| package org.onlab.onos.store.trivial.impl; |
| |
| import static org.onlab.onos.net.host.HostEvent.Type.HOST_ADDED; |
| import static org.onlab.onos.net.host.HostEvent.Type.HOST_MOVED; |
| import static org.onlab.onos.net.host.HostEvent.Type.HOST_REMOVED; |
| import static org.onlab.onos.net.host.HostEvent.Type.HOST_UPDATED; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| 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.Service; |
| import org.onlab.onos.net.ConnectPoint; |
| import org.onlab.onos.net.DefaultHost; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.Host; |
| import org.onlab.onos.net.HostId; |
| import org.onlab.onos.net.host.HostDescription; |
| import org.onlab.onos.net.host.HostEvent; |
| import org.onlab.onos.net.host.HostStore; |
| import org.onlab.onos.net.host.HostStoreDelegate; |
| import org.onlab.onos.net.host.PortAddresses; |
| import org.onlab.onos.net.provider.ProviderId; |
| import org.onlab.onos.store.AbstractStore; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.slf4j.Logger; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Multimap; |
| import com.google.common.collect.Sets; |
| |
| /** |
| * Manages inventory of end-station hosts using trivial in-memory |
| * implementation. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class SimpleHostStore |
| extends AbstractStore<HostEvent, HostStoreDelegate> |
| implements HostStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| // Host inventory |
| private final Map<HostId, Host> hosts = new ConcurrentHashMap<>(); |
| |
| // Hosts tracked by their location |
| private final Multimap<ConnectPoint, Host> locations = HashMultimap.create(); |
| |
| private final Map<ConnectPoint, PortAddresses> portAddresses = |
| new ConcurrentHashMap<>(); |
| |
| @Activate |
| public void activate() { |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public HostEvent createOrUpdateHost(ProviderId providerId, HostId hostId, |
| HostDescription hostDescription) { |
| Host host = hosts.get(hostId); |
| if (host == null) { |
| return createHost(providerId, hostId, hostDescription); |
| } |
| return updateHost(providerId, host, hostDescription); |
| } |
| |
| // creates a new host and sends HOST_ADDED |
| private HostEvent createHost(ProviderId providerId, HostId hostId, |
| HostDescription descr) { |
| DefaultHost newhost = new DefaultHost(providerId, hostId, |
| descr.hwAddress(), |
| descr.vlan(), |
| descr.location(), |
| descr.ipAddresses()); |
| synchronized (this) { |
| hosts.put(hostId, newhost); |
| locations.put(descr.location(), newhost); |
| } |
| return new HostEvent(HOST_ADDED, newhost); |
| } |
| |
| // checks for type of update to host, sends appropriate event |
| private HostEvent updateHost(ProviderId providerId, Host host, |
| HostDescription descr) { |
| DefaultHost updated; |
| HostEvent event; |
| if (!host.location().equals(descr.location())) { |
| updated = new DefaultHost(providerId, host.id(), |
| host.mac(), |
| host.vlan(), |
| descr.location(), |
| host.ipAddresses()); |
| event = new HostEvent(HOST_MOVED, updated); |
| |
| } else if (!(host.ipAddresses().equals(descr.ipAddresses()))) { |
| updated = new DefaultHost(providerId, host.id(), |
| host.mac(), |
| host.vlan(), |
| descr.location(), |
| descr.ipAddresses()); |
| event = new HostEvent(HOST_UPDATED, updated); |
| } else { |
| return null; |
| } |
| synchronized (this) { |
| hosts.put(host.id(), updated); |
| locations.remove(host.location(), host); |
| locations.put(updated.location(), updated); |
| } |
| return event; |
| } |
| |
| @Override |
| public HostEvent removeHost(HostId hostId) { |
| synchronized (this) { |
| Host host = hosts.remove(hostId); |
| if (host != null) { |
