September 2008 - rules-users - Jboss List Archives

by Michael Zimmermann

Hi there, you might see this as a follow up to a discussion named "Query by Example" a couple of days ago, see here: http://lists.jboss.org/pipermail/rules-users/2008-September/006520.html Question to the devs: Having looked through the code, adding support for a custom operator requires - changing the DRL.g - regenerating the DRLLexer and DRLParser classes from this grammar - changing the XyzEvaluator and related classes in org.drools.base.evaluators. If I skip MVEL, the BRMS and other places like decision tables for now, is this all to expand the DRL syntax? Or are any further steps required to connect the grammar with the "java logic"? Thanks! Michael

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RE: [rules-dev] Implementation of expert system

by Kumar, Prasoon (Prasoon)

This is a question for users group. Prasoon Kumar Technical Architect | Event Processor, Avaya | Tower 11, 5 Floor , Cybercity, Pune 4110028 -India | Voice: +91 20 4101 8119 | email: kumar4(a)avaya.com | mobile: +91 9922963102 ________________________________ From: rules-dev-bounces(a)lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Binyala, Krishna Gopal IN BLR SISL Sent: Wednesday, September 17, 2008 4:11 PM To: rules-dev(a)lists.jboss.org Subject: [rules-dev] Implementation of expert system Hello, I am new to drools community... I want to develop an expert system for medical application using drools. can you please let me know how to use history data in drools... Because as far as i know we have to keep all the data in the working memory to access. How should i implement such system? Would be better if you can provide some reference to existing expert system implemented using drools. Thanks in advance. Krishna Gopal In three words I can sum up everything I've learned about life: it goes on... Important notice:This e-mail and any attachment thereto contains corporate proprietary information. If you have received it by mistake, please notify us immediately by reply e-mail and delete this e-mail and its attachments from your system. Thank You.

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Regular Expressions : Collections : matches problem

by Gary Napier

Hi folks, I have searched the archives and can't quite find the right way to write this rule, if it's possible. In a nutshell i have a Global Collection of regular expression patterns. I would like a rule to take a single string from a fact and try to match it to any of the saved patterns. so i have a basic test harness here to try : global Collection regexpString rule "Test" when $TEST : TEST( NAME _*matches*_ regexpString ) then System.out.println("working"); end -------------- The Collections is set outside the engine and contains test inputs of [".* Smith.*",".*-Jones"], and so would match "Dave Smith" or "Rupert Perry-Jones" Can you help me fix the above code in order to do that. I am new to drools and am struggling to get my head around complexities like accumulates and collect(). Would these help? In the worst case can i create my own function that uses an iterator and java's own regular expression features to do this? (i'm guessing via an Eval) Any help or creative criticism of the design would be appreciated, Drools 4.07, java6, (recovering JESS addict ;-) ) Thanks Gary

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Disabling pattern matching alltogether for set of rules?

by Ingomar Otter

Folks, we have a scenario where we are applying rules with complex in their LHS at the "end of our rule processing". Today we just use a low salience to achieve this. Obviously, these rules are included in the pattern matching and in the agenda updates for all preceding changes to the WM. We do quite some changes to the facts during our regular processing so "unnecessary" pattern-matching/agenda updates are performed. I have looked at rule-flow, agenda-groups etc but one thing I could not figure out by studying the documentation: Which is the (best) way to exclude certain rules from pattern matching (switch them off alltogether) so that we can delay the pattern matching until the facts have stabilized? Cheers, Ingomar

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Re: [rules-users] Update vs insert

by Shyam, Pallav (MSCIBARRA)

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Storing RuleDescr and/or PackageDescr in a database table

by imraan

Users in my system will be able to configure their own rules to an extent through a UI. I will create these rules programmatically using the org.drools.lang.descr package. Right now, I am trying to see if its possible to store the RuleDescr or PackageDescr object(s) in a database. How exactly can I store these objects? Is there another way besides storing the DRL text in the database (I don't really want to do this)? Thanks, Imraan -- View this message in context: http://www.nabble.com/Storing-RuleDescr-and-or-PackageDescr-in-a-database... Sent from the drools - user mailing list archive at Nabble.com.

