Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.store.cluster.impl; |
| 17 | |
| 18 | import com.google.common.base.Optional; |
| 19 | import com.google.common.cache.LoadingCache; |
| 20 | import com.google.common.collect.ImmutableSet; |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 21 | import com.google.common.collect.Maps; |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 22 | import com.hazelcast.core.IMap; |
| 23 | import com.hazelcast.core.Member; |
| 24 | import com.hazelcast.core.MemberAttributeEvent; |
| 25 | import com.hazelcast.core.MembershipEvent; |
| 26 | import com.hazelcast.core.MembershipListener; |
| 27 | |
| 28 | import org.apache.felix.scr.annotations.Activate; |
| 29 | import org.apache.felix.scr.annotations.Component; |
| 30 | import org.apache.felix.scr.annotations.Deactivate; |
| 31 | import org.apache.felix.scr.annotations.Service; |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 32 | import org.joda.time.DateTime; |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 33 | import org.onosproject.cluster.ClusterEvent; |
| 34 | import org.onosproject.cluster.ClusterStore; |
| 35 | import org.onosproject.cluster.ClusterStoreDelegate; |
| 36 | import org.onosproject.cluster.ControllerNode; |
| 37 | import org.onosproject.cluster.DefaultControllerNode; |
| 38 | import org.onosproject.cluster.NodeId; |
| 39 | import org.onosproject.store.hz.AbsentInvalidatingLoadingCache; |
| 40 | import org.onosproject.store.hz.AbstractHazelcastStore; |
| 41 | import org.onosproject.store.hz.OptionalCacheLoader; |
| 42 | import org.onlab.packet.IpAddress; |
| 43 | |
| 44 | import java.util.Map; |
| 45 | import java.util.Set; |
| 46 | import java.util.concurrent.ConcurrentHashMap; |
| 47 | |
| 48 | import static com.google.common.cache.CacheBuilder.newBuilder; |
| 49 | import static org.onosproject.cluster.ClusterEvent.Type.INSTANCE_ACTIVATED; |
| 50 | import static org.onosproject.cluster.ClusterEvent.Type.INSTANCE_DEACTIVATED; |
| 51 | import static org.onosproject.cluster.ControllerNode.State; |
| 52 | |
| 53 | /** |
| 54 | * Distributed, Hazelcast-based implementation of the cluster nodes store. |
| 55 | */ |
| 56 | @Component(immediate = true, enabled = false) |
| 57 | @Service |
| 58 | public class HazelcastClusterStore |
| 59 | extends AbstractHazelcastStore<ClusterEvent, ClusterStoreDelegate> |
| 60 | implements ClusterStore { |
| 61 | |
| 62 | private IMap<byte[], byte[]> rawNodes; |
| 63 | private LoadingCache<NodeId, Optional<DefaultControllerNode>> nodes; |
| 64 | |
| 65 | private String listenerId; |
| 66 | private final MembershipListener listener = new InternalMembershipListener(); |
| 67 | private final Map<NodeId, State> states = new ConcurrentHashMap<>(); |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 68 | private final Map<NodeId, DateTime> lastUpdatedTimes = Maps.newConcurrentMap(); |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 69 | |
| 70 | private String nodesListenerId; |
| 71 | |
| 72 | @Override |
| 73 | @Activate |
| 74 | public void activate() { |
| 75 | super.activate(); |
| 76 | listenerId = theInstance.getCluster().addMembershipListener(listener); |
| 77 | |
| 78 | rawNodes = theInstance.getMap("nodes"); |
| 79 | OptionalCacheLoader<NodeId, DefaultControllerNode> nodeLoader |
| 80 | = new OptionalCacheLoader<>(serializer, rawNodes); |
| 81 | nodes = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader)); |
| 82 | nodesListenerId = rawNodes.addEntryListener(new RemoteCacheEventHandler<>(nodes), true); |
| 83 | |
| 84 | loadClusterNodes(); |
| 85 | |
| 86 | log.info("Started"); |
| 87 | } |
| 88 | |
| 89 | // Loads the initial set of cluster nodes |
| 90 | private void loadClusterNodes() { |
| 91 | for (Member member : theInstance.getCluster().getMembers()) { |
| 92 | addNode(node(member)); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | @Deactivate |
| 97 | public void deactivate() { |
| 98 | rawNodes.removeEntryListener(nodesListenerId); |
| 99 | theInstance.getCluster().removeMembershipListener(listenerId); |
