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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  15 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  18 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContextBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 import com.google.common.base.Optional;
  30
  31
  32 public class EndpointHelper {
  33     private static final Logger LOG = LoggerFactory.getLogger(EndpointHelper.class);
  34
  35     /**
  36      * Look up the {@link Endpoint} from the Endpoint Registry.
  37      *
  38      * @param epKey The {@link EndpointKey} to look up
  39      * @param transaction The {@link ReadOnlyTransaction}
  40      * @return The corresponding {@link Endpoint}, null if not found
  41      */
  42     public static Endpoint lookupEndpoint(EndpointKey epKey, ReadOnlyTransaction transaction) {
  43
  44         Optional<Endpoint> optionalEp = readFromDs(LogicalDatastoreType.OPERATIONAL, endpointIid(epKey.getL2Context(),epKey.getMacAddress()), transaction );
  45         if (optionalEp.isPresent()) {
  46             return optionalEp.get();
  47         }
  48         return null;
  49     }
  50
  51     /**
  52      * Updates an {@link Endpoint} location based on OVSDB Termination point notification.
  53      *
  54      * Note this updates the datastore directly. It does not use the Endpoint RPC, as this has
  55      * unfortunate side-effects on EndpointL3 augmentations.
  56      *
  57      * @param endpoint               the network endpoint
  58      * @param nodeIdString           the string representation of the inventory NodeId
  59      * @param nodeConnectorIdString  the string representation of the inventory NodeConnectorId
  60      * @param rwTx                   a reference to ReadWriteTransaction object
  61      */
  62     public static void updateEndpointWithLocation(Endpoint endpoint, String nodeIdString,
  63         String nodeConnectorIdString, ReadWriteTransaction rwTx) {
  64
  65         NodeId invNodeId = new NodeId(nodeIdString);
  66         NodeConnectorId ncId = new NodeConnectorId(nodeConnectorIdString);
  67
  68         OfOverlayContext ofc = endpoint.getAugmentation(OfOverlayContext.class);
  69         OfOverlayContextBuilder ofcBuilder = new OfOverlayContextBuilder(ofc).setNodeConnectorId(ncId).setNodeId(invNodeId);
  70         EndpointBuilder epBuilder = new EndpointBuilder(endpoint);
  71         epBuilder.addAugmentation(OfOverlayContext.class, ofcBuilder.build());
  72         Endpoint newEp = epBuilder.build();
  73         rwTx.put(LogicalDatastoreType.OPERATIONAL, IidFactory.endpointIid(newEp.getL2Context(), newEp.getMacAddress()), newEp);
  74         DataStoreHelper.submitToDs(rwTx);
  75     }
  76
  77     public static void updateEndpointRemoveLocation(Endpoint endpoint, ReadWriteTransaction rwTx) {
  78         EndpointBuilder epBuilder = new EndpointBuilder(endpoint);
  79         Endpoint newEp = epBuilder.build();
  80         epBuilder.removeAugmentation(OfOverlayContext.class);
  81         rwTx.put(LogicalDatastoreType.OPERATIONAL, IidFactory.endpointIid(newEp.getL2Context(), newEp.getMacAddress()), newEp);
  82         DataStoreHelper.submitToDs(rwTx);
  83     }
  84
  85 }