hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transactions/md/HwvtepTunnelRemoveCommand.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md;
  10
  11 import java.util.Collection;
  12 import org.opendaylight.mdsal.binding.api.ReadWriteTransaction;
  13 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  14 import org.opendaylight.ovsdb.hwvtepsouthbound.HwvtepConnectionInstance;
  15 import org.opendaylight.ovsdb.hwvtepsouthbound.HwvtepSouthboundMapper;
  16 import org.opendaylight.ovsdb.lib.message.TableUpdates;
  17 import org.opendaylight.ovsdb.lib.notation.UUID;
  18 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  19 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  20 import org.opendaylight.ovsdb.schema.hardwarevtep.PhysicalLocator;
  21 import org.opendaylight.ovsdb.schema.hardwarevtep.PhysicalSwitch;
  22 import org.opendaylight.ovsdb.schema.hardwarevtep.Tunnel;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical._switch.attributes.Tunnels;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public final class HwvtepTunnelRemoveCommand extends AbstractTransactionCommand {
  31     private static final Logger LOG = LoggerFactory.getLogger(HwvtepTunnelRemoveCommand.class);
  32
  33     Collection<Tunnel> deletedTunnelRows = null;
  34
  35     public HwvtepTunnelRemoveCommand(HwvtepConnectionInstance key, TableUpdates updates, DatabaseSchema dbSchema) {
  36         super(key, updates, dbSchema);
  37         try {
  38             deletedTunnelRows = TyperUtils.extractRowsRemoved(Tunnel.class, getUpdates(), getDbSchema()).values();
  39         } catch (IllegalArgumentException e) {
  40             LOG.debug("Tunnel Table not supported on this HWVTEP device", e);
  41         }
  42     }
  43
  44     @Override
  45     @SuppressWarnings("checkstyle:IllegalCatch")
  46     public void execute(ReadWriteTransaction transaction) {
  47         for (Tunnel tunnel : deletedTunnelRows) {
  48             try {
  49                 InstanceIdentifier<Tunnels> tunnelIid = getInstanceIdentifier(getOvsdbConnectionInstance(), tunnel);
  50                 if (tunnelIid != null) {
  51                     transaction.delete(LogicalDatastoreType.OPERATIONAL, tunnelIid);
  52                     LOG.trace("Deleting tunnel {}", tunnelIid);
  53                 }
  54                 getOvsdbConnectionInstance().getDeviceInfo().removePhysicalSwitchForTunnel(tunnel.getUuid());
  55             } catch (RuntimeException e) {
  56                 LOG.warn("Failed to delete tunnel {}", tunnel, e);
  57             }
  58         }
  59     }
  60
  61     private InstanceIdentifier<Tunnels> getInstanceIdentifier(HwvtepConnectionInstance client, Tunnel tunnel) {
  62         InstanceIdentifier<Tunnels> result = null;
  63
  64         PhysicalSwitch phySwitch = client.getDeviceInfo().getPhysicalSwitchForTunnel(tunnel.getUuid());
  65         if (phySwitch == null) {
  66             //PhysicalSwitch has already been removed, nothing to do here
  67             return null;
  68         }
  69         InstanceIdentifier<Node> psIid = HwvtepSouthboundMapper.createInstanceIdentifier(client, phySwitch);
  70         PhysicalLocator plLocal = getPhysicalLocatorFromUUID(tunnel.getLocalColumn().getData());
  71         PhysicalLocator plRemote = getPhysicalLocatorFromUUID(tunnel.getRemoteColumn().getData());
  72         if (plLocal != null && plRemote != null) {
  73             InstanceIdentifier<TerminationPoint> localTpPath = HwvtepSouthboundMapper.createInstanceIdentifier(
  74                                                                 client.getInstanceIdentifier(), plLocal);
  75             InstanceIdentifier<TerminationPoint> remoteTpPath = HwvtepSouthboundMapper.createInstanceIdentifier(
  76                                                                 client.getInstanceIdentifier(), plRemote);
  77             result = HwvtepSouthboundMapper.createInstanceIdentifier(psIid, localTpPath, remoteTpPath);
  78         }
  79         return result;
  80     }
  81
  82     private PhysicalLocator getPhysicalLocatorFromUUID(UUID uuid) {
  83         PhysicalLocator locator = getOvsdbConnectionInstance().getDeviceInfo().getPhysicalLocator(uuid);
  84         if (locator == null) {
  85             LOG.trace("Available PhysicalLocators: {}",
  86                             getOvsdbConnectionInstance().getDeviceInfo().getPhysicalLocators());
  87         }
  88         return locator;
  89     }
  90 }