topic Re: Droolls drl file included in bar is not deployed. in Alfresco Archive

Droolls drl file included in bar is not deployed.

mutcha — Thu, 05 Jul 2012 09:54:25 GMT

Hi I tried to deploy process with rule, but it didn't work. Can you help?private ProcessEngine createProcessEngineInMemory() { return ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration() .setDatabaseSchemaUpdate( ProcessEngineConfiguration.DB_SCHEMA_UPDA

Re: Droolls drl file included in bar is not deployed.

frederikherema1 — Thu, 05 Jul 2012 09:58:35 GMT

I see you are using StandaloneInMem configuration… Use a configuration-file instead where you actually define that you're going to use the rules. Example here:

https://svn.codehaus.org/activiti/activiti/trunk/modules/activiti-engine/src/test/resources/org/activiti/standalone/rules/rules.activiti.cfg.xml


 <property name="customPostDeployers">
      <list>
        <bean class="org.activiti.engine.impl.rules.RulesDeployer" />
      </list>
    </property>

Re: Droolls drl file included in bar is not deployed.

mutcha — Thu, 05 Jul 2012 10:51:15 GMT

Hi,
Thank you for fast reply.
I tried it before to use configuration from file, but then should I use just "ProcessEngines.getDefaultProcessEngine()" ???
Because when I try to get process engine using this method then I got "null" without any exception or detailed message which could indicate what was wrong, that's why I left this approach and tried to configure the process engine in the code.

So solutions to my problem could be:
1. Setting custom post deployer from code, NOT from configuration. Is there some possibility to do this?
2. Try to find the reason, why I cannot get the process engine in the "file configuration" approach? How could I get some information about the error why the ProcessEngines.getDefaultProcessEngine() returns null ? Maybe I use wrong method? Maybe I should use some different than getDefaultProcessEngine() ?

Re: Droolls drl file included in bar is not deployed.

frederikherema1 — Thu, 05 Jul 2012 11:15:20 GMT

You can use ProcessEngineConfiguration.createProcessEngineFromResource(…) passing in your configuration-file containing the config.
Alternatively, If you want to use the ProcessEngines.getDefaultProcessEngine(), make sure the config-file is on the class path and is named activiti.cfg.xml.

By code it's also possible. This forces you to cast the ProcessEngineConfiguration to a ProcessEngineConfigurationImpl and calling setCustomPostDeployers()…

Re: Droolls drl file included in bar is not deployed.

mutcha — Thu, 05 Jul 2012 11:19:22 GMT

Thanks, I will check all these possibilities,
And again, nice to see that support from Activiti team is so fast.
Regards.

Re: Droolls drl file included in bar is not deployed.

frederikherema1 — Thu, 05 Jul 2012 11:21:10 GMT

You're just lucky

Re: Droolls drl file included in bar is not deployed.

mutcha — Thu, 05 Jul 2012 12:20:53 GMT

Now I'm one step further, but it seems that during parsing of rule following exception occured:

: java.lang.NoSuchMethodError: org.antlr.runtime.Lexer.<init>(Lorg/antlr/runtime/CharStream;Lorg/antlr/runtime/RecognizerSharedStateV
14:17:23.054 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.lang.DRLLexer.<init>(DRLLexer.java:134)
14:17:23.054 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.lang.DRLLexer.<init>(DRLLexer.java:131)
14:17:23.054 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.compiler.DrlParser.getParser(DrlParser.java:287)
14:17:23.054 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.compiler.DrlParser.parse(DrlParser.java:135)
14:17:23.055 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.compiler.DrlParser.parse(DrlParser.java:141)
14:17:23.055 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:394)
14:17:23.055 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:586)
14:17:23.055 INFO [p.application.0] System.out                [component=incidentservice] at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37)

I have following jars which I suppose are needed for drools:
drools-compiler-5.3.0.Final.jar
drools-core-5.3.0.Final.jar
antlr-3.3.jar
antlr-runtime-3.3.jar

Do I use good jars? Or maybe in wrong versions or something? Or some are missing ?

Re: Droolls drl file included in bar is not deployed.

frederikherema1 — Thu, 05 Jul 2012 12:33:14 GMT

Looks like the drools-pom doesn't specify any versions for antlr. Try earlier versions…