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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.util;
import java.lang.annotation.Annotation;
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;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.decorator.Decorator;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Alternative;
import javax.enterprise.inject.CreationException;
import javax.enterprise.inject.Disposes;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.inject.Inject;
import com.google.common.base.Predicate;
import com.google.common.base.Supplier;
import com.google.common.collect.Collections2;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import org.jboss.weld.Container;
import org.jboss.weld.bean.AbstractReceiverBean;
import org.jboss.weld.bean.DecoratorImpl;
import org.jboss.weld.bean.InterceptorImpl;
import org.jboss.weld.bean.RIBean;
import org.jboss.weld.bean.SessionBean;
import org.jboss.weld.ejb.EJBApiAbstraction;
import org.jboss.weld.exceptions.DefinitionException;
import org.jboss.weld.exceptions.IllegalArgumentException;
import org.jboss.weld.injection.ConstructorInjectionPoint;
import org.jboss.weld.injection.FieldInjectionPoint;
import org.jboss.weld.injection.MethodInjectionPoint;
import org.jboss.weld.injection.ParameterInjectionPoint;
import org.jboss.weld.injection.WeldInjectionPoint;
import org.jboss.weld.injection.spi.EjbInjectionServices;
import org.jboss.weld.injection.spi.JpaInjectionServices;
import org.jboss.weld.injection.spi.ResourceInjectionServices;
import org.jboss.weld.interceptor.InterceptorBindingType;
import org.jboss.weld.interceptor.spi.model.InterceptionType;
import org.jboss.weld.interceptor.util.InterceptionTypeRegistry;
import org.jboss.weld.introspector.MethodSignature;
import org.jboss.weld.introspector.WeldAnnotated;
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.introspector.WeldParameter;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.manager.Enabled;
import org.jboss.weld.metadata.cache.MergedStereotypes;
import org.jboss.weld.metadata.cache.MetaAnnotationStore;
import org.jboss.weld.persistence.PersistenceApiAbstraction;
import org.jboss.weld.resolution.QualifierInstance;
import org.jboss.weld.util.collections.ArraySet;
import org.jboss.weld.util.collections.HashSetSupplier;
import org.jboss.weld.util.reflection.Reflections;
import org.slf4j.cal10n.LocLogger;
import static java.util.Arrays.asList;
import static org.jboss.weld.logging.Category.BEAN;
import static org.jboss.weld.logging.LoggerFactory.loggerFactory;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_DEFAULT_CONSTRUCTOR;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_INJECTABLE_CONSTRUCTORS;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_ONE_INJECTABLE_CONSTRUCTOR;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_ONE_POST_CONSTRUCT_METHOD;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_ONE_PRE_DESTROY_METHOD;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_POST_CONSTRUCT_METHODS;
import static org.jboss.weld.logging.messages.BeanMessage.FOUND_PRE_DESTROY_METHODS;
import static org.jboss.weld.logging.messages.EventMessage.INVALID_INITIALIZER;
import static org.jboss.weld.logging.messages.UtilMessage.AMBIGUOUS_CONSTRUCTOR;
import static org.jboss.weld.logging.messages.UtilMessage.ANNOTATION_NOT_QUALIFIER;
import static org.jboss.weld.logging.messages.UtilMessage.INITIALIZER_CANNOT_BE_DISPOSAL_METHOD;
import static org.jboss.weld.logging.messages.UtilMessage.INITIALIZER_CANNOT_BE_PRODUCER;
import static org.jboss.weld.logging.messages.UtilMessage.INITIALIZER_METHOD_IS_GENERIC;
import static org.jboss.weld.logging.messages.UtilMessage.INVALID_QUANTITY_INJECTABLE_FIELDS_AND_INITIALIZER_METHODS;
import static org.jboss.weld.logging.messages.UtilMessage.QUALIFIER_ON_FINAL_FIELD;
import static org.jboss.weld.logging.messages.UtilMessage.REDUNDANT_QUALIFIER;
import static org.jboss.weld.logging.messages.UtilMessage.TOO_MANY_POST_CONSTRUCT_METHODS;
import static org.jboss.weld.logging.messages.UtilMessage.TOO_MANY_PRE_DESTROY_METHODS;
import static org.jboss.weld.logging.messages.UtilMessage.UNABLE_TO_FIND_CONSTRUCTOR;
import static org.jboss.weld.util.reflection.Reflections.EMPTY_ANNOTATIONS;
/**
* Helper class for bean inspection
*
* @author Pete Muir
* @author David Allen
* @author Marius Bogoevici
* @author Ales Justin
* @author Marko Luksa
*/
public class Beans {
// TODO Convert messages
private static final LocLogger log = loggerFactory().getLogger(BEAN);
/**
* Oracle JDK 8 compiler (unlike prev versions) generates bridge methods which have method and parameter annotations copied from the original method.
