org.springframework.boot.actuate.health.HealthIndicator#org.springframework.boot.actuate.health.CompositeHealthContributor源码实例Demo

@Test
public void testParentConnectionFactoryInheritedIfOverridden() {
	context = new SpringApplicationBuilder(SimpleProcessor.class,
			ConnectionFactoryConfiguration.class).web(WebApplicationType.NONE)
					.run("--server.port=0");
	BinderFactory binderFactory = context.getBean(BinderFactory.class);
	Binder<?, ?, ?> binder = binderFactory.getBinder(null, MessageChannel.class);
	assertThat(binder).isInstanceOf(RabbitMessageChannelBinder.class);
	DirectFieldAccessor binderFieldAccessor = new DirectFieldAccessor(binder);
	ConnectionFactory binderConnectionFactory = (ConnectionFactory) binderFieldAccessor
			.getPropertyValue("connectionFactory");
	assertThat(binderConnectionFactory).isSameAs(MOCK_CONNECTION_FACTORY);
	ConnectionFactory connectionFactory = context.getBean(ConnectionFactory.class);
	assertThat(binderConnectionFactory).isSameAs(connectionFactory);
	CompositeHealthContributor bindersHealthIndicator = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);
	assertThat(bindersHealthIndicator).isNotNull();
	RabbitHealthIndicator indicator = (RabbitHealthIndicator) bindersHealthIndicator.getContributor("rabbit");
	assertThat(indicator).isNotNull();
	// mock connection factory behaves as if down
	assertThat(indicator.health().getStatus())
			.isEqualTo(Status.DOWN);
}
 

@Bean
CompositeHealthContributor grpcServices(GrpcServiceDiscoverer grpcServiceDiscoverer,
                                        HealthStatusManager healthStatusManager) {

    Map<String, HealthIndicator> healthIndicators = new LinkedHashMap<>();

    for (GrpcServiceDefinition grpcService : grpcServiceDiscoverer.findGrpcServices()) {
        String serviceName = grpcService.getDefinition().getServiceDescriptor().getName();
        healthIndicators.put(serviceName, new GrpcHealthIndicator(healthStatusManager, serviceName));
    }

    return CompositeHealthContributor.fromMap(healthIndicators);
}
 

private static void checkHealth(ConfigurableApplicationContext context,
		Status expected) throws InterruptedException {
	CompositeHealthContributor healthIndicator = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);
	KafkaStreamsBinderHealthIndicator kafkaStreamsBinderHealthIndicator = (KafkaStreamsBinderHealthIndicator) healthIndicator.getContributor("kstream");
	Health health = kafkaStreamsBinderHealthIndicator.health();
	while (waitFor(health.getStatus(), health.getDetails())) {
		TimeUnit.SECONDS.sleep(2);
		health = kafkaStreamsBinderHealthIndicator.health();
	}
	assertThat(health.getStatus()).isEqualTo(expected);
}
 

private HealthContributor getContributor(Map<String, HealthContributor> binderHealthContributors) {
	if (binderHealthContributors.isEmpty()) {
		return UNKNOWN;
	}
	if (binderHealthContributors.size() == 1) {
		return binderHealthContributors.values().iterator().next();
	}
	return CompositeHealthContributor.fromMap(binderHealthContributors);
}
 

@SuppressWarnings("rawtypes")
@Test
public void healthIndicatorsCheck() throws Exception {
	ConfigurableApplicationContext context = createBinderTestContext(
			new String[] { "binder1", "binder2" },
			"spring.cloud.stream.defaultBinder:binder2",
			"--spring.jmx.enabled=false");
	Binder binder1 = context.getBean(BinderFactory.class).getBinder("binder1",
			MessageChannel.class);
	assertThat(binder1).isInstanceOf(StubBinder1.class);
	Binder binder2 = context.getBean(BinderFactory.class).getBinder("binder2",
			MessageChannel.class);
	assertThat(binder2).isInstanceOf(StubBinder2.class);
	CompositeHealthContributor bindersHealthContributor = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);
	assertThat(bindersHealthContributor).isNotNull();
	assertThat(
			context.getBean("test1HealthIndicator1", HealthContributor.class))
					.isNotNull();
	assertThat(
			context.getBean("test2HealthIndicator2", HealthContributor.class))
					.isNotNull();