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ClassNotFoundException for functions if cached Rulebase used

by Seema Manivannan

hi, I'm using Drools 4.0.7. Using BRMS, I created a package which consists of a technical drl rule and a function. As the performance best practice suggestion goes, I'm caching the Rulebase instance that is obtained from the RuleAgent. However, I'm facing a problem when I'm doing this. The rules execute just fine if I call fireAllRules() just once. However, I get a ClassNotFoundException for the functions in my package when I fire the rules for the second time using the cached Rulebase. However, this problem does not occur if I create the Rulebase every time without caching. Could this be a possible bug? Thanks, Seema Here is the stack trace (the package name is Test and the function name is TestMe) 01:23:33,359 ERROR [[InsuranceServlet]] Servlet.service() for servlet InsuranceServlet threw exception java.lang.ClassNotFoundException: Test.TestMe at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204) at java.lang.ClassLoader.loadClassInternal(Unknown Source) at ASMAccessorImpl_91782341221162783340.getValue(Unknown Source) at org.mvel.ASTNode.getReducedValueAccelerated(ASTNode.java:174) at org.mvel.MVELRuntime.execute(MVELRuntime.java:90) at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) at org.mvel.MVEL.executeExpression(MVEL.java:235) at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:48) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439) at org.acme.insurance.web.DroolsBusiness.execute(DroolsBusiness.java:122) at org.acme.insurance.web.InsuranceServlet.doGet(InsuranceServlet.java:38) 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.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 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:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Unknown Source)

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AAAI Spring Symposium on Intelligent EventProcessing 2009

by Adrian Paschke

[ our apologies should you receive this message more than one time ] AAAI Spring Symposium on Intelligent Event Processing AAAI Spring Symposium Wednesday, March 23-25, 2009 at Stanford University http://icep-aaai08.fzi.de/ ===================================================================== Event-based systems are now gaining increasing momentum as witnessed by current efforts in areas including event-driven architectures, business process management and modeling, Grid computing, Web services notifications, and message-oriented middleware. They become ever important in various application domains, ranging from traditional business applications, like supply-chain management, to the entertainment industry, like on-line gaming applications. However, the current status of development is just the tip of the iceberg compared with the impact that event processing could achieve, as already reported by market research companies. Indeed, existing approaches are dealing primarily with the syntactical (but very scalable) processing of low-level signals and primitive actions, which usually goes with an inadequate treatment of the notions of time, context or concurrency (for example, synchronization). For example, some of the current event processing products are descendents of the active database research that misses efficient (formal) handling of termination, priority ordering, and confluence in rule bases. AI and especially symbolic (for example, logic-based) approaches provide native background for the (formal) representation of the above mentioned missing concepts, enabling evolution from event processing systems