* However such methods should not become observers, producers, disposers, initializers and lifecycle callbacks.
*
* This predicate determines true if the given method is not a bridge method.
*
* @see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6695379
*/
@SuppressWarnings("rawtypes")
private static final Predicate BRIDGE_METHOD_FILTER_PREDICATE = new Predicate() {
@Override
public boolean apply(WeldMethod method) {
return !method.getJavaMember().isBridge();
}
};
/**
* Indicates if a bean's scope type is passivating
*
* @param bean The bean to inspect
* @return True if the scope is passivating, false otherwise
*/
public static boolean isPassivatingScope(Bean bean, BeanManagerImpl manager) {
if (bean == null) {
return false;
} else if (bean instanceof SessionBean) {
return ((SessionBean) bean).getEjbDescriptor().isStateful();
} else {
return manager.getServices().get(MetaAnnotationStore.class).getScopeModel(bean.getScope()).isPassivating();
}
}
/**
* Tests if a bean is capable of having its state temporarily stored to
* secondary storage
*
* @param bean The bean to inspect
* @return True if the bean is passivation capable
*/
public static boolean isPassivationCapableBean(Bean bean) {
if (bean instanceof RIBean) {
return ((RIBean) bean).isPassivationCapableBean();
} else {
return Reflections.isSerializable(bean.getBeanClass());
}
}
/**
* Tests if a bean is capable of having its state temporarily stored to
* secondary storage
*
* @param bean The bean to inspect
* @return True if the bean is passivation capable
*/
public static boolean isPassivationCapableDependency(Bean bean) {
if (bean instanceof RIBean) {
return ((RIBean) bean).isPassivationCapableDependency();
} else {
if (isNormalScoped(bean)) {
return true;
} else if (bean.getScope().equals(Dependent.class) && isPassivationCapableBean(bean)) {
return true;
} else {
return false;
}
}
}
public static boolean isNormalScoped(Bean bean) {
return Container.instance().services().get(MetaAnnotationStore.class).getScopeModel(bean.getScope()).isNormal();
}
/**
* Indicates if a bean is proxyable
*
* @param bean The bean to test
* @return True if proxyable, false otherwise
*/
public static boolean isBeanProxyable(Bean bean) {
if (bean instanceof RIBean) {
return ((RIBean) bean).isProxyable();
} else {
return Proxies.isTypesProxyable(bean.getTypes());
}
}
public static List>> getFieldInjectionPoints(Bean declaringBean, WeldClass weldClass) {
if (weldClass.isModified()) {
return getFieldInjectionPointsFromWeldFields(declaringBean, weldClass);
} else {
return getFieldInjectionPointsFromDeclaredFields(declaringBean, weldClass);
}
}
private static List>> getFieldInjectionPointsFromWeldFields(Bean declaringBean, WeldClass weldClass) {
Collection> allFields = weldClass.getWeldFields(Inject.class);
List>> injectableFields = new ArrayList>>();
Class clazz = weldClass.getJavaClass();
while (clazz != null) {
ArraySet> set = new ArraySet>();
for (WeldField field : allFields) {
Class declaringClass = field.getJavaMember().getDeclaringClass();
if (declaringClass.equals(clazz)) {
addFieldInjectionPoint(declaringBean, weldClass, field, set);
}
}
set.trimToSize();
injectableFields.add(0, set);
clazz = clazz.getSuperclass();
}
return injectableFields;
}
private static List>> getFieldInjectionPointsFromDeclaredFields(Bean declaringBean, WeldClass weldClass) {
List>> list = new ArrayList>>();
WeldClass c = weldClass;
while (c != null && !c.getJavaClass().equals(Object.class)) {
ArraySet> injectionPoints = new ArraySet>();
for (WeldField field : c.getDeclaredWeldFields(Inject.class)) {
addFieldInjectionPoint(declaringBean, weldClass, field, injectionPoints);
}
injectionPoints.trimToSize();
list.add(0, injectionPoints);
c = c.getWeldSuperclass();
}
return list;
}
private static void addFieldInjectionPoint(Bean declaringBean, WeldClass weldClass, WeldField field, Set> injectionPoints) {
if (isInjectableField(field)) {
