Message priorities
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Key: DIRMINA-428
URL: https://issues.apache.org/jira/browse/DIRMINA-428
Project: MINA
Issue Type: New Feature
Reporter: Adrian Sandor
I would like MINA to support sending messages with different priorities, so
that higher-priority messages will get sent out first (in the order that they
were added to the queue, if they have the same priority)
Here's how I think this could be implemented:
- define different priorities; I suggest using numeric constants, such as
LOWEST=0, LOW=25, NORMAL=50, HIGH=75, HIGHEST=100, allowing any custom values
from 0 to 100
- add a priority field to WriteRequest, and implement Comparable using it
- add a write(Object message, int priority) method to IoSession
- make write(message) call write(message, NORMAL)
- make the writeRequestQueue in the session implementations a priority queue,
but one that preserves the original order of "equal" elements
- ensure that a higher priority message won't interrupt sending out another
message (if pending)
- if desired, write an IoFilter that can manipulate the priority
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