	assertThat(bindersHealthContributor.stream().map(NamedContributor::getName)).contains("binder1", "binder2");
	assertThat(bindersHealthContributor.getContributor("binder1")).extracting("health").extracting("status")
			.isEqualTo(Status.UP);
	assertThat(bindersHealthContributor.getContributor("binder2")).extracting("health").extracting("status")
			.isEqualTo(Status.UNKNOWN);

	context.close();
}
 

@SuppressWarnings("rawtypes")
@Test
public void healthIndicatorsCheckWhenDisabled() throws Exception {
	ConfigurableApplicationContext context = createBinderTestContext(
			new String[] { "binder1", "binder2" },
			"spring.cloud.stream.defaultBinder:binder2",
			"management.health.binders.enabled:false", "--spring.jmx.enabled=false");

	Binder binder1 = context.getBean(BinderFactory.class).getBinder("binder1",
			MessageChannel.class);
	assertThat(binder1).isInstanceOf(StubBinder1.class);
	Binder binder2 = context.getBean(BinderFactory.class).getBinder("binder2",
			MessageChannel.class);
	assertThat(binder2).isInstanceOf(StubBinder2.class);
	try {
		context.getBean("bindersHealthContributor", CompositeHealthContributor.class);
		fail("The 'bindersHealthContributor' bean should have not been defined");
	}
	catch (NoSuchBeanDefinitionException e) {
	}
	assertThat(
			context.getBean("test1HealthIndicator1", HealthContributor.class))
					.isNotNull();
	assertThat(
			context.getBean("test2HealthIndicator2", HealthContributor.class))
					.isNotNull();
	context.close();
}
 

@Test
public void testParentConnectionFactoryInheritedByDefault() throws Exception {
	context = new SpringApplicationBuilder(SimpleProcessor.class)
			.web(WebApplicationType.NONE).run("--server.port=0",
					"--spring.cloud.stream.rabbit.binder.connection-name-prefix=foo",
					"--spring.cloud.stream.rabbit.bindings.input.consumer.single-active-consumer=true");
	BinderFactory binderFactory = context.getBean(BinderFactory.class);
	Binder<?, ?, ?> binder = binderFactory.getBinder(null, MessageChannel.class);
	assertThat(binder).isInstanceOf(RabbitMessageChannelBinder.class);
	DirectFieldAccessor binderFieldAccessor = new DirectFieldAccessor(binder);
	CachingConnectionFactory binderConnectionFactory = (CachingConnectionFactory) binderFieldAccessor
			.getPropertyValue("connectionFactory");
	assertThat(binderConnectionFactory).isInstanceOf(CachingConnectionFactory.class);
	ConnectionFactory connectionFactory = context.getBean(ConnectionFactory.class);
	assertThat(binderConnectionFactory).isSameAs(connectionFactory);

	CompositeHealthContributor bindersHealthIndicator = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);

	assertThat(bindersHealthIndicator).isNotNull();

	RabbitHealthIndicator indicator = (RabbitHealthIndicator) bindersHealthIndicator.getContributor("rabbit");
	assertThat(indicator).isNotNull();
	assertThat(indicator.health().getStatus())
			.isEqualTo(Status.UP);

	ConnectionFactory publisherConnectionFactory = binderConnectionFactory
			.getPublisherConnectionFactory();
	assertThat(TestUtils.getPropertyValue(publisherConnectionFactory,
			"connection.target")).isNull();
	DirectChannel checkPf = new DirectChannel();
	Binding<MessageChannel> binding = ((RabbitMessageChannelBinder) binder)
			.bindProducer("checkPF", checkPf,
					new ExtendedProducerProperties<>(new RabbitProducerProperties()));
	checkPf.send(new GenericMessage<>("foo".getBytes()));
	binding.unbind();
	assertThat(TestUtils.getPropertyValue(publisherConnectionFactory,
			"connection.target")).isNotNull();

