| package org.onosproject.store.host.impl; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.net.DefaultAnnotations.merge; |
| import static org.onosproject.net.host.HostEvent.Type.HOST_ADDED; |
| import static org.onosproject.net.host.HostEvent.Type.HOST_REMOVED; |
| import static org.onosproject.net.host.HostEvent.Type.HOST_UPDATED; |
| import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.PUT; |
| import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.REMOVE; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.function.Predicate; |
| import java.util.stream.Collectors; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.net.Annotations; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.DefaultHost; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.HostId; |
| import org.onosproject.net.host.HostDescription; |
| import org.onosproject.net.host.HostEvent; |
| import org.onosproject.net.host.HostStore; |
| import org.onosproject.net.host.HostStoreDelegate; |
| import org.onosproject.net.host.PortAddresses; |
| import org.onosproject.net.host.HostEvent.Type; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.EventuallyConsistentMap; |
| import org.onosproject.store.service.EventuallyConsistentMapEvent; |
| import org.onosproject.store.service.EventuallyConsistentMapListener; |
| import org.onosproject.store.service.LogicalClockService; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Multimaps; |
| import com.google.common.collect.SetMultimap; |
| import com.google.common.collect.Sets; |
| |
| /** |
| * Manages the inventory of hosts using a {@code EventuallyConsistentMap}. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class ECHostStore |
| extends AbstractStore<HostEvent, HostStoreDelegate> |
| implements HostStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LogicalClockService clockService; |
| |
| // Hosts tracked by their location |
| private final SetMultimap<ConnectPoint, Host> locations = |
| Multimaps.synchronizedSetMultimap( |
| HashMultimap.<ConnectPoint, Host>create()); |
| |
| private final SetMultimap<ConnectPoint, PortAddresses> portAddresses = |
| Multimaps.synchronizedSetMultimap( |
| HashMultimap.<ConnectPoint, PortAddresses>create()); |
| |
| private EventuallyConsistentMap<HostId, DefaultHost> hosts; |
| |
| private EventuallyConsistentMapListener<HostId, DefaultHost> hostLocationTracker = |
| new HostLocationTracker(); |
| |
| @Activate |
| public void activate() { |
| KryoNamespace.Builder hostSerializer = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API); |
| |
| hosts = storageService.<HostId, DefaultHost>eventuallyConsistentMapBuilder() |
| .withName("onos-hosts") |
| .withSerializer(hostSerializer) |
| .withTimestampProvider((k, v) -> clockService.getTimestamp()) |
| .build(); |
| |
| hosts.addListener(hostLocationTracker); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| hosts.removeListener(hostLocationTracker); |
| hosts.destroy(); |
| locations.clear(); |
| portAddresses.clear(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public HostEvent createOrUpdateHost(ProviderId providerId, |
| HostId hostId, |
| HostDescription hostDescription) { |
| DefaultHost currentHost = hosts.get(hostId); |
| if (currentHost == null) { |
| DefaultHost newhost = new DefaultHost( |
| providerId, |
| hostId, |
| hostDescription.hwAddress(), |
| hostDescription.vlan(), |
| hostDescription.location(), |
| ImmutableSet.copyOf(hostDescription.ipAddress())); |
| hosts.put(hostId, newhost); |
| return new HostEvent(HOST_ADDED, newhost); |
| } |
| return updateHost(providerId, hostId, hostDescription, currentHost); |
| } |
| |
| @Override |
| public HostEvent removeHost(HostId hostId) { |
| Host host = hosts.remove(hostId); |
| return host != null ? new HostEvent(HOST_REMOVED, host) : null; |
| } |
| |
| @Override |
| public int getHostCount() { |
| return hosts.size(); |
| } |
| |
| @Override |
