org.opendaylight.unimgr.mef.nrp.common.MountPointHelper.java Source code

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Here is the source code for org.opendaylight.unimgr.mef.nrp.common.MountPointHelper.java

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/*
 * Copyright (c) 2016 Cisco Systems and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.unimgr.mef.nrp.common;

import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.MountPoint;
import org.opendaylight.controller.md.sal.binding.api.MountPointService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.network.topology.topology.topology.types.TopologyNetconf;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;

import com.google.common.base.Optional;

public class MountPointHelper {

    /**
     * Find a node's NETCONF mount point and then retrieve its DataBroker.
     * e.g.
     * http://localhost:8080/restconf/config/network-topology:network-topology/
     *        topology/topology-netconf/node/{nodeName}/yang-ext:mount/
     */
    public static Optional<DataBroker> getDataBroker(MountPointService mountService, String nodeName) {
        NodeId nodeId = new NodeId(nodeName);

        InstanceIdentifier<Node> nodeInstanceId = InstanceIdentifier.builder(NetworkTopology.class)
                .child(Topology.class, new TopologyKey(new TopologyId(TopologyNetconf.QNAME.getLocalName())))
                .child(Node.class, new NodeKey(nodeId)).build();

        final Optional<MountPoint> nodeOptional = mountService.getMountPoint(nodeInstanceId);

        if (!nodeOptional.isPresent()) {
            return Optional.absent();
        }

        MountPoint nodeMountPoint = nodeOptional.get();
        return Optional.of(nodeMountPoint.getService(DataBroker.class).get());
    }

}