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

   1 /*
   2  * Copyright (c) 2016 Intel  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 org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.ovsdb.lib.notation.UUID;
  16 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  17 import org.opendaylight.ovsdb.schema.openvswitch.Queue;
  18 import org.opendaylight.ovsdb.southbound.InstanceIdentifierCodec;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Queues;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.QueuesKey;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 public class QueueRemovedCommand implements TransactCommand {
  29     private static final Logger LOG = LoggerFactory.getLogger(QueueRemovedCommand.class);
  30
  31     @Override
  32     public void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  33             final DataChangeEvent events, final InstanceIdentifierCodec instanceIdentifierCodec) {
  34         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  35                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  36     }
  37
  38     @Override
  39     public void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  40             final Collection<DataTreeModification<Node>> modifications,
  41             final InstanceIdentifierCodec instanceIdentifierCodec) {
  42         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  43                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  44     }
  45
  46     private static void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  47                                 final Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originals,
  48                                 final Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  49         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : originals
  50                 .entrySet()) {
  51             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  52             OvsdbNodeAugmentation original = originalEntry.getValue();
  53             OvsdbNodeAugmentation update = updated.get(ovsdbNodeIid);
  54
  55             if (original != null && update != null) {
  56                 Map<QueuesKey, Queues> origQueues = original.getQueues();
  57                 Map<QueuesKey, Queues> updatedQueues = update.getQueues();
  58                 if (origQueues != null && !origQueues.isEmpty()) {
  59                     for (Queues origQueue : origQueues.values()) {
  60                         OvsdbNodeAugmentation operNode =
  61                                 state.getBridgeNode(ovsdbNodeIid).orElseThrow().augmentation(
  62                                         OvsdbNodeAugmentation.class);
  63                         if (updatedQueues == null || !updatedQueues.containsKey(origQueue.key())) {
  64                             LOG.debug("Received request to delete Queue entry {}", origQueue.getQueueId());
  65                             Uuid queueUuid = getQueueUuid(operNode.getQueues(), origQueue.key());
  66                             if (queueUuid != null) {
  67                                 Queue queue = transaction.getTypedRowSchema(Queue.class);
  68                                 transaction.add(op.delete(queue.getSchema())
  69                                         .where(queue.getUuidColumn().getSchema().opEqual(
  70                                                 new UUID(queueUuid.getValue())))
  71                                         .build());
  72                                 LOG.info("Deleted queue Uuid : {}  for the  Ovsdb Node  : {}", queueUuid, operNode);
  73                             } else {
  74                                 LOG.warn("Unable to delete Queue{} for node {} because it was not found in the "
  75                                         + "operational store, and thus we cannot retrieve its UUID",
  76                                         ovsdbNodeIid, origQueue.getQueueId());
  77                             }
  78                         }
  79                     }
  80                 }
  81             }
  82         }
  83     }
  84
  85     private static Uuid getQueueUuid(final Map<QueuesKey, Queues> operQueues, final QueuesKey queueId) {
  86         if (operQueues != null) {
  87             Queues queueEntry = operQueues.get(queueId);
  88             if (queueEntry != null) {
  89                 return queueEntry.getQueueUuid();
  90             }
  91         }
  92         return null;
  93     }
  94 }