[rules-users] expectation for -Ddrools.dump.dir to show DRL error context ..
Wolfgang Laun
wolfgang.laun at gmail.com
Mon Nov 19 14:41:37 EST 2012
On 19 November 2012 19:54, Cotton, Ben <Ben.Cotton at morganstanley.com> wrote:
> THANKS WOLFGANG!! :-)
>
I'll print, cut and frame this and hang it on my wall ;-)
Thank you!
Wolfgang
>
>
>
>
>
>
> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org [mailto:
> rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang Laun
> Sent: Monday, November 19, 2012 1:37 PM
> To: Rules Users List
> Subject: Re: [rules-users] expectation for -Ddrools.dump.dir to show DRL
> error context ..
>
> I'm not quite sure that I've been aboard your train of thoughts.
>
> There are compilations where you feed the Drools Builder with non-DRL
> files, which will induce it to produce a DRL and compile that,
> automatically. This is where the DumpDirOption should produce the
> intermediary result in that directory.
>
> If you call some mechanism using XSL and DRT to generate DRL text, which
> you then pass to the compiler, you've taken the responsibility to handle
> this DRL text. If there is a problem, you might consider writing the DRL
> text to a file and call the builder with this file as a DRL resource.
>
> Note: All of the above assumes I've outguessed your procedure correctly ;-)
>
> Cheers
> Wolfgang
>
>
>
> On 19/11/2012, Cotton, Ben <Ben.Cotton at morganstanley.com> wrote:
> > Oh no. Ouch!
> >
> > So the [ERR] messages I'm getting -- w/ explicit line numbers being
> > produced (wrt to some internal DROOLS in-memory DRL representation) --
> > cannot in any way be x-referenced with an externalized view of the
> > DROOLS in-memory DRL representation?
> >
> > Thanks for the reply Wolfgang (as always). But this seems like really
> > bad news wrt to a newbie needing to debug their DROOLs DRL (generated
> > from
> > template) code.
> >
> > If the (generated from template) internal DROOLs DRL representation
> > can't be externalized w/ any sort of view via the DROOLs API, Do you
> > have any recommendation for a how a developer could "look under the
> > skirt" at this part of DROOLs runtime?
> >
> >
> > -----Original Message-----
> > From: rules-users-bounces at lists.jboss.org
> > [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang
> > Laun
> > Sent: Monday, November 19, 2012 1:12 PM
> > To: Rules Users List
> > Subject: Re: [rules-users] expectation for -Ddrools.dump.dir to show
> > DRL error context ..
> >
> > For ResourceType.DRL, the DumpDirOption isn't going to help. It is
> > provided for compilations where the source is "pre-DRL", such as
> decision tables.
> >
> > -W
> >
> > On 19/11/2012, Cotton, Ben <Ben.Cotton at morganstanley.com> wrote:
> >> Also, FYI, I tried to use the following explicit DROOLs code to see
> >> if I could gain a view of the staged .DRL generation. No luck, my
> >> $DroolsDumpDir/ directory has nothing any it.
> >>
> >> Do I need to do some kind of
> >>
> >> File droolsDumpDir = new File( "C:/MSDE/cottoben/DroolsDumpDir/" );
> >> SingleValueKnowledgeBuilderOption ddOption =
> >> org.drools.builder.conf.DumpDirOption.get( droolsDumpDir );
> >> KnowledgeBuilderConfiguration kbConfig =
> >> KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
> >> kbConfig.setOption( ddOption );
> >> KnowledgeBuilder kbuilder =
> >> KnowledgeBuilderFactory.newKnowledgeBuilder( kbConfig );
> >>
> >> kbuilder.add(new ByteArrayResource(drl.getBytes()),
> >> ResourceType.DRL);
> >>
> >> //compilation errors?
> >> if (kbuilder.hasErrors()) {
> >> System.out.println("Error compiling resources:");
> >> Iterator<KnowledgeBuilderError> errors =
> >> kbuilder.getErrors().iterator();
> >> while (errors.hasNext()) {
> >> System.out.println("\t" + errors.next().getMessage());
> >> }
> >> throw new IllegalStateException("Error compiling
> resources");
> >> }
> >>
> >> //print out the generated .DRL
> >> System.out.println(drl);
> >>
> >> From: rules-users-bounces at lists.jboss.org
> >> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Cotton, Ben
> >> (ISGT)
> >> Sent: Monday, November 19, 2012 11:49 AM
> >> To: rules-users at lists.jboss.org
> >> Subject: [rules-users] expectation for -Ddrools.dump.dir to show DRL
> >> error context ..
