Re: [rules-users] Drools With Spring Framework Problem

Tuesday, 20 February 2007

Hi,

WIKI Knowledgebase have a solution for the error
like:org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem;

I have added the JANINO compiler in the PackageBuilderConfiguration in
the Java Code: But It's not resolving my problem and the same error
message is coming:

My Code:

public class RuleBaseBeanFactory implements FactoryBean, InitializingBean {

    private List<Resource> drlResourceList;
    private RuleBase ruleBase;
    private  PackageBuilderConfiguration packageBuilderConfiguration;

	public void setDrlResourceList(List<Resource> drlResourceList) {
        this.drlResourceList = drlResourceList;
    }

    public void afterPropertiesSet() throws Exception {
        Assert.notEmpty(drlResourceList, "drlResourceList must not be empty");
        PackageBuilder builder = (packageBuilderConfiguration != null
? new PackageBuilder(packageBuilderConfiguration) : new
PackageBuilder());
        packageBuilderConfiguration.setCompiler(packageBuilderConfiguration.JANINO);
        for (Resource resource : drlResourceList) {
            builder.addPackageFromDrl(new
InputStreamReader(resource.getInputStream())); // TODO will use
default encoding which might not be wanted
        }
        ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage(builder.getPackage());
    }

    public RuleBase getObject() {
        return ruleBase;
    }

    public Class getObjectType() {
        return RuleBase.class;
    }

    public boolean isSingleton() {
        return true;
    }

    public void
setPackageBuilderConfiguration(PackageBuilderConfiguration
packageBuilderConfiguration) {
        this.packageBuilderConfiguration = packageBuilderConfiguration;
    }
}

Please suggest a solution..

On 2/20/07, Niyas <niyasahmed(a)gmail.com&gt; wrote:
...
 Hi Edson,

 Thanks for your reply.

 Yes, you are correct and I have changed the operator ">" . But I am
 getting some other error now.

 javax.servlet.ServletException: Servlet.init() for servlet insurance
 threw exception
 	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 	java.lang.Thread.run(Thread.java:595)

 root cause

 org.springframework.beans.factory.BeanCreationException: Error
 creating bean with name '/home.htm' defined in ServletContext resource
 [/WEB-INF/insurance-servlet.xml]: Cannot resolve reference to bean
 'ruleBase' while setting bean property 'ruleBase'; nested exception is
 org.springframework.beans.factory.BeanCreationException: Error
 creating bean with name 'ruleBase' defined in ServletContext resource
 [/WEB-INF/insurance-servlet.xml]: Initialization of bean failed;
 nested exception is java.lang.NoSuchMethodError:

org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem;

	org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:190)

	org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1046)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:857)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:378)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:233)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:145)

	org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:537)

	org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:186)

	org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping.initApplicationContext(BeanNameUrlHandlerMapping.java:62)

	org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:73)

	org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:84)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:277)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:395)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:233)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:145)

	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:283)

	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:313)

	org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:139)

	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:306)

	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:251)

	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:220)
 	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:112)
 	javax.servlet.GenericServlet.init(GenericServlet.java:211)
 	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 	java.lang.Thread.run(Thread.java:595)

 And also while I starting the tomcat, in the server console the same
 error message is displaying:

 Feb 20, 2007 5:00:15 PM org.apache.coyote.http11.Http11BaseProtocol start
 INFO: Starting Coyote HTTP/1.1 on http-8080
 Feb 20, 2007 5:00:16 PM org.apache.jk.common.ChannelSocket init
 INFO: JK: ajp13 listening on /0.0.0.0:8009
 Feb 20, 2007 5:00:16 PM org.apache.jk.server.JkMain start
 INFO: Jk running ID=0 time=0/31  config=null
 Feb 20, 2007 5:00:16 PM org.apache.catalina.storeconfig.StoreLoader load
 INFO: Find registry server-registry.xml at classpath resource
 Feb 20, 2007 5:00:16 PM org.apache.catalina.startup.Catalina start
 INFO: Server startup in 9609 ms
 java.lang.NoSuchMethodError:
 org.eclipse.jdt.internal.compiler.CompilationResult
 .getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem;
         at
 org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult(E
 clipseJavaCompiler.java:237)
         at
 org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:335)

