Thomas Vachuska | 58de416 | 2015-09-10 16:15:33 -0700 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2015 Open Networking Laboratory
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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CNlucius | b786e61 | 2015-08-20 14:36:29 +0800 | [diff] [blame] | 16 | package org.onosproject.store.host.impl;
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| 17 |
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| 18 | import static com.google.common.base.Preconditions.checkNotNull;
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| 19 | import static org.onosproject.net.DefaultAnnotations.merge;
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| 20 | import static org.onosproject.net.host.HostEvent.Type.HOST_ADDED;
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| 21 | import static org.onosproject.net.host.HostEvent.Type.HOST_REMOVED;
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| 22 | import static org.onosproject.net.host.HostEvent.Type.HOST_UPDATED;
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| 23 | import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.PUT;
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| 24 | import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.REMOVE;
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| 25 | import static org.slf4j.LoggerFactory.getLogger;
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| 26 |
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| 27 | import java.util.Collection;
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| 28 | import java.util.Collections;
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| 29 | import java.util.Objects;
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| 30 | import java.util.Set;
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| 31 | import java.util.function.Predicate;
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| 32 | import java.util.stream.Collectors;
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| 33 |
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| 34 | import org.apache.felix.scr.annotations.Activate;
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| 35 | import org.apache.felix.scr.annotations.Component;
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| 36 | import org.apache.felix.scr.annotations.Deactivate;
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| 37 | import org.apache.felix.scr.annotations.Reference;
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| 38 | import org.apache.felix.scr.annotations.ReferenceCardinality;
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| 39 | import org.apache.felix.scr.annotations.Service;
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| 40 | import org.onlab.packet.IpAddress;
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| 41 | import org.onlab.packet.MacAddress;
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| 42 | import org.onlab.packet.VlanId;
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| 43 | import org.onlab.util.KryoNamespace;
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| 44 | import org.onosproject.net.Annotations;
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| 45 | import org.onosproject.net.ConnectPoint;
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| 46 | import org.onosproject.net.DefaultAnnotations;
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| 47 | import org.onosproject.net.DefaultHost;
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| 48 | import org.onosproject.net.DeviceId;
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| 49 | import org.onosproject.net.Host;
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| 50 | import org.onosproject.net.HostId;
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| 51 | import org.onosproject.net.host.HostDescription;
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| 52 | import org.onosproject.net.host.HostEvent;
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| 53 | import org.onosproject.net.host.HostStore;
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| 54 | import org.onosproject.net.host.HostStoreDelegate;
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| 55 | import org.onosproject.net.host.PortAddresses;
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| 56 | import org.onosproject.net.host.HostEvent.Type;
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| 57 | import org.onosproject.net.provider.ProviderId;
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| 58 | import org.onosproject.store.AbstractStore;
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| 59 | import org.onosproject.store.serializers.KryoNamespaces;
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| 60 | import org.onosproject.store.service.EventuallyConsistentMap;
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| 61 | import org.onosproject.store.service.EventuallyConsistentMapEvent;
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| 62 | import org.onosproject.store.service.EventuallyConsistentMapListener;
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| 63 | import org.onosproject.store.service.LogicalClockService;
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| 64 | import org.onosproject.store.service.StorageService;
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| 65 | import org.slf4j.Logger;
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| 66 |
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| 67 | import com.google.common.collect.HashMultimap;
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| 68 | import com.google.common.collect.ImmutableMultimap;
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| 69 | import com.google.common.collect.ImmutableSet;
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| 70 | import com.google.common.collect.Multimaps;
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| 71 | import com.google.common.collect.SetMultimap;
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| 72 | import com.google.common.collect.Sets;
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| 73 |
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| 74 | /**
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| 75 | * Manages the inventory of hosts using a {@code EventuallyConsistentMap}.
