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package org.jboss.weld.tests.extensions.supertypes.beans;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Set;

import javax.enterprise.inject.spi.Annotated;

/**
 * Implements the CDI Annotated interface.
 *
 * @author robc
 */
public abstract class AnnotatedImpl implements Annotated {

    private Type baseType;
    private Set<Type> typeClosure;
    private Set<Annotation> annotations;

    public AnnotatedImpl(Type baseType, Set<Type> typeClosure, Set<Annotation> annotations) {
        this.baseType = baseType;
        this.typeClosure = Collections.unmodifiableSet(typeClosure);
        this.annotations = Collections.unmodifiableSet(annotations);
    }

    public <T extends Annotation> T getAnnotation(java.lang.Class<T> annotationType) {
        for (Annotation a : annotations) {
            if (annotationType.isInstance(a)) {
                return annotationType.cast(a);
            }
        }
        return null;
    }

    public Set<Annotation> getAnnotations() {
        return annotations;
    }

    public Type getBaseType() {
        return baseType;
    }

    public Set<Type> getTypeClosure() {
        return typeClosure;
    }

    public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) {
        return getAnnotation(annotationType) != null;
    }
}