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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.introspector.jlr;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Sets;
import org.jboss.weld.introspector.ConstructorSignature;
import org.jboss.weld.introspector.DiscoveredExternalAnnotatedType;
import org.jboss.weld.introspector.ExternalAnnotatedType;
import org.jboss.weld.introspector.MethodSignature;
import org.jboss.weld.introspector.TypeClosureLazyValueHolder;
import org.jboss.weld.introspector.WeldClass;
import org.jboss.weld.introspector.WeldConstructor;
import org.jboss.weld.introspector.WeldField;
import org.jboss.weld.introspector.WeldMethod;
import org.jboss.weld.resources.ClassTransformer;
import org.jboss.weld.resources.SharedObjectFacade;
import org.jboss.weld.util.LazyValueHolder;
import org.jboss.weld.util.collections.ArraySet;
import org.jboss.weld.util.collections.ArraySetMultimap;
import org.jboss.weld.util.reflection.Formats;
import org.jboss.weld.util.reflection.Reflections;
import org.jboss.weld.util.reflection.SecureReflections;
import javax.enterprise.inject.spi.AnnotatedConstructor;
import javax.enterprise.inject.spi.AnnotatedField;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.AnnotatedParameter;
import javax.enterprise.inject.spi.AnnotatedType;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Represents an annotated class
*
* This class is immutable, and therefore threadsafe
*
* @param the type of the class
* @author Pete Muir
* @author David Allen
*/
public class WeldClassImpl extends AbstractWeldAnnotated> implements WeldClass {
// Class attributes
private final WeldClass superclass;
// The set of abstracted fields
private final Set> fields;
// The map from annotation type to abstracted field with annotation
private final ArrayListMultimap, WeldField> annotatedFields;
// The set of abstracted fields
private final ArraySet> declaredFields;
// The map from annotation type to abstracted field with annotation
private final ArrayListMultimap, WeldField> declaredAnnotatedFields;
// The map from annotation type to abstracted field with meta-annotation
private final ArrayListMultimap, WeldField> declaredMetaAnnotatedFields;
// The set of abstracted methods
private final Set> methods;
// The map from annotation type to abstracted method with annotation
private final ArrayListMultimap, WeldMethod> annotatedMethods;
// The set of abstracted methods
private final ArraySet> declaredMethods;
// The map from annotation type to abstracted method with annotation
private final ArrayListMultimap, WeldMethod> declaredAnnotatedMethods;
// The map from annotation type to method with a parameter with annotation
private final ArrayListMultimap, WeldMethod> declaredMethodsByAnnotatedParameters;
// The set of abstracted constructors
private final ArraySet> constructors;
private final Map> declaredConstructorsBySignature;
// The meta-annotation map (annotation type -> set of annotations containing
// meta-annotation) of the item
private final ArraySetMultimap, Annotation> declaredMetaAnnotationMap;
private final boolean discovered;
public static WeldClass of(Class clazz, ClassTransformer classTransformer) {
return new WeldClassImpl(clazz, clazz, null, new TypeClosureLazyValueHolder(clazz), buildAnnotationMap(clazz.getAnnotations()), buildAnnotationMap(clazz.getDeclaredAnnotations()), classTransformer);
}
public static WeldClass of(AnnotatedType annotatedType, ClassTransformer classTransformer) {
return new WeldClassImpl(annotatedType.getJavaClass(), annotatedType.getBaseType(), annotatedType, new TypeClosureLazyValueHolder(annotatedType.getTypeClosure()), buildAnnotationMap(annotatedType.getAnnotations()), buildAnnotationMap(annotatedType.getAnnotations()), classTransformer);
}
public static WeldClass of(Class rawType, Type type, ClassTransformer classTransformer) {
