Automatic updating of Guvnor Rules appears to be not working.
by Stephen Mcgruer
Hi there. I'm trying to get automatic update of rules working in my
project, and seem to
have run into a problem. As far as I can tell, automatic polling and
updating is turned
on, and claims to update the knowledgebase, but changes to the rules
don't seem to have
any effect. A simple example - if I add the rule:
rule "TestRule"
dialect "mvel"
when
then
System.out.println("Hello, world!");
end
And start my application, I get:
Firing all rules...
Hello, world!
All rules fired.
As expected. If I then change the rule as follows:
rule "TestRule"
dialect "mvel"
when
then
System.out.println("I have changed!");
end
I get this output (timestamps trimmed for readability):
ResourceChangeScanner attempt to scan 1 resources
ResourceChangeScanner modified resource=[UrlResource
path='http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMI...']
:
1277371031000 : 1277371254000
ResourceChangeNotification received ChangeSet notification
ResourceChangeScanner thread is waiting for 60
ResourceChangeNotification processing ChangeSet
ResourceChangeNotification ChangeSet modified resource=[UrlResource
path='http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMI...']
for listener=org.drools.agent.impl.KnowledgeAgentImpl@e2d0b2
KnowledgeAgent received ChangeSet changed notification
ResourceChangeNotification thread is waiting for queue update
KnowledgAgent applying ChangeSet
KnowledgeAgent ChangeSet requires KnowledgeBuilderKnowledgeAgent
rebuilding KnowledgeBase
using ChangeSet
KnowledgeAgent building resource=[UrlResource
path='http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMI...']
KnowledgeAgent adding KnowledgeDefinitionsPackage ERMIE
KnowledgeAgent new KnowledgeBase now built and in use
So, this makes it seem like everything has worked. However, if I
insert a new fact and
fire all rules...
Inserting new fact...
Hello, World!
So, it hasn't worked. What might I have done wrong?
-Stephen
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
16 years
Jumbled with Drools-M2 Transactions
by KiranP
hello everybody,
i am implementing Drools in our project(using Spring3.0 + JPA2.0), initially
i was working with Drools 5.1.M1 and now newely started with M2,
the problem is i dont understand how M2 tracsactions work
what i have done is i used the spring based jpaSessionServiceFactory for
transactions in my project and created the following methods
@Transactional
public void startProcess(String processName,Map<String,WorkItemHandler>
handlers,Map<String,Object> parameters)
@Transactional
public void resumeProcess(long workItemId,Map<String, Object>
results,Map<String,WorkItemHandler> handlers)
As you can see both methods i made them as transactional
i have one more Service DAOService which deals with DB(CRUD operations)
now i have simple flow as Start --> Action --> End
in the Action node i call one of the CRUD method (as DAOService is made
Global ) what i observed is the method fails giving exception(given at the
end of this message)
this exception occurs only in delete case of CRUD
know why this happens..................
