southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/ovsdb/transact/AutoAttachRemovedCommand.java

   1 /*
   2  * Copyright (c) 2016 Inocybe Technologies 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.List;
  14 import java.util.Map;
  15 import java.util.concurrent.ExecutionException;
  16
  17 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.ovsdb.lib.notation.Mutator;
  21 import org.opendaylight.ovsdb.lib.notation.UUID;
  22 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  23 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  24 import org.opendaylight.ovsdb.schema.openvswitch.AutoAttach;
  25 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  26 import org.opendaylight.ovsdb.southbound.SouthboundProvider;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Autoattach;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  35 import org.opendaylight.yangtools.yang.binding.DataObject;
  36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 import com.google.common.base.Optional;
  41 import com.google.common.base.Preconditions;
  42 import com.google.common.collect.Sets;
  43
  44 public class AutoAttachRemovedCommand extends AbstractTransactCommand {
  45     private static final Logger LOG = LoggerFactory.getLogger(AutoAttachRemovedCommand.class);
  46
  47     public AutoAttachRemovedCommand(BridgeOperationalState state,
  48             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes) {
  49         super(state, changes);
  50     }
  51
  52     @Override
  53     public void execute(TransactionBuilder transaction) {
  54
  55         // FIXME: Remove if loop after ovs community supports external_ids column in AutoAttach Table
  56         if (true) {
  57             try {
  58                 throw new UnsupportedOperationException("CRUD operations not supported from ODL for auto_attach column for"
  59                         + " this version of ovsdb schema due to missing external_ids column");
  60             } catch (UnsupportedOperationException e) {
  61                 LOG.debug(e.getMessage());
  62             }
  63             return;
  64         }
  65
  66         @SuppressWarnings("unused")
  67         Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> original =
  68         TransactUtils.extractOriginal(getChanges(), OvsdbNodeAugmentation.class);
  69
  70         Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> deleted =
  71                 TransactUtils.extractUpdated(getChanges(), OvsdbNodeAugmentation.class);
  72
  73         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : original.entrySet()) {
  74             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  75             OvsdbNodeAugmentation ovsdbNodeAugmentation = originalEntry.getValue();
  76             OvsdbNodeAugmentation deletedOvsdbNodeAugmentation = deleted.get(ovsdbNodeIid);
  77
  78             if (ovsdbNodeAugmentation != null && deletedOvsdbNodeAugmentation != null) {
  79                 List<Autoattach> origAutoattachList = ovsdbNodeAugmentation.getAutoattach();
  80                 List<Autoattach> deletedAutoattachList = deletedOvsdbNodeAugmentation.getAutoattach();
  81                 if(origAutoattachList != null && !origAutoattachList.isEmpty() &&
  82                         (deletedAutoattachList == null || deletedAutoattachList.isEmpty())) {
  83
  84                     OvsdbNodeAugmentation currentOvsdbNode =
  85                             getOperationalState().getBridgeNode(ovsdbNodeIid).get().getAugmentation(OvsdbNodeAugmentation.class);
  86                     List<Autoattach> currentAutoAttach = currentOvsdbNode.getAutoattach();
  87                     for (Autoattach origAutoattach : origAutoattachList) {
  88                         Uri autoAttachId = origAutoattach.getAutoattachId();
  89                         deleteAutoAttach(transaction, ovsdbNodeIid, getAutoAttachUuid(currentAutoAttach, autoAttachId));
  90                     }
  91                 }
  92             }
  93         }
  94     }
  95
  96     private void deleteAutoAttach(TransactionBuilder transaction,
  97             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid,
  98             Uuid autoattachUuid) {
  99
 100         LOG.debug("Received request to delete Autoattach entry {}", autoattachUuid);
 101         OvsdbBridgeAugmentation bridgeAugmentation = getBridge(ovsdbNodeIid, autoattachUuid);
 102         if (autoattachUuid != null && bridgeAugmentation != null) {
 103             UUID uuid = new UUID(autoattachUuid.getValue());
 104             AutoAttach autoattach = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), AutoAttach.class, null);
 105             transaction.add(op.delete(autoattach.getSchema())
 106                     .where(autoattach.getUuidColumn().getSchema().opEqual(uuid))
 107                     .build());
 108             transaction.add(op.comment("AutoAttach: Deleting {} " + uuid
 109                     + " attached to " + bridgeAugmentation.getBridgeName().getValue()));
 110
 111             Bridge bridge = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
 112                     Bridge.class,null);
 113
 114             transaction.add(op.mutate(bridge.getSchema())
 115                     .addMutation(bridge.getAutoAttachColumn().getSchema(),
 116                             Mutator.DELETE, Sets.newHashSet(uuid))
 117                     .where(bridge.getNameColumn().getSchema()
 118                             .opEqual(bridgeAugmentation.getBridgeName().getValue())).build());
 119
 120             transaction.add(op.comment("Bridge: Mutating " + bridgeAugmentation.getBridgeName().getValue()
 121                     + " to remove autoattach column " + uuid));
 122         } else {
 123             LOG.debug("Unable to delete AutoAttach {} for node {} because it was not found in the operational store, "
 124                     + "and thus we cannot retrieve its UUID", autoattachUuid, ovsdbNodeIid);
 125         }
 126     }
 127
 128     private Uuid getAutoAttachUuid(List<Autoattach> currentAutoAttach, Uri autoAttachId) {
 129         if (currentAutoAttach != null && !currentAutoAttach.isEmpty()) {
 130             for (Autoattach autoAttach : currentAutoAttach) {
 131                 if (autoAttach.getAutoattachId().equals(autoAttachId)) {
 132                     return autoAttach.getAutoattachUuid();
 133                 }
 134             }
 135         }
 136         return null;
 137     }
 138
 139     private OvsdbBridgeAugmentation getBridge(InstanceIdentifier<OvsdbNodeAugmentation> key, Uuid aaUuid) {
 140         Preconditions.checkNotNull(aaUuid);
 141         OvsdbBridgeAugmentation bridge = null;
 142         InstanceIdentifier<Node> nodeIid = key.firstIdentifierOf(Node.class);
 143         try (ReadOnlyTransaction transaction = SouthboundProvider.getDb().newReadOnlyTransaction()) {
 144             Optional<Node> nodeOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, nodeIid).get();
 145             if (nodeOptional.isPresent()) {
 146                 List<ManagedNodeEntry> managedNodes = nodeOptional.get().getAugmentation(OvsdbNodeAugmentation.class).getManagedNodeEntry();
 147                 for (ManagedNodeEntry managedNode : managedNodes) {
 148                     OvsdbBridgeRef ovsdbBridgeRef = managedNode.getBridgeRef();
 149                     InstanceIdentifier<OvsdbBridgeAugmentation> brIid = ovsdbBridgeRef.getValue()
 150                             .firstIdentifierOf(Node.class).augmentation(OvsdbBridgeAugmentation.class);
 151                     Optional<OvsdbBridgeAugmentation> optionalBridge = transaction.read(LogicalDatastoreType.OPERATIONAL, brIid).get();
 152                     bridge = optionalBridge.orNull();
 153                     if(bridge != null && bridge.getAutoAttach() != null
 154                             && bridge.getAutoAttach().equals(aaUuid)) {
 155                         return bridge;
 156                     }
 157                 }
 158             }
 159         } catch (InterruptedException | ExecutionException e) {
 160             LOG.warn("Error reading from datastore",e);
 161         }
 162         return null;
 163     }
 164 }