southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/ovsdb/transact/TerminationPointDeleteCommand.java

   1 /*
   2  * Copyright © 2015, 2017 Brocade Communications 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 package org.opendaylight.ovsdb.southbound.ovsdb.transact;
   9
  10 import static org.opendaylight.ovsdb.lib.operations.Operations.op;
  11
  12 import com.google.common.base.Optional;
  13 import java.util.Collection;
  14 import java.util.Collections;
  15 import java.util.Map;
  16 import java.util.Set;
  17 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  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.Port;
  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.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  29 import org.opendaylight.yangtools.yang.binding.DataObject;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * Transaction handler for the TerminationPoints.
  36  *
  37  * @author avishnoi@brocade.com (Anil Vishnoi)
  38  */
  39 public class TerminationPointDeleteCommand implements TransactCommand {
  40     private static final Logger LOG = LoggerFactory.getLogger(TerminationPointDeleteCommand.class);
  41
  42     @Override
  43     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  44             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> events,
  45             InstanceIdentifierCodec instanceIdentifierCodec) {
  46         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbTerminationPointAugmentation.class),
  47                 TransactUtils.extractOriginal(events, Node.class),
  48                 TransactUtils.extractRemoved(events, OvsdbTerminationPointAugmentation.class));
  49     }
  50
  51     @Override
  52     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  53             Collection<DataTreeModification<Node>> modifications,
  54             InstanceIdentifierCodec instanceIdentifierCodec) {
  55         execute(transaction, state,
  56                 TransactUtils.extractOriginal(modifications, OvsdbTerminationPointAugmentation.class),
  57                 TransactUtils.extractOriginal(modifications, Node.class),
  58                 TransactUtils.extractRemoved(modifications, OvsdbTerminationPointAugmentation.class));
  59     }
  60
  61     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  62                          Map<InstanceIdentifier<OvsdbTerminationPointAugmentation>,
  63                                  OvsdbTerminationPointAugmentation> originals,
  64                          Map<InstanceIdentifier<Node>, Node> originalNodes,
  65                          Set<InstanceIdentifier<OvsdbTerminationPointAugmentation>> removedTps) {
  66         for (InstanceIdentifier<OvsdbTerminationPointAugmentation> removedTpIid: removedTps) {
  67             LOG.debug("Received request to delete termination point {}", removedTpIid);
  68
  69             OvsdbTerminationPointAugmentation original = originals.get(removedTpIid);
  70             Node originalNode = originalNodes.get(removedTpIid.firstIdentifierOf(Node.class));
  71             OvsdbBridgeAugmentation originalOvsdbBridgeAugmentation =
  72                     originalNode.getAugmentation(OvsdbBridgeAugmentation.class);
  73             String bridgeName = null;
  74             if (originalOvsdbBridgeAugmentation != null) {
  75                 bridgeName = originalOvsdbBridgeAugmentation.getBridgeName().getValue();
  76             } else {
  77                 Optional<OvsdbBridgeAugmentation> bridgeAug = state.getOvsdbBridgeAugmentation(removedTpIid);
  78                 if (bridgeAug.isPresent()) {
  79                     bridgeName = bridgeAug.get().getBridgeName().getValue();
  80                 } else {
  81                     LOG.error("Bridge does not exist for termination point {}", removedTpIid);
  82                 }
  83             }
  84
  85             Port port = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), Port.class,null);
  86             Optional<OvsdbTerminationPointAugmentation> tpAugmentation =
  87                     state.getOvsdbTerminationPointAugmentation(removedTpIid);
  88
  89             if (tpAugmentation.isPresent()) {
  90                 OvsdbTerminationPointAugmentation tp = tpAugmentation.get();
  91                 if (tp.getPortUuid() != null) {
  92                     UUID portUuid = new UUID(tp.getPortUuid().getValue());
  93                     Bridge bridge = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  94                             Bridge.class,null);
  95
  96                     transaction.add(op.delete(port.getSchema())
  97                             .where(port.getUuidColumn().getSchema().opEqual(portUuid)).build());
  98                     transaction.add(op.comment("Port: Deleting " + original.getName()
  99                             + " attached to " + bridgeName));
 100
 101                     transaction.add(op.mutate(bridge.getSchema())
 102                             .addMutation(bridge.getPortsColumn().getSchema(),
 103                                     Mutator.DELETE, Collections.singleton(portUuid))
 104                             .where(bridge.getNameColumn().getSchema().opEqual(bridgeName)).build());
 105
 106                     transaction.add(op.comment("Bridge: Mutating " + bridgeName
 107                             + " to remove port " + portUuid));
 108                     LOG.info("Deleted Termination Point : {} with uuid : {}",
 109                             original.getName(), portUuid);
 110                 } else {
 111                     LOG.warn("Unable to delete port {} from bridge  {} because it was not found in the operational "
 112                             + "store, operational store,  and thus we cannot retrieve its UUID",
 113                             bridgeName,original.getName());
 114                 }
 115             }
 116         }
 117     }
 118 }