[rules-users] Groovy classes as fact classes in drool

Thu Jan 19 03:46:44 EST 2012

It can't find the class groovy.lang.GroovyObject, looks like you need to deploy the groovy jars
into guvnor/tomcat so that they are available.

Thomas

> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org [mailto:rules-users-
> bounces at lists.jboss.org] On Behalf Of kavita
> Sent: 18 January 2012 18:55
> To: rules-users at lists.jboss.org
> Subject: [rules-users] Groovy classes as fact classes in drool
>
> Hi,
>
> Can anybody tell me how to use groovy classes as fact classes in drools.
> When i try to upload the jar file generated from the groovy class am getting
> the following error:
>
> SEVERE: Servlet.service() for servlet AssetFileServlet threw exception
> java.lang.ClassNotFoundException: groovy.lang.GroovyObject
>       at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoad
> er.java:1680)
>       at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoad
> er.java:1526)
>       at java.lang.Class.forName0(Native Method)
>       at java.lang.Class.forName(Unknown Source)
>       at
> org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.jav
> a:109)
>       at java.lang.ClassLoader.loadClass(Unknown Source)
>       at java.lang.ClassLoader.defineClass1(Native Method)
>       at java.lang.ClassLoader.defineClassCond(Unknown Source)
>       at java.lang.ClassLoader.defineClass(Unknown Source)
>       at
> org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader
> .java:86)
>       at
> org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.jav
> a:104)
>       at java.lang.ClassLoader.loadClass(Unknown Source)
>       at
> org.drools.guvnor.server.contenthandler.ModelContentHandler.isClassVisibl
> e(ModelContentHandler.java:183)
>       at
> org.drools.guvnor.server.contenthandler.ModelContentHandler.getImports
> FromJar(ModelContentHandler.java:148)
>       at
> org.drools.guvnor.server.contenthandler.ModelContentHandler.onAttachm
> entAdded(ModelContentHandler.java:66)
>       at
> org.drools.guvnor.server.files.FileManagerUtils.attachFileToAsset(FileManag
> erUtils.java:115)
>       at
> org.drools.guvnor.server.files.FileManagerUtils.attachFile(FileManagerUtils.j
> ava:87)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
> Source)
>       at java.lang.reflect.Method.invoke(Unknown Source)
>       at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
>       at
> org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationCo
> ntext.java:32)
>       at
> org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationC
> ontext.java:56)
>       at
> org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterc
> eptor.java:28)
>       at
> org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationC
> ontext.java:68)
>       at
> org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor
> .java:77)
>       at
> org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationC
> ontext.java:68)
>       at
> org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodCon
> textInterceptor.java:44)
>       at
> org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationC
> ontext.java:68)
>       at
> org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityIntercept
> or.java:163)
>       at
> org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationC
> ontext.java:68)
>       at
> org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
>       at
> org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBean
> Interceptor.java:185)
>       at
> org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.j
> ava:103)
>       at
> org.drools.guvnor.server.files.FileManagerUtils_$$_javassist_seam_10.attac
> hFile(FileManagerUtils_$$_javassist_seam_10.java)
>       at
> org.drools.guvnor.server.files.AssetFileServlet.processAttachFileToAsset(Ass
> etFileServlet.java:97)
>       at
> org.drools.guvnor.server.files.AssetFileServlet.doPost(AssetFileServlet.java:
> 49)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
>       at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFi
> lterChain.java:290)
>       at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChai
> n.java:206)
>       at
> org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
>       at
> org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpSe
> rvletRequest.java:65)
>       at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
>       at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFi
> lterChain.java:235)
>       at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChai
> n.java:206)
>       at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
> alve.java:233)
>       at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextVal
> ve.java:191)
>       at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
> 127)
>       at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:1
> 02)
>       at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
> java:109)
>       at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
> 93)
>       at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:85
> 9)
>       at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
> s(Http11Protocol.java:602)
>       at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
>       at java.lang.Thread.run(Unknown Source)
>
> Please help.
>
> Thanks,
> Kavitha.
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/Groovy-
> classes-as-fact-classes-in-drool-tp3670101p3670101.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users

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