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From Raúl Kripalani (JIRA) <j...@apache.org>
Subject [jira] [Commented] (IGNITE-534) Implement IgniteJmsStreamer to stream data from a JMS broker like ActiveMQ
Date Thu, 13 Aug 2015 10:33:46 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695035#comment-14695035
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Raúl Kripalani commented on IGNITE-534:
---------------------------------------

bq. Bracing for one-liner ifs or loops is not required and usually is not used. E.g., this
code:

The documentation says:

bq. Brackets are required in all cases, even if not required by syntax, except for the cases
when next statement is one-liner. The following code does not require brackets.

"Does not require brackets" does not denote norm: it denotes preference.

The entire section was unclear. I replaced the term "Brackets" for "Braces" and made the "no
braces on one-line blocks" a norm.

bq. Semantic units have to be separated by empty lines. E.g., this code:

I agree with the separations you suggest except for the scheduler. Could you explain why you
want it this way? For me it's the same "semantical unit".

> Implement IgniteJmsStreamer to stream data from a JMS broker like ActiveMQ
> --------------------------------------------------------------------------
>
>                 Key: IGNITE-534
>                 URL: https://issues.apache.org/jira/browse/IGNITE-534
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: streaming
>            Reporter: Dmitriy Setrakyan
>            Assignee: Valentin Kulichenko
>
> We have {{IgniteDataStreamer}} which is used to load data into Ignite under high load.
It was previously named {{IgniteDataLoader}}, see ticket IGNITE-394.
> We should create {{IgniteJmsStreamer}} which will consume messages from a given queue
or topic of a JMS broker and stream them into Ignite caches.
> Even though we'll use AMQ for testing, this streamer should be implementation-agnostic
and only use JMS constructs where possible.
> See [Apache ActiveMQ|http://activemq.apache.org/] for more information.
> More details to follow, but to the least we should be able to:
> * Convert a JMS message to Ignite data using an optional pluggable converter. If not
provided, we should have some default mechanism.
> * Specify the cache name for the Ignite cache to load data into.
> * Specify other flags available on {{IgniteDataStreamer}} class.



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