| public Iterable<Host> getHosts() { |
| return ImmutableSet.copyOf(hosts.values()); |
| } |
| |
| @Override |
| public Host getHost(HostId hostId) { |
| return hosts.get(hostId); |
| } |
| |
| @Override |
| public Set<Host> getHosts(VlanId vlanId) { |
| return filter(hosts.values(), host -> Objects.equals(host.vlan(), vlanId)); |
| } |
| |
| @Override |
| public Set<Host> getHosts(MacAddress mac) { |
| return filter(hosts.values(), host -> Objects.equals(host.mac(), mac)); |
| } |
| |
| @Override |
| public Set<Host> getHosts(IpAddress ip) { |
| return filter(hosts.values(), host -> host.ipAddresses().contains(ip)); |
| } |
| |
| @Override |
| public Set<Host> getConnectedHosts(ConnectPoint connectPoint) { |
| return ImmutableSet.copyOf(locations.get(connectPoint)); |
| } |
| |
| @Override |
| public Set<Host> getConnectedHosts(DeviceId deviceId) { |
| return locations.entries() |
| .stream() |
| .filter(entry -> entry.getKey().deviceId().equals(deviceId)) |
| .map(entry -> entry.getValue()) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public void updateAddressBindings(PortAddresses addresses) { |
| portAddresses.put(addresses.connectPoint(), addresses); |
| } |
| |
| @Override |
| public void removeAddressBindings(PortAddresses addresses) { |
| portAddresses.remove(addresses.connectPoint(), addresses); |
| } |
| |
| @Override |
| public void clearAddressBindings(ConnectPoint connectPoint) { |
| portAddresses.removeAll(connectPoint); |
| } |
| |
| @Override |
| public Set<PortAddresses> getAddressBindings() { |
| return ImmutableSet.copyOf(portAddresses.values()); |
| } |
| |
| @Override |
| public Set<PortAddresses> getAddressBindingsForPort(ConnectPoint connectPoint) { |
| synchronized (portAddresses) { |
| Set<PortAddresses> addresses = portAddresses.get(connectPoint); |
| return addresses == null ? Collections.emptySet() : ImmutableSet.copyOf(addresses); |
| } |
| } |
| |
| private Set<Host> filter(Collection<DefaultHost> collection, Predicate<DefaultHost> predicate) { |
| return collection.stream().filter(predicate).collect(Collectors.toSet()); |
| } |
| |
| // checks for type of update to host, sends appropriate event |
| private HostEvent updateHost(ProviderId providerId, |
| HostId hostId, |
| HostDescription descr, |
| DefaultHost currentHost) { |
| |
| final boolean hostMoved = !currentHost.location().equals(descr.location()); |
| if (hostMoved || |
| !currentHost.ipAddresses().containsAll(descr.ipAddress()) || |
| !descr.annotations().keys().isEmpty()) { |
| |
| Set<IpAddress> addresses = Sets.newHashSet(currentHost.ipAddresses()); |
| addresses.addAll(descr.ipAddress()); |
| Annotations annotations = merge((DefaultAnnotations) currentHost.annotations(), |
| descr.annotations()); |
| |
| DefaultHost updatedHost = new DefaultHost(providerId, currentHost.id(), |
| currentHost.mac(), currentHost.vlan(), |
| descr.location(), |
| addresses, |
| annotations); |
| |
| // TODO: We need a way to detect conflicting changes and abort update. |
| hosts.put(hostId, updatedHost); |
| locations.remove(currentHost.location(), currentHost); |
| locations.put(updatedHost.location(), updatedHost); |
| |
| HostEvent.Type eventType = hostMoved ? Type.HOST_MOVED : Type.HOST_UPDATED; |
| return new HostEvent(eventType, updatedHost); |
| } |
| return null; |
| } |
| |
| private class HostLocationTracker implements EventuallyConsistentMapListener<HostId, DefaultHost> { |
| @Override |
| public void event(EventuallyConsistentMapEvent<HostId, DefaultHost> event) { |
| DefaultHost host = checkNotNull(event.value()); |
| if (event.type() == PUT) { |
| boolean isNew = locations.put(host.location(), host); |
| notifyDelegate(new HostEvent(isNew ? HOST_ADDED : HOST_UPDATED, host)); |
| } else if (event.type() == REMOVE) { |
| if (locations.remove(host.location(), host)) { |
| notifyDelegate(new HostEvent(HOST_REMOVED, host)); |
| } |
| |
| } |
| } |
| } |
| } |