	CachingConnectionFactory cf = this.context
			.getBean(CachingConnectionFactory.class);
	ConnectionNameStrategy cns = TestUtils.getPropertyValue(cf,
			"connectionNameStrategy", ConnectionNameStrategy.class);
	assertThat(cns.obtainNewConnectionName(cf)).isEqualTo("foo#2");
	new RabbitAdmin(rabbitTestSupport.getResource()).deleteExchange("checkPF");
	checkCustomizedArgs();
	binderConnectionFactory.resetConnection();
	binderConnectionFactory.createConnection();
	checkCustomizedArgs();
}
 

@Test
@SuppressWarnings("unchecked")
public void testParentConnectionFactoryInheritedByDefaultAndRabbitSettingsPropagated() {
	context = new SpringApplicationBuilder(SimpleProcessor.class)
			.web(WebApplicationType.NONE).run("--server.port=0",
					"--spring.cloud.stream.bindings.source.group=someGroup",
					"--spring.cloud.stream.bindings.input.group=someGroup",
					"--spring.cloud.stream.rabbit.bindings.input.consumer.transacted=true",
					"--spring.cloud.stream.rabbit.bindings.output.producer.transacted=true");
	BinderFactory binderFactory = context.getBean(BinderFactory.class);
	Binder<?, ?, ?> binder = binderFactory.getBinder(null, MessageChannel.class);
	assertThat(binder).isInstanceOf(RabbitMessageChannelBinder.class);
	BindingService bindingService = context.getBean(BindingService.class);
	DirectFieldAccessor channelBindingServiceAccessor = new DirectFieldAccessor(
			bindingService);
	// @checkstyle:off
	Map<String, List<Binding<MessageChannel>>> consumerBindings = (Map<String, List<Binding<MessageChannel>>>) channelBindingServiceAccessor
			.getPropertyValue("consumerBindings");
	// @checkstyle:on
	Binding<MessageChannel> inputBinding = consumerBindings.get("input").get(0);
	assertThat(TestUtils.getPropertyValue(inputBinding, "lifecycle.beanName"))
			.isEqualTo("setByCustomizer:someGroup");
	SimpleMessageListenerContainer container = TestUtils.getPropertyValue(
			inputBinding, "lifecycle.messageListenerContainer",
			SimpleMessageListenerContainer.class);
	assertThat(TestUtils.getPropertyValue(container, "beanName"))
			.isEqualTo("setByCustomizerForQueue:input.someGroup,andGroup:someGroup");
	assertThat(TestUtils.getPropertyValue(container, "transactional", Boolean.class))
			.isTrue();
	Map<String, Binding<MessageChannel>> producerBindings = (Map<String, Binding<MessageChannel>>) TestUtils
			.getPropertyValue(bindingService, "producerBindings");
	Binding<MessageChannel> outputBinding = producerBindings.get("output");
	assertThat(TestUtils.getPropertyValue(outputBinding,
			"lifecycle.amqpTemplate.transactional", Boolean.class)).isTrue();
	assertThat(TestUtils.getPropertyValue(outputBinding, "lifecycle.beanName"))
			.isEqualTo("setByCustomizer:output");
	DirectFieldAccessor binderFieldAccessor = new DirectFieldAccessor(binder);
	ConnectionFactory binderConnectionFactory = (ConnectionFactory) binderFieldAccessor
			.getPropertyValue("connectionFactory");
	assertThat(binderConnectionFactory).isInstanceOf(CachingConnectionFactory.class);
	ConnectionFactory connectionFactory = context.getBean(ConnectionFactory.class);
	assertThat(binderConnectionFactory).isSameAs(connectionFactory);
	CompositeHealthContributor bindersHealthIndicator = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);

	assertThat(bindersHealthIndicator).isNotNull();

	RabbitHealthIndicator indicator = (RabbitHealthIndicator) bindersHealthIndicator.getContributor("rabbit");
	assertThat(indicator).isNotNull();
	assertThat(indicator.health().getStatus())
			.isEqualTo(Status.UP);

