| /* |
| * Copyright 2017-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.cluster.impl; |
| |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.ControllerNode; |
| import org.onosproject.cluster.Member; |
| import org.onosproject.cluster.MembershipGroup; |
| import org.onosproject.cluster.MembershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.Version; |
| 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 java.util.Collection; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Cluster membership manager. |
| */ |
| @Component(immediate = true, service = MembershipService.class) |
| public class MembershipManager implements MembershipService { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected ClusterService clusterService; |
| |
| private Member localMember; |
| |
| @Activate |
| public void activate() { |
| NodeId localId = clusterService.getLocalNode().id(); |
| localMember = new Member( |
| localId, |
| clusterService.getVersion(localId)); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| private Member toMemberId(ControllerNode node) { |
| return new Member(node.id(), clusterService.getVersion(node.id())); |
| } |
| |
| @Override |
| public Member getLocalMember() { |
| return localMember; |
| } |
| |
| @Override |
| public MembershipGroup getLocalGroup() { |
| return getGroup(getLocalMember().version()); |
| } |
| |
| @Override |
| public Set<Member> getMembers() { |
| return clusterService.getNodes().stream() |
| .filter(node -> Optional.ofNullable(clusterService.getVersion(node.id())) |
| .filter(version -> version.equals(localMember.version())).isPresent()) |
| .map(this::toMemberId) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public Collection<MembershipGroup> getGroups() { |
| Map<Version, Set<Member>> groups = Maps.newHashMap(); |
| clusterService.getNodes().stream() |
| .map(this::toMemberId) |
| .forEach(member -> |
| groups.computeIfAbsent(member.version(), k -> Sets.newHashSet()).add(member)); |
| return Maps.transformEntries(groups, MembershipGroup::new).values(); |
| } |
| |
| @Override |
| public MembershipGroup getGroup(Version version) { |
| return new MembershipGroup(version, getMembers(version)); |
| } |
| |
| @Override |
| public Set<Member> getMembers(Version version) { |
| return getMembers() |
| .stream() |
| .filter(m -> Objects.equals(m.version(), version)) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public Member getMember(NodeId nodeId) { |
| ControllerNode node = clusterService.getNode(nodeId); |
| return node != null ? toMemberId(node) : null; |
| } |
| } |