Package org.onosproject.net.topology

Interface TopologyStore

All Superinterfaces:

Store<TopologyEvent,TopologyStoreDelegate>

public interface TopologyStore
extends Store<TopologyEvent,TopologyStoreDelegate>

Manages inventory of topology snapshots; not intended for direct use.

Method Summary

Modifier and Type	Method	Description
Topology	currentTopology()	Returns the current topology snapshot.
TopologyCluster	getCluster(Topology topology, ClusterId clusterId)	Returns the cluster of the specified topology.
Set<DeviceId>	getClusterDevices(Topology topology, TopologyCluster cluster)	Returns the cluster of the specified topology.
Set<Link>	getClusterLinks(Topology topology, TopologyCluster cluster)	Returns the cluster of the specified topology.
Set<TopologyCluster>	getClusters(Topology topology)	Returns the set of topology SCC clusters.
Set<DisjointPath>	getDisjointPaths(Topology topology, DeviceId src, DeviceId dst)	Computes and returns the set of disjoint shortest path pairs between src and dst.
Set<DisjointPath>	getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, Map<Link,Object> riskProfile)	Returns the set of pre-computed SRLG shortest paths between src and dest.
Set<DisjointPath>	getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeigher weigher)	Computes and returns the set of disjoint shortest path pairs between src and dst.
Set<DisjointPath>	getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeigher weigher, Map<Link,Object> riskProfile)	Computes and returns the set of SRLG disjoint shortest path pairs between source and dst, given a mapping of edges to SRLG risk groups.
TopologyGraph	getGraph(Topology topology)	Returns the immutable graph view of the current topology.
default Stream<Path>	getKShortestPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeigher weigher)	Computes and returns the k-shortest paths between source and destination devices.
default Set<Path>	getKShortestPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeigher weigher, int maxPaths)	Computes and returns the k-shortest paths between source and destination devices.
Set<Path>	getPaths(Topology topology, DeviceId src, DeviceId dst)	Returns the set of pre-computed shortest paths between src and dest.
Set<Path>	getPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeigher weigher)	Computes and returns the set of shortest paths between src and dest.
boolean	isBroadcastPoint(Topology topology, ConnectPoint connectPoint)	Indicates whether broadcast is allowed for traffic received on the given connection point.
boolean	isInfrastructure(Topology topology, ConnectPoint connectPoint)	Indicates whether the given connect point is part of the network fabric.
boolean	isLatest(Topology topology)	Indicates whether the topology is the latest.
TopologyEvent	updateTopology(ProviderId providerId, GraphDescription graphDescription, List<Event> reasons)	Generates a new topology snapshot from the specified description.

Methods inherited from interface org.onosproject.store.Store

hasDelegate, setDelegate, unsetDelegate

Method Detail

currentTopology

Topology currentTopology()

Returns the current topology snapshot.

Returns:

current topology descriptor

isLatest

boolean isLatest(Topology topology)

Indicates whether the topology is the latest.

Parameters:

topology - topology descriptor

Returns:

true if topology is the most recent one

getGraph

TopologyGraph getGraph(Topology topology)

Returns the immutable graph view of the current topology.

Parameters:

topology - topology descriptor

Returns:

graph view

getClusters

Set<TopologyCluster> getClusters(Topology topology)

Returns the set of topology SCC clusters.

Parameters:

topology - topology descriptor

Returns:

set of clusters

getCluster

TopologyCluster getCluster(Topology topology,
                           ClusterId clusterId)

Returns the cluster of the specified topology.

Parameters:

topology - topology descriptor

clusterId - cluster identity

Returns:

topology cluster

getClusterDevices

Set<DeviceId> getClusterDevices(Topology topology,
                                TopologyCluster cluster)

Returns the cluster of the specified topology.

Parameters:

topology - topology descriptor

cluster - topology cluster

Returns:

set of cluster links

getClusterLinks

Set<Link> getClusterLinks(Topology topology,
                          TopologyCluster cluster)

Returns the cluster of the specified topology.

