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.Collection;
  14 import java.util.List;
  15 import java.util.Map;
  16 import java.util.concurrent.ExecutionException;
  17
  18 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.ovsdb.lib.notation.Mutator;
  23 import org.opendaylight.ovsdb.lib.notation.UUID;
  24 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  25 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  26 import org.opendaylight.ovsdb.schema.openvswitch.AutoAttach;
  27 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  28 import org.opendaylight.ovsdb.southbound.SouthboundProvider;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.Autoattach;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  37 import org.opendaylight.yangtools.yang.binding.DataObject;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 import com.google.common.base.Optional;
  43 import com.google.common.collect.Sets;
  44
  45 public class AutoAttachRemovedCommand implements TransactCommand {
  46     private static final Logger LOG = LoggerFactory.getLogger(AutoAttachRemovedCommand.class);
  47
  48     @Override
  49     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  50                         Collection<DataTreeModification<Node>> modifications) {
  51         execute(transaction, state, TransactUtils.extractOriginal(modifications, OvsdbNodeAugmentation.class),
  52                 TransactUtils.extractUpdated(modifications, OvsdbNodeAugmentation.class));
  53     }
  54
  55     @Override
  56     public void execute(TransactionBuilder transaction, BridgeOperationalState state,
  57                         AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> events) {
  58         execute(transaction, state, TransactUtils.extractOriginal(events, OvsdbNodeAugmentation.class),
  59                 TransactUtils.extractUpdated(events, OvsdbNodeAugmentation.class));
  60     }
  61
  62     private void execute(TransactionBuilder transaction, BridgeOperationalState state,
  63                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> original,
  64                          Map<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> updated) {
  65
  66         // FIXME: Remove if loop after ovs community supports external_ids column in AutoAttach Table
  67         if (true) {
  68             try {
  69                 throw new UnsupportedOperationException("CRUD operations not supported from ODL for auto_attach column for"
  70                         + " this version of ovsdb schema due to missing external_ids column");
  71             } catch (UnsupportedOperationException e) {
  72                 LOG.debug(e.getMessage());
  73             }
  74             return;
  75         }
  76
  77         for (Map.Entry<InstanceIdentifier<OvsdbNodeAugmentation>, OvsdbNodeAugmentation> originalEntry : original.entrySet()) {
  78             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid = originalEntry.getKey();
  79             OvsdbNodeAugmentation ovsdbNodeAugmentation = originalEntry.getValue();
  80             OvsdbNodeAugmentation deletedOvsdbNodeAugmentation = updated.get(ovsdbNodeIid);
  81
  82             if (ovsdbNodeAugmentation != null && deletedOvsdbNodeAugmentation != null) {
  83                 List<Autoattach> origAutoattachList = ovsdbNodeAugmentation.getAutoattach();
  84                 List<Autoattach> deletedAutoattachList = deletedOvsdbNodeAugmentation.getAutoattach();
  85                 if(origAutoattachList != null && !origAutoattachList.isEmpty() &&
  86                         (deletedAutoattachList == null || deletedAutoattachList.isEmpty())) {
  87
  88                     OvsdbNodeAugmentation currentOvsdbNode =
  89                             state.getBridgeNode(ovsdbNodeIid).get().getAugmentation(OvsdbNodeAugmentation.class);
  90                     List<Autoattach> currentAutoAttach = currentOvsdbNode.getAutoattach();
  91                     for (Autoattach origAutoattach : origAutoattachList) {
  92                         Uri autoAttachId = origAutoattach.getAutoattachId();
  93                         deleteAutoAttach(transaction, ovsdbNodeIid, getAutoAttachUuid(currentAutoAttach, autoAttachId));
  94                     }
