Re: Maven Indexer questions

[Laird Nelson]

On Thu, Mar 30, 2017 at 2:34 PM Tamás Cservenák  wrote:

> sadly, not possible right now:
> https://issues.apache.org/jira/browse/MINDEXER-81


Thank you; I've voted for the bug, watched it and added a comment:
https://issues.apache.org/jira/browse/MINDEXER-81?focusedCommentId=15949969=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15949969

Best,
Laird

Re: Maven Indexer questions

[Tamás Cservenák]

Hi Laird,

sadly, not possible right now:
https://issues.apache.org/jira/browse/MINDEXER-81

Lucene does handle "dynamically added" fields, but MI as it currently
stands does not.

On Wed, Mar 29, 2017 at 6:31 PM Laird Nelson  wrote:

> I am working with the maven-indexer componentry for the first time; please
> forgive my ignorance.
>
> I normally wouldn't ask these questions here, but there is no
> documentation.
>
> Suppose I am writing an IndexCreator implementation that wants to look at
> all the META-INF/MANIFEST.MF files reachable in a repository and create
> fields for each header found in them.  (First off, is such dynamic field
> creation even A Thing?  I am no kind of Lucene expert.)
>
> (I'm looking to allow things like "find me artifacts that contain 'fred' in
> their Class-Path manifest header" or any of a variety of other use cases
> derivable from the ability to index properties-like files inside artifact
> jars.)
>
> What, in this case, should my IndexCreator return from its (undocumented)
> getIndexerFields() method?  If it's called "up front", then of course I
> can't return anything meaningful since I won't know the sum total of the
> fields my IndexCreator will contribute until the end.  If it's not called
> up front, then maybe I'm OK.  I don't actually see it being called in any
> meaningful way at all, but I'm sure I'm missing something, which is why I
> ask here.
>
> Next, I noticed that IndexerField has a getVersion() method, and from
> spelunking some more in the source base it seems like certain IndexCreators
> effectively "bump up" this version, i.e. every time a new IndexCreator
> comes up with new fields it does so with a new version.  That suggests that
> perhaps I need to also get a constant added to IndexerFieldVersion, which
> is an enum.  Can I just invent a version number here (I don't see this
> method called anywhere in the source base) or must I use an existing one,
> or…?
>
> Lastly, I see that ArtifactInfo seems to have fields in it that correspond
> loosely with the kinds of IndexCreators that exist (for example, it has a
> classNames field, which to my naive eyes is filled in by the
> JarFileContentsIndexCreator, suggesting that if you add a funky new
> IndexCreator you are obliged to add new fields to ArtifactInfo, but that
> coupling seems really wrong so I'm sure I'm missing something).  Is that
> actually true?  Also, the class is marked as being "phased out", but seems
> to be central to the notion of creating indices.  Is there an alternative I
> should be using instead?
>
> Thanks in advance for help with these baby steps.
>
> Best,
> Laird
>
-- 
Thanks,
~t~

Re: Maven Indexer questions

[Hervé BOUTEMY]

there is the documentation for component reference documentation publication:
http://maven.apache.org/developers/website/deploy-component-reference-documentation.html

but nothing for end-users: the developer doc is not easy to understand, but I 
managed to write one. For end-users, I don't know how to write it to have a 
chance someone will use it...

Regards,

Hervé

Le jeudi 30 mars 2017, 16:57:51 CEST Laird Nelson a écrit :
> On Thu, Mar 30, 2017 at 9:44 AM Hervé BOUTEMY  wrote:
> > Le mercredi 29 mars 2017, 16:31:10 CEST Laird Nelson a écrit :
> > > I normally wouldn't ask these questions here, but there is no
> > 
> > documentation.
> > did you have a look at:
> > http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/
> > 
> > http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/indexe
> > r-core/index.html ?
> 
> No!  I was looking at http://maven.apache.org/maven-indexer/.
> 
> I've seen this pattern on the website before: sometimes there's something
> under foo-bar, and other times it's under
> foo-bar-archives/foo-bar-VERSION.  Is there a cheat sheet on when to look
> where?
> 
> Thanks for the pointers,
> Best,
> Laird



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Re: Maven Indexer questions

[Laird Nelson]

On Thu, Mar 30, 2017 at 9:44 AM Hervé BOUTEMY  wrote:

> Le mercredi 29 mars 2017, 16:31:10 CEST Laird Nelson a écrit :
> > I normally wouldn't ask these questions here, but there is no
> documentation.
> did you have a look at:
> http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/
>
> http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/indexer-core/index.html
> ?
>

No!  I was looking at http://maven.apache.org/maven-indexer/.

I've seen this pattern on the website before: sometimes there's something
under foo-bar, and other times it's under
foo-bar-archives/foo-bar-VERSION.  Is there a cheat sheet on when to look
where?

Thanks for the pointers,
Best,
Laird

Re: Maven Indexer questions

[Hervé BOUTEMY]

Le mercredi 29 mars 2017, 16:31:10 CEST Laird Nelson a écrit :
> I am working with the maven-indexer componentry for the first time; please
> forgive my ignorance.
> 
> I normally wouldn't ask these questions here, but there is no documentation.
did you have a look at:
http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/
http://maven.apache.org/maven-indexer-archives/maven-indexer-LATEST/indexer-core/index.html
?

I'm not a Lucene expert at all, and can't really give you better info, 
sorry...

Regards,

Hervé

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