[rules-users] Spring 4.0 & Drools 6.0.1 Integration issue

[kmansoor]

Hi All- I'm trying to use Drools in a Spring 4 applications. Trying to inject
a StatelessSession in a Spring bean:

@Service
public class RulesServiceImpl implements RulesService {
	@Inject()
	private StatelessKieSession kStatelessSession;

...
}

This results in:
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException:
No qualifying bean of type [org.kie.api.runtime.StatelessKieSession] found
for dependency: expected at least 1 bean which qualifies as autowire
candidate for this dependency. Dependency annotations:
{@javax.inject.Inject()}

pom.xml is as follows:

<kie.version>6.0.1.Final</kie.version>
<drools.version>6.0.1.Final</drools.version>

                <dependency>
			<groupId>org.kie</groupId>
			<artifactId>kie-api</artifactId>
			<version>${kie.version}</version>
		</dependency>
		<dependency>
			<groupId>org.kie</groupId>
			<artifactId>kie-internal</artifactId>
			<version>${kie.version}</version>
		</dependency>
		<dependency>
			<groupId>org.drools</groupId>
			<artifactId>drools-core</artifactId>
			<version>${drools.version}</version>
		</dependency>
		<dependency>
			<groupId>org.drools</groupId>
			<artifactId>drools-compiler</artifactId>
			<version>${drools.version}</version>
		</dependency>
		<dependency>
			<groupId>org.kie</groupId>
			<artifactId>kie-spring</artifactId>
			<version>${kie.version}</version>
		</dependency>

and applicationContext.xml:

        <kie:kmodule id="kmodule1">
		<kie:kbase name="kbase1" packages="rules">
			<kie:ksession name="ksession1" type="stateless" />
		</kie:kbase>
	</kie:kmodule>

	<bean id="kiePostProcessor"
class="org.kie.spring.KModuleBeanFactoryPostProcessor" />


I also tried the other route:

        @PostConstruct
	public void setUp() {
		KieServices kieServices = KieServices.Factory.get();
		KieContainer kContainer = kieServices.getKieClasspathContainer();

		kStatelessSession = kContainer.newStatelessKieSession("ksession1");
	}

This results in NullPointerException:

Caused by: java.lang.NullPointerException
	at
org.drools.compiler.kie.builder.impl.KieContainerImpl.newStatelessKieSession(KieContainerImpl.java:444)
	at
org.drools.compiler.kie.builder.impl.KieContainerImpl.newStatelessKieSession(KieContainerImpl.java:435)
	at
ca.utoronto.med.dc.webcv.service.RulesServiceImpl.setUp(RulesServiceImpl.java:27)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at
org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349)
	at
org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:300)
	at
org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133)
	... 23 more

I do see the following in the console:
2014-02-10 20:05:06,263 DEBUG
org.drools.compiler.kie.builder.impl.ClasspathKieProject.getPomProperties(210): 
- Found and used pom.properties
\work\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\dcwebcv\META-INF\maven\ca.utoronto.med.dc\dcwebcv\pom.properties
releaseId == ca.utoronto.med.dc:dcwebcv:1.0-SNAPSHOT
2014-02-10 20:05:06,407 INFO 
org.drools.compiler.kie.builder.impl.KieRepositoryImpl.addKieModule(72):  -
KieModule was added:FileKieModule[
ReleaseId=ca.utoronto.med.dc:dcwebcv:1.0-SNAPSHOTfile=\work\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\dcwebcv\WEB-INF\classes]

Any pointer will be highly appreciated.



--
View this message in context: http://drools.46999.n3.nabble.com/Spring-4-0-Drools-6-0-1-Integration-issue-tp4028052.html
Sent from the Drools: User forum mailing list archive at Nabble.com.