[Announce] EulerGUI 1.7.1
by Jean-Marc Vanel
Reminder:
EulerGUI is a GUI for Semantic Web plus rules, centered on the N3 language.
It is Open Source, written in Java Swing, and reuses Drools, Jena, etc.
It has an N3 textual editor, with syntax coloring, tooltips. This N3 editor
is reusing the famous jEdit editor.
EulerGUI includes SPARQL queries, Pellet OWL reasoner, Graphviz diagram,
etc.
It has importers for OWL+SWRL ontologies, plain XML, plain XML, UML, eCore,
java bytecode (just method signatures).
It can launch several N3 logic engines, the main being based on Drools, by
translating N3 rules (adapted to the Semantic Web) to Drools rules language.
For Drools users, the main new features are:
- Drools N3 engine :
* Use Drools' insertLogical() feature for automatic retraction of
consequences no more holding,
* implement e:max, e:min (with dynamic RDF lists coming from e:findall)
* better handling of RDF lists, predicates list:in, math:memberCount
* better translation of e:findall
* fewer calls to the eval() macro of Drools,
* implement add and multiply builtins with more than 2 operands
* eg:trace works with variables created in an algebraic formula
* Jos de Roo's owl rules for OWL now passes Drools translation
- new cache for compiled rule bases using OSCache
- new N3 - Java
mapping<http://eulergui.svn.sourceforge.net/viewvc/eulergui/trunk/eulergui/html/a...>,
leverages on Drools to call Java methods in real time from N3 rules; will
replace the JavaScript+Java translator in most places
More details in the
CHANGELOG<http://eulergui.svn.sourceforge.net/viewvc/eulergui/trunk/eulergui/CHANGELOG>
.
--
Jean-Marc Vanel
Consulting, services, training,
Rule-based programming, Semantic Web
http://jmvanel.free.fr/
EulerGUI, a turntable GUI for Semantic Web + rules, XML, UML, eCore, Java
bytecode
+33 (0)6 89 16 29 52 -- +33 (0)1 39 55 58 16
( we rarely listen to voice messages, please send a mail instead )
--
Jean-Marc Vanel
Consulting, services, training,
Rule-based programming, Semantic Web
http://jmvanel.free.fr/
EulerGUI, a turntable GUI for Semantic Web + rules, XML, UML, eCore, Java
bytecode
+33 (0)6 89 16 29 52 -- +33 (0)1 39 55 58 16
( we rarely listen to voice messages, please send a mail instead )
13 years, 4 months
Guvnor and designer/editor...
by bob.breitling
Hey everybody,
I am trying to get the designer/editor and Guvnor working together. When I
edit a BPMN file the editor appears but the iframe it runs in has an
attribute of height=100%, which does not work with FF3 (and other browsers).
Has anybody seen the problem? and is there a solution for it. I am running
build 1.0.0.33 of the designer/editor. I can not get 1.0.0.49 to deploy.
Always complains about a SLFJ class not being found.
Thanks in advance.
Bob
--
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13 years, 4 months
Swing GUI & Drools
by albertkao
I want to find out whether Swing GUI, Drools 2.5 (the only version approved
by my company) & JDK 1.6.20 are a good fit for my application.
i.e. whether my application is complex enough to use Drools.
If Drools should be used, please give some hints how to implement with
Drools 2.5.
The business logic is:
if (Entity = Corporation) {
Switch (Account type) {
1: the Entity dropdown box field should be greyed out; the In
checkbox should be enabled.
2: the Entity dropdown box field should be greyed out; the Out field
should be selected.
3: the Entity dropdown box field show all the available values;
4: the Entity dropdown box field show value1, value2 only.
} else {
// ...
}
--
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13 years, 4 months
Drools 5 - Is there an interactive shell for it? And can I define objects in that shell?
by dc tech
I've used Jess before and one of the things that I really found helpful was
it has an interactive shell and the fact that you can model fact definitions
(deftemplate - equivalent to a Java class) and insert facts (via assert) in
the shell directly. That allowed for very easy experimentation without
getting into too much programming. An example is provided below and you can
see that examples like this are easy to experiment with.
Is there an equivalent interactive shell in Drools? Would it allow the
definition and creation of Facts in this fashion?
Or do most of you just cut the java code to experiment?
>> SAMPLE JESS CODE
; This is equivalent to a Java class definition
(deftemplate day_time
(slot time_of_day)
(slot day_of_week)
)
; Rule 1
(defrule have_a_nice_weekend
(day_time (time_of_day EVENING) (day_of_week FRI))
=>
(printout t "Good night. Have a great Weekend")
)
; Rule 2
(defrule tgif
(day_time (time_of_day MORNING) (day_of_week FRI))
=>
(printout t "Good Morning. Aren't you glad its Friday?")
