| package org.onlab.onos.store.cluster.impl; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.hazelcast.core.HazelcastInstance; |
| import com.hazelcast.core.Member; |
| 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.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.onos.cluster.ClusterStore; |
| import org.onlab.onos.cluster.ControllerNode; |
| import org.onlab.onos.cluster.DefaultControllerNode; |
| import org.onlab.onos.cluster.NodeId; |
| import org.onlab.onos.store.StoreService; |
| import org.onlab.packet.IpPrefix; |
| import org.slf4j.Logger; |
| |
| import java.util.Set; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Distributed implementation of the cluster nodes store. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DistributedClusterStore implements ClusterStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StoreService storeService; |
| |
| private HazelcastInstance theInstance; |
| |
| // FIXME: experimental implementation; enhance to assure persistence and |
| // visibility to nodes that are not currently in the cluster |
| |
| @Activate |
| public void activate() { |
| log.info("Started"); |
| theInstance = storeService.getHazelcastInstance(); |
| |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public ControllerNode getLocalNode() { |
| return node(theInstance.getCluster().getLocalMember()); |
| } |
| |
| @Override |
| public Set<ControllerNode> getNodes() { |
| ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder(); |
| for (Member member : theInstance.getCluster().getMembers()) { |
| builder.add(node(member)); |
| } |
| return builder.build(); |
| } |
| |
| @Override |
| public ControllerNode getNode(NodeId nodeId) { |
| for (Member member : theInstance.getCluster().getMembers()) { |
| if (member.getUuid().equals(nodeId.toString())) { |
| return node(member); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public ControllerNode.State getState(NodeId nodeId) { |
| return ControllerNode.State.ACTIVE; |
| } |
| |
| // Creates a controller node descriptor from the Hazelcast member. |
| private ControllerNode node(Member member) { |
| return new DefaultControllerNode(new NodeId(member.getUuid()), |
| IpPrefix.valueOf(member.getSocketAddress().getAddress().getAddress())); |
| } |
| } |