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package com.sun.enterprise.deployment.annotation.factory;
import org.glassfish.apf.*;
import org.glassfish.apf.factory.Factory;
import org.glassfish.apf.impl.AnnotationProcessorImpl;
import org.glassfish.api.ContractProvider;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PostConstruct;
import org.glassfish.hk2.api.ServiceLocator;
import javax.inject.Singleton;
import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.Set;
/**
* This factory is responsible for initializing a ready to use
* AnnotationProcessor.
*
* @author Shing Wai Chan
*/
@Service
@Singleton
public class SJSASFactory extends Factory implements ContractProvider, PostConstruct {
@Inject
ServiceLocator habitat;
private Set<String> annotationClassNames = new HashSet<String>();
private AnnotationProcessorImpl systemProcessor=null;
public AnnotationProcessor getAnnotationProcessor() {
AnnotationProcessorImpl processor =
Factory.getDefaultAnnotationProcessor();
processor.setDelegate(systemProcessor);
return processor;
}
@SuppressWarnings("unchecked")
public Set<String> getAnnotations() {
return (HashSet<String>)((HashSet<String>)annotationClassNames).clone();
}
public static String getAnnotationHandlerForStringValue(Class<?> onMe) {
AnnotationHandlerFor ahf = onMe.getAnnotation(AnnotationHandlerFor.class);
if (ahf == null) return null;
return ahf.value().getName();
}
public void postConstruct() {
if (systemProcessor == null) {
// initialize our system annotation processor...
systemProcessor = new AnnotationProcessorImpl();
for (final AnnotationHandler i : habitat.<AnnotationHandler>getAllServices(AnnotationHandler.class)) {
String annotationTypeName = getAnnotationHandlerForStringValue(i.getClass());
if (annotationTypeName == null) continue;
systemProcessor.pushAnnotationHandler(annotationTypeName, new AnnotationHandler() {
@Override
public Class<? extends Annotation> getAnnotationType() {
final AnnotationHandler realHandler = i;
return realHandler.getAnnotationType();
}
@Override
public HandlerProcessingResult processAnnotation(AnnotationInfo element) throws AnnotationProcessorException {
final AnnotationHandler realHandler = i;
return realHandler.processAnnotation(element);
}
@Override
public Class<? extends Annotation>[] getTypeDependencies() {
final AnnotationHandler realHandler = i;
return realHandler.getTypeDependencies();
}
});
annotationClassNames.add("L" +
annotationTypeName.
replace('.', '/') + ";");
}
}
}
}