Hi,
I'm using Aries blueprint from karaf 2.2.0 (aries blueprint 0.3) and I'd like
to inject the blueprint bundle context into a bean written in Scala. It seems
it doesn't work because I get the following error when running the container :
org.apache.aries.blueprint - 0.3.0 | Error retrieving service from
ServiceRecipe[name='graphDBConfigService']
org.osgi.service.blueprint.container.ComponentDefinitionException: Unable to
find property descriptor context on class
org.escapek.ekcmdb.core.neo4j.GraphDBConfigurationService
at
org.apache.aries.blueprint.container.BeanRecipe.getPropertyDescriptor(BeanRecipe.java:820)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BeanRecipe.setProperty(BeanRecipe.java:802)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:773)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:754)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:720)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:64)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.di.RefRecipe.internalCreate(RefRecipe.java:60)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:64)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:219)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BlueprintRepository.createInstance(BlueprintRepository.java:198)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.BlueprintRepository.create(BlueprintRepository.java:137)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.ServiceRecipe.createRecipe(ServiceRecipe.java:370)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:278)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.ServiceRecipe.internalGetService(ServiceRecipe.java:248)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.ServiceRecipe.getService(ServiceRecipe.java:327)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.aries.blueprint.container.ServiceRecipe$TriggerServiceFactory.getService(ServiceRecipe.java:430)[10:org.apache.aries.blueprint:0.3.0]
at
org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:310)[org.apache.felix.framework-3.0.8.jar:]
The XML declaration for blueprint is :
<bean id="graphDBConfig"
class="org.escapek.ekcmdb.core.neo4j.GraphDBConfigurationService">
<property name="context" ref="blueprintBundleContext" />
</bean>
GraphDBConfigurationService is a class written in Scala as :
class GraphDBConfigurationService extends ManagedService with Logging
{
var context : BundleContext = _
def updated(properties: Dictionary[_ <: Any,_ <: Any]): Unit = {
}
}
In scala, declaring a var like above is normally equivalent as declaring a
private field in java with getter and setters.
Looking at BeanRecipe source code, I guess the problem comes from
ReflectionUtils.getPropertyDescriptors which doesn't find any property
descriptors, but I don't know why.
Any ideas ? Has anyone tried this with Scala ?
Thanks,
Nicolas.
