impl/src/main/java/org/opendaylight/unimgr/mef/nrp/common/MountPointHelper.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems 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.unimgr.mef.nrp.common;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.MountPoint;
  13 import org.opendaylight.controller.md.sal.binding.api.MountPointService;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.network.topology.topology.topology.types.TopologyNetconf;
  15 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  16 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  17 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23
  24 import com.google.common.base.Optional;
  25
  26 public class MountPointHelper {
  27
  28     /**
  29      * Find a node's NETCONF mount point and then retrieve its DataBroker.
  30      * e.g.
  31      * http://localhost:8080/restconf/config/network-topology:network-topology/
  32      *        topology/topology-netconf/node/{nodeName}/yang-ext:mount/
  33      */
  34     public static Optional<DataBroker> getDataBroker(MountPointService mountService, String nodeName) {
  35         NodeId nodeId = new NodeId(nodeName);
  36
  37         InstanceIdentifier<Node> nodeInstanceId = InstanceIdentifier.builder(NetworkTopology.class)
  38                 .child(Topology.class, new TopologyKey(new TopologyId(TopologyNetconf.QNAME.getLocalName())))
  39                 .child(Node.class, new NodeKey(nodeId))
  40                 .build();
  41
  42         final Optional<MountPoint> nodeOptional = mountService.getMountPoint(nodeInstanceId);
  43
  44         if (!nodeOptional.isPresent()) {
  45             return Optional.absent();
  46         }
  47
  48         MountPoint nodeMountPoint = nodeOptional.get();
  49         return Optional.of(nodeMountPoint.getService(DataBroker.class).get());
  50     }
  51
  52 }