Package io.micronaut.nats.intercept

Class NatsConsumerAdvice

java.lang.Object

io.micronaut.nats.intercept.NatsConsumerAdvice

All Implemented Interfaces:

io.micronaut.context.processor.AnnotationProcessor<Subject,io.micronaut.inject.ExecutableMethod<?,?>>, io.micronaut.context.processor.ExecutableMethodProcessor<Subject>, ConsumerRegistry, AutoCloseable

@Singleton
@Bean(preDestroy="close")
public class NatsConsumerAdvice
extends Object
implements io.micronaut.context.processor.ExecutableMethodProcessor<Subject>, AutoCloseable, ConsumerRegistry

An ExecutableMethodProcessor that will process all beans annotated with NatsListener. It creates and subscribes the relevant methods as consumers to Nats subjects.

Since:

1.0.0

Author:

Joachim Grimm

Constructor Summary

Constructors

Constructor	Description
NatsConsumerAdvice(io.micronaut.context.BeanContext beanContext, NatsBinderRegistry binderRegistry, NatsMessageSerDesRegistry serDesRegistry, NatsListenerExceptionHandler exceptionHandler, io.micronaut.runtime.ApplicationConfiguration applicationConfiguration)	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	close()
@NonNull io.nats.client.Consumer	getConsumer(@NonNull String id)	Returns the subscription by given id.
@NonNull Set<String>	getConsumerIds()	The IDs of the available consumers.
@NonNull Set<io.nats.client.Subscription>	getConsumerSubscription(@NonNull String id)	Returns a managed Consumer's subscriptions.
io.nats.client.Subscription	newSubscription(@NonNull String connectionName, @NonNull String subject, @Nullable String queue)	Create a new subscription from the given connection name.
io.nats.client.Subscription	newSubscription(@NonNull String subject, @Nullable String queue)	Create a new subscription with the default connection.
void	process(io.micronaut.inject.BeanDefinition<?> beanDefinition, io.micronaut.inject.ExecutableMethod<?,?> method)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NatsConsumerAdvice

public NatsConsumerAdvice(io.micronaut.context.BeanContext beanContext,
 NatsBinderRegistry binderRegistry,
 NatsMessageSerDesRegistry serDesRegistry,
 NatsListenerExceptionHandler exceptionHandler,
 io.micronaut.runtime.ApplicationConfiguration applicationConfiguration)

Default constructor.

Parameters:

beanContext - The bean context

binderRegistry - The registry to bind arguments to the method

serDesRegistry - The serialization/deserialization registry

exceptionHandler - The exception handler to use if the consumer isn't a handler

applicationConfiguration - The application configuration

Method Details

process

public void process(io.micronaut.inject.BeanDefinition<?> beanDefinition,
 io.micronaut.inject.ExecutableMethod<?,?> method)

Specified by:

process in interface io.micronaut.context.processor.AnnotationProcessor<Subject,io.micronaut.inject.ExecutableMethod<?,?>>

Specified by:

process in interface io.micronaut.context.processor.ExecutableMethodProcessor<Subject>

close

@PreDestroy
public void close()

Specified by:

close in interface AutoCloseable

getConsumer

@NonNull
public @NonNull io.nats.client.Consumer getConsumer(@NonNull
 @NonNull String id)

Description copied from interface: ConsumerRegistry

Returns the subscription by given id.

Specified by:

getConsumer in interface ConsumerRegistry

Parameters:

id - String The id of the listener

Returns:

The consumer

getConsumerIds

@NonNull
public @NonNull Set<String> getConsumerIds()

Description copied from interface: ConsumerRegistry

The IDs of the available consumers.

Specified by:

getConsumerIds in interface ConsumerRegistry

Returns:

The consumers

getConsumerSubscription

@NonNull
public @NonNull Set<io.nats.client.Subscription> getConsumerSubscription(@NonNull
 @NonNull String id)

Description copied from interface: ConsumerRegistry

Returns a managed Consumer's subscriptions.

Specified by:

getConsumerSubscription in interface ConsumerRegistry

Parameters:

id - The id of the producer.

Returns:

The consumer subscription

newSubscription

public io.nats.client.Subscription newSubscription(@NonNull
 @NonNull String subject,
 @Nullable
 @Nullable String queue)

Description copied from interface: ConsumerRegistry

Create a new subscription with the default connection.

Specified by:

newSubscription in interface ConsumerRegistry

Parameters:

subject - String

queue - String optional

Returns:

subscription Subscription

newSubscription

public io.nats.client.Subscription newSubscription(@NonNull
 @NonNull String connectionName,
 @NonNull
 @NonNull String subject,
 @Nullable
 @Nullable String queue)

Description copied from interface: ConsumerRegistry

Create a new subscription from the given connection name.

Specified by:

newSubscription in interface ConsumerRegistry

Parameters:

connectionName - String

subject - String

queue - String optional

Returns:

subscription Subscription