| locations.remove((host.location()), host); |
| return new HostEvent(HOST_REMOVED, host); |
| } |
| return null; |
| } |
| } |
| |
| @Override |
| public int getHostCount() { |
| return hosts.size(); |
| } |
| |
| @Override |
| public Iterable<Host> getHosts() { |
| return Collections.unmodifiableSet(new HashSet<>(hosts.values())); |
| } |
| |
| @Override |
| public Host getHost(HostId hostId) { |
| return hosts.get(hostId); |
| } |
| |
| @Override |
| public Set<Host> getHosts(VlanId vlanId) { |
| Set<Host> vlanset = new HashSet<>(); |
| for (Host h : hosts.values()) { |
| if (h.vlan().equals(vlanId)) { |
| vlanset.add(h); |
| } |
| } |
| return vlanset; |
| } |
| |
| @Override |
| public Set<Host> getHosts(MacAddress mac) { |
| Set<Host> macset = new HashSet<>(); |
| for (Host h : hosts.values()) { |
| if (h.mac().equals(mac)) { |
| macset.add(h); |
| } |
| } |
| return macset; |
| } |
| |
| @Override |
| public Set<Host> getHosts(IpPrefix ip) { |
| Set<Host> ipset = new HashSet<>(); |
| for (Host h : hosts.values()) { |
| if (h.ipAddresses().contains(ip)) { |
| ipset.add(h); |
| } |
| } |
| return ipset; |
| } |
| |
| @Override |
| public Set<Host> getConnectedHosts(ConnectPoint connectPoint) { |
| return ImmutableSet.copyOf(locations.get(connectPoint)); |
| } |
| |
| @Override |
| public Set<Host> getConnectedHosts(DeviceId deviceId) { |
| Set<Host> hostset = new HashSet<>(); |
| for (ConnectPoint p : locations.keySet()) { |
| if (p.deviceId().equals(deviceId)) { |
| hostset.addAll(locations.get(p)); |
| } |
| } |
| return hostset; |
| } |
| |
| @Override |
| public void updateAddressBindings(PortAddresses addresses) { |
| synchronized (portAddresses) { |
| PortAddresses existing = portAddresses.get(addresses.connectPoint()); |
| if (existing == null) { |
| portAddresses.put(addresses.connectPoint(), addresses); |
| } else { |
| Set<IpPrefix> union = Sets.union(existing.ips(), addresses.ips()) |
| .immutableCopy(); |
| |
| MacAddress newMac = (addresses.mac() == null) ? existing.mac() |
| : addresses.mac(); |
| |
| PortAddresses newAddresses = |
| new PortAddresses(addresses.connectPoint(), union, newMac); |
| |
| portAddresses.put(newAddresses.connectPoint(), newAddresses); |
| } |
| } |
| } |
| |
| @Override |
| public void removeAddressBindings(PortAddresses addresses) { |
| synchronized (portAddresses) { |
| PortAddresses existing = portAddresses.get(addresses.connectPoint()); |
| if (existing != null) { |
| Set<IpPrefix> difference = |
| Sets.difference(existing.ips(), addresses.ips()).immutableCopy(); |
| |
| // If they removed the existing mac, set the new mac to null. |
| // Otherwise, keep the existing mac. |
| MacAddress newMac = existing.mac(); |
| if (addresses.mac() != null && addresses.mac().equals(existing.mac())) { |
| newMac = null; |
| } |
| |
| PortAddresses newAddresses = |
| new PortAddresses(addresses.connectPoint(), difference, newMac); |
| |
| portAddresses.put(newAddresses.connectPoint(), newAddresses); |
| } |
| } |
| } |
| |
| @Override |
| public void clearAddressBindings(ConnectPoint connectPoint) { |
| synchronized (portAddresses) { |
| portAddresses.remove(connectPoint); |
| } |
| } |
| |
| @Override |
| public Set<PortAddresses> getAddressBindings() { |
| synchronized (portAddresses) { |
| return new HashSet<>(portAddresses.values()); |
| } |
| } |
| |
| @Override |
| public PortAddresses getAddressBindingsForPort(ConnectPoint connectPoint) { |
| PortAddresses addresses; |
| |
| synchronized (portAddresses) { |
| addresses = portAddresses.get(connectPoint); |
| } |
| |
| if (addresses == null) { |
| addresses = new PortAddresses(connectPoint, null, null); |
| } |
| |
| return addresses; |
| } |
| |
| } |