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https://issues.apache.org/jira/browse/CAMEL-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12993490#comment-12993490
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Richard Kettelerij edited comment on CAMEL-3655 at 2/11/11 1:52 PM:
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@Claus,
Thanks for creating the ticket (was about to do it myself but you were quicker
;)). Anyway the issue I faced with the FTP component was that there's no option
to read files on-demand from FTP (or plain filesystem) in the middle of a
route. The only way to read files is to use a continuously polling consumer,
which is fine it a lot of case I guess.
Now this can be solved by having a consumer that polls once and disconnects so
you can use it a content enricher. This should allow folks to download multiple
files in one poll and continue the route. Hadrian suggested using it in a
pipeline (using {{to()}}) but this requires a producer that can read from FTP
instead of a consumer (CAMEL-3397).
Also this might be a more general issue, shouldn't all polling consumers allow
for this behavior? It certainly also affects the file: component.
was (Author: rkettelerij):
@Claus,
Thanks for creating the ticket (was about to do it myself but you were quicker
;)). Anyway the issue I faced with the FTP component was that there's no option
to read files on-demand from FTP (or plain filesystem) in the middle of a
route. The only way to read files is to use a continuously polling consumer,
which is fine it a lot of case I guess.
Now this can be solved by having a consumer that polls once and disconnects so
you can use it a content enricher. This should allow folks to download multiple
files in one poll and continue the route. Hadrian suggested using it in a
pipeline (using {{to()}}) but this requires a producer that can read from FTP
instead of a consumer (CAMEL-3397).
Also this might be a more general issue, shouldn't all polling consumers
(without a viable event-driven counterpart) allow for this behavior? It
certainly also affects the file: component.
> Add FtpPollingConsumer to better support polling consumer EIPs
> --------------------------------------------------------------
>
> Key: CAMEL-3655
> URL: https://issues.apache.org/jira/browse/CAMEL-3655
> Project: Camel
> Issue Type: Improvement
> Components: camel-ftp
> Affects Versions: 2.6.0
> Reporter: Claus Ibsen
> Assignee: Tracy Snell
> Fix For: 2.7.0
>
>
> See nabble
> http://camel.465427.n5.nabble.com/Event-driven-FTP-consumer-tp3376242p3376242.html
> The PollingConsumer should only poll once and thus it should not be schedule
> based, and it should disconnect after polling.
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