[rules-users] process-designer deserialization error

[Kris Verlaenen]

Hi,

It is possible there are still issues between Oryx and Drools Eclipse 
plugin, as they are both using the same spec but not necessarily the 
same version (or interpreting the spec differently).  First of all, I 
would recommend updating to the latest version of the Oryx designer 
(unfortunately you'll have to use Chrome as browser in that case as it 
doesn't load on FF, something small we still have to fix) which can be 
found here: 
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/1.0.0.026-SNAPSHOT/

The reason is that the first version of the designer (which you were 
using) was still using the beta1 version of the BPMN2 spec.  The eclipse 
plugin is already using the beta2 version, and so is the latest version 
of the designer.  There is still limited support for the beta1 format, 
that's why eclipse will be able to open and save a BPMN2 file created in 
Oryx (it will use beta1 format in that case), but starting from Eclipse 
won't work in Oryx (as the old version of Oryx won't understand the 
beta2 format).  You can see the difference by looking at the namespace 
used for bpmn, which will be different for beta1 and beta2.

The other problem you mentioned, the "g" namespace not being added to 
the BPMN2 file, is indeed a known issue that is already fixed on the 
latest trunk.  I suggest you download a latest version of the Eclipse 
plugin here:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/

Kris

melc wrote:
> I also get this error when creating a bpmn process in eclipse (galileo) and
> trying to open/view it  in guvnor, having it committed first. 
>
> I'm using jboss-5.1.0.GA and drools version 5.1 . The application server is
> running on port 8080 (default configuration). I'm not using any rdbms only
> what
> comes bundled (h2 embedded db ) with drools.  For oryx designer i'm using 
> designer.war Revision 35836: /labs/jbossrules/contrib/designer as downloaded
> from url,
> http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/designer/
> as specified in,
> http://blog.athico.com/2010/09/bpmn2-authoring-in-drools-guvnor.html
>
> The only way I have managed to view and edit a bpmn model inside guvnor by
> using
> the oryx designer and also being able to open for view and editing in
> eclipse
> with commits and updates back and forth with guvnor and everything to work
> fine
> is by,
> 1. creating a model from scratch in oryx designer (
> http://localhost:8080/designer/editor ), preferably just a start and end
> point and maybe also a single task between them (start and end only works
> fine).
> 2. download the model from the option of oryx designer "Download BPMN 2.0 DI
> XML" 
> 3. import in eclipse from filesystem
> 4. add/change stuff and add to guvnor
>
> Afterwards everything works fine whether edited and committed from guvnor
> and
> viewed in eclipse or edited and committed from eclipse and viewed in guvnor.
>
> By comparing the bpmn xml files created from oryx and from eclipse there
> seem to
> be differences that actually cause this error, since they stop occurring if
> using the same syntax.
> I'm still trying to find which different part actually casuses this, when i
> find
> it i will post it.
>
> Sorry for the long text, any help will be greatly appreciated!!
> Thank you.
>
> p.s. just to make things more annoying I would like to mention that when
> adding from eclipse
> to a bpmn model that "works" a Rule Task element and then close the bpmn
> model tab
> in eclipse and reopen it a strange error appears, which occurs because of a
> strange prefix 'g' character inserted in the xml of the bpmn. If it is
> removed from the xml
> everything works fine.... I suppose everything has to do with the different
> xml
> schemas, namespaces and tags used in the xml bpmn.. . .
>