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Find all annotated classes in a package using Spring
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| import java.util.LinkedList; | |
| import java.util.List; | |
| import org.slf4j.Logger; | |
| import org.slf4j.LoggerFactory; | |
| import org.springframework.beans.factory.config.BeanDefinition; | |
| import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider; | |
| import org.springframework.context.annotation.Configuration; | |
| import org.springframework.core.type.filter.AnnotationTypeFilter; | |
| import org.springframework.web.context.support.StandardServletEnvironment; | |
| public class Detector { | |
| private static final Logger LOGGER = LoggerFactory.getLogger(Detector.class); | |
| public Class<?>[] findAllConfigurationClassesInPackage(String packageName) { | |
| final List<Class<?>> result = new LinkedList<Class<?>>(); | |
| final ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider( | |
| true, new StandardServletEnvironment()); | |
| provider.addIncludeFilter(new AnnotationTypeFilter(Configuration.class)); | |
| for (BeanDefinition beanDefinition : provider | |
| .findCandidateComponents(packageName)) { | |
| try { | |
| result.add(Class.forName(beanDefinition.getBeanClassName())); | |
| } catch (ClassNotFoundException e) { | |
| LOGGER.warn( | |
| "Could not resolve class object for bean definition", e); | |
| } | |
| } | |
| return result.toArray(new Class<?>[result.size()]); | |
| } | |
| } |
Thank you both!
Exactly what I needed to replace @ServletComponentScan which doesn't work in SpringBoot application running in an external servlet container (finding all @WebServlet annotated classes in my case).
(and may this set of words help someone googling for solution of this problem :) )
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Thanks, worked at first attempt!!
I parametrized the class:
https://gist.github.com/jrichardsz/a34480c1bcc31c45da730c48c4f41331