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Subject: Re: Help understanding RepositoryContentConsumer API
From: Brett Porter <brett@apache.org>
In-Reply-To: <4bd395d17ea9fad0d6c12e8209d44688.squirrel@msqr.us>
Date: Mon, 7 Jul 2014 15:09:13 +1000
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References: <4bd395d17ea9fad0d6c12e8209d44688.squirrel@msqr.us>
To: dev@archiva.apache.org

It's close, but not quite the same meaning. The flag is for scanning a =
single file, vs. a whole repo (either via the repositories page, or a =
scheduled job). Single files get consumed when they are added via =
deployment/upload, for example.

A whole repo scan can either be incremental (files newer than =
"changesSince" in the scanner instance), or process all ("changesSince" =
will probably be epoch/null). I thought that was passed through to the =
consumer as "whenGathered", but it doesn't seem to be the case.

We could probably add some more hooks into the overall process if you =
wanted to propose such a change?

Or is processing updates and deletions sufficient to maintain the =
metadata, without having to start from scratch?

- Brett

On 5 Jul 2014, at 8:58 am, Matt Magoffin <"apache.org."@msqr.us> wrote:

> Hello,
>=20
> I have been working on a RepositoryContentConsumer implementation to
> generate OSGi bundle repository metadata XML file. It mostly works, =
except
> that I think I'm not quite understanding the "executeOnEntireRepo" =
flag in
> this method:
>=20
> void beginScan( ManagedRepository repository, Date whenGathered, =
boolean
> executeOnEntireRepo ) throws ConsumerException;
>=20
> The issue I have is that I want to know if I am just performing an
> incremental scan of the repository vs. the entire repository, i.e. =
from
> executing "Directories Scanning" action from the web UI. If the scan =
is
> incremental, I want to preserve the existing OBR metadata and just add =
the
> changes, otherwise I want to generate the metadata file from scratch.
>=20
> I had thought the executeOnEntireRepo flag would tell me if the scan =
was
> incremental, but it does not seem that is true. Can you tell me then, =
from
> this API, how I might tell the difference between an incremental scan =
and
> a full scan?
>=20
> Cheers,
> Matt
>=20
>=20