[jboss-jira] [JBoss JIRA] (DROOLS-4750) DrlParser fails to parse str[endsWith] operator

[Mario Fusco (Jira)]

     [ https://issues.jboss.org/browse/DROOLS-4750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-4750.
---------------------------------
    Resolution: Explained


What the knowledge builder does at some point is invoking this

{code}
new EvaluatorRegistry(this.getClass().getClassLoader());
{code}

which has the side-effect of registering the custom operators like 'str' into the parser. If you add that line as first statement of your first test you will see that it will also succeed. Note however that the DRLParser is an internal class that is not part of our public API and not intended for direct access by our end-users. For this reason I don't think that we should change it in any way to make it work also without a knowledge builder.

> DrlParser fails to parse str[endsWith] operator
> -----------------------------------------------
>
>                 Key: DROOLS-4750
>                 URL: https://issues.jboss.org/browse/DROOLS-4750
>             Project: Drools
>          Issue Type: Bug
>            Reporter: Alberto Fanjul Alonso
>            Assignee: Mario Fusco
>            Priority: Major
>         Attachments: reproducer.zip
>
>
> In documentation 
> https://docs.jboss.org/drools/release/7.23.0.Final/drools-docs/html_single/#drl-rules-WHEN-con_drl-rules
> operator str[endsWith] is supposed to be supported, it it is not working.
> Fails with:
> {code:java}
> java.lang.Exception: Rule contains errors![[5,19]: [ERR 102] Line 5:19 mismatched input 'str' in rule "pnr first name end with"]
> 	at com.mdw.bzr.drools_reproducer.StrWithFailOnFirstCompilationErrorReproducerTest.parse(StrWithFailOnFirstCompilationErrorReproducerTest.java:58)
> 	at com.mdw.bzr.drools_reproducer.StrWithFailOnFirstCompilationErrorReproducerTest._03_parseStrWith(StrWithFailOnFirstCompilationErrorReproducerTest.java:74)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> {code}



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