neutron-ovsdb/src/main/java/org/opendaylight/groupbasedpolicy/neutron/ovsdb/util/EndpointHelper.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.groupbasedpolicy.neutron.ovsdb.util;
   9
  10 import static org.opendaylight.groupbasedpolicy.util.DataStoreHelper.readFromDs;
  11 import static org.opendaylight.groupbasedpolicy.util.IidFactory.endpointIid;
  12
  13 import com.google.common.base.Optional;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  16 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  19 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContextBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  27
  28
  29 public class EndpointHelper {
  30
  31     /**
  32      * Look up the {@link Endpoint} from the Endpoint Registry.
  33      *
  34      * @param epKey The {@link EndpointKey} to look up
  35      * @param transaction The {@link ReadOnlyTransaction}
  36      * @return The corresponding {@link Endpoint}, null if not found
  37      */
  38     public static Endpoint lookupEndpoint(EndpointKey epKey, ReadOnlyTransaction transaction) {
  39
  40         Optional<Endpoint> optionalEp =
  41             readFromDs(LogicalDatastoreType.OPERATIONAL, endpointIid(epKey.getL2Context(), epKey.getMacAddress()),
  42                 transaction);
  43         if (optionalEp.isPresent()) {
  44             return optionalEp.get();
  45         }
  46         return null;
  47     }
  48
  49     /**
  50      * Updates an {@link Endpoint} location based on OVSDB Termination point notification.
  51      * Note this updates the datastore directly. It does not use the Endpoint RPC, as this has
  52      * unfortunate side-effects on EndpointL3 augmentations.
  53      *
  54      * @param endpoint               the network endpoint
  55      * @param nodeIdString           the string representation of the inventory NodeId
  56      * @param nodeConnectorIdString  the string representation of the inventory NodeConnectorId
  57      * @param rwTx                   a reference to ReadWriteTransaction object
  58      */
  59     public static void updateEndpointWithLocation(Endpoint endpoint, String nodeIdString, String nodeConnectorIdString,
  60             ReadWriteTransaction rwTx) {
  61         NodeId invNodeId = new NodeId(nodeIdString);
  62         NodeConnectorId ncId = new NodeConnectorId(nodeConnectorIdString);
  63         OfOverlayContext newOfOverlayCtx =
  64                 new OfOverlayContextBuilder().setNodeId(invNodeId).setNodeConnectorId(ncId).build();
  65         rwTx.merge(LogicalDatastoreType.OPERATIONAL,
  66                 IidFactory.endpointIid(endpoint.getKey()).augmentation(OfOverlayContext.class), newOfOverlayCtx);
  67         DataStoreHelper.submitToDs(rwTx);
  68     }
  69
  70     public static void updateEndpointRemoveLocation(Endpoint endpoint, ReadWriteTransaction rwTx) {
  71         EndpointBuilder epBuilder = new EndpointBuilder(endpoint);
  72         Endpoint newEp = epBuilder.build();
  73         epBuilder.removeAugmentation(OfOverlayContext.class);
  74         rwTx.put(LogicalDatastoreType.OPERATIONAL, IidFactory.endpointIid(newEp.getL2Context(), newEp.getMacAddress()),
  75             newEp);
  76         DataStoreHelper.submitToDs(rwTx);
  77     }
  78
  79 }