[rules-users] Error with conversion from .brl to .drl file

Mon Jun 14 09:34:02 EDT 2010

Looks like your classpath is missing a jar that contains org.drools.brms.server.util.BRXMLPersistence
Your either missing a dependency that you need or you may have a mix of different versions causing problems.

What's in your classpath and how are you managing it?

Thomas

> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org [mailto:rules-users-
> bounces at lists.jboss.org] On Behalf Of Fnu Mahalakshmi
> Sent: 14 June 2010 14:24
> To: 'rules-users at lists.jboss.org'
> Subject: Re: [rules-users] Error with conversion from .brl to .drl file
>
>
> Hi Giovanni,
>
> The classpath shows the commons jar added under UserEntries.
>
> I am getting another error when I try running the program now :
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/drools/brms/server/util/BRXMLPersistence
>       at com.org.RulesTest.main(RulesTest.java:40)
> Caused by: java.lang.ClassNotFoundException:
> org.drools.brms.server.util.BRXMLPersistence
>       at java.net.URLClassLoader$1.run(Unknown Source)
>       at java.security.AccessController.doPrivileged(Native Method)
>       at java.net.URLClassLoader.findClass(Unknown Source)
>       at java.lang.ClassLoader.loadClass(Unknown Source)
>       at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
>       at java.lang.ClassLoader.loadClass(Unknown Source)
>       at java.lang.ClassLoader.loadClassInternal(Unknown Source)
>       ... 1 more
>
> This was not coming till now.
> The exception come at the line when the .brl file is to  be processed.
> I am not able to figure out. I tried googling the error. But no use!
>
> Please help!
> Thanks
> M
>
> ------------------------------
>
> Message: 2
> Date: Mon, 14 Jun 2010 10:09:50 +0200
> From: Giovanni Motta <mottagio at gmail.com>
> Subject: Re: [rules-users] Error with conversion from .brl to .drl
>       file
> To: Rules Users List <rules-users at lists.jboss.org>
> Message-ID:
>       <AANLkTim_pHwmnwB0GmYWqE05FHCL1NZkG0f7nP3bHgj0 at mail.gmail.com>
> Content-Type: text/plain; charset="windows-1252"
>
> Are you launching the application from within eclipse?
> Have you checked the classpath of the launch configuration? You can see it
> by right-clicking the .java file and then selecting "run as --> run
> configurations..."
> Does it show the commons jar?
>
>
> 2010/6/12 Fnu Mahalakshmi <FMahalakshmi at nyx.com>
>
> >  Hi,
> >
> > I just tried everything I could think of but still getting error.
> >
> > Using following code for converting from .brl file to .drl file:
> >
> >
> >
> > File file = *new* File(rulesFiles);
> >
> >             String brl = *null*;
> >
> >             *try*{
> >
> >                   BRXMLPersistence read = (BRXMLPersistence)
> > BRXMLPersistence.*getInstance*();
> >
> >                   BRDRLPersistence write = (BRDRLPersistence)
> > BRDRLPersistence.*getInstance*();
> >
> >                   brl = FileUtils.*readFileToString*(file);
> >
> >                 System.*out*.println("File content: " + brl);
> >
> >                 String outputDRL = write.marshal(read.unmarshal(brl));
> >
> >                 String drlFilePath = "drlFile.drl";
> >
> >                 File drlFile = *new* File(drlFilePath);
> >
> >                 FileUtils.*writeStringToFile*(drlFile, outputDRL);
> >
> >                 addRulesToThisPackage.addPackageFromDrl(*new*
> >
> >                          InputStreamReader(RuleRunner.*class*
> > .getResourceAsStream(drlFilePath)));
> >
> >             }*catch* (IOException e) {
> >
> >
> >
> >                   e.printStackTrace();
> >
> >              }
> >
> >
> >
> > I have added the org.apache.commons .jar files to the classpath.
> >
> > It contains a FileUtils.java  file which I added to the classpath.
> >
> >
> >
> > Now the error I get when I run the program is :
> >
> > Exception in thread "main" java.lang.Error: Unresolved compilation problem:
> >
> >
> >       FileUtils cannot be resolved
> >
> >
> >
> >       at com.org.RuleRunner.loadRuleFile(*RuleRunner.java:70*)//
> >
> >       at com.org.RuleRunner.loadRules(*RuleRunner.java:45*)
> >
> >       at com.org.RuleRunner.runStatelessRules(*RuleRunner.java:102*)
> >
> >       at com.org.RulesTest.main(*RulesTest.java:40*)
> >
> >
> >
> >
> >
> >
> >
> > I don?t understand why still I am getting the error.
> >
> > RuleRunner.java:70 is : brl = FileUtils.*readFileToString*(file);
> >
> > Is there any thing else I could use ?/ Could you give me a hint??
> >
> > Thank you
> >
> > M
> >
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