tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 1 | package org.onlab.onos.store.cluster.impl; |
| 2 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 3 | import com.google.common.base.Optional; |
| 4 | import com.google.common.cache.LoadingCache; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 5 | import com.google.common.collect.ImmutableSet; |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 6 | import com.hazelcast.core.IMap; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 7 | import com.hazelcast.core.Member; |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 8 | import com.hazelcast.core.MemberAttributeEvent; |
| 9 | import com.hazelcast.core.MembershipEvent; |
| 10 | import com.hazelcast.core.MembershipListener; |
Yuta HIGUCHI | b5df76d | 2014-09-27 20:54:00 -0700 | [diff] [blame^] | 11 | |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 12 | import org.apache.felix.scr.annotations.Activate; |
| 13 | import org.apache.felix.scr.annotations.Component; |
| 14 | import org.apache.felix.scr.annotations.Deactivate; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 15 | import org.apache.felix.scr.annotations.Service; |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 16 | import org.onlab.onos.cluster.ClusterEvent; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 17 | import org.onlab.onos.cluster.ClusterStore; |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 18 | import org.onlab.onos.cluster.ClusterStoreDelegate; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 19 | import org.onlab.onos.cluster.ControllerNode; |
| 20 | import org.onlab.onos.cluster.DefaultControllerNode; |
| 21 | import org.onlab.onos.cluster.NodeId; |
Yuta HIGUCHI | b5df76d | 2014-09-27 20:54:00 -0700 | [diff] [blame^] | 22 | import org.onlab.onos.store.common.AbsentInvalidatingLoadingCache; |
| 23 | import org.onlab.onos.store.common.AbstractHazelcastStore; |
| 24 | import org.onlab.onos.store.common.OptionalCacheLoader; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 25 | import org.onlab.packet.IpPrefix; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 26 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 27 | import java.util.Map; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 28 | import java.util.Set; |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 29 | import java.util.concurrent.ConcurrentHashMap; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 30 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 31 | import static com.google.common.cache.CacheBuilder.newBuilder; |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 32 | import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_ACTIVATED; |
| 33 | import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_DEACTIVATED; |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 34 | import static org.onlab.onos.cluster.ControllerNode.State; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 35 | |
| 36 | /** |
| 37 | * Distributed implementation of the cluster nodes store. |
| 38 | */ |
| 39 | @Component(immediate = true) |
| 40 | @Service |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 41 | public class DistributedClusterStore |
Yuta HIGUCHI | 2e96389 | 2014-09-27 13:00:39 -0700 | [diff] [blame] | 42 | extends AbstractHazelcastStore<ClusterEvent, ClusterStoreDelegate> |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 43 | implements ClusterStore { |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 44 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 45 | private IMap<byte[], byte[]> rawNodes; |
| 46 | private LoadingCache<NodeId, Optional<DefaultControllerNode>> nodes; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 47 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 48 | private String listenerId; |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 49 | private final MembershipListener listener = new InternalMembershipListener(); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 50 | private final Map<NodeId, State> states = new ConcurrentHashMap<>(); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 51 | |
| 52 | @Activate |
| 53 | public void activate() { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 54 | super.activate(); |
| 55 | listenerId = theInstance.getCluster().addMembershipListener(listener); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 56 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 57 | rawNodes = theInstance.getMap("nodes"); |
| 58 | OptionalCacheLoader<NodeId, DefaultControllerNode> nodeLoader |
| 59 | = new OptionalCacheLoader<>(storeService, rawNodes); |
| 60 | nodes = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader)); |
| 61 | rawNodes.addEntryListener(new RemoteEventHandler<>(nodes), true); |
| 62 | |
| 63 | loadClusterNodes(); |
| 64 | |
| 65 | log.info("Started"); |
| 66 | } |
| 67 | |
| 68 | // Loads the initial set of cluster nodes |
| 69 | private void loadClusterNodes() { |
| 70 | for (Member member : theInstance.getCluster().getMembers()) { |
| 71 | addMember(member); |
| 72 | } |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | @Deactivate |
| 76 | public void deactivate() { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 77 | theInstance.getCluster().removeMembershipListener(listenerId); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 78 | log.info("Stopped"); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public ControllerNode getLocalNode() { |
| 83 | return node(theInstance.getCluster().getLocalMember()); |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public Set<ControllerNode> getNodes() { |
| 88 | ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder(); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 89 | for (Optional<DefaultControllerNode> optional : nodes.asMap().values()) { |
| 90 | builder.add(optional.get()); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 91 | } |
| 92 | return builder.build(); |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public ControllerNode getNode(NodeId nodeId) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 97 | return nodes.getUnchecked(nodeId).orNull(); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | @Override |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 101 | public State getState(NodeId nodeId) { |
| 102 | State state = states.get(nodeId); |
| 103 | return state == null ? State.INACTIVE : state; |
| 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public void removeNode(NodeId nodeId) { |
| 108 | synchronized (this) { |
| 109 | rawNodes.remove(serialize(nodeId)); |
| 110 | nodes.invalidate(nodeId); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | // Adds a new node based on the specified member |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 115 | private synchronized ControllerNode addMember(Member member) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 116 | DefaultControllerNode node = node(member); |
| 117 | rawNodes.put(serialize(node.id()), serialize(node)); |
| 118 | nodes.put(node.id(), Optional.of(node)); |
| 119 | states.put(node.id(), State.ACTIVE); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 120 | return node; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | // Creates a controller node descriptor from the Hazelcast member. |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 124 | private DefaultControllerNode node(Member member) { |
| 125 | IpPrefix ip = memberAddress(member); |
| 126 | return new DefaultControllerNode(new NodeId(ip.toString()), ip); |
| 127 | } |
| 128 | |
| 129 | private IpPrefix memberAddress(Member member) { |
| 130 | byte[] address = member.getSocketAddress().getAddress().getAddress(); |
| 131 | return IpPrefix.valueOf(address); |
| 132 | } |
| 133 | |
| 134 | // Interceptor for membership events. |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 135 | private class InternalMembershipListener implements MembershipListener { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 136 | @Override |
| 137 | public void memberAdded(MembershipEvent membershipEvent) { |
| 138 | log.info("Member {} added", membershipEvent.getMember()); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 139 | ControllerNode node = addMember(membershipEvent.getMember()); |
| 140 | notifyDelegate(new ClusterEvent(INSTANCE_ACTIVATED, node)); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void memberRemoved(MembershipEvent membershipEvent) { |
| 145 | log.info("Member {} removed", membershipEvent.getMember()); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 146 | NodeId nodeId = new NodeId(memberAddress(membershipEvent.getMember()).toString()); |
| 147 | states.put(nodeId, State.INACTIVE); |
| 148 | notifyDelegate(new ClusterEvent(INSTANCE_DEACTIVATED, getNode(nodeId))); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) { |
| 153 | log.info("Member {} attribute {} changed to {}", |
| 154 | memberAttributeEvent.getMember(), |
| 155 | memberAttributeEvent.getKey(), |
| 156 | memberAttributeEvent.getValue()); |
| 157 | } |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 158 | } |
| 159 | } |