Lookup all classes implementing a particular interface

springFindAllClassesByInterface.groovy

import org.springframework.beans.factory.config.BeanDefinition
import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider
import org.springframework.core.type.filter.AssignableTypeFilter
import com.imon.basepackage.StatusCode.*


final ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(false)
provider.addIncludeFilter(new AssignableTypeFilter(StatusCode.class))
final Set<BeanDefinition> components = provider.findCandidateComponents("com.imon.basepackage")

println components.collect { BeanDefinition bd ->
	Class cls = Class.forName(bd.getBeanClassName(), true, Thread.currentThread().contextClassLoader)
    cls.values()
}.flatten { StatusCode code ->
	[name: code.name(), httpCode: code.getHttpCode(), ('api-code'): code.getStatusCode(), ('message'): code.getStatusMessage()]
}