Howto reach AMFHeader in Interceptor?

[GeHe]

Hello,

the title says it all. I have registered an MessageInterceptor and try to get
the header out. But i can not reach them through the MessageProcessingContext context or Message inputMessage.
By debugging i noticed that in the MessageBrokerFilter they are in the ActionContext.requestMessage.requestHeaders. How can i get them in the Interceptor?


Regards
GeHe

[GeHe]

I also noticed, that outgoing header are not received, not set in the outgoing message?

[jeremyg484]

Can you provide more details as to what exactly isn't there that you are expecting? You should definitely be able to get to the headers through the Message interface.

[GeHe]

Thank you for response. I have written a testclient to try spring blazeds integration with headers.

import flex.messaging.io.amf.client.AMFConnection;
import junit.framework.TestCase;

public class TestBaseService extends TestCase {

	public void testHelo() throws Exception {
                AMFConnection connection = new AMFConnection();
		connection.connect("myurl");
                connection.addAmfHeader("key", "value");
		Object result = connection.call("myservice.hello");
	}
}

But in the interceptor

import org.springframework.flex.core.MessageInterceptor;
import org.springframework.flex.core.MessageProcessingContext;

import flex.messaging.messages.Message;

public class FlexInterceptor implements MessageInterceptor {

	@Override
	public Message postProcess(MessageProcessingContext context, Message inputMessage,
			Message outputMessage) {
	outputMessage.setHeader("key_out", "value_out");
		return outputMessage;
	}

	@Override
	public Message preProcess(MessageProcessingContext context, Message inputMessage) {
		// control incoming msgs
		String header = (String) inputMessage.getHeader("key");
	
		return inputMessage;
	}

}

i do net geht the header "key" (and the set header "key_out" does not get out). When i debug just before the interceptor (flex.messaging.endpoints.amf.MessageBrokerFilter. invoke(final ActionContext context)) i can see the header in the context.requestMessage.requestHeaders.

Conclusion: I expected the header to retrieve by inputMessage.getHeader("key"); - it is there, but i do not get it.

[ShaunakDesai]

I haven't seen any API method to get to a specific header yet. But, there is a getHeaders() method which returns a Map for the message headers. You should be able to then use the get("headerNameAsKey") to get the value of a specific message meader.

Code snippet:
inputMessage.getHeaders().get("key");

or... directly get the list of values and iterate through...

Collection headers = message.getHeaders().values();
for(Object header:headers) {
// read the header or do something
}

To set the header the method is :
inputMessage.setHeaders(Map map)