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 java.util.ArrayList;
  11 import java.util.List;
  12 import java.util.Map;
  13
  14 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.ovsdb.lib.message.TableUpdates;
  17 import org.opendaylight.ovsdb.lib.notation.UUID;
  18 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  19 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  20 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  21 import org.opendaylight.ovsdb.schema.openvswitch.Controller;
  22 import org.opendaylight.ovsdb.southbound.OvsdbConnectionInstance;
  23 import org.opendaylight.ovsdb.southbound.SouthboundMapper;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryKey;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30
  31 import com.google.common.base.Preconditions;
  32
  33 public class OvsdbControllerRemovedCommand extends AbstractTransactionCommand {
  34
  35
  36
  37     private Map<UUID, Bridge> oldBridgeRows;
  38     private Map<UUID, Controller> removedControllerRows;
  39     private Map<UUID, Bridge> updatedBridgeRows;
  40
  41     public OvsdbControllerRemovedCommand(OvsdbConnectionInstance key,
  42             TableUpdates updates, DatabaseSchema dbSchema) {
  43         super(key, updates, dbSchema);
  44         updatedBridgeRows = TyperUtils.extractRowsUpdated(Bridge.class, getUpdates(), getDbSchema());
  45         oldBridgeRows = TyperUtils.extractRowsOld(Bridge.class, getUpdates(), getDbSchema());
  46         removedControllerRows = TyperUtils.extractRowsRemoved(Controller.class,
  47                 getUpdates(), getDbSchema());
  48     }
  49
  50     @Override
  51     public void execute(ReadWriteTransaction transaction) {
  52         for (Bridge bridge : updatedBridgeRows.values()) {
  53             InstanceIdentifier<Node> bridgeIid =
  54                     SouthboundMapper.createInstanceIdentifier(getOvsdbConnectionInstance(), bridge);
  55             deleteControllers(transaction, controllerEntriesToRemove(bridgeIid,bridge));
  56         }
  57     }
  58
  59     private 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         Preconditions.checkNotNull(bridgeIid);
  69         Preconditions.checkNotNull(bridge);
  70         List<InstanceIdentifier<ControllerEntry>> result =
  71                 new ArrayList<>();
  72         Bridge oldBridgeNode = oldBridgeRows.get(bridge.getUuid());
  73
  74         if (oldBridgeNode != null && oldBridgeNode.getControllerColumn() != null) {
  75             for (UUID controllerUuid: oldBridgeNode.getControllerColumn().getData()) {
  76                 if (bridge.getControllerColumn() == null
  77                         || !bridge.getControllerColumn().getData().contains(controllerUuid)) {
  78                     Controller controller = removedControllerRows.get(controllerUuid);
  79                     if (controller != null && controller.getTargetColumn() != null) {
  80                         InstanceIdentifier<ControllerEntry> iid = bridgeIid
  81                                 .augmentation(OvsdbBridgeAugmentation.class)
  82                                 .child(ControllerEntry.class,
  83                                         new ControllerEntryKey(new Uri(controller.getTargetColumn().getData())));
  84                         result.add(iid);
  85                     }
  86                 }
  87             }
  88         }
  89         return result;
  90     }
  91
  92 }