de.otto.synapse.endpoint.receiver

Class MessageQueueReceiverEndpoint

java.lang.Object

de.otto.synapse.endpoint.MessageEndpoint

de.otto.synapse.endpoint.receiver.MessageReceiverEndpoint

de.otto.synapse.endpoint.receiver.MessageQueueReceiverEndpoint

public abstract class MessageQueueReceiverEndpoint
extends MessageReceiverEndpoint

Receiver-side MessageEndpoint endpoint of a Message Channel with Queue or FIFO semantics.

Constructor Summary

Constructors

Constructor and Description
MessageQueueReceiverEndpoint(java.lang.String channelName, com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Summary

Modifier and Type	Method and Description
abstract void	consume() Takes zero or more messages from the channel, calls MessageEndpoint.intercept(Message) for every message, and notifies the registered consumers with the intercepted message, or drops the message, if intercept returns null.

Methods inherited from class de.otto.synapse.endpoint.receiver.MessageReceiverEndpoint

getEndpointType, getMessageDispatcher, register

Methods inherited from class de.otto.synapse.endpoint.MessageEndpoint

getChannelName, getInterceptorChain, intercept, registerInterceptorsFrom

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageQueueReceiverEndpoint

public MessageQueueReceiverEndpoint(@Nonnull
                                    java.lang.String channelName,
                                    @Nonnull
                                    com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Detail

consume

public abstract void consume()

Takes zero or more messages from the channel, calls MessageEndpoint.intercept(Message) for every message, and notifies the registered consumers with the intercepted message, or drops the message, if intercept returns null.

Consumption starts with the earliest available and not-yet-consumed message and finishes when either the stopCondition is met, or the application is shutting down.

The registered consumers are used as a callback for consumed messages. A MessageDispatcher can be used as a consumer, if multiple consumers, or consumers with message payloads other than String are required.