> >>
> >> Hi,
> >>
> >> I thought this worked for me at some point, but, I now seem to have
> >> lost my ability to get any debuggable DRL error contexts via the
> >> -Ddrools.dump.dir property.
> >>
> >> Here is my command line, that simply borrows from the DROOLs sample
> >> package's Cheese.xls SpreadsheetCompiler example , to produce a .DRL
> >> from an (.XLS, .DRT) input pair:
> >>
> >> java
> >> com.ms.fast.triclear.eligibility.rules.GenerateDRLfromEligibilityRule
> >> s
> >> RepoViaDRT
> >> \
> >> -Ddrools.dump.dir=./DroolsDumpDir \
> >>
> >> ../main/packages/com/ms/fast/triclear/eligibility/rules/IRD_PRODUCT_R
> >> U
> >> LES_FEED_TO_DRT_Template-BASIS.xls
> >> \
> >>
> >>
> ../main/packages/com/ms/fast/triclear/eligibility/rules/IRD_PRODUCT_RULES_TEMPLATE-BASIS.drt
> >> \
> >> 2>&1 | grep -v Picked | \
> >> tee
> >> ../main/packages/com/ms/fast/triclear/eligibility/rules/IRD_PRODUCT_R
> >> U
> >> LES=RENDERED.drl
> >>
> >> This command line produces the following errors:
> >>
> >> Error compiling resources:
> >> [ERR 102] Line 923:0 mismatched input ''
> >> [ERR 101] Line 8:60 no viable alternative at input '"LCH US"'
> >> in rule "IRD_PRODUCT_RULE_24"
> >> [ERR 101] Line 46:60 no viable alternative at input '"LCH EU.
> >> SCM"'
> >> in rule "IRD_PRODUCT_RULE_23"
> >> Parser returned a null Package Exception in thread "main"
> >> java.lang.IllegalStateException: Error compiling resources
> >> at
> >>
> com.ms.fast.triclear.eligibility.rules.GenerateDRLfromEligibilityRulesRepoViaDRT.buildKBase(GenerateDRLfromEligibilityRulesRepoViaDRT.java:93)
> >> at
> >>
> com.ms.fast.triclear.eligibility.rules.GenerateDRLfromEligibilityRulesRepoViaDRT.execute(GenerateDRLfromEligibilityRulesRepoViaDRT.java:50)
> >> at
> >> com.ms.fast.triclear.eligibility.rules.GenerateDRLfromEligibilityRule
> >> s
> >> RepoViaDRT.main(GenerateDRLfromEligibilityRulesRepoViaDRT.java:44)
> >>
> >> Unfortunately, my ./DroolsDumpDir/ directory contents are completely
> >> empty.
> >> I was hopeful it might contain a staged .DRL context from which I
> >> could more easily debug my roadblock.
> >>
> >> Is there more that I have to do, beyond just passing
> >> -Ddrools.dump.dir=./DroolsDumpDir on the command line?
> >>
> >>
> >> Ben D Cotton III
> >> Morgan Stanley & Co.
> >> OTC Derivatives Clearing Technology
> >> 1221 AOTA Rockefeller Ctr - Flr 27
> >> New York, NY 10020
> >> (212)762.9094
> >> ben.cotton at ms.com<mailto:ben.cotton at ms.com>
> >>
> >>
> >>
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> >>
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> --------------------------------------------------------------------------------
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> NOTICE: Morgan Stanley is not acting as a municipal advisor and the
> opinions or views contained herein are not intended to be, and do not
> constitute, advice within the meaning of Section 975 of the Dodd-Frank Wall
> Street Reform and Consumer Protection Act. If you have received this
> communication in error, please destroy all electronic and paper copies and
> notify the sender immediately. Mistransmission is not intended to waive
> confidentiality or privilege. Morgan Stanley reserves the right, to the
> extent permitted under applicable law, to monitor electronic
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> link: http://www.morganstanley.com/disclaimers. If you cannot access
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