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