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
  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.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.Queue;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Queues;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class QueueRemovedCommand implements TransactCommand {
  34     private static final Logger LOG = LoggerFactory.getLogger(QueueRemovedCommand.class);
  35
  36     @Override
  37     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  38                         AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> events) {
  39         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  40                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  41     }
  42
  43     @Override
  44     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  45                         Collection<DataTreeModification<Node>> modifications) {
  46         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  47                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  48     }
  49
  50     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  51                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originals,
  52                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  53         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : originals
  54                 .entrySet()) {
  55             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  56             OvsdbNodeAugmentation original = originalEntry.getValue();
  57             OvsdbNodeAugmentation update = updated.get(ovsdbNodeIid);
  58
  59             if (original != null && update != null) {
  60                 List<Queues> origQueues = original.getQueues();
  61                 List<Queues> updatedQueues = update.getQueues();
  62                 if (origQueues != null && !origQueues.isEmpty()) {
  63                     for (Queues origQueue : origQueues) {
  64                         OvsdbNodeAugmentation operNode =
  65                                 state.getBridgeNode(ovsdbNodeIid).get().getAugmentation(
  66                                         OvsdbNodeAugmentation.class);
  67                         List<Queues> operQueues = operNode.getQueues();
  68
  69                         boolean found = false;
  70                         if (updatedQueues != null && !updatedQueues.isEmpty()) {
  71                             for (Queues updatedQueue : updatedQueues) {
  72                                 if (origQueue.getQueueId().equals(updatedQueue.getQueueId())) {
  73                                     found = true;
  74                                     break;
  75                                 }
  76                             }
  77                         }
  78                         if (!found) {
  79                             LOG.debug("Received request to delete Queue entry {}", origQueue.getQueueId());
  80                             Uuid queueUuid = getQueueUuid(operQueues, origQueue.getQueueId());
  81                             if (queueUuid != null) {
  82                                 Queue queue =
  83                                         TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), Queue.class,
  84                                                 null);
  85                                 transaction.add(op.delete(queue.getSchema())
  86                                         .where(queue.getUuidColumn().getSchema().opEqual(
  87                                                 new UUID(queueUuid.getValue())))
  88                                         .build());
  89                             } else {
  90                                 LOG.warn("Unable to delete Queue{} for node {} because it was not found in the "
  91                                         + "operational store, and thus we cannot retrieve its UUID",
  92                                         ovsdbNodeIid, origQueue.getQueueId());
  93                             }
  94                         }
  95                     }
  96                 }
  97             }
  98         }
  99     }
 100
 101     private Uuid getQueueUuid(List<Queues> operQueues, Uri queueId) {
 102         if (operQueues != null && !operQueues.isEmpty()) {
 103             for (Queues queueEntry : operQueues) {
 104                 if (queueEntry.getQueueId().equals(queueId)) {
 105                     return queueEntry.getQueueUuid();
 106                 }
 107             }
 108         }
 109         return null;
 110     }
 111
 112 }