validateInjectableField(field);
injectionPoints.add(FieldInjectionPoint.of(declaringBean, weldClass, field));
}
}
private static boolean isInjectableField(WeldField field) {
return !field.isStatic() && !field.isAnnotationPresent(Produces.class);
}
private static void validateInjectableField(WeldField field) {
if (field.isFinal()) {
throw new DefinitionException(QUALIFIER_ON_FINAL_FIELD, field);
}
}
public static Set> mergeFieldInjectionPoints(List>> fieldInjectionPoints) {
ArraySet> injectionPoints = new ArraySet>();
for (Set> i : fieldInjectionPoints) {
injectionPoints.addAll(i);
}
return injectionPoints.trimToSize();
}
public static List> getPostConstructMethods(WeldClass type) {
WeldClass t = type;
List> methods = new ArrayList>();
while (!t.getJavaClass().equals(Object.class)) {
Collection> declaredMethods = filterOutOverriddenAndBridgeMethods(type, Reflections.>>cast(t.getDeclaredWeldMethods(PostConstruct.class)));
log.trace(FOUND_POST_CONSTRUCT_METHODS, declaredMethods, type);
if (declaredMethods.size() > 1) {
throw new DefinitionException(TOO_MANY_POST_CONSTRUCT_METHODS, type);
} else if (declaredMethods.size() == 1) {
WeldMethod method = declaredMethods.iterator().next();
log.trace(FOUND_ONE_POST_CONSTRUCT_METHOD, method, type);
methods.add(0, method);
}
t = t.getWeldSuperclass();
}
return methods;
}
private static Collection> filterOutOverriddenAndBridgeMethods(WeldClass type, Collection> methods) {
Collection> filteredMethods = new ArrayList>();
for (WeldMethod method : methods) {
if (!type.isMethodOverridden(method) && BRIDGE_METHOD_FILTER_PREDICATE.apply(method)) {
filteredMethods.add(method);
}
}
return Collections.unmodifiableCollection(filteredMethods);
}
public static List> getObserverMethods(WeldClass type) {
List> observerMethods = new ArrayList>();
// Keep track of all seen methods so we can ignore overridden methods
Multimap seenMethods = Multimaps.newSetMultimap(new HashMap>(),
new Supplier>() {
public Set get() {
return new HashSet();
}
});
WeldClass t = type;
while (t != null && !t.getJavaClass().equals(Object.class)) {
for (WeldMethod method : Collections2.filter(t.getDeclaredWeldMethods(), BRIDGE_METHOD_FILTER_PREDICATE)) {
if (!isOverridden(method, seenMethods) && !method.getWeldParameters(Observes.class).isEmpty()) {
observerMethods.add(method);
}
seenMethods.put(method.getSignature(), method.getPackage());
}
t = t.getWeldSuperclass();
}
return observerMethods;
}
public static List> getPreDestroyMethods(WeldClass type) {
WeldClass t = type;
List> methods = new ArrayList>();
while (!t.getJavaClass().equals(Object.class)) {
Collection> declaredMethods = filterOutOverriddenAndBridgeMethods(type, Reflections.>>cast(t.getDeclaredWeldMethods(PreDestroy.class)));
log.trace(FOUND_PRE_DESTROY_METHODS, declaredMethods, type);
if (declaredMethods.size() > 1) {
throw new DefinitionException(TOO_MANY_PRE_DESTROY_METHODS, type);
} else if (declaredMethods.size() == 1) {
WeldMethod method = declaredMethods.iterator().next();
log.trace(FOUND_ONE_PRE_DESTROY_METHOD, method, type);
methods.add(0, method);
}
t = t.getWeldSuperclass();
}
return methods;
}
public static List> getInterceptableMethods(WeldClass type) {
List> annotatedMethods = new ArrayList>();
for (WeldMethod annotatedMethod : type.getWeldMethods()) {
boolean businessMethod = !annotatedMethod.isStatic()
&& !annotatedMethod.isAnnotationPresent(Inject.class)
&& !annotatedMethod.getJavaMember().isBridge();
if (businessMethod && !isInterceptorMethod(annotatedMethod)) {
annotatedMethods.add(annotatedMethod);
}
}
return annotatedMethods;
}
private static boolean isInterceptorMethod(WeldMethod annotatedMethod) {
for (InterceptionType interceptionType : InterceptionTypeRegistry.getSupportedInterceptionTypes()) {
if (annotatedMethod.isAnnotationPresent(InterceptionTypeRegistry.getAnnotationClass(interceptionType)))
return true;
}
return false;
}
