3.1-M1 - Can't get rules to build
by Tom Gonzalez
I am attempting to convert our application to use drools 3.1.M from
current use of 3.0.4.
I downloaded the binaries posted and am getting this very basic
exception when building our rules.
[java] Feb 19, 2007 5:21:25 PM
com.nortel.connect.rbuilder.RulePackage addR
ulesFromDrlFile
[java] INFO: adding Rules from: CBMRules.drl (with associated
DSL)
[java] Exception in thread "main" java.lang.NoSuchFieldError:
recognizer
[java] at
org.drools.lang.DRLLexer$DFA18.<init>(DRLLexer.java:3914)
[java] at org.drools.lang.DRLLexer.<init>(DRLLexer.java:3565)
[java] at
org.drools.compiler.DrlParser.getParser(DrlParser.java:78)
[java] at
org.drools.compiler.DrlParser.parse(DrlParser.java:110)
[java] at
org.drools.compiler.DrlParser.parse(DrlParser.java:96)
[java] at
com.nortel.connect.rbuilder.RulePackage.addRulesFromDrlFile(R
ulePackage.java:219)
Any suggestions for getting past this?
Thanks,
Tom G
18 years, 8 months
Bugs/Problems with 3.1.0M1
by Wolfgang Betz
Hello to all,
i would like to address some problems with 3.1.0M1:
I've noticed that:
- using eclipse 3.2.2, and JPDL Plugin 3.1.0 alpha3 a program using rules does
not stop at breakpoints in rules (RHS) - ok, its alpha, maybe i'm missing
something
- throws an internal NPE at parsing rules havin NO_LOOP set (even if parse
result caching is on)
- comparisons like "bpairl : BagsPerAirline(nrOfBusinessBags >= (500 + 333))"
throw NPE if field is null - maybe adressed by
http://jira.jboss.com/jira/browse/JBRULES-627
- when
BagsPerAirline(nrOfBusinessBags >= (500 + 333)) //gives all >= 833 BUT
BagsPerAirline(nrOfBusinessBags >= 500 + 333) //all >= 500!!!!!
- when
c : Flight(flightId == 1 | == (1+1))
// throws java.lang.UnsupportedOperationException:
// does not support method call
// isAllowed(Object object, InternalWorkingMemory workingMemoiry)
// at
// org.drools.rule.ReturnValueRestriction.
// isAllowed(ReturnValueRestriction.java:137)
Thanx a lot for the "from" extension :-)
18 years, 9 months
mismatched token error.
by Kolla, Sandeep
Hi All,
This is the DRL
package com.gs.fw.intauto.entitle.rule.facts
import com.gs.fw.intauto.entitle.rule.facts.PersonFacts;
expander entitlement.dsl
rule "Black Berry Rule 1"
salience 1
when
Employee with attribs
- Type is 'Worker'
- Department is 'Internal Automation'
then
Log : "Entitled"
This is The DSL
[when]Employee with attribs=PersonFacts()
[when]- Type is '{type}'=type=='{type}'
[when]- Department is '{department}'=department=='{department}'
[when]- Division is '{division}'=division=='{division}'
[when]- City is '{city}'=city=='{city}'
[when]- User is '{kebrosId}'=kebrosId=='{kebrosId}'
[then]Log : "{message}"=System.out.println("{message}");
I am getting the following error
org.drools.rule.InvalidRulePackage: unknown:1:34 mismatched token:
[@12,34:37='rule',<30>,1:34]; expecting type ID
unknown:2:33 mismatched token: [@28,79:82='rule',<30>,2:33]; expecting
type ID
unknown:9:0 Unable to expand: Employee with attribs. Due to Expression
was not expandable: Employee with attribs
unknown:10:0 Unable to expand: - Type is 'Worker'. Due to Expression
was not expandable: - Type is 'Worker'
unknown:11:0 Unable to expand: - Department is 'Internal Automation'.
Due to Expression was not expandable: - Department is 'Internal
Automation'
unknown:10:2 Unexpected token ','
unknown:16:0 Unable to expand: Log : "Entitled". Due to Expression was
not expandable: Log : "Entitled"
unknown:23:0 Unable to expand: Employee with attribs. Due to Expression
was not expandable: Employee with attribs
unknown:26:0 Unable to expand: - Division is 'Financial Division'. Due
to Expression was not expandable: - Division is 'Financial Division'
unknown:27:0 Unable to expand: - City is 'New York'. Due to Expression
was not expandable: - City is 'New York'
unknown:24:2 Unexpected token ','
unknown:30:0 Unable to expand: Log : "Not Entitled". Due to Expression
was not expandable: Log : "Not Entitled"
I don't see any thing wrong with the DRL and DSL
Can someone help mw with this..
Thanks in advance
Sandeep.
18 years, 10 months
working on grammar
by Michael Neale
I have package attributes working, but got a wierd error with the grammar
accessing a field that is missing from an exception - did someone forget to
check in the latest DRL.g?
18 years, 10 months
Fwd: [rules-users] svn
by Michael Neale
I believe this was intended for dev...
---------- Forwarded message ----------
From: Mark Proctor <mproctor(a)redhat.com>
Date: Apr 24, 2007 2:07 PM
Subject: [rules-users] svn
To: rules Users List <rules-users(a)lists.jboss.org>
I'm just doing a big refactor, please don't commit anything to trunk.
Thanks
Mark
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18 years, 10 months
Re: [rules-users] Pre Compiling
by Michael Neale
I think we should have some dirt simple helper methods in drools-core for
deserializing:
something like "BinaryRuleBaseLoader.load(InputStream)" or similar.
Could also take packages, etc, and have a very simple built in cache. We
could have helper ones that grab it from JNDI etc (and perhaps some example
code on how to bind a binary rulebase to JNDI and how to update etc for
deployment). Just some ideas for simple ways to deal with deployment that
need no dependencies.
On 4/24/07, Mark Proctor <mproctor(a)codehaus.org> wrote:
>
> just create a package or a rulebsae and serialise it somewhere. RuleBase
> then has a method to create a new working memory from an input stream, i.e.
> the serialised object.
>
> Mark
> Márcio Moraes wrote:
>
> Hi all,
>
> I've just discovered production machine does not have a compiler, so i
> thought pre-compiling my rules.
>
> How can i do that? Is there some ant task?
>
> Thanks,
>
> Márcio Moraes
>
> ------------------------------
>
> _______________________________________________
> rules-users mailing list
> rules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
18 years, 10 months
maven assembler
by Michael Neale
BRMS is now added as a seperate file (just the war).
Its a largish file (~20 meg it will be, all told) - so one other idea is a
seperate download.
Thoughts?
Michael.
PS I was trying to make a way to put dependencies in a seperate "lib"
folder, but maven didn't recognise the <dependencySets> tag - just thought
it would make for a neater distro for those not using maven.
Michael.
18 years, 10 months
workingmemory and dispose()
by Mark Proctor
currently working memories are auto garbage collected once you null
them, by using a weak hashmap in the RuleBase. I'm currently adding
async methods to the working memory, which means that the weak hashmap
no longer works. So I'm thinking of using a normal hashmap, which means
people MUST call workingMemory.dispose() or they will get memory leaks,
are people ok with that? I now have ruleBase.newStatelessSession which
won't adding the session to the Map, to avoid having to call dispose()
for stateless sessions.
Mark
18 years, 10 months
