tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame^] | 1 | package org.onlab.onos.store.cluster.impl; |
| 2 | |
| 3 | import com.google.common.collect.ImmutableSet; |
| 4 | import com.hazelcast.core.HazelcastInstance; |
| 5 | import com.hazelcast.core.Member; |
| 6 | import org.apache.felix.scr.annotations.Activate; |
| 7 | import org.apache.felix.scr.annotations.Component; |
| 8 | import org.apache.felix.scr.annotations.Deactivate; |
| 9 | import org.apache.felix.scr.annotations.Reference; |
| 10 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 11 | import org.apache.felix.scr.annotations.Service; |
| 12 | import org.onlab.onos.cluster.ClusterStore; |
| 13 | import org.onlab.onos.cluster.ControllerNode; |
| 14 | import org.onlab.onos.cluster.DefaultControllerNode; |
| 15 | import org.onlab.onos.cluster.NodeId; |
| 16 | import org.onlab.onos.store.StoreService; |
| 17 | import org.onlab.packet.IpPrefix; |
| 18 | import org.slf4j.Logger; |
| 19 | |
| 20 | import java.util.Set; |
| 21 | |
| 22 | import static org.slf4j.LoggerFactory.getLogger; |
| 23 | |
| 24 | /** |
| 25 | * Distributed implementation of the cluster nodes store. |
| 26 | */ |
| 27 | @Component(immediate = true) |
| 28 | @Service |
| 29 | public class DistributedClusterStore implements ClusterStore { |
| 30 | |
| 31 | private final Logger log = getLogger(getClass()); |
| 32 | |
| 33 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 34 | protected StoreService storeService; |
| 35 | |
| 36 | private HazelcastInstance theInstance; |
| 37 | |
| 38 | // FIXME: experimental implementation; enhance to assure persistence and |
| 39 | // visibility to nodes that are not currently in the cluster |
| 40 | |
| 41 | @Activate |
| 42 | public void activate() { |
| 43 | log.info("Started"); |
| 44 | theInstance = storeService.getHazelcastInstance(); |
| 45 | |
| 46 | } |
| 47 | |
| 48 | @Deactivate |
| 49 | public void deactivate() { |
| 50 | log.info("Stopped"); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public ControllerNode getLocalNode() { |
| 55 | return node(theInstance.getCluster().getLocalMember()); |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public Set<ControllerNode> getNodes() { |
| 60 | ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder(); |
| 61 | for (Member member : theInstance.getCluster().getMembers()) { |
| 62 | builder.add(node(member)); |
| 63 | } |
| 64 | return builder.build(); |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public ControllerNode getNode(NodeId nodeId) { |
| 69 | for (Member member : theInstance.getCluster().getMembers()) { |
| 70 | if (member.getUuid().equals(nodeId.toString())) { |
| 71 | return node(member); |
| 72 | } |
| 73 | } |
| 74 | return null; |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public ControllerNode.State getState(NodeId nodeId) { |
| 79 | return ControllerNode.State.ACTIVE; |
| 80 | } |
| 81 | |
| 82 | // Creates a controller node descriptor from the Hazelcast member. |
| 83 | private ControllerNode node(Member member) { |
| 84 | return new DefaultControllerNode(new NodeId(member.getUuid()), |
| 85 | IpPrefix.valueOf(member.getSocketAddress().getAddress().getAddress())); |
| 86 | } |
| 87 | } |