Parameters:

topology - topology descriptor

cluster - topology cluster

Returns:

set of cluster links

getPaths

Set<Path> getPaths(Topology topology,
                   DeviceId src,
                   DeviceId dst)

Returns the set of pre-computed shortest paths between src and dest.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

Returns:

set of shortest paths

getPaths

Set<Path> getPaths(Topology topology,
                   DeviceId src,
                   DeviceId dst,
                   LinkWeigher weigher)

Computes and returns the set of shortest paths between src and dest.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

weigher - link weight function

Returns:

set of shortest paths

getKShortestPaths

default Set<Path> getKShortestPaths(Topology topology,
                                    DeviceId src,
                                    DeviceId dst,
                                    LinkWeigher weigher,
                                    int maxPaths)

Computes and returns the k-shortest paths between source and destination devices. The first maxPaths paths will be returned in ascending order according to the provided weigher

Parameters:

topology - topology descriptor

src - source device

dst - destination device

weigher - edge-weight entity

maxPaths - maximum number of paths (k)

Returns:

set of k-shortest paths

getKShortestPaths

default Stream<Path> getKShortestPaths(Topology topology,
                                       DeviceId src,
                                       DeviceId dst,
                                       LinkWeigher weigher)

Computes and returns the k-shortest paths between source and destination devices.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

weigher - edge-weight entity

Returns:

stream of k-shortest paths

getDisjointPaths

Set<DisjointPath> getDisjointPaths(Topology topology,
                                   DeviceId src,
                                   DeviceId dst,
                                   LinkWeigher weigher)

Computes and returns the set of disjoint shortest path pairs between src and dst.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

weigher - link weight function

Returns:

set of shortest paths

getDisjointPaths

Set<DisjointPath> getDisjointPaths(Topology topology,
                                   DeviceId src,
                                   DeviceId dst)

Computes and returns the set of disjoint shortest path pairs between src and dst.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

Returns:

set of shortest paths

getDisjointPaths

Set<DisjointPath> getDisjointPaths(Topology topology,
                                   DeviceId src,
                                   DeviceId dst,
                                   LinkWeigher weigher,
                                   Map<Link,Object> riskProfile)

Computes and returns the set of SRLG disjoint shortest path pairs between source and dst, given a mapping of edges to SRLG risk groups.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

weigher - link weight function

riskProfile - map of edges to objects. Edges that map to the same object will be treated as if they were in the same risk group.

Returns:

set of shortest paths

getDisjointPaths

Set<DisjointPath> getDisjointPaths(Topology topology,
                                   DeviceId src,
                                   DeviceId dst,
                                   Map<Link,Object> riskProfile)

Returns the set of pre-computed SRLG shortest paths between src and dest.

Parameters:

topology - topology descriptor

src - source device

dst - destination device

riskProfile - map of edges to objects. Edges that map to the same object will be treated as if they were in the same risk group.

Returns:

set of shortest paths

isInfrastructure

boolean isInfrastructure(Topology topology,
                         ConnectPoint connectPoint)

Indicates whether the given connect point is part of the network fabric.

Parameters:

topology - topology descriptor

connectPoint - connection point

Returns:

true if infrastructure; false otherwise

isBroadcastPoint

boolean isBroadcastPoint(Topology topology,
                         ConnectPoint connectPoint)

Indicates whether broadcast is allowed for traffic received on the given connection point.

Parameters:

topology - topology descriptor

connectPoint - connection point

Returns:

true if broadcast allowed; false otherwise

updateTopology

TopologyEvent updateTopology(ProviderId providerId,
                             GraphDescription graphDescription,
                             List<Event> reasons)

Generates a new topology snapshot from the specified description.

Parameters:

providerId - provider identification

graphDescription - topology graph description

reasons - list of events that triggered the update

Returns:

topology update event or null if the description is old