I got a specific issue - I need to introduce a delay in sending a message to
a second consumer. Let me explain:

There are two consumer on one Destination. A user is connected to only one
of these consumers at any time. So, if one consumer is doing process (say,
BUSY), the users are routed to the second consumer. 

The flow is like this:

First consumer will receive the message. It then changes its state to BUSY
so users are routed to second consumer. It does the some process upon
receiving the message (while the second consumer shouldn't receive at all
but serves the users though).

Once the first consumer finishes the process, the second consumer should
receive the same message. So, the second consumer becomes BUSY while first
consumer now servers the users. It does same process as first consumer.

BOTH consumers are EXACTLY SAME - they do the EXACT process. The only
difference is that - only one of the consumers will be exposed to the
external client.

So, my question is - is there a way to ask the Second consumer to pick up
the message only when first consumer finishes?

(Remember that the processing will swap from first to second consumer and
from second consumer to first)

Any thoughts (I'll sincerely appreiate)
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