return new WeldClassImpl(rawType, type, null, new TypeClosureLazyValueHolder(type), buildAnnotationMap(rawType.getAnnotations()), buildAnnotationMap(rawType.getDeclaredAnnotations()), classTransformer);
}
protected WeldClassImpl(Class rawType, Type type, AnnotatedType annotatedType, LazyValueHolder> typeClosure, Map, Annotation> annotationMap, Map, Annotation> declaredAnnotationMap, ClassTransformer classTransformer) {
super(annotationMap, declaredAnnotationMap, classTransformer, rawType, type, typeClosure);
boolean modified;
if (annotatedType instanceof DiscoveredExternalAnnotatedType) {
discovered = true;
modified = true;
} else if (annotatedType instanceof ExternalAnnotatedType) {
discovered = false;
modified = false;
} else {
discovered = true;
modified = false;
}
if (modified) {
this.superclass = classTransformer.loadClass(Object.class);
} else if (rawType.getSuperclass() != null) {
this.superclass = classTransformer.loadClass(rawType.getSuperclass());
} else {
this.superclass = null;
}
// Assign class field information
this.declaredAnnotatedFields = ArrayListMultimap., WeldField>create();
this.declaredMetaAnnotatedFields = ArrayListMultimap., WeldField>create();
Set> fieldsTemp = null;
ArrayList> declaredFieldsTemp = new ArrayList>();
if (annotatedType == null) {
this.annotatedFields = null;
if (rawType != Object.class) {
for (Field field : SecureReflections.getDeclaredFields(rawType)) {
WeldField annotatedField = WeldFieldImpl.of(field, this.getDeclaringWeldClass(field, classTransformer), classTransformer);
declaredFieldsTemp.add(annotatedField);
for (Annotation annotation : annotatedField.getAnnotations()) {
this.declaredAnnotatedFields.put(annotation.annotationType(), annotatedField);
for (Annotation metaAnnotation : annotation.annotationType().getAnnotations()) {
this.declaredMetaAnnotatedFields.put(metaAnnotation.annotationType(), annotatedField);
}
}
}
fieldsTemp = new ArraySet>(declaredFieldsTemp).trimToSize();
if ((superclass != null) && (superclass.getJavaClass() != Object.class)) {
fieldsTemp = Sets.union(fieldsTemp, Reflections.>>cast(superclass.getFields()));
}
}
this.declaredFields = new ArraySet>(declaredFieldsTemp);
} else {
this.annotatedFields = ArrayListMultimap., WeldField>create();
fieldsTemp = new HashSet>();
for (AnnotatedField annotatedField : annotatedType.getFields()) {
WeldField weldField = WeldFieldImpl.of(annotatedField, this, classTransformer);
fieldsTemp.add(weldField);
if (annotatedField.getDeclaringType().getJavaClass() == rawType) {
declaredFieldsTemp.add(weldField);
}
for (Annotation annotation : weldField.getAnnotations()) {
this.annotatedFields.put(annotation.annotationType(), weldField);
if (annotatedField.getDeclaringType().getJavaClass() == rawType) {
this.declaredAnnotatedFields.put(annotation.annotationType(), weldField);
for (Annotation metaAnnotation : annotation.annotationType().getAnnotations()) {
this.declaredMetaAnnotatedFields.put(metaAnnotation.annotationType(), weldField);
}
}
}
}
this.declaredFields = new ArraySet>(declaredFieldsTemp);
fieldsTemp = new ArraySet>(fieldsTemp).trimToSize();
this.annotatedFields.trimToSize();
}
this.fields = fieldsTemp;
this.declaredFields.trimToSize();
this.declaredAnnotatedFields.trimToSize();
this.declaredMetaAnnotatedFields.trimToSize();
// Assign constructor information
this.constructors = new ArraySet>();
this.declaredConstructorsBySignature = new HashMap>();
if (annotatedType == null) {
for (Constructor constructor : SecureReflections.getDeclaredConstructors(rawType)) {
Constructor c = Reflections.cast(constructor);
WeldConstructor annotatedConstructor = WeldConstructorImpl.of(c, this.getDeclaringWeldClass(c, classTransformer), classTransformer);
this.constructors.add(annotatedConstructor);
this.declaredConstructorsBySignature.put(annotatedConstructor.getSignature(), annotatedConstructor);
