-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.getNodeConnectorKey;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.getNodeKey;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.toTerminationPoint;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.toTerminationPointId;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.toTopologyLink;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.toTopologyNode;
-import static org.opendaylight.md.controller.topology.manager.FlowCapableNodeMapping.toTopologyNodeId;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;