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| Message flow and checking topic subscriptions |
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| marcin.kasinski |
 Posted: Wed Dec 20, 2006 5:54 am Post subject: Message flow and checking topic subscriptions |
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Sentinel
Joined: 21 Dec 2004
Posts: 850
Location: Poland / Warsaw
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I would like in my message flow to check if anybody is subscribed to concrete topic.
I can use JAVA node and CMP API.
Do you know how I can do it in other way ?
Best Regards
Marcin |
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| jefflowrey |
| Posted: Wed Dec 20, 2006 6:10 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Why would you write a monitoring application inside a message flow?
If you are not writing a monitoring application, why do you want to know if someone is subscribed to a topic or not?
A publisher should never be written to know anything about subscribers.
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I am *not* the model of the modern major general. |
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| marcin.kasinski |
| Posted: Wed Dec 20, 2006 7:07 am Post subject: |
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Sentinel
Joined: 21 Dec 2004
Posts: 850
Location: Poland / Warsaw
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| jefflowrey wrote: |
Why would you write a monitoring application inside a message flow?
If you are not writing a monitoring application, why do you want to know if someone is subscribed to a topic or not?
A publisher should never be written to know anything about subscribers. |
It’s hard to answer why in few words.
We are planning to use publish-subscribe scenario in our company on broker without changing end applications.
We would like to create centralized database consist publisher-subscriber mapping and application to manage this mappings.
I would like to prepare some monitoring tool to check in our system test environment if every sent message has registered subscriber, broker behavior, monitoring performance, message content, etc.
Best Regards
Marcin |
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| Vitor |
| Posted: Wed Dec 20, 2006 7:29 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| marcin.kasinski wrote: |
It’s hard to answer why in few words.
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"It seemed like a good idea at the board meeting"
There are other better, facilities available to check on subscription status, topics, etc.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| jefflowrey |
| Posted: Wed Dec 20, 2006 7:51 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You should probably
a) buy a monitoring tool, rather than trying to write one,
b) write a flow that subscribes to *everything* and logs all your messages to an audit database ,
c) not worry about whether a published message has any active subscribers but rather MONITOR THE SUBSCRIBERS.
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I am *not* the model of the modern major general. |
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