation.class);
 114         if (portAugmentation != null) {
 115             final NodeId nodeId = identifier.firstIdentifierOf(Node.class).firstKeyOf(Node.class).getNodeId();
 116             elanClusterUtils.runOnlyInOwnerNode(HwvtepSouthboundConstants.ELAN_ENTITY_NAME,
 117                 () -> handlePortAdded(add, nodeId));
 118             return;
 119         }
 120
 121         LOG.trace("physical locator available {}", identifier);
 122     }
 123
 124     private List<ListenableFuture<?>> handlePortAdded(TerminationPoint portAdded, NodeId psNodeId) {
 125         Node psNode = null;
 126         try {
 127             psNode = HwvtepUtils.getHwVtepNode(broker, LogicalDatastoreType.OPERATIONAL, psNodeId);
 128         } catch (ExecutionException | InterruptedException e) {
 129             LOG.error("Exception while retriving HwVtepNode {}", psNodeId.getValue(), e);
 130         }
 131         if (psNode != null) {
 132             String psName = psNode.augmentation(PhysicalSwitchAugmentation.class).getHwvtepNodeName().getValue();
 133             L2GatewayDevice l2GwDevice = l2GatewayCache.get(psName);
 134             if (l2GwDevice != null) {
 135                 if (isL2GatewayConfigured(l2GwDevice)) {
 136                     List<L2gatewayConnection> l2GwConns = L2GatewayConnectionUtils.getAssociatedL2GwConnections(broker,
 137                             l2GwDevice.getL2GatewayIds());
 138                     String newPortId = portAdded.getTpId().getValue();
 139                     NodeId hwvtepNodeId = new NodeId(l2GwDevice.getHwvtepNodeId());
 140                     List<VlanBindings> vlanBindings = getVlanBindings(l2GwConns, hwvtepNodeId, psName, newPortId);
 141                     return Collections.singletonList(
 142                             elanL2GatewayUtils.updateVlanBindingsInL2GatewayDevice(hwvtepNodeId, psName, newPortId,
 143                                     vlanBindings));
 144                 }
 145             } else {
 146                 LOG.error("{} details are not present in L2Gateway Cache", psName);
 147             }
 148         } else {
 149             LOG.error("{} entry not in config datastore", psNodeId);
 150         }
 151         return emptyList();
 152     }
 153
 154     private List<ListenableFuture<?>> handlePortDeleted(InstanceIdentifier<TerminationPoint> identifier) {
 155         InstanceIdentifier<Node> psNodeIid = identifier.firstIdentifierOf(Node.class);
 156         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 157             tx -> tx.read(psNodeIid).get().ifPresent(node -> tx.delete(identifier))));
 158     }
 159
 160     private List<VlanBindings> getVlanBindings(List<L2gatewayConnection> l2GwConns, NodeId hwvtepNodeId, String psName,
 161                                                String newPortId) {
 162         List<VlanBindings> vlanBindings = new ArrayList<>();
 163         for (L2gatewayConnection l2GwConn : l2GwConns) {
 164             L2gateway l2Gateway = L2GatewayConnectionUtils.getNeutronL2gateway(broker, l2GwConn.getL2gatewayId());
 165             if (l2Gateway == null) {
 166                 LOG.error("L2Gateway with id {} is not present", l2GwConn.getL2gatewayId().getValue());
 167             } else {
 168                 String logicalSwitchName = ElanL2GatewayUtils.getLogicalSwitchFromElan(
 169                         l2GwConn.getNetworkId().getValue());
 170                 Map<DevicesKey, Devices> l2Devices = l2Gateway.nonnullDevices();
 171                 for (Devices l2Device : l2Devices.values()) {
 172                     String l2DeviceName = l2Device.getDeviceName();
 173                     if (l2DeviceName != null && l2DeviceName.equals(psName)) {
 174                         for (Interfaces deviceInterface : l2Device.nonnullInterfaces().values()) {
 175                             if (Objects.equals(deviceInterface.getInterfaceName(), newPortId)) {
 176                                 if (deviceInterface.getSegmentationIds() != null
 177                                         && !deviceInterface.getSegmentationIds().isEmpty()) {
 178                                     for (Integer vlanId : deviceInterface.getSegmentationIds()) {
 179                                         vlanBindings.add(HwvtepSouthboundUtils.createVlanBinding(hwvtepNodeId, vlanId,
 180                                                 logicalSwitchName));
 181                                     }
 182                                 } else {
 183                                     // Use defaultVlanId (specified in L2GatewayConnection) if Vlan
 184                                     // ID not specified at interface level.
 185                                     Integer segmentationId = l2GwConn.getSegmentId();
 186                                     int defaultVlanId = segmentationId != null ? segmentationId : 0;
 187                                     vlanBindings.add(HwvtepSouthboundUtils.createVlanBinding(hwvtepNodeId,
 188                                             defaultVlanId, logicalSwitchName));
 189                                 }
 190                             }
 191                         }
 192                     }
 193                 }
 194             }
 195         }
 196         return vlanBindings;
 197     }
 198
 199     private static boolean isL2GatewayConfigured(L2GatewayDevice l2GwDevice) {
 200         return l2GwDevice.getHwvtepNodeId() != null
 201                 && !l2GwDevice.getL2GatewayIds().isEmpty() && l2GwDevice.getTunnelIp() != null;
 202     }
 203 }