Re: [rules-dev] Drools and GWT Application integration

Where can i get? On Wed, Sep 11, 2013 at 12:53 PM, Mauricio Salatino <salaboy(a)gmail.com&gt;wrote: > Ok, so the error is pretty clear: java.lang.NoClassDefFoundError: > org/slf4j/LoggerFactory > > You need to add that to your class path > > > On Wed, Sep 11, 2013 at 10:51 AM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: > >> In my serviceImplementation[in the server package] class in GWT RPC >> When i try to check the execution the system doesn't run this line: >> KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); >> >> KnowledgeBuilder kbuilder = >> KnowledgeBuilderFactory.newKnowledgeBuilder(); >> //inputStream = >> this.getClass().getClassLoader().getResourceAsStream("ChangeSet.xml"); >> url= this.getClass().getClassLoader().getResource("ChangeSet.xml"); >> workingDirectory = System.getProperty("user.dir"); >> System.out.println("URL "+url); >> file = new File(workingDirectory +"/src/ChangeSet.xml"); >> if(file.exists()){ >> System.out.println("Directory "+file.getName()); >> } >> else{ >> System.out.println("File not seen"); >> } >> kbuilder.add( >> ResourceFactory.newUrlResource(url),ResourceType.CHANGE_SET); >> if( kbuilder.hasErrors() ) { >> >> System.out.println( kbuilder.getErrors() ); >> System.out.println("The changeset file has errors"); >> // return; >> }else{ >> System.out.println("The changeset has no errors"); >> } >> >> KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); >> System.out.println("knowledgebase has been created"); >> >> KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent( >> "MyAgent" ); >> // URL url = getClass().getResource("ChangeSet.xml"); >> // File file = new File(url.getPath()); >> kagent.applyChangeSet( ResourceFactory.newUrlResource(url) ); >> kbase = kagent.getKnowledgeBase(); >> ResourceFactory.getResourceChangeNotifierService().start(); >> ResourceFactory.getResourceChangeScannerService().start(); >> System.out.println("knowledge agent created"); >> >> StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); >> System.out.println("session created"); >> FactType factType = kbase.getFactType("procnet.requisition.test", >> "requisition"); >> try { >> Object obj = factType.newInstance(); >> factType.set(obj, "requisitionType", requisitionType); >> factType.set(obj, "totalCost", totalCost); >> FactHandle objHandle = ksession.insert(obj); >> ksession.fireAllRules(); >> System.out.println(factType.get(obj, "approvalMessage")); >> approvalMessage = (String) factType.get(obj, "approvalMessage"); >> //System.out.println(factType.get(obj, "name")); >> } catch (InstantiationException e) { >> e.printStackTrace(); >> } catch (IllegalAccessException e) { >> e.printStackTrace(); >> } >> return approvalMessage; >> This is the exact code i use in a normal java application and it works >> fine,infact even when i run the class as a java application it returns the >> approve message from guvnor. >> I find this strange >> This is the error am getting, >> 02:19:43.040 [WARN] Exception while dispatching incoming RPC >> call >> >> com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract com.planet.requisition.client.rules.RequisitionTemp com.planet.requisition.client.rules.RequisitionTempService.getRequisitionDet(java.lang.String,int)' threw an unexpected exception: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >> >> >> >> >> >> at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385) >> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588) >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >> >> >> >> >> >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >> >> >> >> >> >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >> >> >> >> >> >> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >> >> >> >> >> >> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >> >> >> >> >> >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.Server.handle(Server.java:324) >> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >> >> >> >> >> >> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >> >> >> >> >> >> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >> Caused by: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >> >> >> >> >> >> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >> >> >> >> >> >> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >> at com.requisition.RequisitionApproval.main(RequisitionApproval.java:35) >> at com.requisition.TestInputStream.main(TestInputStream.java:22) >> >> >> >> >> >> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:37) >> 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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >> >> >> >> >> >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >> >> >> >> >> >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >> >> >> >> >> >> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >> >> >> >> >> >> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >> >> >> >> >> >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.Server.handle(Server.java:324) >> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >> >> >> >> >> >> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >> >> >> >> >> >> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >> Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory >> at java.net.URLClassLoader$1.run(Unknown Source) >> at java.security.AccessController.doPrivileged(Native Method) >> >> >> >> >> >> at java.net.URLClassLoader.findClass(Unknown Source) >> at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:372) >> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366) >> >> >> >> >> >> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) >> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >> >> >> >> >> >> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >> >> >> >> >> >> at com.requisition.RequisitionApproval.main(RequisitionApproval.java:35) >> at com.requisition.TestInputStream.main(TestInputStream.java:22) >> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:37) >> >> >> >> >> >> 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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >> >> >> >> >> >> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >> >> >> >> >> >> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> >> >> >> >> >> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >> >> >> >> >> >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >> >> >> >> >> at org.mortbay.jetty.Server.handle(Server.java:324) >> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >> >> >> >> >> >> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >> >> >> >> >> >> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >> >> >> >> On Wed, Sep 11, 2013 at 11:11 AM, Mauricio Salatino <salaboy(a)gmail.com&gt;wrote: >> >>> Hi, we are using GWT and Drools in all our tooling.. For example if you >>> take a look at the kie-wb workbench or the jbpm-console-ng they are create >>> Knowledge Session (kie sessions) right now. >>> >>> >>> On Wed, Sep 11, 2013 at 9:07 AM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: >>> >>>> Hello everyone, >>>> I recently started using Drools Guvnor and i find it necessary. I >>>> create rules on Guvnor and fire the rules in a Java application and >>>> everything is fine. >>>> However when i try to access the rules in a GWT application,i get an >>>> error which looks like none of the Drools code is executed. >>>> My request is if any one has used rules n a GWT application please >>>> help me out >>>> >>>> -- >>>> Moses Kalema >>>> Bachelor Science in Computer Engineering >>>> Software/Mobile/Embedded Systems Developer >>>> +256773391723 >>>> +256704209937 >>>> Skype: mkgremo >>>> Twitter: @mkgremo >>>> "Life's Success is based on Opportunity not Chance" >>>> >>>> >>>> _______________________________________________ >>>> rules-dev mailing list >>>> rules-dev(a)lists.jboss.org >>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>> >>> >>> >>> >>> -- >>> - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> >>> - Co-Founder @ http://www.jugargentina.org >>> - Co-Founder @ http://www.jbug.com.ar >>> >>> - Salatino "Salaboy" Mauricio - >>> >>> _______________________________________________ >>> rules-dev mailing list >>> rules-dev(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/rules-dev >>> >> >> >> >> -- >> Moses Kalema >> Bachelor Science in Computer Engineering >> Software/Mobile/Embedded Systems Developer >> +256773391723 >> +256704209937 >> Skype: mkgremo >> Twitter: @mkgremo >> "Life's Success is based on Opportunity not Chance" >> >> >> _______________________________________________ >> rules-dev mailing list >> rules-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-dev >> > > > > -- > - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> > - Co-Founder @ http://www.jugargentina.org > - Co-Founder @ http://www.jbug.com.ar > > - Salatino "Salaboy" Mauricio - > > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > -- Moses Kalema Bachelor Science in Computer Engineering Software/Mobile/Embedded Systems Developer +256773391723 +256704209937 Skype: mkgremo Twitter: @mkgremo "Life's Success is based on Opportunity not Chance" _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev