| package org.onlab.onos.net.trivial.impl; |
| |
| 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.onos.event.AbstractListenerRegistry; |
| import org.onlab.onos.event.EventDeliveryService; |
| import org.onlab.onos.net.host.HostDescription; |
| import org.onlab.onos.net.host.HostEvent; |
| import org.onlab.onos.net.host.HostListener; |
| import org.onlab.onos.net.host.HostProvider; |
| import org.onlab.onos.net.host.HostProviderRegistry; |
| import org.onlab.onos.net.host.HostProviderService; |
| import org.onlab.onos.net.provider.AbstractProviderRegistry; |
| import org.onlab.onos.net.provider.AbstractProviderService; |
| import org.slf4j.Logger; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides basic implementation of the host SB & NB APIs. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class SimpleHostManager |
| extends AbstractProviderRegistry<HostProvider, HostProviderService> |
| implements HostProviderRegistry { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private final AbstractListenerRegistry<HostEvent, HostListener> |
| listenerRegistry = new AbstractListenerRegistry<>(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private EventDeliveryService eventDispatcher; |
| |
| |
| @Activate |
| public void activate() { |
| eventDispatcher.addSink(HostEvent.class, listenerRegistry); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| eventDispatcher.removeSink(HostEvent.class); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| protected HostProviderService createProviderService(HostProvider provider) { |
| return new InternalHostProviderService(provider); |
| } |
| |
| // Personalized host provider service issued to the supplied provider. |
| private class InternalHostProviderService extends AbstractProviderService<HostProvider> |
| implements HostProviderService { |
| |
| InternalHostProviderService(HostProvider provider) { |
| super(provider); |
| } |
| |
| @Override |
| public void hostDetected(HostDescription hostDescription) { |
| log.info("Host {} detected", hostDescription); |
| } |
| |
| @Override |
| public void hostVanished(HostDescription hostDescription) { |
| log.info("Host {} vanished", hostDescription); |
| } |
| } |
| } |