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

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