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https://issues.apache.org/jira/browse/CAMEL-3142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13097140#comment-13097140
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Mathieu Lalonde edited comment on CAMEL-3142 at 9/5/11 4:00 PM:
----------------------------------------------------------------
*Status Update* (with less confusion this time)
At the moment I have a JpaPollingConsumer that returns a list of polled
entities. It supports all the PollingConsumer interface returning null when it
couldn't poll anything. It supports maxMessagesPerPoll.
Here is a snippet that shows how I implemented receive(timeout). Should I add
"pollInterval" as a configurable option?
{code}
public Exchange receive(long timeout) {
final StopWatch stopWatch = new StopWatch();
stopWatch.restart();
List<?> polledEntities = doReceive();
while (polledEntities == null && stopWatch.taken() < timeout) {
try {
Thread.sleep(pollInterval);
polledEntities = doReceive();
} catch (InterruptedException e) {
log.trace("received(long timeout) interrupted after {} ms: Are
we stopping: {}", stopWatch.taken(), isStopping());
}
}
return createExchange(polledEntities);
}
{code}
was (Author: mrlalonde):
*Status Update*
At the moment I have a JpaPollingConsumer that returns a list of polled
entities. It supports receiveNoWait(..) & works with pollEnrich(uri) as long as
there are items to be polled. The other receive(..) methods do not block and I
don't yet honor the timeout. I simply return an empty list if there was
nothing to poll. I do support maxMessagesPerPoll.
Any thoughts or recommendation for receive() & receive(timeout)?
Any Camel idiom I should use for the timeout, I usually use a TimerTask.
> JpaPollingConsumer - So you can more easily work with pollEnrich
> ----------------------------------------------------------------
>
> Key: CAMEL-3142
> URL: https://issues.apache.org/jira/browse/CAMEL-3142
> Project: Camel
> Issue Type: New Feature
> Components: camel-jpa
> Affects Versions: 2.4.0
> Reporter: Claus Ibsen
> Assignee: Mathieu Lalonde
> Priority: Minor
> Fix For: 2.9.0
>
> Attachments: camel-jpa_initialPolish.patch
>
>
> See
> http://fusesource.com/forums/thread.jspa?threadID=2256&tstart=0
> The best solution is to add a JpaPollingConsumer implementation so it works
> better with pollEnrich
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