public static Set> getEjbInjectionPoints(Bean declaringBean, WeldClass type, BeanManagerImpl manager) {
if (manager.getServices().contains(EjbInjectionServices.class)) {
Class ejbAnnotationType = manager.getServices().get(EJBApiAbstraction.class).EJB_ANNOTATION_CLASS;
return getInjectionPoints(declaringBean, type, ejbAnnotationType);
} else {
return Collections.emptySet();
}
}
public static Set> getPersistenceContextInjectionPoints(Bean declaringBean, WeldClass type, BeanManagerImpl manager) {
if (manager.getServices().contains(JpaInjectionServices.class)) {
Class persistenceContextAnnotationType = manager.getServices().get(PersistenceApiAbstraction.class).PERSISTENCE_CONTEXT_ANNOTATION_CLASS;
return getInjectionPoints(declaringBean, type, persistenceContextAnnotationType);
} else {
return Collections.emptySet();
}
}
public static Set> getPersistenceUnitInjectionPoints(Bean declaringBean, WeldClass type, BeanManagerImpl manager) {
if (manager.getServices().contains(JpaInjectionServices.class)) {
Class persistenceUnitAnnotationType = manager.getServices().get(PersistenceApiAbstraction.class).PERSISTENCE_UNIT_ANNOTATION_CLASS;
return getInjectionPoints(declaringBean, type, persistenceUnitAnnotationType);
} else {
return Collections.emptySet();
}
}
public static Set> getResourceInjectionPoints(Bean declaringBean, WeldClass type, BeanManagerImpl manager) {
if (manager.getServices().contains(ResourceInjectionServices.class)) {
Class resourceAnnotationType = manager.getServices().get(EJBApiAbstraction.class).RESOURCE_ANNOTATION_CLASS;
return getInjectionPoints(declaringBean, type, resourceAnnotationType);
} else {
return Collections.emptySet();
}
}
private static Set> getInjectionPoints(Bean declaringBean, WeldClass type, Class annotationType) {
ArraySet> set = new ArraySet>();
for (WeldField field : type.getWeldFields(annotationType)) {
set.add(FieldInjectionPoint.of(declaringBean, type, field));
}
return set.trimToSize();
}
public static List>> getInitializerMethods(Bean declaringBean, WeldClass weldClass) {
if (weldClass.isModified()) {
return getInitializerMethodsFromWeldMethods(declaringBean, weldClass);
} else {
return getInitializerMethodsFromDeclaredMethods(declaringBean, weldClass);
}
}
private static List>> getInitializerMethodsFromWeldMethods(Bean declaringBean, WeldClass weldClass) {
List>> initializerMethods = new ArrayList>>();
// Keep track of all seen methods so we can ignore overridden methods
Multimap seenMethods = Multimaps.newSetMultimap(new HashMap>(), HashSetSupplier.instance());
Class clazz = weldClass.getJavaClass();
while (clazz != null) {
ArraySet> set = new ArraySet>();
for (WeldMethod weldMethod : Collections2.filter(weldClass.getWeldMethods(), BRIDGE_METHOD_FILTER_PREDICATE)) {
if (weldMethod.getJavaMember().getDeclaringClass().equals(clazz)) {
processPossibleInitializerMethod(declaringBean, weldClass, weldMethod, seenMethods, set);
}
}
set.trimToSize();
initializerMethods.add(0, set);
clazz = clazz.getSuperclass();
}
return initializerMethods;
}
public static List>> getInitializerMethodsFromDeclaredMethods(Bean declaringBean, WeldClass weldClass) {
List>> list = new ArrayList>>();
// Keep track of all seen methods so we can ignore overridden methods
Multimap seenMethods = Multimaps.newSetMultimap(new HashMap>(), HashSetSupplier.instance());
WeldClass clazz = weldClass;
while (clazz != null && !clazz.getJavaClass().equals(Object.class)) {
ArraySet> set = new ArraySet>();
Collection declaredWeldMethods = Collections2.filter(clazz.getDeclaredWeldMethods(), BRIDGE_METHOD_FILTER_PREDICATE);
for (WeldMethod method : (Collection>) declaredWeldMethods) {
processPossibleInitializerMethod(declaringBean, weldClass, method, seenMethods, set);
}
set.trimToSize();
list.add(0, set);
clazz = clazz.getWeldSuperclass();
}
return list;
}
private static void processPossibleInitializerMethod(Bean declaringBean, WeldClass injectionTargetClass, WeldMethod method, Multimap seenMethods, ArraySet> set) {
