[rules-dev] Drools and GWT Application integration
Mauricio Salatino
salaboy at gmail.com
Wed Sep 11 08:01:07 EDT 2013
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 -
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