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| 76 | */
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| 77 | @Component(immediate = true)
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| 78 | @Service
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| 79 | public class ECHostStore
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| 80 | extends AbstractStore<HostEvent, HostStoreDelegate>
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| 81 | implements HostStore {
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| 82 |
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| 83 | private final Logger log = getLogger(getClass());
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| 84 |
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| 85 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
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| 86 | protected StorageService storageService;
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| 87 |
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| 88 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
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| 89 | protected LogicalClockService clockService;
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| 90 |
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| 91 | // Hosts tracked by their location
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| 92 | private final SetMultimap<ConnectPoint, Host> locations =
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| 93 | Multimaps.synchronizedSetMultimap(
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| 94 | HashMultimap.<ConnectPoint, Host>create());
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| 95 |
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| 96 | private final SetMultimap<ConnectPoint, PortAddresses> portAddresses =
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| 97 | Multimaps.synchronizedSetMultimap(
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| 98 | HashMultimap.<ConnectPoint, PortAddresses>create());
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| 99 |
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| 100 | private EventuallyConsistentMap<HostId, DefaultHost> hosts;
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| 101 |
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| 102 | private EventuallyConsistentMapListener<HostId, DefaultHost> hostLocationTracker =
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| 103 | new HostLocationTracker();
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| 104 |
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| 105 | @Activate
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| 106 | public void activate() {
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| 107 | KryoNamespace.Builder hostSerializer = KryoNamespace.newBuilder()
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| 108 | .register(KryoNamespaces.API);
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| 109 |
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| 110 | hosts = storageService.<HostId, DefaultHost>eventuallyConsistentMapBuilder()
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| 111 | .withName("onos-hosts")
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| 112 | .withSerializer(hostSerializer)
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| 113 | .withTimestampProvider((k, v) -> clockService.getTimestamp())
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| 114 | .build();
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| 115 |
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| 116 | hosts.addListener(hostLocationTracker);
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| 117 |
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| 118 | log.info("Started");
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| 119 | }
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| 120 |
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| 121 | @Deactivate
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| 122 | public void deactivate() {
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| 123 | hosts.removeListener(hostLocationTracker);
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| 124 | hosts.destroy();
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| 125 | locations.clear();
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| 126 | portAddresses.clear();
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| 127 |
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| 128 | log.info("Stopped");
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| 129 | }
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| 130 |
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| 131 | @Override
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| 132 | public HostEvent createOrUpdateHost(ProviderId providerId,
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| 133 | HostId hostId,
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| 134 | HostDescription hostDescription) {
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| 135 | DefaultHost currentHost = hosts.get(hostId);
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| 136 | if (currentHost == null) {
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| 137 | DefaultHost newhost = new DefaultHost(
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| 138 | providerId,
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| 139 | hostId,
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| 140 | hostDescription.hwAddress(),
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| 141 | hostDescription.vlan(),
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| 142 | hostDescription.location(),
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| 143 | ImmutableSet.copyOf(hostDescription.ipAddress()),
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| 144 | hostDescription.annotations());
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| 145 | hosts.put(hostId, newhost);
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| 146 | return new HostEvent(HOST_ADDED, newhost);
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| 147 | }
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| 148 | return updateHost(providerId, hostId, hostDescription, currentHost);
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| 149 | }
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| 150 |
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| 151 | @Override
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| 152 | public HostEvent removeHost(HostId hostId) {
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| 153 | Host host = hosts.remove(hostId);
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| 154 | return host != null ? new HostEvent(HOST_REMOVED, host) : null;
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| 155 | }
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| 156 |
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| 157 | @Override
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| 158 | public int getHostCount() {
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| 159 | return hosts.size();
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| 160 | }
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| 161 |
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| 162 | @Override
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| 163 | public Iterable<Host> getHosts() {
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| 164 | return ImmutableSet.copyOf(hosts.values());
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| 165 | }
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| 166 |
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| 167 | @Override
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| 168 | public Host getHost(HostId hostId) {
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| 169 | return hosts.get(hostId);
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| 170 | }
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| 171 |
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| 172 | @Override
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| 173 | public Set<Host> getHosts(VlanId vlanId) {
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| 174 | return filter(hosts.values(), host -> Objects.equals(host.vlan(), vlanId));
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| 175 | }
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| 176 |
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| 177 | @Override
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| 178 | public Set<Host> getHosts(MacAddress mac) {
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| 179 | return filter(hosts.values(), host -> Objects.equals(host.mac(), mac));
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| 180 | }
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| 181 |
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| 182 | @Override
