Re: [rules-users] OSGI, classloading, and imports in KnowledgeBuilder
> Can anyone sketch a setup so that I can use Drools from within
an
Eclipse
> plugin?
I've got it running. You need to make sure your classloaders are the
right ones.
I use the
new PackageBuilderConfiguration(Classloader, Properties)
ctor (if you're setting CL later, Properties may fail to apply) and
new RuleBaseConfiguration(Classloader)
respectively. I guess the knowledge-based apis have matching ctors. I
use the classloader of my project, which imports the needed drools
namespaces. That last part may need some time, but I's doable.
I have tried the following:
KnowledgeBuilderConfiguration builderConfiguration =
KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(null,
getClass().getClassLoader());
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder(builderConfiguration);
Resource pathResource = ResourceFactory.newClassPathResource(path,
getClass());
kbuilder.add(pathResource, ResourceType.DTABLE, dtableconfiguration);
However it still fails ...
Does this compare to what you are doing? Are you able to do DecisionTables
as well?
regards
Lasse