into intelligent reactive systems. The work done in temporal logic, spatial reasoning, knowledge representation, ontologies, and so on enables more declarative representation of events and actions and their semantic processing. Contextual reasoning can support complex event prediction. Transactional logic can be used for ensuring the consistency between highly dependent processes in a formal way. On the other side, the heterogeneous and highly distributed nature of event-processing systems, especially on the web, provides new challenges for AI and logics, like the contextualized reasoning over large stream data, scalable mapping of complex structures, or distributed approximate reasoning, to name but a few. Possible symposium topics comprise, but are not limited to: ----------------------------------------------------------- Modeling * Conceptual modeling in event-driven processing * Modeling context in event-driven processing * Event processing languages * Business rules and event-driven processing * Editors for complex events * Complex event processing in highly distributed AI applications * Modeling reactive systems using event-driven processing * Event stream processing * Event-driven architecture for Intelligent Event Processing Discovery * Complex event patterns mining * Temporal aspects in event mining * Prediction of events * Discovery of similar event * Discovery of unknown events * Dealing with missing events Reasoning/Processing * Complex event detection * The role of logic in event processing * Distributed reasoning for events * Reasoning with uncertain events * Reasoning under real-time constraints * Complexity in reasoning for Intelligent Event Processing Advanced Applications * Distributed event processing as a basis for AI applications * Financial trading * Web / Internet of Things * Entertainment * Ubiquitous Computing/ Ambient Intelligence * Business Activity Monitoring * AI in global epidemiology monitoring systems * Other domains Submissions ----------- Papers should be prepared using the two-column AAAI conference paper format. Long papers should be at most six pages; short papers at most two pages. Papers must be submitted electronically via the symposium website. Submissions must be in PDF using the workshop submission system for SSS09, at http://www.easychair.org/conferences/?conf=sss09 More Information http://icep-aaai09.fzi.de/ Important Dates --------------- Deadline for submissions: October 31st, 2008 (12.00 AM, GMT) Notification of acceptance: December 9th, 2008 Camera-ready versions: January 16th, 2009 Symposium: March 23-25, 2009 Organizing Committee --------------------- Nenad Stojanovic, chair, (FZI - Research Center for Information Technologies at the University of Karlsruhe, Germany), Andreas Abecker (FZI, Germany), Opher Etzion (IBM Research Lab, Haifa, Israel). Adrian Paschke (RuleML Inc, Canada and Free University Berlin, Germany) Program Committee ------------------ Alex Kozlenkov, Betfair Ltd. UK Brian Connell, WestGlobal, UK Christian Brelage, SAP, Germany Darko Anicic, FZI at the University of Karlsruhe, Germany David Luckham, Stanford University, USA Dieter Gawlick, Oracle, USA Gregoris Mentzas, ICCS, University of Athens, Greece Jean-Pierre Lorre, EBM Websourcing, France José Júlio Alferes, Faculdade de Ciências e Tecnologia/Universidade Nova de Lisboa, Portugal Jun-jang Jeng, IBM Watson Research Center, USA Ljiljana Stojanovic, FZI at the University of Karlsruhe, Germany Michal Rosen-Zvi, IBM Haifa Research Lab, Israel Pedro Bizarro, University of Coimbra, Portugal Prasad Vishnubhotla, IBM Software Group, USA Rainer von Ammon, CITT, Germany (to be completed)

