| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.store.atomix.cluster.impl; |
| |
| import com.google.common.collect.Maps; |
| import io.atomix.cluster.ClusterMembershipEvent; |
| import io.atomix.cluster.ClusterMembershipEventListener; |
| import io.atomix.cluster.ClusterMembershipService; |
| import io.atomix.cluster.Member; |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.cluster.ClusterEvent; |
| import org.onosproject.cluster.ClusterStore; |
| import org.onosproject.cluster.ClusterStoreDelegate; |
| import org.onosproject.cluster.ControllerNode; |
| import org.onosproject.cluster.DefaultControllerNode; |
| import org.onosproject.cluster.Node; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.Version; |
| import org.onosproject.core.VersionService; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.atomix.impl.AtomixManager; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.time.Instant; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Atomix cluster store. |
| */ |
| @Component(immediate = true, service = ClusterStore.class) |
| public class AtomixClusterStore extends AbstractStore<ClusterEvent, ClusterStoreDelegate> implements ClusterStore { |
| private static final String INSTANCE_ID_NULL = "Instance ID cannot be null"; |
| |
| private static final String STATE_KEY = "state"; |
| private static final String VERSION_KEY = "version"; |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected AtomixManager atomixManager; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected VersionService versionService; |
| |
| private ClusterMembershipService membershipService; |
| private ControllerNode localNode; |
| private final Map<NodeId, ControllerNode> nodes = Maps.newConcurrentMap(); |
| private final Map<NodeId, ControllerNode.State> states = Maps.newConcurrentMap(); |
| private final Map<NodeId, Version> versions = Maps.newConcurrentMap(); |
| private final Map<NodeId, Instant> updates = Maps.newConcurrentMap(); |
| private final ClusterMembershipEventListener membershipEventListener = this::changeMembership; |
| |
| @Activate |
| public void activate() { |
| membershipService = atomixManager.getAtomix().getMembershipService(); |
| membershipService.addListener(membershipEventListener); |
| membershipService.getMembers().forEach(member -> { |
| ControllerNode node = toControllerNode(member); |
| nodes.put(node.id(), node); |
| updateState(node, member); |
| updateVersion(node, member); |
| }); |
| membershipService.getLocalMember().properties().put(STATE_KEY, ControllerNode.State.ACTIVE.name()); |
| membershipService.getLocalMember().properties().put(VERSION_KEY, versionService.version().toString()); |
| localNode = toControllerNode(membershipService.getLocalMember()); |
| states.put(localNode.id(), ControllerNode.State.ACTIVE); |
| versions.put(localNode.id(), versionService.version()); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| membershipService.removeListener(membershipEventListener); |
| log.info("Stopped"); |
| } |
| |
| private void changeMembership(ClusterMembershipEvent event) { |
| ControllerNode node = nodes.get(NodeId.nodeId(event.subject().id().id())); |
| switch (event.type()) { |
| case MEMBER_ADDED: |
| case METADATA_CHANGED: |
| if (node == null) { |
| node = toControllerNode(event.subject()); |
| nodes.put(node.id(), node); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ADDED, node)); |
| } |
| updateVersion(node, event.subject()); |
| updateState(node, event.subject()); |
| break; |
| case MEMBER_REMOVED: |
| if (node != null |
| && states.put(node.id(), ControllerNode.State.INACTIVE) != ControllerNode.State.INACTIVE) { |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_DEACTIVATED, node)); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_REMOVED, node)); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void updateState(ControllerNode node, Member member) { |
| String state = member.properties().getProperty(STATE_KEY); |
| if (state == null || !state.equals(ControllerNode.State.READY.name())) { |
| if (states.put(node.id(), ControllerNode.State.ACTIVE) != ControllerNode.State.ACTIVE) { |
| log.info("Updated node {} state to {}", node.id(), ControllerNode.State.ACTIVE); |
| markUpdated(node.id()); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ACTIVATED, node)); |
| } |
| } else { |
| if (states.put(node.id(), ControllerNode.State.READY) != ControllerNode.State.READY) { |
| log.info("Updated node {} state to {}", node.id(), ControllerNode.State.READY); |
| markUpdated(node.id()); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_READY, node)); |
| } |
| } |
| } |
| |
| private void updateVersion(ControllerNode node, Member member) { |
| String versionString = member.properties().getProperty(VERSION_KEY); |
| if (versionString != null) { |
| Version version = Version.version(versionString); |
| if (!Objects.equals(versions.put(node.id(), version), version)) { |
| log.info("Updated node {} version to {}", node.id(), version); |
| } |
| } |
| } |
| |
| private void markUpdated(NodeId nodeId) { |
| updates.put(nodeId, Instant.now()); |
| } |
| |
| private ControllerNode toControllerNode(Member member) { |
| return new DefaultControllerNode( |
| NodeId.nodeId(member.id().id()), |
| member.address().host(), |
| member.address().port()); |
| } |
| |
| @Override |
| public ControllerNode getLocalNode() { |
| return localNode; |
| } |
| |
| @Override |
| public Set<Node> getStorageNodes() { |
| return membershipService.getMembers() |
| .stream() |
| .filter(member -> !Objects.equals(member.properties().getProperty("type"), "onos")) |
| .map(this::toControllerNode) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public Set<ControllerNode> getNodes() { |
| return membershipService.getMembers() |
| .stream() |
| .filter(member -> Objects.equals(member.properties().getProperty("type"), "onos")) |
| .map(this::toControllerNode) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public ControllerNode getNode(NodeId nodeId) { |
| Member member = membershipService.getMember(nodeId.id()); |
| return member != null ? toControllerNode(member) : null; |
| } |
| |
| @Override |
| public ControllerNode.State getState(NodeId nodeId) { |
| checkNotNull(nodeId, INSTANCE_ID_NULL); |
| return states.get(nodeId); |
| } |
| |
| @Override |
| public Version getVersion(NodeId nodeId) { |
| checkNotNull(nodeId, INSTANCE_ID_NULL); |
| return versions.get(nodeId); |
| } |
| |
| @Override |
| public Instant getLastUpdatedInstant(NodeId nodeId) { |
| checkNotNull(nodeId, INSTANCE_ID_NULL); |
| return updates.get(nodeId); |
| } |
| |
| @Override |
| public void markFullyStarted(boolean started) { |
| ControllerNode.State state = started ? ControllerNode.State.READY : ControllerNode.State.ACTIVE; |
| membershipService.getLocalMember().properties().setProperty(STATE_KEY, state.name()); |
| } |
| |
| @Override |
| public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) { |
| checkNotNull(nodeId, INSTANCE_ID_NULL); |
| ControllerNode node = new DefaultControllerNode(nodeId, ip, tcpPort); |
| nodes.put(node.id(), node); |
| ControllerNode.State state = node.equals(localNode) |
| ? ControllerNode.State.ACTIVE : ControllerNode.State.INACTIVE; |
| membershipService.getMember(node.id().id()).properties().setProperty(STATE_KEY, state.name()); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ADDED, node)); |
| return node; |
| } |
| |
| @Override |
| public void removeNode(NodeId nodeId) { |
| checkNotNull(nodeId, INSTANCE_ID_NULL); |
| ControllerNode node = nodes.remove(nodeId); |
| if (node != null) { |
| states.remove(nodeId); |
| notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_REMOVED, node)); |
| } |
| } |
| } |