)
; Insert a Fact
(assert (day_time (time_of_day EVENING)(day_of_week FRI)))
; Execute whatever is on the agenda
(run)
13 years, 4 months
Re: [rules-users] KnowledgeAgent exception while trying to deserialize
by John Peterson
Mike,
I believe this is the first time we've tried running anything from
workstation to server. Essentially what happened was that I did the
upgrade of the drools-guvnor.war file and then we fired up the server
following the upgrade. I checked out the server environment to see that
it was using the new version of Guvnor (i.e. new features, like
reporting, etc.) and it checked out fine. I turned it over to my
business partners to start building a new rule app.
I installed the new Guvnor-standalone to my workstation (based on 5.1.1)
and then started building a java application. I used the local copy to
with some dummy rules to verify that my eclipse app was talking to the
local server correctly, which it was. It wasn't until about 2 weeks ago
we tried to switch my eclipse app to talk to the new Guvnor app built by
the business partners that we started seeing the problem. Since we were
working with a new app, post-update, we never tried to connect prior to
the update.
The specific error - "KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage" - seems to imply an
incompatibility between Drools in eclipse and Guvnor from what I've
gathered from Google, mailing lists, etc. It is this issue that is
leading towards the idea of just exporting the repository, installing
the .zip of the Guvnor-standalone I used for my workstation locally to
the server, and then importing the repository.
I hope that helps answer your questions. Thanks for your help so
far....
John
Message: 5
Date: Wed, 5 Jan 2011 14:48:43 +0000
From: Michael Anstis <michael.anstis(a)gmail.com>
Subject: Re: [rules-users] KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage
To: Rules Users List <rules-users(a)lists.jboss.org>
Message-ID:
<AANLkTi=LDDG00Vd98ebetparyRa+sdO-jACkmL9hv4Ox(a)mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hi John,
Hmmm.... one of these types of problem. Nice.
Firstly, the "re-compile\re-package" malarkey is the same as "Build
package"
on the package information screen (or whatever we want to call that
too!)
I am suspicious that something somewhere else has not caused the
problem: If
Guvnor 5.1.1 (presumably) worked OK for a couple of weeks following the
upgrade.....
Was this the first new package created with 5.1.1? Has the server been
restored for some reason (to a backup with 5.0.1)? Have any new packages
been successful?
Thanks,
Mike
On 4 January 2011 18:12, John Peterson
<john.peterson.gv3k(a)statefarm.com>wrote:
> I upgraded Guvnor on the JBoss server by replacing the 5.0.1
> drools-guvnor.war in /server/default/deploy with the drools-guvnor.war
> for 5.1.1. Once we restarted the server, everything seemed to be
> working fine with the 5.1.1 features. It wasn't until a couple weeks
> later when we tried to connect that we started getting the failure
> messages. The package in question is new since the upgrade.
>
> How do I re-compile/re-package the binaries? I'm assuming this is
> different from doing a "Save and validate configuration" or "Build
> package" on the package screen.
>
> Thanks and a Happy New Year to you as well!
>
> John
>
> Message: 2
> Date: Tue, 4 Jan 2011 16:56:52 +0000
> From: Michael Anstis <michael.anstis(a)gmail.com>
> Subject: Re: [rules-users] KnowledgeAgent exception while trying to
> deserialize KnowledgeDefinitionsPackage
> To: Rules Users List <rules-users(a)lists.jboss.org>
> Message-ID:
>
<AANLkTiktBPpALU68Ptbha=gVQ7OYDeMs1Eee+u+TmbFj(a)mail.gmail.com<gVQ7OYDeMs
1Eee%2Bu%2BTmbFj(a)mail.gmail.com>
> >
> Content-Type: text/plain; charset="windows-1252"
>
> Hi John,
>
> AFAIK you need both client (i.e. your IDE) and server versions of
Guvnor
> to be the same.
>
> If you are trying to load a package from an existing (5.0.1) Guvnor
> repositoty I believe you will need to re-compile\re-package the
binaries
> as a number of SerialVersionIds changed.
>
> It wasn't clear from your email whether this is what you have set-up.
>
> Happy New Year!
>
> Mike
>
> 2011/1/4 John Peterson <john.peterson.gv3k(a)statefarm.com>
>
> > This is sort of a repost of an error I?ve been getting, but I
thought
>
> > with the new year, I?d give it another shot.
