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/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.weld.annotated.enhanced.jlr;
import static org.jboss.weld.util.collections.WeldCollections.immutableMapView;
import static org.jboss.weld.util.reflection.Reflections.EMPTY_ANNOTATIONS;
import java.lang.annotation.Annotation;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.enterprise.inject.spi.Annotated;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.inject.Qualifier;
import org.jboss.weld.annotated.enhanced.EnhancedAnnotated;
import org.jboss.weld.annotated.slim.SlimAnnotatedType;
import org.jboss.weld.literal.DefaultLiteral;
import org.jboss.weld.logging.ReflectionLogger;
import org.jboss.weld.resources.ClassTransformer;
import org.jboss.weld.util.collections.Arrays2;
import org.jboss.weld.util.collections.ImmutableSet;
import org.jboss.weld.util.collections.Multimap;
import org.jboss.weld.util.collections.Multimaps;
import org.jboss.weld.util.collections.SetMultimap;
import org.jboss.weld.util.reflection.Reflections;
/**
* Represents functionality common for all annotated items, mainly different
* mappings of the annotations and meta-annotations
*
* AbstractAnnotatedItem is an immutable class and therefore threadsafe
*
* @param
* @param
* @author Pete Muir
* @author Nicklas Karlsson
* @see org.jboss.weld.annotated.enhanced.EnhancedAnnotated
*/
public abstract class AbstractEnhancedAnnotated implements EnhancedAnnotated {
// The set of default binding types
private static final Set DEFAULT_QUALIFIERS = Collections.singleton(DefaultLiteral.INSTANCE);
/**
* Builds the annotation map (annotation type -> annotation)
*
* @param annotations The array of annotations to map
* @return The annotation map
*/
protected static Map, Annotation> buildAnnotationMap(Annotation[] annotations) {
Map, Annotation> annotationMap = new HashMap, Annotation>();
for (Annotation annotation : annotations) {
annotationMap.put(annotation.annotationType(), annotation);
}
return annotationMap;
}
/**
* Builds the annotation map (annotation type -> annotation)
*
* @param annotations The array of annotations to map
* @return The annotation map
*/
protected static Map, Annotation> buildAnnotationMap(Iterable annotations) {
Map, Annotation> annotationMap = new HashMap, Annotation>();
for (Annotation annotation : annotations) {
annotationMap.put(annotation.annotationType(), annotation);
}
return annotationMap;
}
protected static void addMetaAnnotations(SetMultimap, Annotation> metaAnnotationMap, Annotation annotation, Annotation[] metaAnnotations, boolean declared) {
for (Annotation metaAnnotation : metaAnnotations) {
addMetaAnnotation(metaAnnotationMap, annotation, metaAnnotation.annotationType(), declared);
}
}
protected static void addMetaAnnotations(SetMultimap, Annotation> metaAnnotationMap, Annotation annotation, Iterable metaAnnotations, boolean declared) {
for (Annotation metaAnnotation : metaAnnotations) {
addMetaAnnotation(metaAnnotationMap, annotation, metaAnnotation.annotationType(), declared);
}
}
private static void addMetaAnnotation(SetMultimap, Annotation> metaAnnotationMap, Annotation annotation, Class metaAnnotationType, boolean declared) {
// Only map meta-annotations we are interested in
if (declared ? MAPPED_DECLARED_METAANNOTATIONS.contains(metaAnnotationType) : MAPPED_METAANNOTATIONS.contains(metaAnnotationType)) {
metaAnnotationMap.put(metaAnnotationType, annotation);
}
}
// The annotation map (annotation type -> annotation) of the item
private final Map, Annotation> annotationMap;
// The meta-annotation map (annotation type -> set of annotations containing
// meta-annotation) of the item
private final Multimap, Annotation> metaAnnotationMap;
private final Class rawType;
private final Type[] actualTypeArguments;
private final Annotated delegate;
/**
* Constructor
*
* Also builds the meta-annotation map. Throws a NullPointerException if
* trying to register a null map
*
* @param annotationMap A map of annotation to register
*/
public AbstractEnhancedAnnotated(Annotated annotated, Map, Annotation> annotationMap, Map, Annotation> declaredAnnotationMap, ClassTransformer classTransformer) {
this.delegate = annotated;
if (annotated instanceof AnnotatedType) {
this.rawType = Reflections.>cast(annotated).getJavaClass();
} else {
this.rawType = Reflections.getRawType(annotated.getBaseType());
}
if (annotationMap == null) {
throw ReflectionLogger.LOG.annotationMapNull();
}
this.annotationMap = immutableMapView(annotationMap);
SetMultimap, Annotation> metaAnnotationMap = SetMultimap.newSetMultimap();
for (Annotation annotation : annotationMap.values()) {
// WELD-1310 Include synthetic annotations
SlimAnnotatedType syntheticAnnotationAnnotatedType = classTransformer
.getSyntheticAnnotationAnnotatedType(annotation.annotationType());
if (syntheticAnnotationAnnotatedType == null) {
addMetaAnnotations(metaAnnotationMap, annotation,
classTransformer.getReflectionCache().getAnnotations(annotation.annotationType()), false);
} else {
addMetaAnnotations(metaAnnotationMap, annotation, syntheticAnnotationAnnotatedType.getAnnotations(), false);
}
addMetaAnnotations(metaAnnotationMap, annotation, classTransformer.getTypeStore().get(annotation.annotationType()), false);
}
this.metaAnnotationMap = Multimaps.unmodifiableMultimap(metaAnnotationMap);
if (declaredAnnotationMap == null) {
throw ReflectionLogger.LOG.declaredAnnotationMapNull();
}
if (delegate.getBaseType() instanceof ParameterizedType) {
this.actualTypeArguments = ((ParameterizedType) delegate.getBaseType()).getActualTypeArguments();
} else {
this.actualTypeArguments = Arrays2.EMPTY_TYPE_ARRAY;
}
}
public Class getJavaClass() {
return rawType;
}
public Type[] getActualTypeArguments() {
return Arrays.copyOf(actualTypeArguments, actualTypeArguments.length);
}
public Set getInterfaceClosure() {
Set interfaces = new HashSet();
for (Type t : getTypeClosure()) {
if (Reflections.getRawType(t).isInterface()) {
interfaces.add(t);
}
}
return Collections.unmodifiableSet(interfaces);
}
public abstract S getDelegate();
public boolean isParameterizedType() {
return rawType.getTypeParameters().length > 0;
}
public boolean isPrimitive() {
return getJavaClass().isPrimitive();
}
public Type getBaseType() {
return delegate.getBaseType();
}
public Set getTypeClosure() {
return delegate.getTypeClosure();
}
public Set getAnnotations() {
return ImmutableSet.copyOf(annotationMap.values());
}
public Set getMetaAnnotations(Class metaAnnotationType) {
return ImmutableSet.copyOf(metaAnnotationMap.get(metaAnnotationType));
}
@Deprecated
public Set getQualifiers() {
if (getMetaAnnotations(Qualifier.class).size() > 0) {
return Collections.unmodifiableSet(getMetaAnnotations(Qualifier.class));
} else {
return DEFAULT_QUALIFIERS;
}
}
@Deprecated
public Annotation[] getBindingsAsArray() {
return getQualifiers().toArray(EMPTY_ANNOTATIONS);
}
public A getAnnotation(Class annotationType) {
return annotationType.cast(annotationMap.get(annotationType));
}
public boolean isAnnotationPresent(Class annotationType) {
return annotationMap.containsKey(annotationType);
}
Map, Annotation> getAnnotationMap() {
return annotationMap;
}
}
