Service Activator is not getting invoked - spring-boot

Question

I am trying this use case:
Poll for a message in a queue->transform the message->Call a method with the transformed message.
Here is my code
<jms:message-driven-channel-adapter id="jmsIn"
destination-name="test"
channel="jmsInChannel"/>
<channel id="jmsInChannel"/>
<channel id="consoleOut"/>
<int:transformer input-channel="jmsInChannel" ref="xmlMsgToVORPojoTransformer" output-channel="consoleOut">
</int:transformer>
<beans:bean id="xmlMsgToVORPojoTransformer" class="com.order.jmspublisher.ValidateOrderMessageTransformer">
<beans:property name="unmarshaller" ref="marshaller" />
</beans:bean>
<beans:bean id="marshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
<beans:property name="classesToBeBound">
<beans:list>
<beans:value>com.order.jmspublisher.ValidateOrderResponseType</beans:value>
</beans:list>
</beans:property>
</beans:bean>
<logging-channel-adapter id="consoleOutloggerChannel" channel="consoleOut" log-full-message="true" level="DEBUG"/>
<int:service-activator id="sa" input-channel="consoleOut" output-channel="someChannel" method="handleVOR">
<beans:bean id="vorActivator" class="com.order.jmspublisher.VORServiceActivator"/>
</int:service-activator>
My Transformer code is as follows:
#SuppressWarnings("rawtypes")
public Message transform(String message)
{
try {
XMLInputFactory xif = XMLInputFactory.newFactory();
XMLStreamReader xsr = xif.createXMLStreamReader(new StreamSource(new StringReader(message)));
xsr.nextTag(); // Advance to Envelope tag
while(xsr.hasNext() ) {
int next = xsr.next();
if(next == XMLStreamReader.START_ELEMENT)
if(xsr.getLocalName().equals("ValidateOrderResponse"))
{
break;
}
}
ValidateOrderResponseType vor = (ValidateOrderResponseType)marshaller.unmarshal(new StAXSource(xsr));
return MessageBuilder.withPayload(vor).build();
} catch (XmlMappingException e) {
return MessageBuilder.withPayload(e).build();
} catch(Exception e){
return MessageBuilder.withPayload(e).build();
}
}
========================================================================
My service activator method code is as follows:
public class VORServiceActivator {
private static final Logger logger = LoggerFactory.getLogger(VORServiceActivator.class);
#ServiceActivator
public String handleVOR(ValidateOrderResponseType vor)
{
logger.info("vor information received and invoke some services here....\r\n"+vor);
return vor.toString();
}
}
=========================================================================
My service activator method is not getting called. But my transform is getting called and I can see the same in logs.
Please help me to know where I am going wrong.
Thanks in advance.

Answer 1

<channel id="consoleOut"/> is a DirectChannel; you have 2 consumers subscribed to the channel (logging adapter and service activator).
The default dispatcher will distribute messages to these competing consumers in round-robin fashion; so each will get alternate messages.
You need to change consoleOut to a <publish-subscribe-channel /> if you want both consumers to get all messages.
You can read about channel types here.