Examples with ServiceDiscoveryEvent io.scalecube.services.discovery.api.ServiceDiscoveryEvent used on opensource projects

Example 1 with ServiceDiscoveryEvent

use of io.scalecube.services.discovery.api.ServiceDiscoveryEvent in project scalecube by scalecube.

the class ServiceRegistryTest method test_listen_to_discovery_events.

@ParameterizedTest
@MethodSource("metadataCodecSource")
public void test_listen_to_discovery_events(MetadataCodec metadataCodec) {
    Sinks.Many<ServiceDiscoveryEvent> processor = Sinks.many().replay().all();
    List<Microservices> cluster = new CopyOnWriteArrayList<>();
    Microservices seed = Microservices.builder().discovery(defServiceDiscovery(metadataCodec)).transport(RSocketServiceTransport::new).services(new AnnotationServiceImpl()).startAwait();
    cluster.add(seed);
    seed.listenDiscovery().subscribe(processor::tryEmitNext, processor::tryEmitError, processor::tryEmitComplete);
    Address seedAddress = seed.discovery().address();
    StepVerifier.create(processor.asFlux().onBackpressureBuffer()).then(() -> {
        Microservices ms1 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
        cluster.add(ms1);
    }).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).then(() -> {
        Microservices ms2 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
        cluster.add(ms2);
    }).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).then(() -> cluster.remove(2).shutdown().block(TIMEOUT)).assertNext(event -> assertEquals(ENDPOINT_LEAVING, event.type())).assertNext(event -> assertEquals(ENDPOINT_REMOVED, event.type())).then(() -> cluster.remove(1).shutdown().block(TIMEOUT)).assertNext(event -> assertEquals(ENDPOINT_LEAVING, event.type())).assertNext(event -> assertEquals(ENDPOINT_REMOVED, event.type())).thenCancel().verify(TIMEOUT);
    StepVerifier.create(seed.call().api(AnnotationService.class).serviceDiscoveryEventTypes()).assertNext(type -> assertEquals(ENDPOINT_ADDED, type)).assertNext(type -> assertEquals(ENDPOINT_ADDED, type)).assertNext(type -> assertEquals(ENDPOINT_LEAVING, type)).assertNext(type -> assertEquals(ENDPOINT_REMOVED, type)).assertNext(type -> assertEquals(ENDPOINT_LEAVING, type)).assertNext(type -> assertEquals(ENDPOINT_REMOVED, type)).thenCancel().verify(TIMEOUT);
    Mono.whenDelayError(cluster.stream().map(Microservices::shutdown).toArray(Mono[]::new)).block(TIMEOUT);
}

Example 2 with ServiceDiscoveryEvent

use of io.scalecube.services.discovery.api.ServiceDiscoveryEvent in project scalecube by scalecube.

the class ScalecubeServiceDiscovery method onMembershipEvent.

private void onMembershipEvent(MembershipEvent membershipEvent) {
    LOGGER.debug("onMembershipEvent: {}", membershipEvent);
    ServiceDiscoveryEvent discoveryEvent = toServiceDiscoveryEvent(membershipEvent);
    if (discoveryEvent == null) {
        LOGGER.warn("DiscoveryEvent is null, cannot publish it (corresponding membershipEvent: {})", membershipEvent);
        return;
    }
    if (discoveryEvent != null) {
        LOGGER.debug("Publish discoveryEvent: {}", discoveryEvent);
        sink.emitNext(discoveryEvent, RETRY_NON_SERIALIZED);
    }
}

Example 3 with ServiceDiscoveryEvent

use of io.scalecube.services.discovery.api.ServiceDiscoveryEvent in project scalecube by scalecube.

the class ServiceRegistryTest method test_delayed_listen_to_discovery_events.

@ParameterizedTest
@MethodSource("metadataCodecSource")
public void test_delayed_listen_to_discovery_events(MetadataCodec metadataCodec) {
    Sinks.Many<ServiceDiscoveryEvent> processor = Sinks.many().replay().all();
    List<Microservices> cluster = new CopyOnWriteArrayList<>();
    Microservices seed = Microservices.builder().discovery(defServiceDiscovery(metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
    cluster.add(seed);
    seed.listenDiscovery().subscribe(processor::tryEmitNext, processor::tryEmitError, processor::tryEmitComplete);
    Address seedAddress = seed.discovery().address();
    StepVerifier.create(processor.asFlux().onBackpressureBuffer()).then(() -> {
        Microservices ms1 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl(), new AnnotationServiceImpl()).startAwait();
        cluster.add(ms1);
    }).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).then(() -> {
        Microservices ms2 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
        cluster.add(ms2);
    }).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).thenCancel().verify(TIMEOUT);
    StepVerifier.create(seed.call().api(AnnotationService.class).serviceDiscoveryEventTypes()).assertNext(type -> assertEquals(ENDPOINT_ADDED, type)).assertNext(type -> assertEquals(ENDPOINT_ADDED, type)).thenCancel().verify(TIMEOUT);
    Mono.whenDelayError(cluster.stream().map(Microservices::shutdown).toArray(Mono[]::new)).block(TIMEOUT);
}

Example 4 with ServiceDiscoveryEvent

use of io.scalecube.services.discovery.api.ServiceDiscoveryEvent in project scalecube by scalecube.

the class ServiceRegistryTest method test_added_removed_registration_events.

@ParameterizedTest
@MethodSource("metadataCodecSource")
public void test_added_removed_registration_events(MetadataCodec metadataCodec) {
    Sinks.Many<ServiceDiscoveryEvent> events = Sinks.many().replay().all();
    Microservices seed = Microservices.builder().discovery(defServiceDiscovery(metadataCodec)).transport(RSocketServiceTransport::new).startAwait();
    seed.listenDiscovery().subscribe(events::tryEmitNext, events::tryEmitError, events::tryEmitComplete);
    Address seedAddress = seed.discovery().address();
    Microservices ms1 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
    Microservices ms2 = Microservices.builder().discovery(defServiceDiscovery(seedAddress, metadataCodec)).transport(RSocketServiceTransport::new).services(new GreetingServiceImpl()).startAwait();
    StepVerifier.create(events.asFlux().onBackpressureBuffer()).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).assertNext(event -> assertEquals(ENDPOINT_ADDED, event.type())).then(() -> Mono.whenDelayError(ms1.shutdown(), ms2.shutdown()).block(TIMEOUT)).assertNext(event -> assertEquals(ENDPOINT_LEAVING, event.type())).assertNext(event -> assertEquals(ENDPOINT_LEAVING, event.type())).assertNext(event -> assertEquals(ENDPOINT_REMOVED, event.type())).assertNext(event -> assertEquals(ENDPOINT_REMOVED, event.type())).then(() -> seed.shutdown().block(TIMEOUT)).thenCancel().verify(TIMEOUT);
}