	CachingConnectionFactory cf = this.context
			.getBean(CachingConnectionFactory.class);
	ConnectionNameStrategy cns = TestUtils.getPropertyValue(cf,
			"connectionNameStrategy", ConnectionNameStrategy.class);
	assertThat(cns.obtainNewConnectionName(cf)).startsWith("rabbitConnectionFactory");
	assertThat(TestUtils.getPropertyValue(consumerBindings.get("source").get(0),
			"target.source.h.advised.targetSource.target.beanName"))
		.isEqualTo("setByCustomizer:someGroup");
}
 

@Test
public void testParentConnectionFactoryNotInheritedByCustomizedBindersAndProducerRetryBootProperties() {
	List<String> params = new ArrayList<>();
	params.add("--spring.cloud.stream.input.binder=custom");
	params.add("--spring.cloud.stream.output.binder=custom");
	params.add("--spring.cloud.stream.binders.custom.type=rabbit");
	params.add("--spring.cloud.stream.binders.custom.environment.foo=bar");
	params.add("--server.port=0");
	params.add("--spring.rabbitmq.template.retry.enabled=true");
	params.add("--spring.rabbitmq.template.retry.maxAttempts=2");
	params.add("--spring.rabbitmq.template.retry.initial-interval=1000");
	params.add("--spring.rabbitmq.template.retry.multiplier=1.1");
	params.add("--spring.rabbitmq.template.retry.max-interval=3000");
	context = new SpringApplicationBuilder(SimpleProcessor.class)
			.web(WebApplicationType.NONE)
			.run(params.toArray(new String[params.size()]));
	BinderFactory binderFactory = context.getBean(BinderFactory.class);
	// @checkstyle:off
	@SuppressWarnings("unchecked")
	Binder<MessageChannel, ExtendedConsumerProperties<RabbitConsumerProperties>, ExtendedProducerProperties<RabbitProducerProperties>> binder = (Binder<MessageChannel, ExtendedConsumerProperties<RabbitConsumerProperties>, ExtendedProducerProperties<RabbitProducerProperties>>) binderFactory
			.getBinder(null, MessageChannel.class);
	// @checkstyle:on
	assertThat(binder).isInstanceOf(RabbitMessageChannelBinder.class);
	DirectFieldAccessor binderFieldAccessor = new DirectFieldAccessor(binder);
	ConnectionFactory binderConnectionFactory = (ConnectionFactory) binderFieldAccessor
			.getPropertyValue("connectionFactory");
	ConnectionFactory connectionFactory = context.getBean(ConnectionFactory.class);
	assertThat(binderConnectionFactory).isNotSameAs(connectionFactory);
	CompositeHealthContributor bindersHealthIndicator = context
			.getBean("bindersHealthContributor", CompositeHealthContributor.class);
	assertThat(bindersHealthIndicator);

	RabbitHealthIndicator indicator = (RabbitHealthIndicator) bindersHealthIndicator.getContributor("custom");
	assertThat(indicator).isNotNull();
	assertThat(indicator.health().getStatus()).isEqualTo(Status.UP);
	String name = UUID.randomUUID().toString();
	Binding<MessageChannel> binding = binder.bindProducer(name, new DirectChannel(),
			new ExtendedProducerProperties<>(new RabbitProducerProperties()));
	RetryTemplate template = TestUtils.getPropertyValue(binding,
			"lifecycle.amqpTemplate.retryTemplate", RetryTemplate.class);
	assertThat(template).isNotNull();
	SimpleRetryPolicy retryPolicy = TestUtils.getPropertyValue(template,
			"retryPolicy", SimpleRetryPolicy.class);
	ExponentialBackOffPolicy backOff = TestUtils.getPropertyValue(template,
			"backOffPolicy", ExponentialBackOffPolicy.class);
	assertThat(retryPolicy.getMaxAttempts()).isEqualTo(2);
	assertThat(backOff.getInitialInterval()).isEqualTo(1000L);
	assertThat(backOff.getMultiplier()).isEqualTo(1.1);
	assertThat(backOff.getMaxInterval()).isEqualTo(3000L);
	binding.unbind();
	new RabbitAdmin(rabbitTestSupport.getResource()).deleteExchange(name);
	context.close();
}
 

private Health getHealth(String name) {
	HealthContributor delegate = ((CompositeHealthContributor) this.healthContributor)
			.getContributor(name);
	return ((HealthIndicator) delegate).health();
}