         at
 org.apache.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJ
 avaCompiler.java:268)
         at org.drools.compiler.PackageBuilder.compileAll(Unknown Source)
         at org.drools.compiler.PackageBuilder.addPackage(Unknown Source)
         at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown
 Source)
         at
 com.sample.RuleBaseBeanFactory.afterPropertiesSet(RuleBaseBeanFactory
 .java:31)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1091)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.createBean(AbstractAutowireCapableBeanFactory.java:396)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:233)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:145)
         at
 org.springframework.beans.factory.support.BeanDefinitionValueResolver
 .resolveReference(BeanDefinitionValueResolver.java:186)
         at
 org.springframework.beans.factory.support.BeanDefinitionValueResolver
 .resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1046)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.populateBean(AbstractAutowireCapableBeanFactory.java:857)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.createBean(AbstractAutowireCapableBeanFactory.java:378)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:233)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:145)
         at
 org.springframework.context.support.AbstractApplicationContext.getBea
 n(AbstractApplicationContext.java:537)
         at
 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.reg
 isterHandler(AbstractUrlHandlerMapping.java:186)
         at
 org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping.ini
 tApplicationContext(BeanNameUrlHandlerMapping.java:62)
         at
 org.springframework.context.support.ApplicationObjectSupport.setAppli
 cationContext(ApplicationObjectSupport.java:73)
         at
 org.springframework.context.support.ApplicationContextAwareProcessor.
 postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:84)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanF
 actory.java:277)
         at
 org.springframework.beans.factory.support.AbstractAutowireCapableBean
 Factory.createBean(AbstractAutowireCapableBeanFactory.java:395)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:233)
         at
 org.springframework.beans.factory.support.AbstractBeanFactory.getBean
 (AbstractBeanFactory.java:145)
         at
 org.springframework.beans.factory.support.DefaultListableBeanFactory.
 preInstantiateSingletons(DefaultListableBeanFactory.java:283)
         at
 org.springframework.context.support.AbstractApplicationContext.refres
 h(AbstractApplicationContext.java:313)
         at
 org.springframework.web.context.support.AbstractRefreshableWebApplica
 tionContext.refresh(AbstractRefreshableWebApplicationContext.java:139)
         at
 org.springframework.web.servlet.FrameworkServlet.createWebApplication
 Context(FrameworkServlet.java:306)
         at
 org.springframework.web.servlet.FrameworkServlet.initWebApplicationCo
 ntext(FrameworkServlet.java:251)
         at
 org.springframework.web.servlet.FrameworkServlet.initServletBean(Fram
 eworkServlet.java:220)
         at
 org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.
 java:112)
         at javax.servlet.GenericServlet.init(GenericServlet.java:211)
         at
 org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
 java:1105)
         at
 org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.jav
 a:757)
         at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
 alve.java:130)
         at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
 alve.java:178)
         at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
 ava:126)
         at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
 ava:105)
         at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
 ve.java:107)
         at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
 a:148)
         at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
 :869)
         at
 org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p
 rocessConnection(Http11BaseProtocol.java:664)
         at
 org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
 int.java:527)
         at
 org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFol
 lowerWorkerThread.java:80)
         at
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
 ool.java:684)
         at java.lang.Thread.run(Thread.java:595)

 On 2/20/07, Edson Tirelli <tirelli(a)post.com&gt; wrote:
 >
 >     Hi Niyas,
 >
 >     This is something I faced yesterday but did not had the time to work
 > on it yet. Basically, 2 problems:
 >
 > 1. Error message is crap... we need to improve that.
 >
 > 2. It should not be raising any error. The error means you have a String
 > attribute you are trying to compare using operators like >, <, >=, <=.
 > Example:
 >
 > Person( name > 'Edson' )
 >
 >     And I think the above should work but is not working. I will open a
 > JIRA for that.
 >     Meanwhile, if you need to have such constraint, a workaround is to
 > use a predicate:
 >
 > Person( $n : name, ( $n.compareTo( 'Edson' ) > 0 ) )
 >
 >     []s
 >     Edson
 >
 >
 > Niyas wrote:
 >
 > > I have tried of using the sample coding given the link given by you:
 > > But i am getting the following error:
 > > org.springframework.beans.factory.BeanCreationException: Error
 > > creating bean with name 'ruleBase' defined in ServletContext resource
 > > [/WEB-INF/insurance-servlet.xml]: Initialization of bean failed;
 > > nested exception is java.lang.RuntimeException: Operator '40' does not
 > > exist for StringEvaluator
 > >
 >

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:403)
 > >
 > >
 >

org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:233)
 > >
 > >
 >

org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:145)
 > >
 > >
 >

org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:277)
 > >
 > >
 >

org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:313)
 > >
 > >
 >

org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:139)
 > >
 > >
 >

org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:306)
 > >
 > >
 >

org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:251)
 > >
 > >
 >

org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:220)
 > >
 > >
 >
 org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:112)
 > >
 > >     javax.servlet.GenericServlet.init(GenericServlet.java:211)
 > >
 >
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 > >
 > >
 >
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 > >
 > >
 > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 > >
 > >
 >

org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 > >
 > >
 >
 org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 > >
 > >
 >