}
} else {
for (AnnotatedConstructor constructor : annotatedType.getConstructors()) {
WeldConstructor weldConstructor = WeldConstructorImpl.of(constructor, this, classTransformer);
this.constructors.add(weldConstructor);
List> parameterTypes = new ArrayList>();
for (AnnotatedParameter parameter : constructor.getParameters()) {
parameterTypes.add(Reflections.getRawType(parameter.getBaseType()));
}
this.declaredConstructorsBySignature.put(weldConstructor.getSignature(), weldConstructor);
}
}
this.constructors.trimToSize();
// Assign method information
this.declaredAnnotatedMethods = ArrayListMultimap., WeldMethod>create();
this.declaredMethodsByAnnotatedParameters = ArrayListMultimap., WeldMethod>create();
Set> methodsTemp = null;
ArrayList> declaredMethodsTemp = new ArrayList>();
if (annotatedType == null) {
this.annotatedMethods = null;
if (rawType != Object.class) {
for (Method method : SecureReflections.getDeclaredMethods(rawType)) {
WeldMethod weldMethod = WeldMethodImpl.of(method, this.getDeclaringWeldClass(method, classTransformer), classTransformer);
declaredMethodsTemp.add(weldMethod);
for (Annotation annotation : weldMethod.getAnnotations()) {
this.declaredAnnotatedMethods.put(annotation.annotationType(), weldMethod);
}
for (Class annotationType : WeldMethod.MAPPED_PARAMETER_ANNOTATIONS) {
if (weldMethod.getWeldParameters(annotationType).size() > 0) {
this.declaredMethodsByAnnotatedParameters.put(annotationType, weldMethod);
}
}
}
methodsTemp = new ArraySet>(declaredMethodsTemp).trimToSize();
if (superclass != null) {
WeldClass current = superclass;
while (current.getJavaClass() != Object.class) {
Set> superClassMethods = Reflections.cast(current.getDeclaredWeldMethods());
methodsTemp = Sets.union(methodsTemp, superClassMethods);
current = current.getWeldSuperclass();
}
}
}
this.declaredMethods = new ArraySet>(declaredMethodsTemp);
} else {
this.annotatedMethods = ArrayListMultimap., WeldMethod>create();
methodsTemp = new HashSet>();
for (AnnotatedMethod method : annotatedType.getMethods()) {
WeldMethod weldMethod = WeldMethodImpl.of(method, this, classTransformer);
methodsTemp.add(weldMethod);
if (method.getDeclaringType().getJavaClass() == rawType) {
declaredMethodsTemp.add(weldMethod);
}
for (Annotation annotation : weldMethod.getAnnotations()) {
annotatedMethods.put(annotation.annotationType(), weldMethod);
if (method.getDeclaringType().getJavaClass() == rawType) {
this.declaredAnnotatedMethods.put(annotation.annotationType(), weldMethod);
}
}
for (Class annotationType : WeldMethod.MAPPED_PARAMETER_ANNOTATIONS) {
if (weldMethod.getWeldParameters(annotationType).size() > 0) {
if (method.getDeclaringType().getJavaClass() == rawType) {
this.declaredMethodsByAnnotatedParameters.put(annotationType, weldMethod);
}
}
}
}
this.declaredMethods = new ArraySet>(declaredMethodsTemp);
methodsTemp = new ArraySet>(methodsTemp).trimToSize();
this.annotatedMethods.trimToSize();
}
this.methods = methodsTemp;
this.declaredMethods.trimToSize();
this.declaredAnnotatedMethods.trimToSize();
this.declaredMethodsByAnnotatedParameters.trimToSize();
ArraySetMultimap, Annotation> declaredMetaAnnotationMap = new ArraySetMultimap, Annotation>();
for (Annotation declaredAnnotation : declaredAnnotationMap.values()) {
addMetaAnnotations(declaredMetaAnnotationMap, declaredAnnotation, declaredAnnotation.annotationType().getAnnotations(), true);
addMetaAnnotations(declaredMetaAnnotationMap, declaredAnnotation, classTransformer.getTypeStore().get(declaredAnnotation.annotationType()), true);
declaredMetaAnnotationMap.putSingleElement(declaredAnnotation.annotationType(), declaredAnnotation);
}
declaredMetaAnnotationMap.trimToSize();
this.declaredMetaAnnotationMap = SharedObjectFacade.wrap(declaredMetaAnnotationMap);
}
private WeldClass getDeclaringWeldClass(Member member, ClassTransformer transformer) {