if (isInitializerMethod(method)) {
validateInitializerMethod(method, injectionTargetClass);
if (!isOverridden(method, seenMethods)) {
set.add(MethodInjectionPoint.of(declaringBean, method));
}
}
seenMethods.put(method.getSignature(), method.getPackage());
}
private static boolean isInitializerMethod(WeldMethod method) {
return method.isAnnotationPresent(Inject.class) && !method.isStatic();
}
private static void validateInitializerMethod(WeldMethod method, WeldClass type) {
if (method.getAnnotation(Produces.class) != null) {
throw new DefinitionException(INITIALIZER_CANNOT_BE_PRODUCER, method, type);
} else if (method.getWeldParameters(Disposes.class).size() > 0) {
throw new DefinitionException(INITIALIZER_CANNOT_BE_DISPOSAL_METHOD, method, type);
} else if (method.getWeldParameters(Observes.class).size() > 0) {
throw new DefinitionException(INVALID_INITIALIZER, method);
} else if (method.isGeneric()) {
throw new DefinitionException(INITIALIZER_METHOD_IS_GENERIC, method, type);
}
}
private static boolean isOverridden(WeldMethod method, Multimap seenMethods) {
if (method.isPrivate()) {
return false;
} else if (method.isPackagePrivate() && seenMethods.containsKey(method.getSignature())) {
return seenMethods.get(method.getSignature()).contains(method.getPackage());
} else {
return seenMethods.containsKey(method.getSignature());
}
}
public static Set> getParameterInjectionPoints(Bean declaringBean, WeldConstructor constructor) {
ArraySet> injectionPoints = new ArraySet>();
for (WeldParameter parameter : constructor.getWeldParameters()) {
injectionPoints.add(ParameterInjectionPoint.of(declaringBean, parameter));
}
return injectionPoints.trimToSize();
}
public static Set> getParameterInjectionPoints(Bean declaringBean, MethodInjectionPoint method) {
ArraySet> injectionPoints = new ArraySet>();
for (WeldParameter parameter : method.getWeldParameters()) {
if (parameter.isAnnotationPresent(Disposes.class)) {
continue; // disposes parameter is not an injection point
}
injectionPoints.add(ParameterInjectionPoint.of(declaringBean, parameter));
}
return injectionPoints.trimToSize();
}
public static Set> getParameterInjectionPoints(Bean declaringBean, List>> methodInjectionPoints) {
ArraySet> injectionPoints = new ArraySet>();
for (Set> i : methodInjectionPoints) {
for (MethodInjectionPoint method : i) {
for (WeldParameter parameter : method.getWeldParameters()) {
injectionPoints.add(ParameterInjectionPoint.of(declaringBean, parameter));
}
}
}
return injectionPoints.trimToSize();
}
/**
* Checks that all the qualifiers in the set requiredQualifiers are in the set
* of qualifiers. Qualifier equality rules for annotation members are followed.
*
* @param requiredQualifiers The required qualifiers
* @param qualifiers The set of qualifiers to check
* @return True if all matches, false otherwise
*/
public static boolean containsAllQualifiers(Set requiredQualifiers, Set qualifiers, BeanManagerImpl beanManager) {
return qualifiers.containsAll(requiredQualifiers);
}
public static boolean containsAllInterceptionBindings(Set expectedBindings, Set existingBindings, BeanManagerImpl manager) {
final Set expected = manager.extractInterceptorBindingsForQualifierInstance(QualifierInstance.qualifiers(manager, expectedBindings));
return manager.extractInterceptorBindingsForQualifierInstance(existingBindings).containsAll(expected);
}
public static boolean findInterceptorBindingConflicts(Set flattenedBindings) {
Map, InterceptorBindingType> foundAnnotations = new HashMap, InterceptorBindingType>();
for (InterceptorBindingType binding : flattenedBindings) {
if (foundAnnotations.containsKey(binding.annotationType())) {
if (!binding.equals(foundAnnotations.get(binding.annotationType()))) {
return true;
}
} else {
foundAnnotations.put(binding.annotationType(), binding);
}
}
return false;
}
/**
* Retains only beans which have deployment type X.
