If you are using maven you will need to add the dependency to your pom
file.. if not you will need to get the jar from somewhere.. like here for
example: http://slf4j.org
On Wed, Sep 11, 2013 at 11:01 AM, Moses Kalema <mkgrem...@gmail.com> wrote:
> Where can i get?
>
>
> On Wed, Sep 11, 2013 at 12:53 PM, Mauricio Salatino <sala...@gmail.com>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 <mkgrem...@gmail.com>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
>>> <sala...@gmail.com>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 <mkgrem...@gmail.com>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@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@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@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@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@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 -
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