[jboss-jira] [JBoss JIRA] (JBRULES-3349) Not possible to use Janino to compile templates

[Adar Dembo (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12660025#comment-12660025 ] 

Adar Dembo commented on JBRULES-3349:
-------------------------------------

You can downgrade the priority of this bug; I've managed to switch over to the newer JDT so don't need Janino support any more.
                
> Not possible to use Janino to compile templates
> -----------------------------------------------
>
>                 Key: JBRULES-3349
>                 URL: https://issues.jboss.org/browse/JBRULES-3349
>             Project: Drools
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: drools-compiler
>    Affects Versions: 5.3.1.Final
>            Reporter: Adar Dembo
>            Assignee: Mark Proctor
>
> I've got the following code in my program:
> {code}
> Properties props = new Properties();
> props.setProperty("drools.dialect.java.compiler", "JANINO");
> config = KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(props);
> KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(config);
> {code}
> The resulting KnowledgeBuilder compiles rules using the Janino compiler, which is important for me because I have an old JDT dependency that may not be updated.
> Now I'm trying to compile templates, and I've got the following code, based on the Drools documentation:
> {code}
> ObjectDataCompiler converter = new ObjectDataCompiler();
> InputStream templateStream = this.getClass().getResourceAsStream("Templates.drl");
> String compiledTemplate = converter.compile(clusters, templateStream);
> Reader compiledRules = new StringReader(compiledTemplate);
> ...
> kbuilder.add(ResourceFactory.newReaderResource(compiledRules), ResourceType.DRL);
> {code}
> Unfortunately, I see the [familiar JDT error|https://community.jboss.org/wiki/RulesTomcat] in converter.compile(), indicating that Janino is not being used for template compilation. I've spent a bit of time going through the source code and I don't see a way to do this.

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