southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/ovsdb/transact/BridgeRemovedCommand.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
   9 package org.opendaylight.ovsdb.southbound.ovsdb.transact;
  10
  11 import static org.opendaylight.ovsdb.lib.operations.Operations.op;
  12
  13 import com.google.common.base.Optional;
  14 import java.util.Collection;
  15 import java.util.Collections;
  16 import java.util.Map;
  17 import java.util.Set;
  18 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  19 import org.opendaylight.ovsdb.lib.notation.Mutator;
  20 import org.opendaylight.ovsdb.lib.notation.UUID;
  21 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  22 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  23 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  24 import org.opendaylight.ovsdb.schema.openvswitch.OpenVSwitch;
  25 import org.opendaylight.ovsdb.southbound.InstanceIdentifierCodec;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class BridgeRemovedCommand implements TransactCommand {
  33     private static final Logger LOG = LoggerFactory.getLogger(BridgeRemovedCommand.class);
  34
  35     @Override
  36     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  37             DataChangeEvent events, InstanceIdentifierCodec instanceIdentifierCodec) {
  38         execute(transaction, state, TransactUtils.extractRemoved(events, OvsdbBridgeAugmentation.class),
  39                 TransactUtils.extractOriginal(events, OvsdbBridgeAugmentation.class));
  40     }
  41
  42     @Override
  43     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  44             Collection<DataTreeModification<Node>> modifications, InstanceIdentifierCodec instanceIdentifierCodec) {
  45         execute(transaction, state, TransactUtils.extractRemoved(modifications, OvsdbBridgeAugmentation.class),
  46                 TransactUtils.extractOriginal(modifications, OvsdbBridgeAugmentation.class));
  47     }
  48
  49     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  50                          Set<InstanceIdentifier<OvsdbBridgeAugmentation>> removed,
  51                          Map<InstanceIdentifier<OvsdbBridgeAugmentation>, OvsdbBridgeAugmentation> originals) {
  52         for (InstanceIdentifier<OvsdbBridgeAugmentation> ovsdbManagedNodeIid: removed) {
  53             LOG.debug("Received request to delete ovsdb node : {}",
  54                     ovsdbManagedNodeIid);
  55             OvsdbBridgeAugmentation original = originals.get(ovsdbManagedNodeIid);
  56             Bridge bridge = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), Bridge.class,null);
  57             Optional<OvsdbBridgeAugmentation> ovsdbAugmentationOptional = state
  58                     .getOvsdbBridgeAugmentation(ovsdbManagedNodeIid);
  59             if (ovsdbAugmentationOptional.isPresent() && ovsdbAugmentationOptional.get().getBridgeUuid() != null) {
  60                 UUID bridgeUuid = new UUID(ovsdbAugmentationOptional.get().getBridgeUuid().getValue());
  61                 OpenVSwitch ovs = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  62                         OpenVSwitch.class,null);
  63                 transaction.add(op.delete(bridge.getSchema())
  64                         .where(bridge.getUuidColumn().getSchema().opEqual(bridgeUuid)).build());
  65                 transaction.add(op.comment("Bridge: Deleting " + original.getBridgeName()));
  66                 transaction.add(op.mutate(ovs.getSchema())
  67                         .addMutation(ovs.getBridgesColumn().getSchema(), Mutator.DELETE,
  68                                 Collections.singleton(bridgeUuid)));
  69                 transaction.add(op.comment("Open_vSwitch: Mutating " + original.getBridgeName() + " " + bridgeUuid));
  70                 LOG.info("Bridge Deleted: {}", ovsdbManagedNodeIid);
  71             } else {
  72                 LOG.warn("Unable to delete bridge {} because it was not found in the operational store, "
  73                         + "and thus we cannot retrieve its UUID", ovsdbManagedNodeIid);
  74             }
  75
  76         }
  77     }
  78 }