southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/transactions/md/OvsdbQosRemovedCommand.java

   1 /*
   2  * Copyright (c) 2016 Intel 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
   9 package org.opendaylight.ovsdb.southbound.transactions.md;
  10
  11 import java.util.ArrayList;
  12 import java.util.Iterator;
  13 import java.util.List;
  14 import java.util.Map;
  15
  16 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.ovsdb.lib.message.TableUpdates;
  19 import org.opendaylight.ovsdb.lib.notation.UUID;
  20 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  21 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  22 import org.opendaylight.ovsdb.schema.openvswitch.Qos;
  23 import org.opendaylight.ovsdb.schema.openvswitch.OpenVSwitch;
  24 import org.opendaylight.ovsdb.southbound.OvsdbConnectionInstance;
  25 import org.opendaylight.ovsdb.southbound.SouthboundMapper;
  26 import org.opendaylight.ovsdb.southbound.SouthboundUtil;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.QosEntries;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.QosEntriesKey;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 import com.google.common.base.Optional;
  37
  38 public class OvsdbQosRemovedCommand extends AbstractTransactionCommand {
  39     private static final Logger LOG = LoggerFactory.getLogger(OvsdbQueueUpdateCommand.class);
  40
  41     private Map<UUID, Qos> removedQosRows;
  42     private Map<UUID, OpenVSwitch> updatedOpenVSwitchRows;
  43
  44     public OvsdbQosRemovedCommand(OvsdbConnectionInstance key,
  45             TableUpdates updates, DatabaseSchema dbSchema) {
  46         super(key, updates, dbSchema);
  47         updatedOpenVSwitchRows = TyperUtils.extractRowsUpdated(OpenVSwitch.class, getUpdates(), getDbSchema());
  48         removedQosRows = TyperUtils.extractRowsRemoved(Qos.class, getUpdates(), getDbSchema());
  49     }
  50
  51     @Override
  52     public void execute(ReadWriteTransaction transaction) {
  53         final InstanceIdentifier<Node> nodeIId = getOvsdbConnectionInstance().getInstanceIdentifier();
  54         final Optional<Node> ovsdbNode = SouthboundUtil.readNode(transaction, nodeIId);
  55         if (ovsdbNode.isPresent()) {
  56             List<InstanceIdentifier<QosEntries>> result = new ArrayList<>();
  57             InstanceIdentifier<Node> ovsdbNodeIid =
  58                     SouthboundMapper.createInstanceIdentifier(getOvsdbConnectionInstance().getNodeId());
  59             if (removedQosRows != null && !removedQosRows.isEmpty()) {
  60                 for (UUID qosUuid : removedQosRows.keySet()) {
  61                     QosEntriesKey qosKey = getQosEntriesKey(ovsdbNode.get(), qosUuid);
  62                     if (qosKey != null) {
  63                         InstanceIdentifier<QosEntries> iid = ovsdbNodeIid
  64                             .augmentation(OvsdbNodeAugmentation.class)
  65                             .child(QosEntries.class, qosKey);
  66                         result.add(iid);
  67                     }
  68                 }
  69             }
  70             deleteQos(transaction, result);
  71         }
  72     }
  73
  74     private QosEntriesKey getQosEntriesKey(Node node, UUID qosUuid) {
  75         List<QosEntries> qosList = node.getAugmentation(OvsdbNodeAugmentation.class).getQosEntries();
  76         if (qosList == null || qosList.isEmpty()) {
  77             LOG.debug("Deleting Qos {}, Ovsdb Node {} does not have a Qos list.", qosUuid.toString(), node);
  78             return null;
  79         }
  80         Iterator<QosEntries> itr = qosList.iterator();
  81         Uuid qUuid = new Uuid(qosUuid.toString());
  82         while (itr.hasNext()) {
  83             QosEntries qos = itr.next();
  84             if (qos.getQosUuid().equals(qUuid)) {
  85                 return qos.getKey();
  86             }
  87         }
  88         LOG.debug("Deleted Queue {} not found in Ovsdb Node {}", qosUuid.toString(), node);
  89         return null;
  90     }
  91
  92     private void deleteQos(ReadWriteTransaction transaction,
  93             List<InstanceIdentifier<QosEntries>> qosEntryIids) {
  94         for (InstanceIdentifier<QosEntries> qosEntryIid: qosEntryIids) {
  95             transaction.delete(LogicalDatastoreType.OPERATIONAL, qosEntryIid);
  96         }
  97     }
  98 }