Exception :
java.lang.RuntimeException: unable to execute Action
at
org.drools.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:56)
at
org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:117)
at
org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:179)
at
org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:144)
at
org.drools.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
at
org.drools.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
at
org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:117)
at
org.drools.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:16)
at
org.drools.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:192)
at
org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:309)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1591)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:291)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:83)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:1)
at
org.drools.container.spring.beans.persistence.SpringSingleSessionCommandService$3$1.doInJpa(SpringSingleSessionCommandService.java:182)
at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:183)
at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:146)
at
org.drools.container.spring.beans.persistence.SpringSingleSessionCommandService$3.doInTransaction(SpringSingleSessionCommandService.java:173)
at
org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
at
org.drools.container.spring.beans.persistence.SpringSingleSessionCommandService.execute(SpringSingleSessionCommandService.java:171)
at
org.mkcl.insync.services.impl.ProcessServiceImpl.startProcess(ProcessServiceImpl.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy62.startProcess(Unknown Source)
at
org.mkcl.insync.web.controller.ProcessController.start(ProcessController.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:710)
at
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:167)
at
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:414)
at
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:402)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:552)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:71)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
at
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:344)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:110)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:98)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:95)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:79)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:120)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:55)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:36)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:106)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:150)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.springframework.dao.InvalidDataAccessApiUsageException:
Unknown node instance type:
org.drools.workflow.instance.node.ActionNodeInstance@ee49f; nested exception
is java.lang.IllegalArgumentException: Unknown node instance type:
org.drools.workflow.instance.node.ActionNodeInstance@ee49f
at
org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:287)
at
org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:103)
at
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:349)
at
org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
at
org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
at
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:145)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy57.removeById(Unknown Source)
at
org.mkcl.insync.services.impl.UserProfileServiceImpl.replaceWith(UserProfileServiceImpl.java:704)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy61.replaceWith(Unknown Source)
at
org.mkcl.insync.process.Process_org_mkcl_insync_process_0.action10(Process_org_mkcl_insync_process_0.java:85)
at
org.mkcl.insync.process.Process_org_mkcl_insync_process_0Action10Invoker.execute(Process_org_mkcl_insync_process_0Action10Invoker.java:23)
at
org.drools.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:54)
... 97 more
Caused by: java.lang.IllegalArgumentException: Unknown node instance type:
org.drools.workflow.instance.node.ActionNodeInstance@ee49f
at
org.drools.marshalling.impl.AbstractProcessInstanceMarshaller.writeNodeInstanceContent(AbstractProcessInstanceMarshaller.java:287)
at
org.drools.marshalling.impl.AbstractProcessInstanceMarshaller.writeNodeInstance(AbstractProcessInstanceMarshaller.java:138)
at
org.drools.marshalling.impl.AbstractProcessInstanceMarshaller.writeProcessInstance(AbstractProcessInstanceMarshaller.java:111)
at
org.drools.persistence.processinstance.ProcessInstanceInfo.update(ProcessInstanceInfo.java:252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:23)
at
org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:80)
at
org.hibernate.ejb.event.EntityCallbackHandler.preUpdate(EntityCallbackHandler.java:65)
at
org.hibernate.ejb.event.EJB3FlushEntityEventListener.invokeInterceptor(EJB3FlushEntityEventListener.java:41)
at
org.hibernate.event.def.DefaultFlushEntityEventListener.handleInterception(DefaultFlushEntityEventListener.java:330)
at
org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:270)
at
org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:151)
at
org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
at
org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
at
org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58)
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:996)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1141)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:67)
at com.trg.dao.jpa.JPABaseDAO._removeById(JPABaseDAO.java:113)
at com.trg.dao.jpa.GeneralDAOImpl.removeById(GeneralDAOImpl.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
... 115 more
-----
Keep Working >>
KiranP
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16 years
JVM launcher error in drools-solver-examples
by reddy80
Hi All,
Finally I have finished setting up the drools solver examples into the
Eclipse ID using m2eclipse plug-in.
But now I am facing another problem - the JVM Launcher error.
When I am trying to run one of the examples its throwing this error.
"Could not find the main
class:net.sf.cglib.transform.hook.AsmClassLoaderPreProcessor. Program will
exist."
This is what I have done to import the drools-solver-examples into the
Eclipse ID.
Imported the folder and solved the dependencies using m2eclipse. Though it
has no errors but many warnings are shown.
What should I do to run the examples? Kindly suggest.
Thanks & Regards
REDDY
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View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/JVM-launcher-error-in...
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16 years
OutOfMemoryError: GC overhead limit exceeded
by Jeffrey Schneller
I saw a similar thread about this back in March but I am now seeing a
similar exception being thrown. I am running 5.0.1. The error is
thrown in my app after the change set listener determines there was a
change with the rules package in the Guvnor. I have included the stack
trace from the most recent time the exception was thrown. Hopefully
someone can provide some additional information or a workaround. Has
this problem been fixed in 5.1? If so, has 5.1 moved out of M2 state
and into a CR state and when will it go into a full released state?