*
* The deployment type X is
*
* @param beans The beans to filter
* @param beanManager the bean manager
* @return The filtered beans
*/
public static > Set removeDisabledAndSpecializedBeans(Set beans, BeanManagerImpl beanManager) {
if (beans.size() == 0) {
return beans;
} else {
Set result = new HashSet();
for (T bean : beans) {
if (isBeanEnabled(bean, beanManager.getEnabled()) && !isSpecialized(bean, beans, beanManager) && !isSuppressedBySpecialization(bean, beanManager)) {
result.add(bean);
}
}
return result;
}
}
public static boolean isBeanEnabled(Bean bean, Enabled enabled) {
if (bean.isAlternative()) {
if (enabled.getAlternativeClass(bean.getBeanClass()) != null) {
return true;
} else {
for (Class stereotype : bean.getStereotypes()) {
if (enabled.getAlternativeStereotype(stereotype) != null) {
return true;
}
}
return false;
}
} else if (bean instanceof AbstractReceiverBean) {
AbstractReceiverBean receiverBean = (AbstractReceiverBean) bean;
return isBeanEnabled(receiverBean.getDeclaringBean(), enabled);
} else if (bean instanceof DecoratorImpl) {
return enabled.getDecorator(bean.getBeanClass()) != null;
} else if (bean instanceof InterceptorImpl) {
return enabled.getInterceptor(bean.getBeanClass()) != null;
} else {
return true;
}
}
/**
* Check if any of the beans is an alternative
*
* @param beans the beans to check
* @return true if any bean is an alternative
*/
public static boolean isAlternativePresent(Set> beans) {
for (Bean bean : beans) {
if (bean.isAlternative()) {
return true;
}
}
return false;
}
/**
* Is alternative.
*
* @param annotated the annotated
* @param mergedStereotypes merged stereotypes
* @return true if alternative, false otherwise
*/
public static boolean isAlternative(WeldAnnotated annotated, MergedStereotypes mergedStereotypes) {
return annotated.isAnnotationPresent(Alternative.class) || mergedStereotypes.isAlternative();
}
/**
* Check if bean is specialized by any of beans
*
* @param bean the bean to check
* @param beanManager bean manager
* @return true if bean is specialized by some bean in all beans
*/
public static > boolean isSpecialized(T bean, BeanManagerImpl beanManager) {
BeansClosure closure = beanManager.getClosure();
return closure.isSpecialized(bean);
}
/**
* Check if bean is specialized by any of beans
*
* @param bean the bean to check
* @param beans the possible specialized beans
* @param beanManager bean manager
* @return true if bean is specialized by some bean in beans
*/
public static > boolean isSpecialized(T bean, Set beans, BeanManagerImpl beanManager) {
BeansClosure closure = beanManager.getClosure();
Bean specializingBean = closure.getSpecializingBean(bean);
//noinspection SuspiciousMethodCalls
return (specializingBean != null && beans.contains(specializingBean));
}
/**
* Check if the given producer/disposer method of producer field is defined on a specialized bean and is therefore disabled.