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| 183 | public Set<Host> getHosts(IpAddress ip) {
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| 184 | return filter(hosts.values(), host -> host.ipAddresses().contains(ip));
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| 185 | }
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| 186 |
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| 187 | @Override
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| 188 | public Set<Host> getConnectedHosts(ConnectPoint connectPoint) {
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| 189 | return ImmutableSet.copyOf(locations.get(connectPoint));
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| 190 | }
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| 191 |
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| 192 | @Override
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| 193 | public Set<Host> getConnectedHosts(DeviceId deviceId) {
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| 194 | return ImmutableMultimap.copyOf(locations)
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| 195 | .entries()
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| 196 | .stream()
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| 197 | .filter(entry -> entry.getKey().deviceId().equals(deviceId))
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| 198 | .map(entry -> entry.getValue())
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| 199 | .collect(Collectors.toSet());
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| 200 | }
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| 201 |
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| 202 | @Override
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| 203 | public void updateAddressBindings(PortAddresses addresses) {
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| 204 | portAddresses.put(addresses.connectPoint(), addresses);
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| 205 | }
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| 206 |
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| 207 | @Override
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| 208 | public void removeAddressBindings(PortAddresses addresses) {
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| 209 | portAddresses.remove(addresses.connectPoint(), addresses);
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| 210 | }
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| 211 |
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| 212 | @Override
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| 213 | public void clearAddressBindings(ConnectPoint connectPoint) {
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| 214 | portAddresses.removeAll(connectPoint);
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| 215 | }
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| 216 |
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| 217 | @Override
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| 218 | public Set<PortAddresses> getAddressBindings() {
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| 219 | return ImmutableSet.copyOf(portAddresses.values());
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| 220 | }
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| 221 |
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| 222 | @Override
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| 223 | public Set<PortAddresses> getAddressBindingsForPort(ConnectPoint connectPoint) {
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| 224 | synchronized (portAddresses) {
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| 225 | Set<PortAddresses> addresses = portAddresses.get(connectPoint);
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| 226 | return addresses == null ? Collections.emptySet() : ImmutableSet.copyOf(addresses);
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| 227 | }
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| 228 | }
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| 229 |
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| 230 | private Set<Host> filter(Collection<DefaultHost> collection, Predicate<DefaultHost> predicate) {
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| 231 | return collection.stream().filter(predicate).collect(Collectors.toSet());
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| 232 | }
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| 233 |
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| 234 | // checks for type of update to host, sends appropriate event
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| 235 | private HostEvent updateHost(ProviderId providerId,
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| 236 | HostId hostId,
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| 237 | HostDescription descr,
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| 238 | DefaultHost currentHost) {
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| 239 |
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| 240 | final boolean hostMoved = !currentHost.location().equals(descr.location());
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| 241 | if (hostMoved ||
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| 242 | !currentHost.ipAddresses().containsAll(descr.ipAddress()) ||
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| 243 | !descr.annotations().keys().isEmpty()) {
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| 244 |
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| 245 | Set<IpAddress> addresses = Sets.newHashSet(currentHost.ipAddresses());
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| 246 | addresses.addAll(descr.ipAddress());
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| 247 | Annotations annotations = merge((DefaultAnnotations) currentHost.annotations(),
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| 248 | descr.annotations());
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| 249 |
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| 250 | DefaultHost updatedHost = new DefaultHost(providerId, currentHost.id(),
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| 251 | currentHost.mac(), currentHost.vlan(),
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| 252 | descr.location(),
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| 253 | addresses,
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| 254 | annotations);
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| 255 |
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| 256 | // TODO: We need a way to detect conflicting changes and abort update.
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| 257 | hosts.put(hostId, updatedHost);
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| 258 | locations.remove(currentHost.location(), currentHost);
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| 259 | locations.put(updatedHost.location(), updatedHost);
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| 260 |
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| 261 | HostEvent.Type eventType = hostMoved ? Type.HOST_MOVED : Type.HOST_UPDATED;
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| 262 | return new HostEvent(eventType, updatedHost);
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| 263 | }
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| 264 | return null;
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| 265 | }
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| 266 |
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| 267 | private class HostLocationTracker implements EventuallyConsistentMapListener<HostId, DefaultHost> {
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| 268 | @Override
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| 269 | public void event(EventuallyConsistentMapEvent<HostId, DefaultHost> event) {
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| 270 | DefaultHost host = checkNotNull(event.value());
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| 271 | if (event.type() == PUT) {
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| 272 | boolean isNew = locations.put(host.location(), host);
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| 273 | notifyDelegate(new HostEvent(isNew ? HOST_ADDED : HOST_UPDATED, host));
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| 274 | } else if (event.type() == REMOVE) {
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| 275 | if (locations.remove(host.location(), host)) {
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| 276 | notifyDelegate(new HostEvent(HOST_REMOVED, host));
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| 277 | }
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| 278 |
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| 279 | }
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| 280 | }
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| 281 | }
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| 282 | }
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