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Re: [rules-users] Problem with setting a Global

by Earnest Dyke

Thanks for the response. I have tried that actually. Left it out of the code snippet by accident. I have tired both: import org.jboss.seam.log.Log global Log log as well as: global import org.jboss.seam.log.Log log and neither made a difference. Earnie! ----- Original Message ---- From: Ingomar Otter <iotter(a)mac.com> To: Rules Users List <rules-users(a)lists.jboss.org> Sent: Thursday, September 11, 2008 12:42:43 PM Subject: Re: [rules-users] Problem with setting a Global You have to declare the global in the rule package. global foo.bar.Logger logger; --Ingomar Am 11.09.2008 um 18:24 schrieb Earnest Dyke: > Greetings all, > > I have the following Java code and rule. When executed I get an > "Unexpected Global" exception (see below). What am I doing wrong? > > .... > @In WorkingMemory wm > > @Logger Log log; > > public void calculate() { > wm.setGlobal("logger",log); > wm.insert(calcResult); > wm.fireAllRules(); > } > > > rule "Calc" > when > $c : CalcResult(); > then > log(drools.getRule().getName(),log); > // Do calculation > end > > function void log(String msg, Log log) { > log.debug(msg,new Object[]{}); > } > > When the calculate method is executed I get the following exception: > > > java.lang.RuntimeException: Unexpected global [logger] > at > org > .drools > .common.AbstractWorkingMemory.setGlobal(AbstractWorkingMemory.java: > 367) > at > org.ebsinc.ia.action.AnalysisAction.createData(AnalysisAction.java:93) > 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:585) > at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) > at > org > .jboss > .seam > .intercept.RootInvocationContext.proceed(RootInvocationContext.java: > 31) > at > org > .jboss > .seam > .intercept.SeamInvocationContext.proceed(SeamInvocationContext.java: > 56) > at > org > .jboss > .seam > .core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46) > at > org > .jboss > .seam > .intercept.SeamInvocationContext.proceed(SeamInvocationContext.java: > 68) > at > org > .jboss > .seam > .persistence > .ManagedEntityIdentityInterceptor > .aroundInvoke(ManagedEntityIdentityInterceptor.java:48) > at > org > .jboss > .seam > .intercept.SeamInvocationContext.proceed(SeamInvocationContext.java: > 68) > at > org > .jboss > .seam > .transaction > .RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31) > at > org > .jboss > .seam > .intercept.SeamInvocationContext.proceed(SeamInvocationContext.java: > 68) > at > org > .jboss > .seam > .core > .MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java: > 42) > at > org > .jboss > .seam > .intercept.SeamInvocationContext.proceed(SeamInvocationContext.java: > 68) > at > org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java: > 106) > at > org > .jboss > .seam > .intercept > .JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155) > at > org > .jboss > .seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java: > 91) > at org.ebsinc.ia.action.AnalysisAction_$ > $_javassist_9.createData(AnalysisAction_$$_javassist_9.java) > 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:585) > at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) > at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java: > 125) > at org.jboss.seam.Component.callComponentMethod(Component.java:2074) > at org.jboss.seam.Component.callCreateMethod(Component.java:1997) > at org.jboss.seam.Component.newInstance(Component.java:1968) > at org.jboss.seam.Component.getInstance(Component.java:1865) > at org.jboss.seam.Component.getInstance(Component.java:1832) > at org.jboss.seam.Component.getInstanceFromFactory(Component.java: > 1911) > at org.jboss.seam.Component.getInstance(Component.java:1855) > at org.jboss.seam.Component.getInstance(Component.java:1832) > at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) > at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) > at org.jboss.seam.Namespace.get(Namespace.java:28) > at > org > .jboss.seam.el.SeamELResolver.resolveInNamespace(SeamELResolver.java: > 197) > at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:57) > at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) > at > com > .sun > .faces > .el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java: > 64) > at > org > .jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53) > at org.jboss.el.parser.AstValue.getValue(AstValue.java:67) > at > org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java: > 186) > at > com > .sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java: > 71) > at > javax > .faces > .component > .ValueBindingValueExpressionAdapter > .getValue(ValueBindingValueExpressionAdapter.java:102) > at com.sun.facelets.component.UIRepeat.getValue(UIRepeat.java:143) > at com.sun.facelets.component.UIRepeat.getDataModel(UIRepeat.java: > 121) > at com.sun.facelets.component.UIRepeat.setIndex(UIRepeat.java:305) > at com.sun.facelets.component.UIRepeat.process(UIRepeat.java:333) > at com.sun.facelets.component.UIRepeat.encodeChildren(UIRepeat.java: > 617) > at org.jboss.seam.pdf.ui.ITextComponent.encode(ITextComponent.java: > 248) > at > org > .jboss.seam.pdf.ui.ITextComponent.encodeChildren(ITextComponent.java: > 213) > at org.jboss.seam.pdf.ui.ITextComponent.encode(ITextComponent.java: > 248) > at > org > .jboss.seam.pdf.ui.ITextComponent.encodeChildren(ITextComponent.java: > 213) > at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) > at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) > at > com > .sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java: > 592) > at > org > .ajax4jsf > .application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java: > 108) > at > org > .ajax4jsf > .application.AjaxViewHandler.renderView(AjaxViewHandler.java:189) > at > com > .sun > .faces > .lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) > at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java: > 251) > at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java: > 144) > at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) > at sun.reflect.GeneratedMethodAccessor621.invoke(Unknown Source) > at > sun > .reflect > .DelegatingMethodAccessorImpl > .invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at org.apache.catalina.security.SecurityUtil > $1.run(SecurityUtil.java:244) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) > at > org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java: > 276) > at > org > .apache > .catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) > at > org > .apache > .catalina > .core > .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: > 283) > at org.apache.catalina.core.ApplicationFilterChain.access > $000(ApplicationFilterChain.java:56) > at org.apache.catalina.core.ApplicationFilterChain > $1.run(ApplicationFilterChain.java:189) > at java.security.AccessController.doPrivileged(Native Method) > at > org > .apache > .catalina > .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:83) > at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java: > 85) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:69) > at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java: > 64) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:69) > at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:69) > at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java: > 154) > at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260) > at > org > .ajax4jsf > .webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366) > at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493) > at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:69) > at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) > at org.jboss.seam.servlet.SeamFilter > $FilterChainImpl.doFilter(SeamFilter.java:69) > at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) > at sun.reflect.GeneratedMethodAccessor1504.invoke(Unknown Source) > at > sun > .reflect > .DelegatingMethodAccessorImpl > .invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at org.apache.catalina.security.SecurityUtil > $1.run(SecurityUtil.java:244) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) > at > org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java: > 276) > at > org > .apache > .catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218) > at > org > .apache > .catalina > .core > .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: > 230) > at org.apache.catalina.core.ApplicationFilterChain.access > $000(ApplicationFilterChain.java:56) > at org.apache.catalina.core.ApplicationFilterChain > $1.run(ApplicationFilterChain.java:189) > at java.security.AccessController.doPrivileged(Native Method) > at > org > .apache > .catalina > .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) > at > org > .jboss > .web > .tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) > at sun.reflect.GeneratedMethodAccessor620.invoke(Unknown Source) > at > sun > .reflect > .DelegatingMethodAccessorImpl > .invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at org.apache.catalina.security.SecurityUtil > $1.run(SecurityUtil.java:244) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) > at > org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java: > 276) > at > org > .apache > .catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218) > at > org > .apache > .catalina > .core > .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: > 230) > at org.apache.catalina.core.ApplicationFilterChain.access > $000(ApplicationFilterChain.java:56) > at org.apache.catalina.core.ApplicationFilterChain > $1.run(ApplicationFilterChain.java:189) > at java.security.AccessController.doPrivileged(Native Method) > at > org > .apache > .catalina > .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) > at > org > .apache > .catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: > 230) > at > org > .apache > .catalina.core.StandardContextValve.invoke(StandardContextValve.java: > 175) > at > org > .jboss > .web > .tomcat > .security > .SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) > at > org > .apache > .catalina > .authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) > at > org > .jboss > .web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) > at > org > .apache > .catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) > at > org > .apache > .catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) > at > org > .jboss > .web > .tomcat > .service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java: > 157) > at > org > .apache > .catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: > 109) > at > org > .apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: > 262) > at > org > .apache.coyote.http11.Http11Processor.process(Http11Processor.java: > 844) > at org.apache.coyote.http11.Http11Protocol > $Http11ConnectionHandler.process(Http11Protocol.java:583) > at org.apache.tomcat.util.net.JIoEndpoint > $Worker.run(JIoEndpoint.java:446) > at java.lang.Thread.run(Thread.java: > 595)_______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

