| package net.onrc.onos.ofcontroller.networkgraph; |
| |
| import java.net.InetAddress; |
| |
| import net.floodlightcontroller.util.MACAddress; |
| |
| /** |
| * The northbound interface to the topology network graph. This interface |
| * is presented to the rest of ONOS. It is currently read-only, as we want |
| * only the discovery modules to be allowed to modify the topology. |
| */ |
| public interface NetworkGraph { |
| /** |
| * Get the switch for a given switch DPID. |
| * |
| * @param dpid the switch dpid. |
| * @return the switch if found, otherwise null. |
| */ |
| public Switch getSwitch(Long dpid); |
| |
| /** |
| * Get all switches in the network. |
| * |
| * @return all switches in the network. |
| */ |
| public Iterable<Switch> getSwitches(); |
| |
| /** |
| * Get the port on a switch. |
| * |
| * @param dpid the switch DPID. |
| * @param number the switch port number. |
| * @return the switch port if found, otherwise null. |
| */ |
| public Port getPort(Long dpid, Long number); |
| |
| /** |
| * Get the outgoing link for a switch and a port. |
| * |
| * @param dpid the switch DPID. |
| * @param number the switch port number. |
| * @return the outgoing link if found, otherwise null. |
| */ |
| public Link getLink(Long dpid, Long number); |
| |
| /** |
| * Get the outgoing link from a switch and a port to another switch and |
| * a port. |
| * |
| * @param srcDpid the source switch DPID. |
| * @param srcNumber the source switch port number. |
| * @param dstDpid the destination switch DPID. |
| * @param dstNumber the destination switch port number. |
| * @return the outgoing link if found, otherwise null. |
| */ |
| public Link getLink(Long srcDpid, Long srcNumber, Long dstDpid, |
| Long dstNumber); |
| |
| /** |
| * Get all links in the network. |
| * |
| * TODO: Not clear if this method is needed. Remove if not used. |
| * |
| * @return all links in the network. |
| */ |
| public Iterable<Link> getLinks(); |
| |
| /** |
| * Get the network devices for a given IP address. |
| * |
| * @param ipAddress the IP address to use. |
| * @return the network devices for the IP address. |
| */ |
| public Iterable<Device> getDevicesByIp(InetAddress ipAddress); |
| |
| /** |
| * Get the network device for a given MAC address. |
| * |
| * @param address the MAC address to use. |
| * @return the network device for the MAC address if found, otherwise null. |
| */ |
| public Device getDeviceByMac(MACAddress address); |
| |
| /** |
| * Acquire a read lock on the entire topology. The topology will not |
| * change while readers have the lock. Must be released using |
| * {@link releaseReadLock()}. This method will block until a read lock is |
| * available. |
| */ |
| public void acquireReadLock(); |
| |
| /** |
| * Release the read lock on the topology. |
| */ |
| public void releaseReadLock(); |
| } |