Re: [rules-users] BRMS 4.0.2 issues

I'm pretty new to Drools and I think the BRMS in 4.0.2 is great. I've encountered a few issues that I wanted to bring up. I can put some or all of these into JIRA if that's best, but I wanted to bring them up here first in case it's just user error on my part. === Issue #1 === For our project we want to use a DSL in the BRMS. The error messages that are shown when you click "Validate" when editing a business rule that uses a DSL in the BRMS are not user-friendly at all. If I make a small typo and misspell the name of an attribute (a very likely thing for a BRMS user to do), and click the Validate button, the error I get back is a big stack trace starting with "java.lang.RuntimeException: SNO: Conversion failed at org.codehaus.janino.UnitCompiler.numericPromotion(UnitCompiler.java) at …" Nowhere in that stack trace is anything that gives a hint that the error is just a typo of an attribute name. Contrast this with the rather helpful error message I get if I make the same typo when editing a DRL rule: "Unable to create Field Extractor for 'overtimHours'". (The error is that I misspelled overtimeHours). Is it possible to get the same type of helpful error messages on validation when editing a DSL rule? Just to be clear, I'm talking about the rules that use the DSL (which I want our business users to edit), not the DSL grammar itself (which will be modified by developers). === Issue #2 === The BRMS doesn't allow rules to have an apostrophe character in them. I stumbled into this one when I attempted to import a .drl file where the first rule was named "Set employee's minimum wage". This .drl file works fine outside the BRMS. Here's the first few lines of the rule file: -------------------------- package com.example import com.example.Employee; import function com.example.RuleHelper.logNumber; expander Wage.dsl rule "Set employee's minimum wage" when -------------------------- When I try to import it into the BRMS I got a very strange error back (including the <pre> tags): "Unable to import into the package. [<pre>Unable to process import: javax.jcr.RepositoryException: failed to resolve path Set employee's minimum wage relative to /drools:repository/drools:package_area/com.soi/assets: Invalid name: Set employee's minimum wage: Invalid name: Set employee's minimum wage</pre>]". Later when I tried to manually enter the rules in that file through the BRMS I figured out the real cause was the ' character in the rule name. I was unable to create a rule with an apostrophe in the name. The error stack trace says "An error occurred executing the action. Details com.google.gwt.user.client.rpc.SerializableException: javax.jcr.RepositoryException: failed to resolve path Set employee's minimum wage relative to /drools:repository/drools:package_area/com.example/assets: Invalid name: Set employee's minimum wage: Invalid name: Set employee's minimum wage at org.drools.brms.server.ServiceImplementation.createNewRule(ServiceImplementation.java:166)..." === Issue #3 === I've developed a DSL for my project, and as recommended in the documentation (section 6.7.3) I renamed my .drl files to .dslr. When I started to use the BRMS, I was not able to import a file with a .dslr extension. Renaming the file to .drl worked around the problem. I think the BRMS should allow importing of .dslr files. === Issue #4 === This one is pretty minor. When creating a new rule asset through the BRMS using the type "Business rule using a DSL (text editor)", the initial description you put in is ignored. You always get the description "A dsl is a language mapping from a domain specific language to the rule language." As I said, I'm happy to create JIRA tickets for all of the above if that's what you'd like. I'm pretty new to Drools, so I thought I'd post the issues here first for feedback. Thanks, Phil _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users