if (member.getDeclaringClass().equals(getJavaClass())) {
return cast(this);
} else {
return transformer.loadClass(Reflections.>cast(member.getDeclaringClass()));
}
}
/**
* Gets the implementing class
*
* @return The class
*/
public Class getAnnotatedClass() {
return getJavaClass();
}
/**
* Gets the delegate (class)
*
* @return The class
*/
@Override
public Class getDelegate() {
return getJavaClass();
}
/**
* Gets the abstracted fields of the class
*
* Initializes the fields if they are null
*
* @return The set of abstracted fields
*/
public Collection> getWeldFields() {
return Collections.unmodifiableCollection(fields);
}
public Collection> getDeclaredFields() {
return Collections.unmodifiableCollection(declaredFields);
}
public WeldField getDeclaredWeldField(String fieldName) {
for (WeldField field : declaredFields) {
if (field.getName().equals(fieldName)) {
return cast(field);
}
}
return null;
}
public Collection> getDeclaredWeldFields(Class annotationType) {
return Collections.unmodifiableCollection(declaredAnnotatedFields.get(annotationType));
}
public WeldConstructor getDeclaredWeldConstructor(ConstructorSignature signature) {
return cast(declaredConstructorsBySignature.get(signature));
}
/**
* Gets the abstracted field annotated with a specific annotation type
*
* If the fields map is null, initialize it first
*
* @param annotationType The annotation type to match
* @return A set of matching abstracted fields, null if none are found.
*/
public Collection> getWeldFields(Class annotationType) {
if (annotatedFields == null) {
// Build collection from class hierarchy
ArrayList> aggregatedFields = new ArrayList>(this.declaredAnnotatedFields.get(annotationType));
if ((superclass != null) && (superclass.getJavaClass() != Object.class)) {
aggregatedFields.addAll(superclass.getWeldFields(annotationType));
}
return Collections.unmodifiableCollection(aggregatedFields);
} else {
// Return results collected directly from AnnotatedType
return Collections.unmodifiableCollection(annotatedFields.get(annotationType));
}
}
public boolean isLocalClass() {
return getJavaClass().isLocalClass();
}
public boolean isAnonymousClass() {
return getJavaClass().isAnonymousClass();
}
public boolean isMemberClass() {
return getJavaClass().isMemberClass();
}
public boolean isAbstract() {
return Modifier.isAbstract(getJavaClass().getModifiers());
}
public boolean isEnum() {
return getJavaClass().isEnum();
}
public boolean isSerializable() {
return Reflections.isSerializable(getJavaClass());
}
/**
* Gets the abstracted methods that have a certain annotation type present
*
* If the annotated methods map is null, initialize it first
*
* @param annotationType The annotation type to match
* @return A set of matching method abstractions. Returns an empty set if no
* matches are found.
* @see org.jboss.weld.introspector.WeldClass#getWeldMethods(Class)
*/
public Collection> getWeldMethods(Class annotationType) {
if (annotatedMethods == null) {
ArrayList> aggregateMethods = new ArrayList>(this.declaredAnnotatedMethods.get(annotationType));
if ((superclass != null) && (superclass.getJavaClass() != Object.class)) {
aggregateMethods.addAll(superclass.getDeclaredWeldMethods(annotationType));
}
return Collections.unmodifiableCollection(aggregateMethods);
} else {
return Collections.unmodifiableCollection(annotatedMethods.get(annotationType));
}
}
public Collection> getDeclaredWeldMethods(Class annotationType) {
return Collections.unmodifiableCollection(declaredAnnotatedMethods.get(annotationType));
}
/**
* Gets constructors with given annotation type
*
* @param annotationType The annotation type to match
* @return A set of abstracted constructors with given annotation type. If
* the constructors set is empty, initialize it first. Returns an
* empty set if there are no matches.