| 100 | log.info("Stopped"); |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | public ControllerNode getLocalNode() { |
| 105 | return node(theInstance.getCluster().getLocalMember()); |
| 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public Set<ControllerNode> getNodes() { |
| 110 | ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder(); |
| 111 | for (Optional<DefaultControllerNode> optional : nodes.asMap().values()) { |
| 112 | builder.add(optional.get()); |
| 113 | } |
| 114 | return builder.build(); |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public ControllerNode getNode(NodeId nodeId) { |
| 119 | return nodes.getUnchecked(nodeId).orNull(); |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public State getState(NodeId nodeId) { |
| 124 | State state = states.get(nodeId); |
| 125 | return state == null ? State.INACTIVE : state; |
| 126 | } |
| 127 | |
| 128 | @Override |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 129 | public DateTime getLastUpdated(NodeId nodeId) { |
| 130 | return lastUpdatedTimes.get(nodeId); |
| 131 | } |
| 132 | |
| 133 | @Override |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 134 | public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) { |
| 135 | return addNode(new DefaultControllerNode(nodeId, ip, tcpPort)); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public void removeNode(NodeId nodeId) { |
| 140 | synchronized (this) { |
| 141 | rawNodes.remove(serialize(nodeId)); |
| 142 | nodes.invalidate(nodeId); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | // Adds a new node based on the specified member |
| 147 | private synchronized ControllerNode addNode(DefaultControllerNode node) { |
| 148 | rawNodes.put(serialize(node.id()), serialize(node)); |
| 149 | nodes.put(node.id(), Optional.of(node)); |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 150 | updateState(node.id(), State.ACTIVE); |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 151 | return node; |
| 152 | } |
| 153 | |
| 154 | // Creates a controller node descriptor from the Hazelcast member. |
| 155 | private DefaultControllerNode node(Member member) { |
| 156 | IpAddress ip = memberAddress(member); |
| 157 | return new DefaultControllerNode(new NodeId(ip.toString()), ip); |
| 158 | } |
| 159 | |
| 160 | private IpAddress memberAddress(Member member) { |
| 161 | return IpAddress.valueOf(member.getSocketAddress().getAddress()); |
| 162 | } |
| 163 | |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 164 | private void updateState(NodeId nodeId, State newState) { |
| 165 | updateState(nodeId, newState); |
| 166 | lastUpdatedTimes.put(nodeId, DateTime.now()); |
| 167 | } |
| 168 | |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 169 | // Interceptor for membership events. |
| 170 | private class InternalMembershipListener implements MembershipListener { |
| 171 | @Override |
| 172 | public void memberAdded(MembershipEvent membershipEvent) { |
| 173 | log.info("Member {} added", membershipEvent.getMember()); |
| 174 | ControllerNode node = addNode(node(membershipEvent.getMember())); |
| 175 | notifyDelegate(new ClusterEvent(INSTANCE_ACTIVATED, node)); |
| 176 | } |
| 177 | |
| 178 | @Override |
| 179 | public void memberRemoved(MembershipEvent membershipEvent) { |
| 180 | log.info("Member {} removed", membershipEvent.getMember()); |
| 181 | NodeId nodeId = new NodeId(memberAddress(membershipEvent.getMember()).toString()); |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 182 | updateState(nodeId, State.INACTIVE); |
Ayaka Koshibe | dd91b84 | 2015-03-02 14:48:47 -0800 | [diff] [blame] | 183 | notifyDelegate(new ClusterEvent(INSTANCE_DEACTIVATED, getNode(nodeId))); |
| 184 | } |
| 185 | |
| 186 | @Override |
| 187 | public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) { |
| 188 | log.info("Member {} attribute {} changed to {}", |
| 189 | memberAttributeEvent.getMember(), |
| 190 | memberAttributeEvent.getKey(), |
| 191 | memberAttributeEvent.getValue()); |
| 192 | } |
| 193 | } |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame^] | 194 | } |