org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 > >
 > >
 >
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 > >
 > >     java.lang.Thread.run(Thread.java:595)
 > > ========================================================
 > > My insurance-servlet.xml:
 > > <beans>
 > >     <!-- default handlermapping -->
 > >     <bean id="beanNameUrlMapping"
 > >
 >
 class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
 > >
 > >
 > >     <bean name="/home.htm"
class="com.sample.InsuranceController"
 > > singleton="false">
 > >         <property name="ruleBase">
 > >             <ref bean="ruleBase"/>
 > >         </property>
 > >         <property name="insurBean">
 > >             <ref bean="insurance"/>
 > >         </property>
 > >     </bean>
 > >
 > >     <!-- View Resolver -->
 > >     <bean id="viewResolver"
 > >
 class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 > >
 > >         <property name="prefix">
 > >             <value>/WEB-INF/jsp/</value>
 > >         </property>
 > >         <property name="suffix">
 > >             <value>.jsp</value>
 > >         </property>
 > >     </bean>
 > >
 > >     <!-- Bean -->
 > >     <bean id="insurance"
class="com.sample.InsuranceBean"/>
 > >
 > >
 > >     <bean id="ruleBase"
class="com.sample.RuleBaseBeanFactory">
 > >         <property name="drlResourceList">
 > >             <list>
 > >                 <value
 > >
 >

type="org.springframework.core.io.Resource">classpath:/com/sample/Approval.drl</value>
 > >
 > >             </list>
 > >         </property>
 > >
 > >         <property name="packageBuilderConfiguration">
 > >             <bean
 > > class="org.drools.compiler.PackageBuilderConfiguration">
 > >                 <property name="javaLanguageLevel"
value="1.5"/>
 > >             </bean>
 > >         </property>
 > >     </bean>
 > > </beans>
 > >
 > >
 > >
 > > On 2/19/07, Olenin, Vladimir (MOH) <Vladimir.Olenin(a)moh.gov.on.ca&gt;
 wrote:
 > >
 > >> Check out 'Spring Modules' subproject - it has a DROOLS
integration
 > >> module.
 > >> Haven't used it myself yet, so not sure whether it's
 > >> mature/compatible with
 > >> most recent release.
 > >>
 > >>
 >
 https://springmodules.dev.java.net/docs/reference/0.7/html/jsr94.html#d0e570
 > >>
 > >> 9
 > >>
 > >> https://springmodules.dev.java.net/
 > >>
 > >> Vlad
 > >>
 > >>
 > >> -----Original Message-----
 > >> From: rules-users-bounces(a)lists.jboss.org
 > >> [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Niyas
 > >> Sent: 19 February 2007 09:49
 > >> To: rules-users(a)lists.jboss.org
 > >> Subject: [rules-users] Drools With Spring Framework Problem
 > >>
 > >> Hi all,
 > >>
 > >> I am in need of integrating Drools JBoss Rule Engine with Spring
 > >> Framework.
 > >> I have tried sample rule engine examples in the Drools in the
 > >> standalone with the help od drools IDE for eclipse 3.2.
 > >> And I also tried some example in the Spring Framework,to know how it
 > >> works. I have tried some examples in IOC, MVC and JDBC in the spring
 > >> framework.
 > >>
 > >> Now, I want to use both Drools and Spring Framework in such a way that
 > >> Spring will have the MVC application and it should validate the rules,
 > >> which written in the drools (.drl)
 > >>
 > >> I don't know how to begin with/what are he configuration files needed
 > >> to setup. PLease if anyone have the sample coding on Drools with
 > >> Spring or any other links willl be very useful.
 > >>
 > >> And also, guide me what are the things need to be know for Spring with
 > >> Drools. While I have searched in google, lots of things came up like:
 > >>
 > >> Use JSR94... (which is mentioning to configure RuleServiceProvider,
 > >> RuleRuntime, RuleSet..and others..which seeme to be confusing and not
 > >> clear)
 > >>
 > >> Whether there are any API for drools with spring that DROOLS is
 > >> supporting..like org.drools.spring.metadata.ArgumentMetadataSource. I
 > >> don't find these Drools API section
 > >>
 >
 http://labs.jboss.com/file-access/default/members/jbossrules/freezone/docs/3
 > >>
 > >> .0.5/apidocs/index.html
 > >> _______________________________________________
 > >> rules-users mailing list
 > >> rules-users(a)lists.jboss.org
 > >> https://lists.jboss.org/mailman/listinfo/rules-users
 > >> _______________________________________________
 > >> rules-users mailing list
 > >> rules-users(a)lists.jboss.org
 > >> https://lists.jboss.org/mailman/listinfo/rules-users
 > >>
 > > _______________________________________________
 > > rules-users mailing list
 > > rules-users(a)lists.jboss.org
 > > https://lists.jboss.org/mailman/listinfo/rules-users
 > >
 >
 >
 > --
 >  Edson Tirelli
 >  Software Engineer - JBoss Rules Core Developer
 >  Office: +55 11 3124-6000
 >  Mobile: +55 11 9218-4151
 >  JBoss, a division of Red Hat @ www.jboss.com
 >
 >
 > _______________________________________________
 > rules-users mailing list
 > rules-users(a)lists.jboss.org
 > https://lists.jboss.org/mailman/listinfo/rules-users
 >

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Re: [rules-users] Drools With Spring Framework Problem