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.List;
  14 import java.util.Map;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  16 import org.opendaylight.ovsdb.lib.notation.UUID;
  17 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  18 import org.opendaylight.ovsdb.schema.openvswitch.Queue;
  19 import org.opendaylight.ovsdb.southbound.InstanceIdentifierCodec;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Queues;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 public class QueueRemovedCommand implements TransactCommand {
  30     private static final Logger LOG = LoggerFactory.getLogger(QueueRemovedCommand.class);
  31
  32     @Override
  33     public void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  34             final DataChangeEvent events, final InstanceIdentifierCodec instanceIdentifierCodec) {
  35         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  36                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  37     }
  38
  39     @Override
  40     public void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  41             final Collection<DataTreeModification<Node>> modifications,
  42             final InstanceIdentifierCodec instanceIdentifierCodec) {
  43         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  44                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  45     }
  46
  47     private void execute(final TransactionBuilder transaction, final BridgeOperationalState state,
  48                          final Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originals,
  49                          final Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  50         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : originals
  51                 .entrySet()) {
  52             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  53             OvsdbNodeAugmentation original = originalEntry.getValue();
  54             OvsdbNodeAugmentation update = updated.get(ovsdbNodeIid);
  55
  56             if (original != null && update != null) {
  57                 List<Queues> origQueues = original.getQueues();
  58                 List<Queues> updatedQueues = update.getQueues();
  59                 if (origQueues != null && !origQueues.isEmpty()) {
  60                     for (Queues origQueue : origQueues) {
  61                         OvsdbNodeAugmentation operNode =
  62                                 state.getBridgeNode(ovsdbNodeIid).get().augmentation(
  63                                         OvsdbNodeAugmentation.class);
  64                         List<Queues> operQueues = operNode.getQueues();
  65
  66                         boolean found = false;
  67                         if (updatedQueues != null && !updatedQueues.isEmpty()) {
  68                             for (Queues updatedQueue : updatedQueues) {
  69                                 if (origQueue.getQueueId().equals(updatedQueue.getQueueId())) {
  70                                     found = true;
  71                                     break;
  72                                 }
  73                             }
  74                         }
  75                         if (!found) {
  76                             LOG.debug("Received request to delete Queue entry {}", origQueue.getQueueId());
  77                             Uuid queueUuid = getQueueUuid(operQueues, origQueue.getQueueId());
  78                             if (queueUuid != null) {
  79                                 Queue queue = transaction.getTypedRowSchema(Queue.class);
  80                                 transaction.add(op.delete(queue.getSchema())
  81                                         .where(queue.getUuidColumn().getSchema().opEqual(
  82                                                 new UUID(queueUuid.getValue())))
  83                                         .build());
  84                                 LOG.info("Deleted queue Uuid : {}  for the  Ovsdb Node  : {}", queueUuid, operNode);
  85                             } else {
  86                                 LOG.warn("Unable to delete Queue{} for node {} because it was not found in the "
  87                                         + "operational store, and thus we cannot retrieve its UUID",
  88                                         ovsdbNodeIid, origQueue.getQueueId());
  89                             }
  90                         }
  91                     }
  92                 }
  93             }
  94         }
  95     }
  96
  97     private Uuid getQueueUuid(final List<Queues> operQueues, final Uri queueId) {
  98         if (operQueues != null && !operQueues.isEmpty()) {
  99             for (Queues queueEntry : operQueues) {
 100                 if (queueEntry.getQueueId().equals(queueId)) {
 101                     return queueEntry.getQueueUuid();
 102                 }
 103             }
 104         }
 105         return null;
 106     }
 107
 108 }