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Diffstat (limited to 'framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java')
-rw-r--r-- | framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java b/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java new file mode 100644 index 00000000..6a89c019 --- /dev/null +++ b/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java @@ -0,0 +1,157 @@ +/* + * Copyright 2014 Open Networking Laboratory + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.onosproject.store.trivial; + +import org.apache.felix.scr.annotations.Activate; +import org.apache.felix.scr.annotations.Component; +import org.apache.felix.scr.annotations.Deactivate; +import org.apache.felix.scr.annotations.Service; +import org.onosproject.common.DefaultTopology; +import org.onosproject.event.Event; +import org.onosproject.net.ConnectPoint; +import org.onosproject.net.DeviceId; +import org.onosproject.net.Link; +import org.onosproject.net.Path; +import org.onosproject.net.provider.ProviderId; +import org.onosproject.net.topology.ClusterId; +import org.onosproject.net.topology.GraphDescription; +import org.onosproject.net.topology.LinkWeight; +import org.onosproject.net.topology.Topology; +import org.onosproject.net.topology.TopologyCluster; +import org.onosproject.net.topology.TopologyEvent; +import org.onosproject.net.topology.TopologyGraph; +import org.onosproject.net.topology.TopologyStore; +import org.onosproject.net.topology.TopologyStoreDelegate; +import org.onosproject.store.AbstractStore; +import org.slf4j.Logger; + +import java.util.List; +import java.util.Set; + +import static org.slf4j.LoggerFactory.getLogger; + +/** + * Manages inventory of topology snapshots using trivial in-memory + * structures implementation. + */ +@Component(immediate = true) +@Service +public class SimpleTopologyStore + extends AbstractStore<TopologyEvent, TopologyStoreDelegate> + implements TopologyStore { + + private final Logger log = getLogger(getClass()); + + private volatile DefaultTopology current; + + @Activate + public void activate() { + log.info("Started"); + } + + @Deactivate + public void deactivate() { + log.info("Stopped"); + } + @Override + public Topology currentTopology() { + return current; + } + + @Override + public boolean isLatest(Topology topology) { + // Topology is current only if it is the same as our current topology + return topology == current; + } + + @Override + public TopologyGraph getGraph(Topology topology) { + return defaultTopology(topology).getGraph(); + } + + @Override + public Set<TopologyCluster> getClusters(Topology topology) { + return defaultTopology(topology).getClusters(); + } + + @Override + public TopologyCluster getCluster(Topology topology, ClusterId clusterId) { + return defaultTopology(topology).getCluster(clusterId); + } + + @Override + public Set<DeviceId> getClusterDevices(Topology topology, TopologyCluster cluster) { + return defaultTopology(topology).getClusterDevices(cluster); + } + + @Override + public Set<Link> getClusterLinks(Topology topology, TopologyCluster cluster) { + return defaultTopology(topology).getClusterLinks(cluster); + } + + @Override + public Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst) { + return defaultTopology(topology).getPaths(src, dst); + } + + @Override + public Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst, + LinkWeight weight) { + return defaultTopology(topology).getPaths(src, dst, weight); + } + + @Override + public boolean isInfrastructure(Topology topology, ConnectPoint connectPoint) { + return defaultTopology(topology).isInfrastructure(connectPoint); + } + + @Override + public boolean isBroadcastPoint(Topology topology, ConnectPoint connectPoint) { + return defaultTopology(topology).isBroadcastPoint(connectPoint); + } + + @Override + public TopologyEvent updateTopology(ProviderId providerId, + GraphDescription graphDescription, + List<Event> reasons) { + // First off, make sure that what we're given is indeed newer than + // what we already have. + if (current != null && graphDescription.timestamp() < current.time()) { + return null; + } + + // Have the default topology construct self from the description data. + DefaultTopology newTopology = + new DefaultTopology(providerId, graphDescription); + + // Promote the new topology to current and return a ready-to-send event. + synchronized (this) { + current = newTopology; + return new TopologyEvent(TopologyEvent.Type.TOPOLOGY_CHANGED, + current, reasons); + } + } + + // Validates the specified topology and returns it as a default + private DefaultTopology defaultTopology(Topology topology) { + if (topology instanceof DefaultTopology) { + return (DefaultTopology) topology; + } + throw new IllegalArgumentException("Topology class " + topology.getClass() + + " not supported"); + } + +} |