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RuleML-2008: Deadline Extension

by Adrian Paschke

[ our apologies should you receive this message more than one time ] ===================================================================== Due to a number of requests we have to decided to extend the submission deadline by 2 weeks. NEW deadline for paper/demo submission: June 16 ===================================================================== 2008 International RuleML Symposium on Rule Interchange and Applications (RuleML-2008) October 30-31, 2008, Orlando, Florida http://2008.ruleml.org -------------------------------------------------------------------- RuleML-2008 Highlights: - Keynote speakers: * Michael Kifer (State University of New York at Stony Brook, USA), on "Rule Interchange Format: Not Just Syntax". Joint keynote between RuleML-2008 and RR2008. * David Luckham (Stanford University, USA) on complex event processing. * Paul Haley (Haley Ltd) on business rules. * Benjamin Grosof (Vulcan Inc, USA) on the SILK KRR system of the HALO project. (Details at: http://2008.ruleml.org/keynote.php ) - Joint Lunch Panel with the Business Rules Forum about "Rules on the Web" - RuleML-2008 Challenge with prestigious prices (Details at: http://2008.ruleml.org/challenge.php ) (Submissions at: http://ruleml-challenge.cs.nccu.edu.tw/ ) - Lightning talks / Highlight talks Accepted papers will be published in Springer LNCS proceedings and a journal special issue (IEEE TKDE pending) is forthcoming. PRESS RELEASES: http://www.targetwire.com/vpo/rm/ -------------------------------------------------------------------- Call for Papers Collocated with the 11th International Business Rules Forum, the 2008 International Symposium on Rule Interchange and Applications (RuleML-2008) is the second symposium (after last year's highly successful RuleML-2007 - http://2007.ruleml.org/) devoted to work on practical distributed rule technologies and rule-based applications which need language standards for rules operating in the context of, e.g., the Semantic Web, Intelligent Multi- Agent Systems, Event-Driven Architectures and Service-Oriented Computing Applications. The RuleML symposium is a new kind of event where the Web Rules and Logic community joins the established, practically oriented Forum of the Business Rules community (http://www.businessrulesforum.com) to help cross- fertilizing between Web and Business Logic technology. The goal of RuleML-2008 is to bring together rule system providers, representatives of, and participants in, rule standardization efforts (e.g., SBVR, RuleML, RIF, PRR, CL) and open source rules communities (e.g., jBoss Rules, CLIPS/Jess, Prova, OO jDrew, Mandarax, XSB, XQuery), practitioners and technical experts, developers, users, and researchers. They will be offered an exciting venue to exchange new ideas, practical developments and experiences on issues pertinent to the interchange and application of rules in open distributed environments such as the Web. The Symposium gives emphasis on practical issues such as technical contributions and show case demonstrations of effective, practical, deployable rule-based technologies, rule interchange formats and applications as well as discussions of lessons learned that have to be taken into account when employing rule-based technologies in distributed, (partially) open, heterogeneous environments. We also welcome groundwork that helps to build an effective, practical, and deployable rule standard, improve rule technology, provide better understanding of the integration and interchange of rules, and make the current generation of rule engines and rule technology more usable for advanced Web and Service Oriented Architectures. More details in: http://2008.ruleml.org/cfp.pdf -------------------------------------------------------------------- RuleML-2008 Challenge The RuleML-2008 Challenge is one of the highlights of RuleML-2008. It addresses the system demonstration for practical use of rule technologies in distributed and/or Web-based environments. The focus of the challenge is on rule technologies (including rule languages and engines), interoperation and interchange. The challenge offers participants the chance to demonstrate their commercial and open source tools, use cases, and applications. Prizes will be awarded to the two best applications. All accepted demos will be presented in a special Challenge Session. More details in: http://2008.ruleml.org/challenge.php -------------------------------------------------------------------- Important Dates - Paper Submissions due June 16, 2008 (EXTENDED) - Notification of acceptance July 22, 2008 - Final submissions due August 13, 2008 - Symposium date October 30-31, 2008 - RuleML Challenge October 30, 2008 -------------------------------------------------------------------- Submission Site is open: http://www.easychair.org/conferences/?conf=ruleml2008 Submission guidelines: http://2008.ruleml.org/submissions.php Topics of Interest: http://2008.ruleml.org/topics.php Organizing Committee: http://2008.ruleml.org/oc.php Program Committee: http://2008.ruleml.org/pc.php ===================================================================== Co-located with: The 11th International Business Rules Forum http://www.businessrulesforum.com ===================================================================== Sponsored by: Gold level : Vulcan Inc (pending) Silver level: Model Systems Bronze level: STI Innsbruck, ruleCore, JBoss Sponsoring opportunities: http://2008.ruleml.org/sponsoring/ ===================================================================== In Co-operation with: AAAI, W3C, BPM-Forum, Business Rules Forum , ECCAI, OASIS, OMG, Dallas Rules Group, Belgium Business Rules Forum, MIT Sloan CIO Symposium, ACM, ACM SIGART, ACM SIGMIS, ACM SIGWEB, Open Research Society, IEEE Systems Man and Cybernetics Society IEEE SMCS TC on Intelligent Internet Systems IEEE SMCS TC on Distributed Intelligent Systems IEEE Computer Society TC on Autonomous and Autonomic Systems ===================================================================== Media Partners: Springer LNCS, MoDo Marketing =====================================================================

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rules-users September 2008