Drools 5.1.1 : Error reporting issue in PackageBuilder
by arjun dhar
Hi,
I was trying out the new stable version of Drools and on faulty DRL files I was getting:
Exception in thread "main" java.lang.ArrayStoreException
at java.lang.System.arraycopy(Native Method)
at java.util.ArrayList.toArray(ArrayList.java:306)
at org.drools.compiler.PackageBuilder.getErrors(PackageBuilder.java:1274)
at org.drools.builder.impl.KnowledgeBuilderImpl.getErrors(KnowledgeBuilderImpl.java:70)
at com.arjun.SetGame.main(SetGame.java:18)
The actual Error being:: (See Reference DRL at the end of this post)
[Unable to resolve ObjectType 'MockBoolean' : [Rule name='show_time']
, Incorrect number of arguments for interval timer 'int 5s 2m']
I'd assume it be better to have an Exception with the root cause, than a faulty Error trapping system, that is trapping a System generated Exception. Is this a bug in "PackageBuilder : Line 1274"?
Reference DRL:
package com.arjun
rule show_time
timer (int 5s 2m)
when
MockBoolean(value == true)
then
System.out.println("Hey");
end
15 years, 4 months
Migrate from JBRMS 4.0.7 to Guvnor 5.1
by smolnij
Hello all
I need to migrate from 4.0.7 drools to 5.1, could you please give some
advices and links?
We have drools JBRMS 4.0.7 app with lots of rules, persisted in Oracle. We
haven't any .drl files for these rules. I've tried to export these rules via
export feature from JBRMS 4 and then import the derived XML via import
feature in Guvnor 5, but I get the following error:
17:56:55,365 INFO [STDOUT] ERROR 16-03 17:56:55,361
(RulesRepository.java:importRulesRepositoryFromStream:1073) illegal
node name: {http://www.jcp.org/jcr/sv/1.0}node
javax.jcr.InvalidSerializedDataException: illegal node name:
{http://www.jcp.org/jcr/sv/1.0}node
at
org.apache.jackrabbit.core.xml.SysViewImportHandler.startElement(SysViewImportHandler.java:141)
at
org.apache.jackrabbit.core.xml.ImportHandler.startElement(ImportHandler.java:169)
at
org.apache.jackrabbit.commons.xml.DefaultContentHandler.startElement(DefaultContentHandler.java:161)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
Is there some way how we can transfer the rules from JBRMS to Guvnor? Does
the Guvnor has another rules format, so it can't import from JBRMS XML? Is
there some specs about differences, so I would be able to write the
converter? Or is there some already published converter?
Would it make sense to export the rules via JCR API from old JBRM JCR (1.3)
and then import it to new JCR repo created by Guvnor?
How we can upgrade the drools version without loosing our already created
rules?
--
View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Migrate-from-JBRMS-4-...
Sent from the Drools - User mailing list archive at Nabble.com.
15 years, 4 months
Question regarding drools example
by DECOUX Yannick
Hi,
I'm new to drools and i'm trying to learn through the drools examples.
Inside the file org.drools.examples.process.order.logging.drl I see this :
workItem: WorkItemImpl( state == WorkItemImpl.PENDING ) from workItemNodeInstance.getWorkItem()
The PENDING constant seems to be missing in the org.drools.process.instance.impl.WorkItemImpl class
Am I missing something ?
Thanks
Yannick
15 years, 4 months
Call for Paper: RuleML-2011@IJCAI Doctoral Consortium and Poster Session
by Adrian Paschke
=====================================================================
Open Calls
for
RuleML-2011 Doctoral Consortium
&
RuleML-2011 Posters
http://www.defeasible.org/ruleml2011/
Submission deadline: April 11, 2011
=====================================================================
RuleML 2011 Doctoral Consortium
-------------------------------
The RuleML 2011 doctoral consortium is a new initiative of the International
Symposium on Rules, RuleML, to attract and promote Ph.D. research in the
area of Rules and Markup Languages. The doctoral symposium offers to
students a close contact with leading experts on the field, as well as the
opportunity to present and discuss their ideas in a dynamic and friendly
setting. The accepted thesis descriptions will be presented to an interested
audience and subject to discussion with a panel of senior researchers, and
we expect submissions on any of this year's RuleML topics:
- Rules and Automated Reasoning
- Logic Programming and Non-monotonic Reasoning
- Rules, Agents and Norms
- Rule-Based Distributed/Multi-Agent Systems
- Rule-Based Policies, Reputation and Trust
- Rule-based Event Processing and Reaction Rules
- Fuzzy Rules and Uncertainty
- Rule Transformation and Extraction
- Vocabularies, Ontologies, and Business rules
Accepted submissions will be published in internal proceedings and later on
published in CEUR Workshop Proceedings volume of RuleML.
