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 | 41f2ec0 | 2014-10-27 09:54:43 -0700 | [diff] [blame] | 22 | import org.onlab.onos.store.hz.AbsentInvalidatingLoadingCache; |
| 23 | import org.onlab.onos.store.hz.AbstractHazelcastStore; |
| 24 | import org.onlab.onos.store.hz.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 | |
Yuta HIGUCHI | ad4c218 | 2014-09-29 11:16:23 -0700 | [diff] [blame] | 52 | @Override |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 53 | @Activate |
| 54 | public void activate() { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 55 | super.activate(); |
| 56 | listenerId = theInstance.getCluster().addMembershipListener(listener); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 57 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 58 | rawNodes = theInstance.getMap("nodes"); |
| 59 | OptionalCacheLoader<NodeId, DefaultControllerNode> nodeLoader |
Yuta HIGUCHI | 672488d | 2014-10-07 09:23:43 -0700 | [diff] [blame] | 60 | = new OptionalCacheLoader<>(serializer, rawNodes); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 61 | nodes = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader)); |
Yuta HIGUCHI | fec9e19 | 2014-09-28 14:58:02 -0700 | [diff] [blame] | 62 | rawNodes.addEntryListener(new RemoteCacheEventHandler<>(nodes), true); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 63 | |
| 64 | loadClusterNodes(); |
| 65 | |
| 66 | log.info("Started"); |
| 67 | } |
| 68 | |
| 69 | // Loads the initial set of cluster nodes |
| 70 | private void loadClusterNodes() { |
| 71 | for (Member member : theInstance.getCluster().getMembers()) { |
tom | ee49c37 | 2014-09-26 15:14:50 -0700 | [diff] [blame] | 72 | addNode(node(member)); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 73 | } |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | @Deactivate |
| 77 | public void deactivate() { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 78 | theInstance.getCluster().removeMembershipListener(listenerId); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 79 | log.info("Stopped"); |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public ControllerNode getLocalNode() { |
| 84 | return node(theInstance.getCluster().getLocalMember()); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public Set<ControllerNode> getNodes() { |
| 89 | ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder(); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 90 | for (Optional<DefaultControllerNode> optional : nodes.asMap().values()) { |
| 91 | builder.add(optional.get()); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 92 | } |
| 93 | return builder.build(); |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | public ControllerNode getNode(NodeId nodeId) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 98 | return nodes.getUnchecked(nodeId).orNull(); |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | @Override |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 102 | public State getState(NodeId nodeId) { |
| 103 | State state = states.get(nodeId); |
| 104 | return state == null ? State.INACTIVE : state; |
| 105 | } |
| 106 | |
| 107 | @Override |
tom | ee49c37 | 2014-09-26 15:14:50 -0700 | [diff] [blame] | 108 | public ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort) { |
| 109 | return addNode(new DefaultControllerNode(nodeId, ip, tcpPort)); |
| 110 | } |
| 111 | |
| 112 | @Override |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 113 | public void removeNode(NodeId nodeId) { |
| 114 | synchronized (this) { |
| 115 | rawNodes.remove(serialize(nodeId)); |
| 116 | nodes.invalidate(nodeId); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | // Adds a new node based on the specified member |
tom | ee49c37 | 2014-09-26 15:14:50 -0700 | [diff] [blame] | 121 | private synchronized ControllerNode addNode(DefaultControllerNode node) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 122 | rawNodes.put(serialize(node.id()), serialize(node)); |
| 123 | nodes.put(node.id(), Optional.of(node)); |
| 124 | states.put(node.id(), State.ACTIVE); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 125 | return node; |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | // Creates a controller node descriptor from the Hazelcast member. |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 129 | private DefaultControllerNode node(Member member) { |
| 130 | IpPrefix ip = memberAddress(member); |
| 131 | return new DefaultControllerNode(new NodeId(ip.toString()), ip); |
| 132 | } |
| 133 | |
| 134 | private IpPrefix memberAddress(Member member) { |
| 135 | byte[] address = member.getSocketAddress().getAddress().getAddress(); |
| 136 | return IpPrefix.valueOf(address); |
| 137 | } |
| 138 | |
| 139 | // Interceptor for membership events. |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 140 | private class InternalMembershipListener implements MembershipListener { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 141 | @Override |
| 142 | public void memberAdded(MembershipEvent membershipEvent) { |
| 143 | log.info("Member {} added", membershipEvent.getMember()); |
tom | ee49c37 | 2014-09-26 15:14:50 -0700 | [diff] [blame] | 144 | ControllerNode node = addNode(node(membershipEvent.getMember())); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 145 | notifyDelegate(new ClusterEvent(INSTANCE_ACTIVATED, node)); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void memberRemoved(MembershipEvent membershipEvent) { |
| 150 | log.info("Member {} removed", membershipEvent.getMember()); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 151 | NodeId nodeId = new NodeId(memberAddress(membershipEvent.getMember()).toString()); |
| 152 | states.put(nodeId, State.INACTIVE); |
| 153 | notifyDelegate(new ClusterEvent(INSTANCE_DEACTIVATED, getNode(nodeId))); |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) { |
| 158 | log.info("Member {} attribute {} changed to {}", |
| 159 | memberAttributeEvent.getMember(), |
| 160 | memberAttributeEvent.getKey(), |
| 161 | memberAttributeEvent.getValue()); |
| 162 | } |
tom | 2d7c65f | 2014-09-23 01:09:35 -0700 | [diff] [blame] | 163 | } |
| 164 | } |