tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 1 | package org.onlab.onos.net.trivial.impl; |
| 2 | |
| 3 | import org.apache.felix.scr.annotations.Activate; |
| 4 | import org.apache.felix.scr.annotations.Component; |
| 5 | import org.apache.felix.scr.annotations.Deactivate; |
| 6 | import org.apache.felix.scr.annotations.Reference; |
| 7 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 8 | import org.apache.felix.scr.annotations.Service; |
| 9 | import org.onlab.graph.Graph; |
| 10 | import org.onlab.onos.event.AbstractListenerRegistry; |
| 11 | import org.onlab.onos.event.Event; |
| 12 | import org.onlab.onos.event.EventDeliveryService; |
| 13 | import org.onlab.onos.net.ConnectPoint; |
| 14 | import org.onlab.onos.net.DeviceId; |
| 15 | import org.onlab.onos.net.Path; |
| 16 | import org.onlab.onos.net.provider.AbstractProviderRegistry; |
| 17 | import org.onlab.onos.net.provider.AbstractProviderService; |
| 18 | import org.onlab.onos.net.topology.LinkWeight; |
| 19 | import org.onlab.onos.net.topology.TopoEdge; |
| 20 | import org.onlab.onos.net.topology.TopoVertex; |
| 21 | import org.onlab.onos.net.topology.Topology; |
| 22 | import org.onlab.onos.net.topology.TopologyCluster; |
| 23 | import org.onlab.onos.net.topology.TopologyDescription; |
| 24 | import org.onlab.onos.net.topology.TopologyEvent; |
| 25 | import org.onlab.onos.net.topology.TopologyListener; |
| 26 | import org.onlab.onos.net.topology.TopologyProvider; |
| 27 | import org.onlab.onos.net.topology.TopologyProviderRegistry; |
| 28 | import org.onlab.onos.net.topology.TopologyProviderService; |
| 29 | import org.onlab.onos.net.topology.TopologyService; |
| 30 | import org.slf4j.Logger; |
| 31 | |
| 32 | import java.util.List; |
| 33 | import java.util.Set; |
| 34 | |
| 35 | import static com.google.common.base.Preconditions.checkNotNull; |
| 36 | import static org.slf4j.LoggerFactory.getLogger; |
| 37 | |
| 38 | /** |
| 39 | * Provides basic implementation of the topology SB & NB APIs. |
| 40 | */ |
| 41 | @Component(immediate = true) |
| 42 | @Service |
| 43 | public class SimpleTopologyManager |
| 44 | extends AbstractProviderRegistry<TopologyProvider, TopologyProviderService> |
| 45 | implements TopologyService, TopologyProviderRegistry { |
| 46 | |
| 47 | public static final String TOPOLOGY_NULL = "Topology cannot be null"; |
| 48 | private static final String DEVICE_ID_NULL = "Device ID cannot be null"; |
| 49 | public static final String CONNECTION_POINT_NULL = "Connection point cannot be null"; |
| 50 | |
| 51 | private final Logger log = getLogger(getClass()); |
| 52 | |
| 53 | private final AbstractListenerRegistry<TopologyEvent, TopologyListener> |
| 54 | listenerRegistry = new AbstractListenerRegistry<>(); |
| 55 | |
tom | 0efbb1d | 2014-09-09 11:54:28 -0700 | [diff] [blame] | 56 | private final SimpleTopologyStore store = new SimpleTopologyStore(); |
| 57 | |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 58 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 59 | private EventDeliveryService eventDispatcher; |
| 60 | |
| 61 | |
| 62 | @Activate |
| 63 | public void activate() { |
| 64 | eventDispatcher.addSink(TopologyEvent.class, listenerRegistry); |
| 65 | log.info("Started"); |
| 66 | } |
| 67 | |
| 68 | @Deactivate |
| 69 | public void deactivate() { |
| 70 | eventDispatcher.removeSink(TopologyEvent.class); |
| 71 | log.info("Stopped"); |
| 72 | } |
| 73 | |
| 74 | @Override |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 75 | public Topology currentTopology() { |
| 76 | return store.currentTopology(); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | @Override |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 80 | public boolean isLatest(Topology topology) { |
| 81 | checkNotNull(topology, TOPOLOGY_NULL); |
| 82 | return store.isLatest(topology); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | @Override |