Submission
Students are invited to submit an original description of their work
addressing the following aspects:
A clear formulation of the research question.
An identification of the significant problems in the field of research.
An outline of the current knowledge of the problem domain, as well as the
state of existing solutions.
A presentation of any preliminary ideas, the proposed approach and the
results achieved so far.
A sketch of the applied research methodology.
A description of the Ph.D. project's contribution to the problem solution.
A discussion of how the suggested solution is different, new, or better as
compared to existing approaches to the problem.
Thesis descriptions are limited to 8 pages in English using LNCS format
(http://www.springer.de/comp/lncs/authors.html)
and submitted electronically in PDF format jointly with a maximum 5 page CV.
Please submit to:
http://www.easychair.org/conferences/?conf=ruleml2011consortium
Important Dates
- Paper submission: April 11, 2011 (11:59PM, UTC-12)
- Notification of acceptance/rejection: May 2, 2011
- Camera-ready copy due: May 20, 2011
Chairs
- Carlos Damásio, Universidade Nova de Lisboa
- Alun Preece, Cardiff University
- Umberto Straccia, ISTI-CNR
Program Committee
The program committee of RuleML 2011 doctoral consortium coincides with the
one of RuleML 2011 @ IJCAI to promote reviewing and feedback from the
leading experts on rules and semantic technology.
RuleML-2011 Posters
--------------------
We invite participants to submit a poster to the RuleML-2011@IJCAI
conference. Posters provide an opportunity to receive direct feedback from
the community. Poster papers limited to 15 pages in English and must be
formatted in LNCS format (http://www.springer.de/comp/lncs/authors.html).
Please submit to:
http://www.easychair.org/conferences/?conf=ruleml2011consortium
Accepted submissions will be published in CEUR Workshop Proceedings volume
of RuleML. Participants will be able to display their poster during the
poster session of the RuleML-2011 conference and give a short presentation
about their poster.
Important Dates
- Paper submission: April 11, 2011 (11:59PM, UTC-12)
- Notification of acceptance/rejection: May 2, 2011
- Camera-ready copy due: May 20, 2011
Chairs
- Jeff Pan, University of Aberdeen, UK
- Monica Palmirani, University of Bologna, Italy
Program Committee
The program committee of RuleML 2011 poster consortium coincides with the
one of RuleML 2011 @ IJCAI.
15 years, 4 months
how to ensure that one rule only is executed once?
by yong zhao
Hi
I just try to uses jboss rules in our projects. I met a question. for example
package sample
rule "rule 1"
when
$o:Order (amount>100 and amount<200);
then
$o.setPrice($o.getPrice()-10);
end
rule "rule 2"
when
$o:Order (amount>200);
then
$o.setPrice($o.getPrice()-20);
end
if the fact , order's amount is 210. then the rule2 will be executed, then the
rule1 will be fired . I want to stop the session once some rule is executed or
how to control the rule flow.
thanks in advance
-Yong
15 years, 4 months
drools.rulebase.conf or rulebase.conf?
by ljnelson
>From looking at the source code, it appears that the configuration file that
is scanned for by KnowledgeBaseConfiguration is named rulebase.conf, not
drools.rulebase.conf as mentioned in countless articles.
Furthermore, a find/grep over the source code does not turn up any
"drools.rulebase.conf" string.
I assume, therefore, that this is a documentation bug, and that the file
that is actually sought is named rulebase.conf, and that's where I should
put the properties that are named by the KnowledgeBaseConfiguration Javadoc?
Thanks,
Laird
--
View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/drools-rulebase-conf-...
Sent from the Drools - User mailing list archive at Nabble.com.
15 years, 4 months
Drools mvel strict type
by Sébastien Raickman
Hi all,
Do someone knows how to disable strict type from the rule itself?
Or the way to cast segments in (String []) in the following rule:
dialect "mvel"
when
$m : Parent();
$mess : Message() from $m.message;
$seg : String[]() from $m.*segments*;
my error at deployment of drools-server is :
*unqualified type in strict mode for: segments]*
Thanks in advance
Seb
15 years, 4 months
