6:28 a.m.
hey wolfgang,
thanks a lot for your valuable and prompt help. it worked for me and i'm
able to run the rule engine with a spread sheet rule.
for this, i'll be grateful to you.
event resolved:
actually "event" is imported and declared in the rule. the problem is,
in the then part when i referred the event object i forgot to mention it
with a preceding "$" symbol. and that was the culprit. when i was going
through the documentation, it said the "$" symbol is not mandatory and
it's optional.
now i've found that, using the "$" symbol is optional. buf if you use it
on a variable declaration, it's mandatory that you've to specify on
further reference of that variable. today's findings... :-)
spreadsheet dependency:
actually it worked for me without implementing any dependency in the
spreadsheet. probably i should educate myself in spreadsheet stuffs.
thanks once again.
_ _ _ _ |.
| | ||_|| (_||| \/
On 01/11/2011 05:21 PM, Wolfgang Laun wrote:
2011/1/11 Murali Venugopal <murali.venugopal(a)sifycorp.com
<mailto:murali.venugopal@sifycorp.com>>
Hi Wolffgang,
Thanks for your quick response. I did as you say. now my rule file
when generated from excel sheet and printed in console looks like
this.
package alertRouting;
#generated from Decision Table
import com.sify.beacon.events.RouteEvent;
import com.sify.beacon.events.trapevent.Varbind;
#From row number: 10
rule "210.210.122.100 GroupA"
when
$event : RouteEvent(nodeIp == "210.210.122.100")
$varbind : Varbind(oid == "1.3.6.1.2.1.2.2.1.1" && value
== "5")
from $event.varbindings
then
event.setGroup("GroupA");
System.out.println("set to Group A");
end
it seems that the "from" clause is in the next line as a separate
condition. so, drools have considered it as a separate condition.
DRL is free form, so line breaks don't matter.
the error message is
error java.lang.RuntimeException: Rule Compilation error : [Rule
name='210.210.122.100 GroupA']
alertRouting/Rule_210_210_122_100_GroupA_0.java (7:397) :
event cannot be resolved
"event" is the culprit. Now where is this "event"? Has it been
declared? Where? Perhaps a typo?...
also, i don't understand about implementing the dependency to the
cell in left. i tried logical, mathematical dependency conditions.
sorry for my ignorance.
This requires spreadsheet functions, e.g.
=IF( D12="","","X" )
would be in E12. The cell reference is relative, so copying it dowm
automatically changes D12 to D13, etc.
-W
please help me resolve this issue.
_ _ _ _ |.
| | ||_|| (_||| \/
On 01/11/2011 01:56 PM, Wolfgang Laun wrote:
> There is a limit to what can be implemented using decision
> tables. Some constructs are possible with hacks.
>
> In your case, you cannot have constraints with parameters and
> "from" in the same column. You need 2 adjacent columns.
>
> CONDITION
> $varbind : Varbind
> oid == $1 && value == $2
> the pattern and constraints
> ".1.3.6.1.2.1.2.2.1.1.0","5"
> ----------------------------------------------------------------
> CONDITION
>
> from $event.varbindings
> the from clause
> x
> ------------------------------------------------------------------
>
> Note the blank cell below CONDITION. The 'x' triggers the
> insertion of the from clause. (It should be possible to implement
> the dependency on the cell to the left by a simple spreadsheet
> formula.)
>
> -W
>
>
>
>
> 2011/1/11 Murali Venugopal <murali.venugopal(a)sifycorp.com
> <mailto:murali.venugopal@sifycorp.com>>
> >
> > hi,
> >
> > i'm facing a problem with decision tables. i've got a .drl
> working file. but when i happen to take that into a .xls file (
> decision table ) it throws some errors.
> >
> > my actual rule in .drl file has got something like this.
> >
> > when
> >
> > $event : RouteEvent( nodeIp == "192.168.1.12 )
> > $varbind : Varbind ( oid == ".1.3.6.1.2.1.2.2.1.1.0"
&&
> value == "5" ) from $event.varbindings
> >
> > then
> >
> > System.out.println("some text")
> >
> > here in my decision table, my first cell would have the first
> condition
> >
> > $event : RouteEvent
> > nodeIp == "$param"
> > that is, i've to omit my "(" and ")" braces.
> >
> > so now, my second condition is
> >
> > $varbind : Varbind
> > ( oid == "$1" && value == "$2" ) from
$event.varbindings
> >
> > here i don't know how to omit the "(" and ")"
braces. or should
> i add and other layer of those braces.
> >
> > anyway, the decision table is not working, where as my rule
> file does.
> >
> > the error message is
> >
> > error java.lang.RuntimeException: [10,55]: [ERR 102] Line
> 10:55 mismatched input 'FROM' expecting ')' in rule
> "210.210.122.100 GroupA" in pattern Varbind[10,77]: [ERR 102]
> Line 10:77 mismatched input ')' expecting 'then' in rule
> "210.210.122.100 GroupA"
> >
> > my doubt is,
> > in the first case all my condition expression is contained with
> in braces. where as in second case, it's not. so how do i've to
> handle this. do i've have to omit the braces in the second case
> or not.
> >
> > please help me. i've been struggling to solve this error. also,
> i couldn't find references in the documentation.
> > thanks in advace.
> >
> > _ _ _ _ |.
> > | | ||_|| (_||| \/
> >
> > Whoever wants to be happy, let him be so: of tomorrow there's
> no knowing
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org>
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
>
>
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