[rules-dev] Drools and GWT Application integration
Moses Kalema
mkgremo20 at gmail.com
Wed Sep 11 08:09:58 EDT 2013
I have successful fired the rules.
The issue is that since its a web application you have to add the sl4fj
jars to war/WEB-INF/lib after adding them to the build and class
path.Thanks a lot for your help.I should also thank you on your book.Best
Regards
On Wed, Sep 11, 2013 at 3:01 PM, Mauricio Salatino <salaboy at gmail.com>wrote:
> The project requires 1.7.2 -api and -ext
>
>
> On Wed, Sep 11, 2013 at 12:27 PM, Moses Kalema <mkgremo20 at gmail.com>wrote:
>
>> Build path and class path. version 1.7.5.Do i have to add all other jars
>> in the package?
>>
>>
>> On Wed, Sep 11, 2013 at 2:20 PM, Mauricio Salatino <salaboy at gmail.com>wrote:
>>
>>> Where did you add it? which version?
>>>
>>>
>>> On Wed, Sep 11, 2013 at 12:02 PM, Moses Kalema <mkgremo20 at gmail.com>wrote:
>>>
>>>> I have added it but still get the same error.I can even import that
>>>> class in my code.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 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.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:49)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 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.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:49)
>>>>
>>>> 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 1:05 PM, Mauricio Salatino <salaboy at gmail.com>wrote:
>>>>
>>>>> 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 <mkgremo20 at gmail.com>wrote:
>>>>>
>>>>>> Where can i get?
>>>>>>
>>>>>>
>>>>>> On Wed, Sep 11, 2013 at 12:53 PM, Mauricio Salatino <
>>>>>> salaboy at 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 <mkgremo20 at 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 <
>>>>>>>> salaboy at 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 <mkgremo20 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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"
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