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https://issues.apache.org/jira/browse/DROIDS-48?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingfai Ma updated DROIDS-48:
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Attachment: DROIDS-48d2.patch
the prev patches breaks a testcase and it is fixed. This patch patches only one
file and should be used on top of DROIDS-48d.patch
> Support prioritizing in the TaskQueue
> -------------------------------------
>
> Key: DROIDS-48
> URL: https://issues.apache.org/jira/browse/DROIDS-48
> Project: Droids
> Issue Type: New Feature
> Components: core
> Affects Versions: 0.01
> Reporter: Mingfai Ma
> Attachments: DROIDS-48d.patch, DROIDS-48d2.patch
>
>
> Use case:
> - when looping a directory, (imagine someone is too stupid and dunno the
> dmoz database can be downloaded and try to crawl it with Droids) we got
> collect a lot of links that will be handled later. assume the requirement is
> to fetch dmoz directory +1 link outside dmoz.org, In the original mechanism,
> it will keep adding new links to the TaskQueue. Ideally, there should be a
> mechanism to give a higher priority to the non-dmoz.org links, so when
> non-dmoz links are added, they are processed first, and be removed from the
> TaskQueue asap.
> with the patch in DROIDS-47, a constructor is added to the SimpleTaskQueue to
> support a custom Queue. This issue suggests to change the SimpleTaskQueue to
> use a PriorityBlockingQueue by default, and add a getWeight to the Task
> interface
> I'm also thinking about a more complex TaskQueue. to be discussed in the mail
> list later.
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