JMS Header not getting stored into Spring Integration message header - spring-integration

Question

Have an incoming message from ActiveMQ queue and the message is being delivered properly. I need to access the JMS header value x-cutoffrule in my spring integration flow, but the value of cutoffrule in the handle section always is coming as null. My code is below:
#Bean
public JmsHeaderMapper sampleJmsHeaderMapper() {
return new DefaultJmsHeaderMapper() {
public Map<String, Object> toHeaders(javax.jms.Message jmsMessage) {
Map<String, Object> headers = super.toHeaders(jmsMessage);
try {
headers.put("cutoffrule", jmsMessage.getStringProperty("x-cutoffrule"));
} catch (JMSException e) {
e.printStackTrace();
}
return headers;
}
};
}
#Bean
public IntegrationFlow jmsMessageDrivenFlow(JmsHeaderMapper sampleJmsHeaderMapper ) {
return IntegrationFlows
.from(
Jms.messageDriverChannelAdapter(jmsMessagingTemplate.getConnectionFactory())
.destination(integrationProps.getIncomingRequestQueue())
.errorChannel(errorChannel())
.setHeaderMapper( sampleJmsHeaderMapper )
)
.handle((payload, headers) -> {
incomingPayload = payload;
logger.debug("cutoffrule"+ headers.get("cutoffrule"));
return payload;
})
.handle(message -> {
logger.debug("Message was succcessfully processed");
})
.get();
}
I thought the DefaultJmsHeaderMapper will map all JMS headers into the spring integration message. What am I missing?

Answer 1

The best way to understand what's wrong it to debug the code.
Or, at least log everything.
The best place for you is that your DefaultJmsHeaderMapper extension.
So, the DefaultJmsHeaderMapper maps all incoming properties. But it does that with the getObjectProperty() not getStringProperty(), like in your code:
Enumeration<?> jmsPropertyNames = jmsMessage.getPropertyNames();
if (jmsPropertyNames != null) {
while (jmsPropertyNames.hasMoreElements()) {
String propertyName = jmsPropertyNames.nextElement().toString();
try {
String headerName = this.toHeaderName(propertyName);
headers.put(headerName, jmsMessage.getObjectProperty(propertyName));
}
catch (Exception e) {
if (logger.isWarnEnabled()) {
logger.warn("error occurred while mapping JMS property '"
+ propertyName + "' to Message header", e);
}
}
}
}
So, your x-cutoffrule should be mapped exactly into the x-cutoffrule header.
See Andriy's comment, too.