Jordan Halterman | 28183ee | 2017-10-17 17:29:10 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 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.cluster.impl; |
| 17 | |
| 18 | import java.util.Collection; |
| 19 | import java.util.Map; |
| 20 | import java.util.Objects; |
slowr | c4e87da | 2017-10-26 17:53:51 -0700 | [diff] [blame] | 21 | import java.util.Optional; |
Jordan Halterman | 28183ee | 2017-10-17 17:29:10 -0700 | [diff] [blame] | 22 | import java.util.Set; |
| 23 | import java.util.stream.Collectors; |
| 24 | |
| 25 | import com.google.common.collect.Maps; |
| 26 | import com.google.common.collect.Sets; |
| 27 | import org.apache.felix.scr.annotations.Activate; |
| 28 | import org.apache.felix.scr.annotations.Component; |
| 29 | import org.apache.felix.scr.annotations.Deactivate; |
| 30 | import org.apache.felix.scr.annotations.Reference; |
| 31 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 32 | import org.apache.felix.scr.annotations.Service; |
| 33 | import org.onosproject.cluster.ClusterService; |
| 34 | import org.onosproject.cluster.ControllerNode; |
| 35 | import org.onosproject.cluster.Member; |
| 36 | import org.onosproject.cluster.MembershipGroup; |
| 37 | import org.onosproject.cluster.MembershipService; |
| 38 | import org.onosproject.cluster.NodeId; |
| 39 | import org.onosproject.core.Version; |
| 40 | import org.slf4j.Logger; |
| 41 | |
| 42 | import static org.slf4j.LoggerFactory.getLogger; |
| 43 | |
| 44 | /** |
| 45 | * Cluster membership manager. |
| 46 | */ |
| 47 | @Component(immediate = true) |
| 48 | @Service |
| 49 | public class MembershipManager implements MembershipService { |
| 50 | |
| 51 | private final Logger log = getLogger(getClass()); |
| 52 | |
| 53 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 54 | protected ClusterService clusterService; |
| 55 | |
| 56 | private Member localMember; |
| 57 | |
| 58 | @Activate |
| 59 | public void activate() { |
slowr | c4e87da | 2017-10-26 17:53:51 -0700 | [diff] [blame] | 60 | NodeId localId = clusterService.getLocalNode().id(); |
Jordan Halterman | 28183ee | 2017-10-17 17:29:10 -0700 | [diff] [blame] | 61 | localMember = new Member( |
slowr | c4e87da | 2017-10-26 17:53:51 -0700 | [diff] [blame] | 62 | localId, |
| 63 | clusterService.getVersion(localId)); |
Jordan Halterman | 28183ee | 2017-10-17 17:29:10 -0700 | [diff] [blame] | 64 | log.info("Started"); |
| 65 | } |
| 66 | |
| 67 | @Deactivate |
| 68 | public void deactivate() { |
| 69 | log.info("Stopped"); |
| 70 | } |
| 71 | |
| 72 | private Member toMemberId(ControllerNode node) { |
| 73 | return new Member(node.id(), clusterService.getVersion(node.id())); |
| 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public Member getLocalMember() { |
| 78 | return localMember; |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public MembershipGroup getLocalGroup() { |
| 83 | return getGroup(getLocalMember().version()); |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public Set<Member> getMembers() { |
| 88 | return clusterService.getNodes().stream() |
slowr | c4e87da | 2017-10-26 17:53:51 -0700 | [diff] [blame] | 89 | .filter(node -> Optional.ofNullable(clusterService.getVersion(node.id())) |
| 90 | .filter(version -> version.equals(localMember.version())).isPresent()) |
Jordan Halterman | 28183ee | 2017-10-17 17:29:10 -0700 | [diff] [blame] | 91 | .map(this::toMemberId) |
| 92 | .collect(Collectors.toSet()); |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public Collection<MembershipGroup> getGroups() { |
| 97 | Map<Version, Set<Member>> groups = Maps.newHashMap(); |
| 98 | clusterService.getNodes().stream() |
| 99 | .map(this::toMemberId) |
| 100 | .forEach(member -> |
| 101 | groups.computeIfAbsent(member.version(), k -> Sets.newHashSet()).add(member)); |
| 102 | return Maps.transformEntries(groups, MembershipGroup::new).values(); |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public MembershipGroup getGroup(Version version) { |
| 107 | return new MembershipGroup(version, getMembers(version)); |
| 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public Set<Member> getMembers(Version version) { |
| 112 | return getMembers() |
| 113 | .stream() |
| 114 | .filter(m -> Objects.equals(m.version(), version)) |
| 115 | .collect(Collectors.toSet()); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public Member getMember(NodeId nodeId) { |
| 120 | ControllerNode node = clusterService.getNode(nodeId); |
| 121 | return node != null ? toMemberId(node) : null; |
| 122 | } |
| 123 | } |