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

   1 /*
   2  * Copyright (c) 2015 Cisco 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 package org.opendaylight.ovsdb.southbound.transactions.md;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.Map;
  15 import org.opendaylight.mdsal.binding.api.ReadWriteTransaction;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  17 import org.opendaylight.ovsdb.lib.message.TableUpdates;
  18 import org.opendaylight.ovsdb.lib.notation.UUID;
  19 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  20 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  21 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  22 import org.opendaylight.ovsdb.schema.openvswitch.Controller;
  23 import org.opendaylight.ovsdb.southbound.InstanceIdentifierCodec;
  24 import org.opendaylight.ovsdb.southbound.OvsdbConnectionInstance;
  25 import org.opendaylight.ovsdb.southbound.SouthboundMapper;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryKey;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32
  33 public class OvsdbControllerRemovedCommand extends AbstractTransactionCommand {
  34     private final InstanceIdentifierCodec instanceIdentifierCodec;
  35     private final Map<UUID, Bridge> oldBridgeRows;
  36     private final Map<UUID, Controller> removedControllerRows;
  37     private final Map<UUID, Bridge> updatedBridgeRows;
  38
  39     public OvsdbControllerRemovedCommand(InstanceIdentifierCodec instanceIdentifierCodec, OvsdbConnectionInstance key,
  40             TableUpdates updates, DatabaseSchema dbSchema) {
  41         super(key, updates, dbSchema);
  42         this.instanceIdentifierCodec = instanceIdentifierCodec;
  43         updatedBridgeRows = TyperUtils.extractRowsUpdated(Bridge.class, getUpdates(), getDbSchema());
  44         oldBridgeRows = TyperUtils.extractRowsOld(Bridge.class, getUpdates(), getDbSchema());
  45         removedControllerRows = TyperUtils.extractRowsRemoved(Controller.class,
  46                 getUpdates(), getDbSchema());
  47     }
  48
  49     @Override
  50     public void execute(ReadWriteTransaction transaction) {
  51         for (Bridge bridge : updatedBridgeRows.values()) {
  52             InstanceIdentifier<Node> bridgeIid =
  53                     SouthboundMapper.createInstanceIdentifier(instanceIdentifierCodec, getOvsdbConnectionInstance(),
  54                             bridge);
  55             deleteControllers(transaction, controllerEntriesToRemove(bridgeIid,bridge));
  56         }
  57     }
  58
  59     private static void deleteControllers(ReadWriteTransaction transaction,
  60             List<InstanceIdentifier<ControllerEntry>> controllerEntryIids) {
  61         for (InstanceIdentifier<ControllerEntry> controllerEntryIid: controllerEntryIids) {
  62             transaction.delete(LogicalDatastoreType.OPERATIONAL, controllerEntryIid);
  63         }
  64     }
  65
  66     private List<InstanceIdentifier<ControllerEntry>> controllerEntriesToRemove(
  67             InstanceIdentifier<Node> bridgeIid, Bridge bridge) {
  68         requireNonNull(bridgeIid);
  69         requireNonNull(bridge);
  70         List<InstanceIdentifier<ControllerEntry>> result = new ArrayList<>();
  71         Bridge oldBridgeNode = oldBridgeRows.get(bridge.getUuid());
  72
  73         if (oldBridgeNode != null && oldBridgeNode.getControllerColumn() != null) {
  74             for (UUID controllerUuid: oldBridgeNode.getControllerColumn().getData()) {
  75                 if (bridge.getControllerColumn() == null
  76                         || !bridge.getControllerColumn().getData().contains(controllerUuid)) {
  77                     Controller controller = removedControllerRows.get(controllerUuid);
  78                     if (controller != null && controller.getTargetColumn() != null) {
  79                         InstanceIdentifier<ControllerEntry> iid = bridgeIid
  80                                 .augmentation(OvsdbBridgeAugmentation.class)
  81                                 .child(ControllerEntry.class,
  82                                         new ControllerEntryKey(new Uri(controller.getTargetColumn().getData())));
  83                         result.add(iid);
  84                     }
  85                 }
  86             }
  87         }
  88         return result;
  89     }
  90
  91 }