[rules-users] Problem loading DRL from DSL?
kissro at lidp.com
kissro at lidp.com
Fri Sep 14 10:11:30 EDT 2007
Is there a bug with drools when you try to use a dsl and drl? I've read
several post where people seem to be getting the same errors as I am.
My drl looks like this:
package com.insurance
expander underwriting.dsl
rule "Low Premium"
when
There is a policy
- for a male
- with a premium less than 50.00
then
Accept the policy;
end
I have this code to read the drl and associated dsl and build a package:
String drl = "/underwriting.drl";
String dsl = "/underwriting.dsl";
PackageBuilder builder = new PackageBuilder();
InputStreamReader drlInput = new
InputStreamReader(InsuranceExample.class.getResourceAsStream(drl));
InputStreamReader dslInput = new
InputStreamReader(InsuranceExample.class.getResourceAsStream(dsl));
builder.addPackageFromDrl(drlInput, dslInput);
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( builder.getPackage() );
When I run the code I get a 'ExpanderException'
Exception in thread "main" org.drools.rule.InvalidRulePackage:
org.drools.lang.ExpanderException at 157aa53
org.drools.lang.ExpanderException at 6f50a8
org.drools.lang.ExpanderException at 187814
org.drools.lang.ExpanderException at 73a7ab
org.drools.lang.ExpanderException at 104faf8
org.drools.lang.ExpanderException at 1f8c6df
org.drools.lang.ExpanderException at 1c86be5
org.drools.lang.ExpanderException at 123b25c
org.drools.lang.ExpanderException at 92bbba
org.drools.lang.ExpanderException at 162dbb6
org.drools.lang.ExpanderException at 146c1d4
org.drools.lang.ExpanderException at 5f8172
org.drools.lang.ExpanderException at 2ba11b
org.drools.lang.ExpanderException at 5e179a
org.drools.lang.ExpanderException at 15fadcf
at org.drools.rule.Package.checkValidity(Package.java:408)
at org.drools.common.AbstractRuleBase.addPackage
(AbstractRuleBase.java:288)
Can someone tell me what I'm doing wrong and what the correct code would
be for reading a drl/dsl and building a package and rulebase? Does
building drl rules from a dsl not work in drools 4.0.1?
Thanks,
Rod
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