Exception in thread "Thread-44" java.lang.OutOfMemoryError: GC overhead
limit exceeded
at org.drools.rule.GroupElement.<init>(GroupElement.java:44)
at org.drools.rule.GroupElement.<init>(GroupElement.java:47)
at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown
Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tructorAccessorImpl.java:27)
at
java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.drools.rule.GroupElement.clone(GroupElement.java:267)
at org.drools.rule.GroupElement.clone(GroupElement.java:279)
at org.drools.rule.Rule.getExtendedLhs(Rule.java:518)
at org.drools.rule.Rule.getTransformedLhs(Rule.java:545)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.ja
va:98)
at
org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
at
org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
at
org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
at
org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500
)
at
org.drools.reteoo.ReteooRuleBase.addPackage(ReteooRuleBase.java:388)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgent
Impl.java:416)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentIm
pl.java:120)
at
org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.r
un(KnowledgeAgentImpl.java:538)
at java.lang.Thread.run(Thread.java:619)
Thanks.
16 years
Can I create WS to access Guvnor?
by bbarani
Hi,
I am trying to create a WS which will invoke the rules present in Guvnor and
sends back a response.
We have multiple applications which needs to execute the Rules present in
Guvnor and hence we thought of creating a WS which can be accessed by all
the applications.
We tried to use AXIS to create a WS but we are getting the below error when
we tried to run the java program (which we have created to fire rules
present in Guvnor) as webservice.
exception: java.lang.reflect.InvocationTargetException
The program runs fine as stand alone program. Any thoughts on this error /
suggestions would be of great help!!!
Thanks,
BB
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16 years
Guvnor not seeing model in rule editor
by Mike Reynolds
I have a new package in a category . I create two models and uploaded them
to guvnor. I go to create a rule and the model objects aren't showing up.
What am I doing wrong?
thanks
16 years
OutOfMemoryError: GC overhead limit exceeded - RESEND
by Jeffrey Schneller
This is a RESEND because of mail server issues. Not sure if the
original message went out.
I saw a similar thread about this back in March but I am now seeing a
similar exception being thrown. I am running 5.0.1. The error is
thrown in my app after the change set listener determines there was a
change with the rules package in the Guvnor. I have included the stack
trace from the most recent time the exception was thrown. Hopefully
someone can provide some additional information or a workaround. Has
this problem been fixed in 5.1? If so, has 5.1 moved out of M2 state
and into a CR state and when will it go into a full released state?
Exception in thread "Thread-44" java.lang.OutOfMemoryError: GC overhead
limit exceeded
at org.drools.rule.GroupElement.<init>(GroupElement.java:44)
at org.drools.rule.GroupElement.<init>(GroupElement.java:47)
at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown
Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tructorAccessorImpl.java:27)
at
java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.drools.rule.GroupElement.clone(GroupElement.java:267)
at org.drools.rule.GroupElement.clone(GroupElement.java:279)
at org.drools.rule.Rule.getExtendedLhs(Rule.java:518)
at org.drools.rule.Rule.getTransformedLhs(Rule.java:545)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.ja
va:98)
at
org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
at
org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
at
org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
at
org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500
)
at
org.drools.reteoo.ReteooRuleBase.addPackage(ReteooRuleBase.java:388)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgent
Impl.java:416)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentIm
pl.java:120)
at
org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.r
un(KnowledgeAgentImpl.java:538)
at java.lang.Thread.run(Thread.java:619)
Thanks.
16 years
JBOSS DROOLS Guvnor and SSO authentication
by ShanzRules
Hi
We would like to integrate guvnor with SSO(Sun access manager),
we have a portal application already integrated with sun access manager ,
and from portal we want to have a guvnor link on it and if we click on the
link , it should redirect to the guvnor home page without again displaying
the guvnor login.guvnor should automatically read the user credentials and
redirect to the home page for rules editing.
Please provide the solution if anyone has already implemented it.
Appreciate all your help
Regards,
Shantha
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16 years
