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 com.google.common.base.Optional;
  14 import com.google.common.collect.Sets;
  15 import java.util.Collection;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.concurrent.ExecutionException;
  19 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  23 import org.opendaylight.ovsdb.lib.notation.Mutator;
  24 import org.opendaylight.ovsdb.lib.notation.UUID;
  25 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  26 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  27 import org.opendaylight.ovsdb.schema.openvswitch.AutoAttach;
  28 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  29 import org.opendaylight.ovsdb.southbound.SouthboundProvider;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Autoattach;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  37 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  38 import org.opendaylight.yangtools.yang.binding.DataObject;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 public class AutoAttachRemovedCommand implements TransactCommand {
  44     private static final Logger LOG = LoggerFactory.getLogger(AutoAttachRemovedCommand.class);
  45
  46     @Override
  47     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  48                         Collection<DataTreeModification<Node>> modifications) {
  49         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  50                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  51     }
  52
  53     @Override
  54     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  55                         AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> events) {
  56         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  57                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  58     }
  59
  60     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  61                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> original,
  62                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  63
  64         for (final Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry :
  65                 original.entrySet()) {
  66             final InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  67             final OvsdbNodeAugmentation ovsdbNodeAugmentation = originalEntry.getValue();
  68             final OvsdbNodeAugmentation deletedOvsdbNodeAugmentation = updated.get(ovsdbNodeIid);
  69
  70             if (ovsdbNodeAugmentation != null && deletedOvsdbNodeAugmentation != null) {
  71                 final List<Autoattach> origAutoattachList = ovsdbNodeAugmentation.getAutoattach();
  72                 final List<Autoattach> deletedAutoattachList = deletedOvsdbNodeAugmentation.getAutoattach();
  73                 if (origAutoattachList != null && !origAutoattachList.isEmpty()
  74                         && (deletedAutoattachList == null || deletedAutoattachList.isEmpty())) {
  75
  76                     if (true) {
  77                         // FIXME: Remove if loop after ovs community supports external_ids column in AutoAttach Table
  78                         LOG.info("UNSUPPORTED FUNCTIONALITY: Auto Attach related CRUD operations are not supported for"
  79                                 + " this version of OVSDB schema due to missing external_ids column.");
  80                         return;
  81                     }
  82                     final OvsdbNodeAugmentation currentOvsdbNode =
  83                             state.getBridgeNode(ovsdbNodeIid).get().getAugmentation(OvsdbNodeAugmentation.class);
  84                     final List<Autoattach> currentAutoAttach = currentOvsdbNode.getAutoattach();
  85                     for (final Autoattach origAutoattach : origAutoattachList) {
  86                         final Uri autoAttachId = origAutoattach.getAutoattachId();
  87                         deleteAutoAttach(transaction, ovsdbNodeIid, getAutoAttachUuid(currentAutoAttach, autoAttachId));
  88                     }
  89                 }
  90             }
  91         }
  92     }
  93
  94     private void deleteAutoAttach(TransactionBuilder transaction,
  95             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid,
  96             Uuid autoattachUuid) {
  97
  98         LOG.debug("Received request to delete Autoattach entry {}", autoattachUuid);
  99         final OvsdbBridgeAugmentation bridgeAugmentation = getBridge(ovsdbNodeIid, autoattachUuid);
 100         if (autoattachUuid != null && bridgeAugmentation != null) {
 101             final UUID uuid = new UUID(autoattachUuid.getValue());
 102             final AutoAttach autoattach =
 103                     TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), AutoAttach.class, null);
 104             transaction.add(op.delete(autoattach.getSchema())
 105                     .where(autoattach.getUuidColumn().getSchema().opEqual(uuid))
 106                     .build());
 107             transaction.add(op.comment("AutoAttach: Deleting {} " + uuid
 108                     + " attached to " + bridgeAugmentation.getBridgeName().getValue()));
 109
 110             final Bridge bridge = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
 111                     Bridge.class,null);
 112
 113             transaction.add(op.mutate(bridge.getSchema())
 114                     .addMutation(bridge.getAutoAttachColumn().getSchema(),
 115                             Mutator.DELETE, Sets.newHashSet(uuid))
 116                     .where(bridge.getNameColumn().getSchema()
 117                             .opEqual(bridgeAugmentation.getBridgeName().getValue())).build());
 118
 119             transaction.add(op.comment("Bridge: Mutating " + bridgeAugmentation.getBridgeName().getValue()
 120                     + " to remove autoattach column " + uuid));
 121         } else {
 122             LOG.debug("Unable to delete AutoAttach {} for node {} because it was not found in the operational store, "
 123                     + "and thus we cannot retrieve its UUID", autoattachUuid, ovsdbNodeIid);
 124         }
 125     }
 126
 127     private Uuid getAutoAttachUuid(List<Autoattach> currentAutoAttach, Uri autoAttachId) {
 128         if (currentAutoAttach != null && !currentAutoAttach.isEmpty()) {
 129             for (final Autoattach autoAttach : currentAutoAttach) {
 130                 if (autoAttach.getAutoattachId().equals(autoAttachId)) {
 131                     return autoAttach.getAutoattachUuid();
 132                 }
 133             }
 134         }
 135         return null;
 136     }
 137
 138     private OvsdbBridgeAugmentation getBridge(InstanceIdentifier<OvsdbNodeAugmentation> key, Uuid aaUuid) {
 139         if (aaUuid == null) {
 140             return null;
 141         }
 142         OvsdbBridgeAugmentation bridge = null;
 143         final InstanceIdentifier<Node> nodeIid = key.firstIdentifierOf(Node.class);
 144         try (ReadOnlyTransaction transaction = SouthboundProvider.getDb().newReadOnlyTransaction()) {
 145             final Optional<Node> nodeOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, nodeIid).get();
 146             if (nodeOptional.isPresent()) {
 147                 final List<ManagedNodeEntry> managedNodes =
 148                         nodeOptional.get().getAugmentation(OvsdbNodeAugmentation.class).getManagedNodeEntry();
 149                 for (final ManagedNodeEntry managedNode : managedNodes) {
 150                     final OvsdbBridgeRef ovsdbBridgeRef = managedNode.getBridgeRef();
 151                     final InstanceIdentifier<OvsdbBridgeAugmentation> brIid = ovsdbBridgeRef.getValue()
 152                             .firstIdentifierOf(Node.class).augmentation(OvsdbBridgeAugmentation.class);
 153                     final Optional<OvsdbBridgeAugmentation> optionalBridge =
 154                             transaction.read(LogicalDatastoreType.OPERATIONAL, brIid).get();
 155                     bridge = optionalBridge.orNull();
 156                     if (bridge != null && bridge.getAutoAttach() != null
 157                             && bridge.getAutoAttach().equals(aaUuid)) {
 158                         return bridge;
 159                     }
 160                 }
 161             }
 162         } catch (InterruptedException | ExecutionException e) {
 163             LOG.warn("Error reading from datastore",e);
 164         }
 165         return null;
 166     }
 167 }