* @see org.jboss.weld.introspector.WeldClass#getWeldConstructors(Class)
*/
public Collection> getWeldConstructors(Class annotationType) {
Set> ret = new HashSet>();
for (WeldConstructor constructor : constructors) {
if (constructor.isAnnotationPresent(annotationType)) {
ret.add(constructor);
}
}
return ret;
}
public WeldConstructor getNoArgsWeldConstructor() {
for (WeldConstructor constructor : constructors) {
if (constructor.getJavaMember().getParameterTypes().length == 0) {
return constructor;
}
}
return null;
}
public Collection> getDeclaredWeldMethodsWithAnnotatedParameters(Class annotationType) {
return Collections.unmodifiableCollection(declaredMethodsByAnnotatedParameters.get(annotationType));
}
public WeldMethod getWeldMethod(Method methodDescriptor) {
// TODO Should be cached
for (WeldMethod annotatedMethod : getWeldMethods()) {
if (annotatedMethod.getName().equals(methodDescriptor.getName()) && Arrays.equals(annotatedMethod.getParameterTypesAsArray(), methodDescriptor.getParameterTypes())) {
return annotatedMethod;
}
}
return null;
}
public Collection> getWeldMethods() {
return Collections.unmodifiableSet(methods);
}
public WeldMethod getDeclaredWeldMethod(Method method) {
// TODO Should be cached
for (WeldMethod annotatedMethod : declaredMethods) {
if (annotatedMethod.getName().equals(method.getName()) && Arrays.equals(annotatedMethod.getParameterTypesAsArray(), method.getParameterTypes())) {
return annotatedMethod;
}
}
return null;
}
public Collection> getDeclaredWeldMethods() {
return Collections.unmodifiableSet(declaredMethods);
}
public WeldMethod getDeclaredWeldMethod(MethodSignature signature) {
for (WeldMethod method : declaredMethods) {
if (method.getSignature().equals(signature)) {
return cast(method);
}
}
return null;
}
public WeldMethod getWeldMethod(MethodSignature signature) {
WeldMethod method = cast(getDeclaredWeldMethod(signature));
if ((method == null) && (superclass != null) && (superclass.getJavaClass() != Object.class)) {
method = superclass.getWeldMethod(signature);
}
return method;
}
/**
* Gets a string representation of the class
*
* @return A string representation
*/
@Override
public String toString() {
return Formats.formatModifiers(getJavaClass().getModifiers()) + Formats.formatAnnotations(getAnnotations()) + " class " + getName() + Formats.formatActualTypeArguments(getActualTypeArguments());
}
public String getSimpleName() {
return getJavaClass().getSimpleName();
}
/**
* Indicates if the type is static
*
* @return True if static, false otherwise
* @see org.jboss.weld.introspector.WeldAnnotated#isStatic()
*/
public boolean isStatic() {
return Reflections.isStatic(getDelegate());
}
/**
* Indicates if the type if final
*
* @return True if final, false otherwise
* @see org.jboss.weld.introspector.WeldAnnotated#isFinal()
*/
public boolean isFinal() {
return Reflections.isFinal(getDelegate());
}
public boolean isPublic() {
return Modifier.isFinal(getJavaClass().getModifiers());
}
public boolean isGeneric() {
return getJavaClass().getTypeParameters().length > 0;
}
/**
* Gets the name of the type
*
* @returns The name
* @see org.jboss.weld.introspector.WeldAnnotated#getName()
*/
public String getName() {
return getJavaClass().getName();
}
/**
* Gets the superclass abstraction of the type
*
* @return The superclass abstraction
*/
public WeldClass getWeldSuperclass() {
return superclass;
}
public boolean isEquivalent(Class clazz) {
return getDelegate().equals(clazz);
}
public boolean isPrivate() {
return Modifier.isPrivate(getJavaClass().getModifiers());
}
public boolean isPackagePrivate() {
return Reflections.isPackagePrivate(getJavaClass().getModifiers());
}
public Package getPackage() {
return getJavaClass().getPackage();
}
public WeldClass asWeldSubclass(WeldClass clazz) {
return cast(this);
}
public S cast(Object object) {
return Reflections.cast(object);
}
public Set> getConstructors() {
return Collections.unmodifiableSet(Reflections.>>cast(constructors));
}
public Set> getFields() {
return cast(fields);
}
public Set> getMethods() {
return cast(methods);
}
public Set getDeclaredMetaAnnotations(Class metaAnnotationType) {
return Collections.unmodifiableSet(new ArraySet(declaredMetaAnnotationMap.get(metaAnnotationType)));
}
public boolean isDiscovered() {
return discovered;
}
}
