package org.infinispan.cdi.common.util.annotatedtypebuilder;
import java.lang.annotation.Annotation;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.infinispan.cdi.common.util.Reflections;
import org.infinispan.cdi.common.util.logging.Log;
import org.infinispan.commons.logging.LogFactory;
/**
* Helper class used to build annotation stores
*
* @author Stuart Douglas
*/
public class AnnotationBuilder {
private static final Log log = LogFactory.getLog(AnnotationBuilder.class, Log.class);
private final Map<Class<? extends Annotation>, Annotation> annotationMap;
private final Set<Annotation> annotationSet;
AnnotationBuilder() {
this.annotationMap = new HashMap<Class<? extends Annotation>, Annotation>();
this.annotationSet = new HashSet<Annotation>();
}
public AnnotationBuilder add(Annotation annotation) {
if (annotation == null) {
throw log.parameterMustNotBeNull("annotation");
}
annotationSet.add(annotation);
annotationMap.put(annotation.annotationType(), annotation);
return this;
}
public AnnotationBuilder remove(Class<? extends Annotation> annotationType) {
if (annotationType == null) {
throw log.parameterMustNotBeNull("annotationType");
}
Iterator<Annotation> it = annotationSet.iterator();
while (it.hasNext()) {
Annotation an = it.next();
if (annotationType.isAssignableFrom(an.annotationType())) {
it.remove();
}
}
annotationMap.remove(annotationType);
return this;
}
AnnotationStore create() {
return new AnnotationStore(annotationMap, annotationSet);
}
public AnnotationBuilder addAll(AnnotationStore annotations) {
for (Annotation annotation : annotations.getAnnotations()) {
add(annotation);
}
return this;
}
public <T extends Annotation> T getAnnotation(Class<T> anType) {
return Reflections.cast(annotationMap.get(anType));
}
public boolean isAnnotationPresent(Class<?> annotationType) {
return annotationMap.containsKey(annotationType);
}
@Override
public String toString() {
return annotationSet.toString();
}
}