| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * 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.onlab.onos.store.trivial.impl; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Multimap; |
| import com.google.common.collect.Sets; |
| 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.Annotations; |
| 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.HostLocation; |
| 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.InterfaceIpAddress; |
| import org.onlab.onos.net.host.PortAddresses; |
| import org.onlab.onos.net.provider.ProviderId; |
| import org.onlab.onos.store.AbstractStore; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.slf4j.Logger; |
| |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import static org.onlab.onos.net.host.HostEvent.Type.*; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| // TODO: multi-provider, annotation not supported. |
| /** |
| * 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, StoredHost> hosts = new ConcurrentHashMap<>(2000000, 0.75f, 16); |
| |
| // 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) { |
| StoredHost 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) { |
| StoredHost newhost = new StoredHost(providerId, hostId, |
| descr.hwAddress(), |
| descr.vlan(), |
| descr.location(), |
| ImmutableSet.copyOf(descr.ipAddress())); |
| 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, StoredHost host, |
| HostDescription descr) { |
| HostEvent event; |
| if (!host.location().equals(descr.location())) { |
| host.setLocation(descr.location()); |
| return new HostEvent(HOST_MOVED, host); |
| } |
| |
| if (host.ipAddresses().containsAll(descr.ipAddress())) { |
| return null; |
| } |
| |
| Set<IpAddress> addresses = new HashSet<>(host.ipAddresses()); |
| addresses.addAll(descr.ipAddress()); |
| StoredHost updated = new StoredHost(providerId, host.id(), |
| host.mac(), host.vlan(), |
| descr.location(), addresses); |
| event = new HostEvent(HOST_UPDATED, updated); |
| 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 ImmutableSet.<Host>copyOf(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(IpAddress 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<InterfaceIpAddress> union = |
| Sets.union(existing.ipAddresses(), |
| addresses.ipAddresses()).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<InterfaceIpAddress> difference = |
| Sets.difference(existing.ipAddresses(), |
| addresses.ipAddresses()).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; |
| } |
| |
| // Auxiliary extension to allow location to mutate. |
| private static final class StoredHost extends DefaultHost { |
| private HostLocation location; |
| |
| /** |
| * Creates an end-station host using the supplied information. |
| * |
| * @param providerId provider identity |
| * @param id host identifier |
| * @param mac host MAC address |
| * @param vlan host VLAN identifier |
| * @param location host location |
| * @param ips host IP addresses |
| * @param annotations optional key/value annotations |
| */ |
| public StoredHost(ProviderId providerId, HostId id, |
| MacAddress mac, VlanId vlan, HostLocation location, |
| Set<IpAddress> ips, Annotations... annotations) { |
| super(providerId, id, mac, vlan, location, ips, annotations); |
| this.location = location; |
| } |
| |
| void setLocation(HostLocation location) { |
| this.location = location; |
| } |
| |
| @Override |
| public HostLocation location() { |
| return location; |
| } |
| } |
| } |