  95                 }
  96             }
  97         }
  98     }
  99
 100     private void deleteAutoAttach(TransactionBuilder transaction,
 101             InstanceIdentifier<OvsdbNodeAugmentation> ovsdbNodeIid,
 102             Uuid autoattachUuid) {
 103
 104         LOG.debug("Received request to delete Autoattach entry {}", autoattachUuid);
 105         OvsdbBridgeAugmentation bridgeAugmentation = getBridge(ovsdbNodeIid, autoattachUuid);
 106         if (autoattachUuid != null && bridgeAugmentation != null) {
 107             UUID uuid = new UUID(autoattachUuid.getValue());
 108             AutoAttach autoattach = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(), AutoAttach.class, null);
 109             transaction.add(op.delete(autoattach.getSchema())
 110                     .where(autoattach.getUuidColumn().getSchema().opEqual(uuid))
 111                     .build());
 112             transaction.add(op.comment("AutoAttach: Deleting {} " + uuid
 113                     + " attached to " + bridgeAugmentation.getBridgeName().getValue()));
 114
 115             Bridge bridge = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
 116                     Bridge.class,null);
 117
 118             transaction.add(op.mutate(bridge.getSchema())
 119                     .addMutation(bridge.getAutoAttachColumn().getSchema(),
 120                             Mutator.DELETE, Sets.newHashSet(uuid))
 121                     .where(bridge.getNameColumn().getSchema()
 122                             .opEqual(bridgeAugmentation.getBridgeName().getValue())).build());
 123
 124             transaction.add(op.comment("Bridge: Mutating " + bridgeAugmentation.getBridgeName().getValue()
 125                     + " to remove autoattach column " + uuid));
 126         } else {
 127             LOG.debug("Unable to delete AutoAttach {} for node {} because it was not found in the operational store, "
 128                     + "and thus we cannot retrieve its UUID", autoattachUuid, ovsdbNodeIid);
 129         }
 130     }
 131
 132     private Uuid getAutoAttachUuid(List<Autoattach> currentAutoAttach, Uri autoAttachId) {
 133         if (currentAutoAttach != null && !currentAutoAttach.isEmpty()) {
 134             for (Autoattach autoAttach : currentAutoAttach) {
 135                 if (autoAttach.getAutoattachId().equals(autoAttachId)) {
 136                     return autoAttach.getAutoattachUuid();
 137                 }
 138             }
 139         }
 140         return null;
 141     }
 142
 143     private OvsdbBridgeAugmentation getBridge(InstanceIdentifier<OvsdbNodeAugmentation> key, Uuid aaUuid) {
 144         if (aaUuid == null) {
 145             return null;
 146         }
 147         OvsdbBridgeAugmentation bridge = null;
 148         InstanceIdentifier<Node> nodeIid = key.firstIdentifierOf(Node.class);
 149         try (ReadOnlyTransaction transaction = SouthboundProvider.getDb().newReadOnlyTransaction()) {
 150             Optional<Node> nodeOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, nodeIid).get();
 151             if (nodeOptional.isPresent()) {
 152                 List<ManagedNodeEntry> managedNodes = nodeOptional.get().getAugmentation(OvsdbNodeAugmentation.class).getManagedNodeEntry();
 153                 for (ManagedNodeEntry managedNode : managedNodes) {
 154                     OvsdbBridgeRef ovsdbBridgeRef = managedNode.getBridgeRef();
 155                     InstanceIdentifier<OvsdbBridgeAugmentation> brIid = ovsdbBridgeRef.getValue()
 156                             .firstIdentifierOf(Node.class).augmentation(OvsdbBridgeAugmentation.class);
 157                     Optional<OvsdbBridgeAugmentation> optionalBridge = transaction.read(LogicalDatastoreType.OPERATIONAL, brIid).get();
 158                     bridge = optionalBridge.orNull();
 159                     if(bridge != null && bridge.getAutoAttach() != null
 160                             && bridge.getAutoAttach().equals(aaUuid)) {
 161                         return bridge;
 162                     }
 163                 }
 164             }
 165         } catch (InterruptedException | ExecutionException e) {
 166             LOG.warn("Error reading from datastore",e);
 167         }
 168         return null;
 169     }
 170 }