10. EventsThe NMR has a rich event API that can be used to receive all sort of notifications about what's happening in the NMR. EndpointListenerpublic interface EndpointListener { void endpointRegistered(InternalEndpoint endpoint); void endpointUnregistered(InternalEndpoint endpoint); } You can find an example endpoint listener here. ExchangeListenerpublic interface ExchangeListener { void exchangeSent(Exchange exchange); void exchangeDelivered(Exchange exchange); void exchangeFailed(Exchange exchange); } An example exchange listener can be found here. Registering listenersListeners can be registered in two ways, either directly on the NMR:
nmr.getListenerRegistry().register(listener, null);
or by registering your listener as an OSGi service. It can be done using Spring-DM using the following configuration (for an exchange listener): <bean id="myListener" class="..."> ... </bean> <!-- Exchange Listener --> <osgi:service ref="myListener"> <osgi:interfaces> <value>org.apache.servicemix.nmr.api.event.ExchangeListener</value> <value>org.apache.servicemix.nmr.api.event.Listener</value> </osgi:interfaces> </osgi:service> |
