So, let's talk about some points: - You should not create a new knowledge base every time you need a session, because construction of knowledge bases is very expensive. You would do this at start of application applying Singleton pattern. - If you already have a knowledge base, you are able to get parameters from GET or POST using your preferred controller, instantiate your objects using then and after that pass your objects for a new knowledge session (stateless or statefull).
On 5 December 2011 10:13, srinivasasanda <srinivasasa...@gmail.com> wrote: > this piece of application is working using drools project, but its not > working in (webapplication) > > i had a text box age and income that values i am trying passing this data > to > rule and run the rules. > i created one jsp , jsp call servlet, In servelt i called the below piece > of > code in servlet but not executing > > I am trying to include it this piece of code into webapplication (in > servlet > or jsp) it is showing error. > > public static final void runMain() { > try { > RuleAgent agent = > RuleAgent.newRuleAgent("/guvnor.properties"); > RuleBase ruleBase = agent.getRuleBase(); > WorkingMemory workingMemory = ruleBase.newStatefulSession(); > FactType ft= ruleBase.getFactType("sample.person"); //created > declarative model in guvnor > Object obj=ft.newInstance(); > ft.set(obj,"age", 67); > //setting data into into person > ft.set(obj, "income", 1000); > workingMemory.insert(obj); > workingMemory.fireAllRules(); > System.out.print(ft.get(obj, "age")); > System.out.print(ft.get(obj, "income")); > } catch (Throwable t) { > t.printStackTrace(); > } > } > > > 12:46:44,409 ERROR [STDERR] RuleAgent(default) INFO (Mon Dec 05 12:46:44 > GMT > 2011): Configuring with > newInstance=false, secondsToRefresh=-1 > 12:46:44,419 ERROR [STDERR] RuleAgent(default) INFO (Mon Dec 05 12:46:44 > GMT > 2011): Configuring pack > age provider : URLScanner monitoring URLs: > http://localhost:8082/guvnor-5.2.0.Final-jboss-as-5.1/or > g.drools.guvnor.Guvnor/package/sample/LATEST > 12:46:44,669 INFO [STDOUT] INFO 05-12 12:46:44,669 > (NilAuthenticator.java:authenticate:35) All > users are guests. > > > 12:46:44,359 ERROR [STDERR] java.lang.IllegalArgumentException: Could not > parse knowledge. > 12:46:44,359 ERROR [STDERR] at > com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:115) > 12:46:44,359 ERROR [STDERR] at > com.sample.DroolsTest.FireRools(DroolsTest.java:62) > 12:46:44,359 ERROR [STDERR] at p1.Login.doGet(Login.java:37) > 12:46:44,359 ERROR [STDERR] at > javax.servlet.http.HttpServlet.service(HttpServlet.java:617) > 12:46:44,359 ERROR [STDERR] at > javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > > > 12:46:44,699 ERROR [STDERR] RuleAgent(default) EXCEPTION (Mon Dec 05 > 12:46:44 GMT 2011): org.drools. > rule.Package; local class incompatible: stream classdesc serialVersionUID = > 510, local class serialV > ersionUID = 400. Stack trace should follow. > 12:46:44,699 ERROR [STDERR] java.io.InvalidClassException: > org.drools.rule.Package; local class inco > mpatible: stream classdesc serialVersionUID = 510, local class > serialVersionUID = 400 > 12:46:44,699 ERROR [STDERR] at > java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562 > ) > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Calling-drools-into-the-Web-Application-tp3561362p3561362.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- ---------------------------------------------------------------------------------------------------------------- Jackson Cunha Cassimiro (CereB) Bacharel em Ciencia da Computação - UFPI MSN: jackson.ce...@gmail.com Telefone Móvel +55 86 9928 1251 Analista de Sistemas - Infoway - http://www.infoway-pi.com.br Missão Infoway - "Influenciar a Gestão de Sistemas de Saúde através de e-health" ("A vida é um combate que os fracos abate, aos bravos, aos fortes só pode exaltar" - Canção do Tamoio, Gonçalves Dias) ----------------------------------------------------------------------------------------------------------------
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