[rules-users] Upload Rules to BRMS at runtime
Asif Akram
asif.akram at imperial.ac.uk
Sat Oct 4 13:45:43 EDT 2008
Hi David,
Thanks for your detailed mail. I will give it try and hopefully it
will work for me also.
Cheers
Asif
David Sinclair wrote:
> Micheal is right in that using RMI more tightly couples you to the
> underlying asset object model, but it also gives you a lot of
> flexibility. For instance, every time our object model changes, as
> part of the build process, the package is created/updated to include
> the updated JARS, updated header section, and updated code for the
> enumerations. It will then validate the package, build it, and create
> a new snapshot with the version of the model.
>
> To Micheal's point, I had to update my code to handle the change in
> the way header is stored in BRMS vs. Guvnor. In BRMS it was a property
> on the PackageItem, but now it is an AssetItem in the package.
>
> Here is a sample of connecting to the JCR, then using said session
> with the Drools API
>
> // THIS first part is JackRabbit's RMI code
> ClientRepositoryFactory factory = new ClientRepositoryFactory();
> Repository repository = factory.getRepository(rmiURL);
>
> Session session = repository.login(new SimpleCredentials(username,
> password.toCharArray()));
>
> // THIS IS DROOLS API
> RulesRepository rulesRepository = new RulesRepository(session);
>
> With the rulesRepository, you can than get packages out
>
> PackageIterator iterator = rulesRepository.listPackages();
>
> Create a new package
>
> rulesPackage = rulesRepository.createPackage(packageName, packageName);
>
> and so on...
>
> On Fri, Oct 3, 2008 at 6:13 AM, Asif Akram <asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>> wrote:
>
> Hi Dave,
>
> Is it possible to share the code snippet with us. I don't have
> any experience of Jackrabbit and RMI. Any concrete example will be
> helpful.
>
>
> Cheers
> Asif
>
> David Sinclair wrote:
>
> Hi Leo,
>
> I use the Drools API to interact with the JCR with I expose
> over RMI. I have the security on Jackrabbit, so I log into the
> JCR, not BRMS. But once the session is established I use the
> org.drools.repository.RulesRepository to work with BRMS
> artifcacts as opposed to JCR ones.
>
> hope that makes sense,
>
> dave
>
> On Thu, Oct 2, 2008 at 3:48 PM, Leonardo Figueiredo
> <leo.lists at gmail.com <mailto:leo.lists at gmail.com>
> <mailto:leo.lists at gmail.com <mailto:leo.lists at gmail.com>>> wrote:
>
> Hi David,
>
> You mean going around Drools Api and acessing the JCR directly?
>
> I really wanted the BRMS to expose an interface to add things.
> That would provide more security on upgrading versions without
> breaking functionality.
>
> Regards,
> Leo
>
> On Thu, Oct 2, 2008 at 11:58 AM, David Sinclair
> <dsinclair at chariotsolutions.com
> <mailto:dsinclair at chariotsolutions.com>
> <mailto:dsinclair at chariotsolutions.com
> <mailto:dsinclair at chariotsolutions.com>>> wrote:
>
> Guys,
>
> I use the Drools API over RMI. Jackrbait provides an RMI
> implementation to manipulate the JCR, and the Drools
> RulesRepository class works with an open JCR session
> object.
> Really is a pieice of cake; that is if an RMI solution
> is ok
> with you. You can always go RMI over HTTP too.
>
> dave
>
>
> On Thu, Oct 2, 2008 at 2:43 AM, Asif Akram
> <asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>
> <mailto:asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>>>
> wrote:
>
> Hi Leo,
>
> Thanks for your reply. You are absolutely correct, I
> was talking about API to upload rules, either using
> Restlet API or WebDav Client API or Drools API. I have
> read the article mentioning the support for Restlet Web
> Services and Webdav but haven't seen any such
> example yet.
> If only Drools Guvnor supports such features, I am fine
> with Drools 5.0.
>
> Leo, it will be be nice of you if you can share your
> homemade customized Servlet. Your sharing of ideas and
> experience will be appreciated.
>
> Cheers
> Asif
>
>
> Leonardo Figueiredo wrote:
>
> Hi,
>
> You mean using an api to add rules to the BRMS?
> If so
> i have the same problem. I am using an "homemade"
> build that have a custom Servlet that allows me to
> pass an DRL to be added to the BRMS.
>
> I am still searching for a better solution.
>
>
> Regards,
> Leo
>
>
>
> On Wed, Oct 1, 2008 at 7:00 AM, Asif Akram
> <asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>
> <mailto:asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>>
> <mailto:asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>
> <mailto:asif.akram at imperial.ac.uk
> <mailto:asif.akram at imperial.ac.uk>>>> wrote:
>
> Hi,
>
> I was wondering if it is possible to
> create and
> upload rules at
> runtime to BRMS to be accessed by other users. I
> have only seen
> the examples where existing packages/rules are
> loaded from the
> BRMS. Any help and suggestion will be
> appreciated.
>
> Cheers
> Asif
>
>
>
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