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
   9 package org.opendaylight.ovsdb.southbound.ovsdb.transact;
  10
  11 import static org.opendaylight.ovsdb.lib.operations.Operations.op;
  12
  13 import java.util.Collection;
  14 import java.util.List;
  15 import java.util.Map;
  16 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  17 import org.opendaylight.ovsdb.lib.notation.UUID;
  18 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  19 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  20 import org.opendaylight.ovsdb.schema.openvswitch.Queue;
  21 import org.opendaylight.ovsdb.southbound.InstanceIdentifierCodec;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Queues;
  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.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 public class QueueRemovedCommand implements TransactCommand {
  32     private static final Logger LOG = LoggerFactory.getLogger(QueueRemovedCommand.class);
  33
  34     @Override
  35     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  36             DataChangeEvent events, InstanceIdentifierCodec instanceIdentifierCodec) {
  37         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  38                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  39     }
  40
  41     @Override
  42     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  43             Collection<DataTreeModification<Node>> modifications, InstanceIdentifierCodec instanceIdentifierCodec) {
  44         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  45                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  46     }
  47
  48     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  49                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originals,
  50                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  51         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : originals
  52                 .entrySet()) {
  53             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  54             OvsdbNodeAugmentation original = originalEntry.getValue();
  55             OvsdbNodeAugmentation update = updated.get(ovsdbNodeIid);
  56
  57             if (original != null && update != null) {
  58                 List<Queues> origQueues = original.getQueues();
  59                 List<Queues> updatedQueues = update.getQueues();
  60                 if (origQueues != null && !origQueues.isEmpty()) {
  61                     for (Queues origQueue : origQueues) {
  62                         OvsdbNodeAugmentation operNode =
  63                                 state.getBridgeNode(ovsdbNodeIid).get().augmentation(
  64                                         OvsdbNodeAugmentation.class);
  65                         List<Queues> operQueues = operNode.getQueues();
  66
  67                         boolean found = false;
  68                         if (updatedQueues != null && !updatedQueues.isEmpty()) {
  69                             for (Queues updatedQueue : updatedQueues) {
  70                                 if (origQueue.getQueueId().equals(updatedQueue.getQueueId())) {
  71                                     found = true;
  72                                     break;
  73                                 }
  74                             }
  75                         }
  76                         if (!found) {
  77                             LOG.debug("Received request to delete Queue entry {}", origQueue.getQueueId());
  78                             Uuid queueUuid = getQueueUuid(operQueues, origQueue.getQueueId());
  79                             if (queueUuid != null) {
  80                                 Queue queue =
  81                                         TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), Queue.class,
  82                                                 null);
  83                                 transaction.add(op.delete(queue.getSchema())
  84                                         .where(queue.getUuidColumn().getSchema().opEqual(
  85                                                 new UUID(queueUuid.getValue())))
  86                                         .build());
  87                                 LOG.info("Deleted queue Uuid : {}  for the  Ovsdb Node  : {}", queueUuid, operNode);
  88                             } else {
  89                                 LOG.warn("Unable to delete Queue{} for node {} because it was not found in the "
  90                                         + "operational store, and thus we cannot retrieve its UUID",
  91                                         ovsdbNodeIid, origQueue.getQueueId());
  92                             }
  93                         }
  94                     }
  95                 }
  96             }
  97         }
  98     }
  99
 100     private Uuid getQueueUuid(List<Queues> operQueues, Uri queueId) {
 101         if (operQueues != null && !operQueues.isEmpty()) {
 102             for (Queues queueEntry : operQueues) {
 103                 if (queueEntry.getQueueId().equals(queueId)) {
 104                     return queueEntry.getQueueUuid();
 105                 }
 106             }
 107         }
 108         return null;
 109     }
 110
 111 }