Let’s say we have a node “node_oo1″ and we want to lookup all the node connectors associated with this node in MD-SAL. First we create an instance identifier using the nodeId and nodeKey and then we lookup the node from MD-SAL. Once we get the node, we invoke getNodeConnector() api to get a list of node connectors.
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import org.opendaylight.controller.sal.binding.api.data.DataProviderService; import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector; import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node; import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey; import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; .... .... .... //session is an object of type ProviderContext DataProviderService dataProviderService = session.getSALService(DataProviderService.class); NodeId nodeId = new NodeId("node_oo1"); NodeKey nodeKey = new NodeKey(nodeId); InstanceIdentifier<Node><Node> nodeIdentifier = InstanceIdentifier.builder(Nodes.class). child(Node.class,nodeKey).toInstance(); Node node = (Node) dataProviderService.readOperationalData(nodeIdentifier); List<NodeConnector> nodeConnetorList = node.getNodeConnector(); |
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How to use data broker to read details from Operational Data?