1 Reply Latest reply on May 14, 2014 4:01 AM by salaboy21

Using Kie in Google App Engine

avirakone May 13, 2014 9:38 PM

Hi,

Is there anyway to get Kie 6.0 to run with Google AppEngine? I know there's a solution with Red Piranha, https://code.google.com/p/red-piranha/wiki/ModifyDroolsRunInGoogleAppEngine, out there that works with Drools 5.5.0, but I kinda do want to use the new PHREAK algorithm that 6.0 uses and I'm not sure that the solution from red piranha will work with 6.0. Anyways here's my stack trace when I try to run the following code in App Engine devserver.

Thanks,

Eric

public class Account

{

private int balance;

public Account()

{

super();

}

public Account(int balance)

{

super();

this.balance = balance;

}

/**

* @return the balance

public int getBalance()

{

return balance;

}

/**

* @param balance

* the balance to set

public void setBalance(int balance)

{

this.balance = balance;

}

public void withdraw(int money)

{

balance -= money;

}

public class SampleBusinessObject extends BaseBusinessObject

{

public void testDrools()

{

KieServices kieServices = KieServices.Factory.get();

KieContainer kContainer = kieServices.getKieClasspathContainer();

KieSession kSession = kContainer.newKieSession();

Account account = new Account(200);

FactHandle accountFact = kSession.insert(account);

kSession.fireAllRules();

account.withdraw(250);

kSession.update(accountFact, account);

kSession.fireAllRules();

}

[INFO] May 13, 2014 9:24:24 PM com.google.apphosting.utils.jetty.JettyLogger warn

[INFO] WARNING: /rest/mock/testDrools

[INFO] java.lang.NoClassDefFoundError: sun.reflect.ReflectionFactory is a restricted class. Please see the Google App Engine developer's guide for more details.

[INFO] at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)

[INFO] at com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider.<init>(Sun14ReflectionProvider.java:61)

[INFO] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

[INFO] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

[INFO] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

[INFO] at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

[INFO] at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:127)

[INFO] at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:148)

[INFO] at com.thoughtworks.xstream.core.JVM.bestReflectionProvider(JVM.java:241)

[INFO] at com.thoughtworks.xstream.XStream.<init>(XStream.java:438)

[INFO] at com.thoughtworks.xstream.XStream.<init>(XStream.java:381)

[INFO] at com.thoughtworks.xstream.XStream.<init>(XStream.java:356)

[INFO] at org.drools.compiler.kproject.models.KieModuleModelImpl$kModuleMarshaller.<init>(KieModuleModelImpl.java:133)

[INFO] at org.drools.compiler.kproject.models.KieModuleModelImpl$kModuleMarshaller.<init>(KieModuleModelImpl.java:132)

[INFO] at org.drools.compiler.kproject.models.KieModuleModelImpl.<clinit>(KieModuleModelImpl.java:130)

[INFO] at java.lang.Class.forName0(Native Method)

[INFO] at java.lang.Class.forName(Class.java:190)

[INFO] at com.google.appengine.tools.development.agent.runtime.RuntimeHelper.checkRestricted(RuntimeHelper.java:70)

[INFO] at com.google.appengine.tools.development.agent.runtime.Runtime.checkRestricted(Runtime.java:64)

[INFO] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.discoverKieModules(ClasspathKieProject.java:72)

[INFO] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.init(ClasspathKieProject.java:63)

[INFO] at org.drools.compiler.kie.builder.impl.KieContainerImpl.<init>(KieContainerImpl.java:77)

[INFO] at org.drools.compiler.kie.builder.impl.KieServicesImpl.getKieClasspathContainer(KieServicesImpl.java:64)

[INFO] at com.paradoxai.yummy.businessobjects.SampleBusinessObject.testDrools(SampleBusinessObject.java:20)

[INFO] at com.paradoxai.yummy.service.MockDataService.testDrools(MockDataService.java:31)

[INFO] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

[INFO] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

[INFO] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

[INFO] at java.lang.reflect.Method.invoke(Method.java:606)

[INFO] at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115)

[INFO] at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)

[INFO] at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)

[INFO] at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)

[INFO] at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)

[INFO] at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)

[INFO] at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)

[INFO] at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)

[INFO] at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)

[INFO] at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)

[INFO] at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)

[INFO] at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)

[INFO] at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)

[INFO] at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)

[INFO] at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)

[INFO] at org.codehaus.enunciate.modules.jersey.EnunciateJerseyServletContainer.service(EnunciateJerseyServletContainer.java:250)

[INFO] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

[INFO] at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)

[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)

[INFO] at org.codehaus.enunciate.webapp.HTTPRequestContextFilter.doFilter(HTTPRequestContextFilter.java:36)