> >
> > I?ve been getting the following exception in my code:
> >
> > [2010:12:361 09:12:910:debug] KnowledgeAgent rebuilding
KnowledgeBase
> > using ChangeSet
> >
> > [2010:12:361 09:12:972:exception]
> >
> > ***java.lang.RuntimeException*: KnowledgeAgent exception while
trying
> > to deserialize KnowledgeDefinitionsPackage
> >
> >
> >
atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> > **
> > KnowledgeAgentImpl.java:664*)
> >
> >
> >
atorg.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase
> > (*
> > **KnowledgeAgentImpl.java:889*)
> >
> > at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(***
> > KnowledgeAgentImpl.java:704*)
> >
> > at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(***
> > KnowledgeAgentImpl.java:584*)
> >
> > at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> > KnowledgeAgentImpl.java:185*)
> >
> > at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> > KnowledgeAgentImpl.java:168*)
> >
> > at com.agencyawards2.RuleSessionProviderFactory.getSessionFactory(
> > ***RuleSessionProviderFactory.java:95*)
> >
> > at com.agencyawards2.RuleSessionProviderFactory.getProvider(***
> > RuleSessionProviderFactory.java:35*)
> >
> > at com.agencyawards2.RunRules.runRules(***RunRules.java:27*)
> >
> > at com.agencyawards2.DroolsTest.main(***DroolsTest.java:40*)
> >
> > Caused by:*** java.io.StreamCorruptedException*: invalid stream
> > header:7061636B
> >
> > at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
> >
> > at java.io.ObjectInputStream.<init>(Unknown Source)
> >
> > at org.drools.common.DroolsObjectInputStream.<init>(***
> > DroolsObjectInputStream.java:71*)
> >
> > at org.drools.core.util.DroolsStreamUtils.streamIn(***
> > DroolsStreamUtils.java:205*)
> >
> > at org.drools.core.util.DroolsStreamUtils.streamIn(***
> > DroolsStreamUtils.java:174*)
> >
> >
> >
atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> > **
> > KnowledgeAgentImpl.java:653*)
> >
> > ... 9 more
> >
> > I?m running Drools 5.1.1 on my workstation in Eclipse. When I run
it
> > against Guvnor locally using version 5.1.1 installed as the ?Guvnor
> > Standalone? downloaded at the same time as Drools 5.1.1 was
> downloadedfrom the JBoss.org site, it works fine.
> >
> > When I run it against the server, which was from the 5.0.1 ?Guvnor
> > Standalone? installation, but I updated the drools-guvnor.war file
to
> > use the new 5.1.1 version, I get the error listed above. Based on
my
> > research into the ?KnowledgeAgent exception while trying to
> > deserialize KnowledgeDefinitionsPackage? error, it seems to stem
from
> > an incompatibility between versions of Drools.
> >
> > Do I need to install the 5.1.1 Guvnor Standalone to my server to
bring
>
> > the versions into synch, or am I experiencing some other sort of
> problem?
> >
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
13 years, 4 months
Re: [rules-users] KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage
by John Peterson
I upgraded Guvnor on the JBoss server by replacing the 5.0.1
drools-guvnor.war in /server/default/deploy with the drools-guvnor.war
for 5.1.1. Once we restarted the server, everything seemed to be
working fine with the 5.1.1 features. It wasn't until a couple weeks
later when we tried to connect that we started getting the failure
messages. The package in question is new since the upgrade.
How do I re-compile/re-package the binaries? I'm assuming this is
different from doing a "Save and validate configuration" or "Build
package" on the package screen.
Thanks and a Happy New Year to you as well!
John
Message: 2
Date: Tue, 4 Jan 2011 16:56:52 +0000
From: Michael Anstis <michael.anstis(a)gmail.com>
Subject: Re: [rules-users] KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage
To: Rules Users List <rules-users(a)lists.jboss.org>
Message-ID:
<AANLkTiktBPpALU68Ptbha=gVQ7OYDeMs1Eee+u+TmbFj(a)mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"
Hi John,
AFAIK you need both client (i.e. your IDE) and server versions of Guvnor
to be the same.
If you are trying to load a package from an existing (5.0.1) Guvnor
repositoty I believe you will need to re-compile\re-package the binaries
as a number of SerialVersionIds changed.
It wasn't clear from your email whether this is what you have set-up.
Happy New Year!
Mike
2011/1/4 John Peterson <john.peterson.gv3k(a)statefarm.com>
> This is sort of a repost of an error I?ve been getting, but I thought
> with the new year, I?d give it another shot.
