io.nats.cloud.stream.binder

Class NatsMessageSource

java.lang.Object

org.springframework.integration.util.AbstractExpressionEvaluator

org.springframework.integration.endpoint.AbstractMessageSource<Object>

io.nats.cloud.stream.binder.NatsMessageSource

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.Lifecycle, org.springframework.integration.core.MessageSource<Object>, org.springframework.integration.support.context.NamedComponent, org.springframework.integration.support.management.IntegrationManagement, org.springframework.integration.support.management.MessageSourceMetrics

public class NatsMessageSource
extends org.springframework.integration.endpoint.AbstractMessageSource<Object>
implements org.springframework.context.Lifecycle

Message source for NATS connections, allowing synchronous polling.

Nested Class Summary

Nested classes/interfaces inherited from interface org.springframework.integration.support.management.IntegrationManagement

org.springframework.integration.support.management.IntegrationManagement.ManagementOverrides

Field Summary

Fields inherited from class org.springframework.integration.util.AbstractExpressionEvaluator

EXPRESSION_PARSER

Fields inherited from interface org.springframework.integration.support.management.IntegrationManagement

METER_PREFIX, RECEIVE_COUNTER_NAME, SEND_TIMER_NAME

Constructor Summary

Constructors

Constructor and Description
NatsMessageSource(NatsConsumerDestination destination, io.nats.client.Connection nc) Create a message source.

Method Summary

Modifier and Type	Method and Description
protected Object	doReceive()
String	getComponentType()
boolean	isRunning()
void	start()
void	stop()

Methods inherited from class org.springframework.integration.endpoint.AbstractMessageSource

buildMessage, destroy, getBeanName, getComponentName, getManagedName, getManagedType, getMessageCount, getMessageCountLong, getOverrides, isCountsEnabled, isLoggingEnabled, receive, registerMetricsCaptor, reset, setBeanName, setCountsEnabled, setHeaderExpressions, setLoggingEnabled, setManagedName, setManagedType

Methods inherited from class org.springframework.integration.util.AbstractExpressionEvaluator

afterPropertiesSet, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, getBeanFactory, getEvaluationContext, getEvaluationContext, getMessageBuilderFactory, onInit, setBeanFactory, setConversionService

Methods inherited from class java.lang.Object

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

Constructor Detail

NatsMessageSource

public NatsMessageSource(NatsConsumerDestination destination,
                         io.nats.client.Connection nc)

Create a message source. Once started, the source will have a subscription but no threads. Calls to doReceive result in a nextMessage call at the NATS level. Currently nextMessage is called with Duration.ZERO and will wait forever.

Parameters:

destination - where to subscribe

nc - NATS connection

Method Detail

doReceive

protected Object doReceive()

Specified by:

doReceive in class org.springframework.integration.endpoint.AbstractMessageSource<Object>

isRunning

public boolean isRunning()

Specified by:

isRunning in interface org.springframework.context.Lifecycle

start

public void start()

Specified by:

start in interface org.springframework.context.Lifecycle

stop

public void stop()

Specified by:

stop in interface org.springframework.context.Lifecycle

getComponentType

public String getComponentType()

Specified by:

getComponentType in interface org.springframework.integration.support.context.NamedComponent