| 86 | public Set<TopologyCluster> getClusters(Topology topology) { |
| 87 | checkNotNull(topology, TOPOLOGY_NULL); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 88 | return store.getClusters(topology); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public Graph<TopoVertex, TopoEdge> getGraph(Topology topology) { |
| 93 | checkNotNull(topology, TOPOLOGY_NULL); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 94 | return store.getGraph(topology); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | @Override |
| 98 | public Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst) { |
| 99 | checkNotNull(topology, TOPOLOGY_NULL); |
| 100 | checkNotNull(src, DEVICE_ID_NULL); |
| 101 | checkNotNull(dst, DEVICE_ID_NULL); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 102 | return store.getPaths(topology, src, dst); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight) { |
| 107 | checkNotNull(topology, TOPOLOGY_NULL); |
| 108 | checkNotNull(src, DEVICE_ID_NULL); |
| 109 | checkNotNull(dst, DEVICE_ID_NULL); |
| 110 | checkNotNull(weight, "Link weight cannot be null"); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 111 | return store.getPaths(topology, src, dst, weight); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public boolean isInfrastructure(Topology topology, ConnectPoint connectPoint) { |
| 116 | checkNotNull(topology, TOPOLOGY_NULL); |
| 117 | checkNotNull(connectPoint, CONNECTION_POINT_NULL); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 118 | return store.isInfrastructure(topology, connectPoint); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | @Override |
| 122 | public boolean isInBroadcastTree(Topology topology, ConnectPoint connectPoint) { |
| 123 | checkNotNull(topology, TOPOLOGY_NULL); |
| 124 | checkNotNull(connectPoint, CONNECTION_POINT_NULL); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 125 | return store.isInBroadcastTree(topology, connectPoint); |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void addListener(TopologyListener listener) { |
| 130 | listenerRegistry.addListener(listener); |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public void removeListener(TopologyListener listener) { |
| 135 | listenerRegistry.removeListener(listener); |
| 136 | } |
| 137 | |
| 138 | // Personalized host provider service issued to the supplied provider. |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 139 | @Override |
| 140 | protected TopologyProviderService createProviderService(TopologyProvider provider) { |
| 141 | return new InternalTopologyProviderService(provider); |
| 142 | } |
| 143 | |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 144 | private class InternalTopologyProviderService |
| 145 | extends AbstractProviderService<TopologyProvider> |
| 146 | implements TopologyProviderService { |
| 147 | |
| 148 | InternalTopologyProviderService(TopologyProvider provider) { |
| 149 | super(provider); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | public void topologyChanged(TopologyDescription topoDescription, |
| 154 | List<Event> reasons) { |
| 155 | checkNotNull(topoDescription, "Topology description cannot be null"); |
tom | cbff939 | 2014-09-10 00:45:23 -0700 | [diff] [blame] | 156 | |
| 157 | log.info("Topology changed due to: {}", // to be removed soon |
| 158 | reasons == null ? "initial compute" : reasons); |
tom | dc361b6 | 2014-09-09 20:36:52 -0700 | [diff] [blame] | 159 | TopologyEvent event = store.updateTopology(topoDescription, reasons); |
| 160 | if (event != null) { |
| 161 | log.info("Topology changed due to: {}", |
| 162 | reasons == null ? "initial compute" : reasons); |
| 163 | eventDispatcher.post(event); |
| 164 | } |
tom | cfde062 | 2014-09-09 11:02:42 -0700 | [diff] [blame] | 165 | } |
| 166 | } |
| 167 | |
| 168 | } |