>
> I?ve been getting the following exception in my code:
>
> [2010:12:361 09:12:910:debug] KnowledgeAgent rebuilding KnowledgeBase
> using ChangeSet
>
> [2010:12:361 09:12:972:exception]
>
> ***java.lang.RuntimeException*: KnowledgeAgent exception while trying
> to deserialize KnowledgeDefinitionsPackage
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> **
> KnowledgeAgentImpl.java:664*)
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase
> (*
> **KnowledgeAgentImpl.java:889*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(***
> KnowledgeAgentImpl.java:704*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(***
> KnowledgeAgentImpl.java:584*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> KnowledgeAgentImpl.java:185*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> KnowledgeAgentImpl.java:168*)
>
> at com.agencyawards2.RuleSessionProviderFactory.getSessionFactory(
> ***RuleSessionProviderFactory.java:95*)
>
> at com.agencyawards2.RuleSessionProviderFactory.getProvider(***
> RuleSessionProviderFactory.java:35*)
>
> at com.agencyawards2.RunRules.runRules(***RunRules.java:27*)
>
> at com.agencyawards2.DroolsTest.main(***DroolsTest.java:40*)
>
> Caused by:*** java.io.StreamCorruptedException*: invalid stream
> header:7061636B
>
> at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
>
> at java.io.ObjectInputStream.<init>(Unknown Source)
>
> at org.drools.common.DroolsObjectInputStream.<init>(***
> DroolsObjectInputStream.java:71*)
>
> at org.drools.core.util.DroolsStreamUtils.streamIn(***
> DroolsStreamUtils.java:205*)
>
> at org.drools.core.util.DroolsStreamUtils.streamIn(***
> DroolsStreamUtils.java:174*)
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> **
> KnowledgeAgentImpl.java:653*)
>
> ... 9 more
>
> I?m running Drools 5.1.1 on my workstation in Eclipse. When I run it
> against Guvnor locally using version 5.1.1 installed as the ?Guvnor
> Standalone? downloaded at the same time as Drools 5.1.1 was
downloadedfrom the JBoss.org site, it works fine.
>
> When I run it against the server, which was from the 5.0.1 ?Guvnor
> Standalone? installation, but I updated the drools-guvnor.war file to
> use the new 5.1.1 version, I get the error listed above. Based on my
> research into the ?KnowledgeAgent exception while trying to
> deserialize KnowledgeDefinitionsPackage? error, it seems to stem from
> an incompatibility between versions of Drools.
>
> Do I need to install the 5.1.1 Guvnor Standalone to my server to bring
> the versions into synch, or am I experiencing some other sort of
problem?
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
13 years, 4 months
Subject: Drools Planner - Design Suggestions
by Dave Wellman
All,
Maybe someone could offer some smart pointers on how to best setup a drools
planning project where I am trying to optimize ad display.
The project game plan is:
* At any one time there is only one ad in play across all 4K+ sites.
* Ads are scored and ranked by value and potential of generating a click. We
know what ad is the most valuable down to the least.
* Each of the 10,080 minutes in a week is scored by how much traffic is seen
at that minute. (the curve is a predictable 7 peak mountain. Each peak is
variable but around 2:00 PM EST with the biggest peak on Thursday and lowest
on Sunday. Valleys are around 3:00 am. A small hemigog around 10:00 and
12:00 weekdays.
* Each ad is "in play" from between 10 to 60 minutes. Meaning that one ad
is displayed across all properties for at least 10 minutes and a most 60.
* Once a add gets a certain number of clicks it is "100% sold" and then
removed from the queue. If an ad is sold before the 60 minutes is up it is
removed and the next ad in line take its place. If it is under 10 minutes
it will stay in play and continue to be "sold" until the first 10 minutes is
up.
Is drools scheduler the right tool for this job or could you suggest
something better?
Thank you for any insights you all have.
13 years, 4 months
Error in Guvnor - Incompatible magic value
by sunkara007
I created new JAR file using my domain Objects in Eclipse().
When I upload my JAR file in Guvnor and then If I click on Save and Validate
Configuration I am getting the following ERROR.
ERROR [STDERR] Caused by: java.lang.ClassFormatError: Incompatible magic
value 1885430635 in class file com/otx/eag/
I felt its Version incompatible so I created JAR with JDK-6.0,5.0,1.4, but
it is showing same ERROR for all the versions.
I can not able to create the Rules using my domain Objects.
Please Help me, How to resolve this.
Thanks in Advance.
--
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13 years, 4 months
