| package org.onlab.onos.net.topology; |
| |
| import org.onlab.onos.net.ConnectPoint; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.Link; |
| import org.onlab.onos.net.Path; |
| |
| import java.util.Set; |
| |
| /** |
| * Service for providing network topology information. |
| */ |
| public interface TopologyService { |
| |
| /** |
| * Returns the current topology descriptor. |
| * |
| * @return current topology |
| */ |
| Topology currentTopology(); |
| |
| /** |
| * Indicates whether the specified topology is the latest or not. |
| * |
| * @param topology topology descriptor |
| * @return true if the topology is the most recent; false otherwise |
| */ |
| boolean isLatest(Topology topology); |
| |
| /** |
| * Returns the graph view of the specified topology. |
| * |
| * @param topology topology descriptor |
| * @return topology graph view |
| */ |
| TopologyGraph getGraph(Topology topology); |
| |
| /** |
| * Returns the set of clusters in the specified topology. |
| * |
| * @param topology topology descriptor |
| * @return set of topology clusters |
| */ |
| Set<TopologyCluster> getClusters(Topology topology); |
| |
| /** |
| * Returns the cluster with the specified ID. |
| * |
| * @param topology topology descriptor |
| * @param clusterId cluster identifier |
| * @return topology cluster |
| */ |
| TopologyCluster getCluster(Topology topology, ClusterId clusterId); |
| |
| /** |
| * Returns the set of devices that belong to the specified cluster. |
| * |
| * @param topology topology descriptor |
| * @param cluster topology cluster |
| * @return set of cluster devices |
| */ |
| Set<DeviceId> getClusterDevices(Topology topology, TopologyCluster cluster); |
| |
| /** |
| * Returns the set of links that form the specified cluster. |
| * |
| * @param topology topology descriptor |
| * @param cluster topology cluster |
| * @return set of cluster links |
| */ |
| Set<Link> getClusterLinks(Topology topology, TopologyCluster cluster); |
| |
| /** |
| * Returns the set of all shortest paths, precomputed in terms of hop-count, |
| * between the specified source and destination devices. |
| * |
| * @param topology topology descriptor |
| * @param src source device |
| * @param dst destination device |
| * @return set of all shortest paths between the two devices |
| */ |
| Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst); |
| |
| /** |
| * Returns the set of all shortest paths, computed using the supplied |
| * edge-weight entity, between the specified source and destination devices. |
| * |
| * @param topology topology descriptor |
| * @param src source device |
| * @param dst destination device |
| * @return set of all shortest paths between the two devices |
| */ |
| Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst, |
| LinkWeight weight); |
| |
| /** |
| * Indicates whether the specified connection point is part of the network |
| * infrastructure or part of network edge. |
| * |
| * @param topology topology descriptor |
| * @param connectPoint connection point |
| * @return true of connection point is in infrastructure; false if edge |
| */ |
| boolean isInfrastructure(Topology topology, ConnectPoint connectPoint); |
| |
| |
| /** |
| * Indicates whether broadcast is allowed for traffic received on the |
| * specified connection point. |
| * |
| * @param topology topology descriptor |
| * @param connectPoint connection point |
| * @return true if broadcast is permissible |
| */ |
| boolean isBroadcastPoint(Topology topology, ConnectPoint connectPoint); |
| |
| /** |
| * Adds the specified topology listener. |
| * |
| * @param listener topology listener |
| */ |
| void addListener(TopologyListener listener); |
| |
| /** |
| * Removes the specified topology listener. |
| * |
| * @param listener topology listener |
| */ |
| void removeListener(TopologyListener listener); |
| |
| } |