add ability to dump queue/message content to a file via JMX
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Key: QPID-1653
URL: https://issues.apache.org/jira/browse/QPID-1653
Project: Qpid
Issue Type: New Feature
Components: Java Broker, Java Management : JMX Console
Reporter: Robert Gemmell
Priority: Minor
Fix For: Eclipse MC M5
It would be useful to be able to dump queue/message content to a file using the
mangement console.
Some initial discussion on the topic from partychat:
(4:41:20 PM) Robbie: just considering the message/queue dump to file feature
(4:41:53 PM) Robbie: i was wondering...any thoughts on the best approach for
tackling binary content ?
(4:42:30 PM) Robbie: since it may or may not be mixed in with plain text
messages
(4:43:22 PM) Robbie: i think thinking maybe go with hex output..?
(4:43:32 PM) Robbie: *was thinking
(4:43:40 PM) [email protected]: ["Martin"] binary file?
(4:44:05 PM) Robbie: what about the text messages then ?:)
(4:44:06 PM) [email protected]: ["Martin"] The Messae/queue dump feature
was it to be readable?
(4:44:23 PM) Robbie: hmm, good point...i just asumed so
<snip>
(4:45:45 PM) [email protected]: ["Martin"] Is it couple with a message/queue
load?
(4:45:52 PM) [email protected]: ["Martin"] s/couple/coupled/
(4:45:52 PM) [email protected]: "Martin" meant Is it coupled with a
message/queue load?
(4:46:02 PM) Robbie: nope
(4:46:20 PM) [email protected]: ["aidan"] i would say leave the contents
alone and dump the bit stream. I might have a zip or something i want to get
out of the message that I don't want to de-hexify
(4:46:24 PM) Robbie: i dot eall have any mroe background on it than what i just
said above hehe
(4:46:44 PM) Robbie: *dont really
(4:47:06 PM) [email protected]: ["Martin"] I'd say dump like the MC viewer :
| ASCII | HEX |
(4:47:42 PM) Robbie: my original thoughts were to be putting out some of the
header info, then the contents.....lather, rinse and repeat
(4:47:58 PM) [email protected]: ["aidan"] the viewer is a somewhat different
use case IMO
(4:48:13 PM) [email protected]: ["Martin"] Take a look at the MessasgeStore
Tool ... it does some thing similar.. but only dumps to the screen
(4:48:37 PM) Robbie: k
(4:48:59 PM) [email protected]: ["aidan"] yeah, see, in the case of the
message store tool I think the intention is to get something human-readable
(4:49:08 PM) [email protected]: ["aidan"] same as with view-message in the
console
(4:49:26 PM) [email protected]: ["aidan"] but with dump to disk you might
want to do a number of things with the message
(4:49:36 PM) [email protected]: ["aidan"] that require the origional message
contents
(4:49:49 PM) [email protected]: ["Martin"] but without a load it seems a bit
odd
(4:50:03 PM) [email protected]: ["Martin"] I'd expect dump , fix issue, load
(4:50:09 PM) Robbie: i think maybe we need a marnie:ping to decide futher :)
(4:50:24 PM) Robbie: well, load isnt out of the question, it was jsut never
mentioned is all :)
(4:50:24 PM) [email protected]: ["aidan"] file a jira and attach this
conversation to it?
(4:50:36 PM) [email protected]: ["rob"] i'd not worry about load just yet
(4:50:40 PM) Robbie: k
(4:50:48 PM) [email protected]: ["aidan"] load gets rather more messy
(4:50:52 PM) [email protected]: ["rob"] indeed
<snip>
(4:51:01 PM) [email protected]: ["rob"] it breaks lots of important
properties of the model as well
<snip>
(4:51:30 PM) [email protected]: ["aidan"] but I can see a use case of
something like "i need this humongous archive out of my queue so I can put it
on an ftp server"
<snip>
(4:51:43 PM) [email protected]: ["aidan"] and having to de-MIME it first
would irritate me
(4:52:00 PM) Robbie: ;)
(4:52:09 PM) [email protected]: ["rob"] The most likely thing is going to be
"this message keeps breaking my application" "what's in the message" "I don't
know - whenever I try to get it it breaks my application"
<snip>
(4:52:52 PM) [email protected]: ["aidan"] rob: indeed, and if the message is
a bitstream it should probably stay a bitstream
<snip>
(4:53:03 PM) [email protected]: ["rob"] yes - you want to have the option
(4:53:22 PM) [email protected]: ["rob"] ideally we'd like to have a way to
deserialize the different java message types
(4:53:32 PM) [email protected]: ["rob"] you also want to get the headers -
separate from the file content
(4:55:07 PM) Robbie: k
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