[Mondrian] Mondrian 4 as a Pentaho Plugin

Luc Boudreau lucboudreau at gmail.com
Fri Jun 27 11:29:35 EDT 2014


OSGI is a bit more picky. You'll need to create a new fragment bundle,
which depends on your driver, and injects itself into the mondrian bundle.

It requires a new jar all these things are specified in the manifest.




On Fri, Jun 27, 2014 at 11:24 AM, Tom Barber(Alabs) <tom at analytical-labs.com
> wrote:

>  Hmm thanks for the tip Kurtis, no joy so far. Should I assume the driver
> needs osgi'ifying?
>
> Thanks
>
> Tom
>
>
> On 27/06/14 15:46, Kurtis Walker wrote:
>
> The hive error is misleading.  It really means that no JDBC driver could
> be found to satisfy your connect string.  I think you'll need to put your
> driver in the OSGI directory also.
>
> On Fri, 2014-06-27 at 09:33 -0500, Tom Barber(Alabs) wrote:
>
> Looks about right, thanks Luc, Mondrian + Commons IO needed placing in the
> osgi directory.....
>
> Now if only I knew why on earth its trying to use Hive to connect....
>
> On 27/06/14 14:11, Luc Boudreau wrote:
>
>   Oh right. That'd be in the EE builds only I'm afraid.
>
> The modules should be in solutions/system/osgi
>
>   On Jun 27, 2014 8:59 AM, "Tom Barber(Alabs)" <tom at analytical-labs.com>
> wrote:
>
>   Interesting Luc, you mean should work out of the box, as in, there is
> already a jar there?
>
> I downloaded 5.1 and had a look, the Mondrian Jar I found(grep) was
> labeled 3.7 and I asked Pedro and he said there were some Mondrian 4 stuff
> for Mongo but not in general population.
>
> Tom
>
> On 27/06/14 13:50, Luc Boudreau wrote:
>
>     Hello Tom,
>
> With a 5.1 server, all you need to do is use "jdbc:mondrian4" instead of
> "jdbc:mondrian" as the URL prefix and it should work out of the box.
>
> Let us know if you run into any issues.
>
> Luc
>
>     On Jun 27, 2014 6:38 AM, "Tom Barber(Alabs)" <tom at analytical-labs.com>
> wrote:
>
> Alright chaps,
>
> I'm trying to crowbar Mondrian 4 into the BI Server Saiku plugin and I
> would like some clarification of a few bits and pieces.
>
> We've shipped our own Mondrian Jar and also done some funky cache
> sharing etc, anyway, I would like to ship Mondrian 4 and unsurprisingly
> its not as simple as just replacing the Jar.
>
> I would like to know
>
> a) is it even possible? I saw Julian's slide suggesting that the
> Mondrian 4 lib should run happily alongside Mondrian 3 as an OSGI module.
> b) To bootstrap Mondrian we currently run  Class.forName(
> "mondrian.olap4j.MondrianOlap4jDriver" ); but if have 2 Jars, how does
> is it supposed to know which to bootstrap, or should it load Mondrian 3,
> but Mondrian 4 be automatic or do I have to register the Mondrian 4 jar
> in a different manner?
> Either way I get
> java.lang.IllegalAccessError: class mondrian.olap4j.MondrianOlap4jExtra
> cannot access its superclass mondrian.xmla.XmlaHandler$XmlaExtraImpl
>
> The first time I try and run Saiku followed by
> java.lang.NoClassDefFoundError: Could not initialize class
> mondrian.olap4j.MondrianOlap4jDriver
>
> The next time, so I need work out how to unclash them if possible.
>
> I tried just straight replacing Mondrian 3 with Mondrian 4 in the
> platform out of curiosity but with that I get a linkage error so that
> test was also a no go.
>
> Anyway, hints or tips please.
>
> Thanks
>
> Tom
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