Setting message priority via @Header annotation

[gstathis]

Just need to verify whether this is true: if one attempts to set a message priority via @Header annotation, such as:

@Gateway(requestChannel="fooChannel")
public abstract void bar(String msg, @Header(MessageHeaders.PRIORITY) MessagePriority priority);

They will get an IllegalArgumentException from this line:

public class ArgumentArrayMessageMapper implements InboundMessageMapper<Object[]> {
[...]
	@SuppressWarnings("unchecked")
	private Message<?> mapArgumentsToMessage(Object[] arguments) {
        [...]
				else if (annotation.annotationType().equals(Header.class)) {
					Header headerAnnotation = (Header) annotation;
					String headerName = this.determineHeaderName(headerAnnotation, methodParameter);
					if (headerName.startsWith(MessageHeaders.PREFIX)){
						throw new IllegalArgumentException("Attempting to set header: " + headerName + ". Prefix: '" 
								+ MessageHeaders.PREFIX + "' is reservered for SI internal use");
					}
        [...]
        }
[...]
}

Anyway around this by still using @Gateway or do I have to resort to a MessageBuilder or a MessageChannelTemplate?

Thank you in advance.

[Mark Fisher]

I just created an issue in JIRA for this:
https://jira.springsource.org/browse/INT-1205

[gstathis]

Thanks Mark. As a workaround, I wrapped my gateway bean with another one that sets the headers using the @Headers annotation. ArgumentArrayMessageMapper does not check for prefixes there.

[Mark Fisher]

That issue has been fixed. Please try again with either the trunk build or the M5 release (which should be out tomorrow).

Thanks for catching that issue!
-Mark