*/
public static boolean isSuppressedBySpecialization(Bean bean, BeanManagerImpl manager) {
if (bean instanceof AbstractReceiverBean) {
BeansClosure closure = manager.getClosure();
if (closure.isSpecialized(Reflections.>cast(bean).getDeclaringBean())) {
// if a bean is specialized, its producer methods are not enabled (WELD-977)
return true;
}
}
return false;
}
public static ConstructorInjectionPoint getBeanConstructor(Bean declaringBean, WeldClass type) {
ConstructorInjectionPoint constructor = null;
Collection> initializerAnnotatedConstructors = type.getWeldConstructors(Inject.class);
log.trace(FOUND_INJECTABLE_CONSTRUCTORS, initializerAnnotatedConstructors, type);
if (initializerAnnotatedConstructors.size() > 1) {
if (initializerAnnotatedConstructors.size() > 1) {
throw new DefinitionException(AMBIGUOUS_CONSTRUCTOR, type, initializerAnnotatedConstructors);
}
} else if (initializerAnnotatedConstructors.size() == 1) {
constructor = ConstructorInjectionPoint.of(declaringBean, initializerAnnotatedConstructors.iterator().next());
log.trace(FOUND_ONE_INJECTABLE_CONSTRUCTOR, constructor, type);
} else if (type.getNoArgsWeldConstructor() != null) {
constructor = ConstructorInjectionPoint.of(declaringBean, type.getNoArgsWeldConstructor());
log.trace(FOUND_DEFAULT_CONSTRUCTOR, constructor, type);
}
if (constructor == null) {
throw new DefinitionException(UNABLE_TO_FIND_CONSTRUCTOR, type);
} else {
return constructor;
}
}
/**
* Injects EJBs and common fields
*/
public static void injectEEFields(T beanInstance, BeanManagerImpl manager, Iterable> ejbInjectionPoints, Iterable> persistenceContextInjectionPoints, Iterable> persistenceUnitInjectionPoints, Iterable> resourceInjectionPoints) {
EjbInjectionServices ejbServices = manager.getServices().get(EjbInjectionServices.class);
JpaInjectionServices jpaServices = manager.getServices().get(JpaInjectionServices.class);
ResourceInjectionServices resourceServices = manager.getServices().get(ResourceInjectionServices.class);
if (ejbServices != null) {
for (WeldInjectionPoint injectionPoint : ejbInjectionPoints) {
Object ejbInstance = ejbServices.resolveEjb(injectionPoint);
injectionPoint.inject(beanInstance, ejbInstance);
}
}
if (jpaServices != null) {
for (WeldInjectionPoint injectionPoint : persistenceContextInjectionPoints) {
Object pcInstance = jpaServices.resolvePersistenceContext(injectionPoint);
injectionPoint.inject(beanInstance, pcInstance);
}
for (WeldInjectionPoint injectionPoint : persistenceUnitInjectionPoints) {
Object puInstance = jpaServices.resolvePersistenceUnit(injectionPoint);
injectionPoint.inject(beanInstance, puInstance);
}
}
if (resourceServices != null) {
for (WeldInjectionPoint injectionPoint : resourceInjectionPoints) {
Object resourceInstance = resourceServices.resolveResource(injectionPoint);
injectionPoint.inject(beanInstance, resourceInstance);
}
}
}
/**
* Inspect an injection point, and try to retrieve a EE resource for it
*/
public static Object resolveEEResource(BeanManagerImpl manager, WeldInjectionPoint injectionPoint) {
EjbInjectionServices ejbServices = manager.getServices().get(EjbInjectionServices.class);
JpaInjectionServices jpaServices = manager.getServices().get(JpaInjectionServices.class);
ResourceInjectionServices resourceServices = manager.getServices().get(ResourceInjectionServices.class);
if (ejbServices != null) {
Class ejbAnnotationType = manager.getServices().get(EJBApiAbstraction.class).EJB_ANNOTATION_CLASS;
if (injectionPoint.isAnnotationPresent(ejbAnnotationType)) {
return ejbServices.resolveEjb(injectionPoint);
}
}
if (jpaServices != null) {
final PersistenceApiAbstraction persistenceApiAbstraction = manager.getServices().get(PersistenceApiAbstraction.class);
Class persistenceUnitAnnotationType = persistenceApiAbstraction.PERSISTENCE_UNIT_ANNOTATION_CLASS;
if (injectionPoint.isAnnotationPresent(persistenceUnitAnnotationType)) {
return jpaServices.resolvePersistenceUnit(injectionPoint);
}
Class persistenceContextAnnotationType = persistenceApiAbstraction.PERSISTENCE_CONTEXT_ANNOTATION_CLASS;
if (injectionPoint.isAnnotationPresent(persistenceContextAnnotationType)) {
return jpaServices.resolvePersistenceContext(injectionPoint);
}
}
if (resourceServices != null) {
Class resourceAnnotationType = manager.getServices().get(EJBApiAbstraction.class).RESOURCE_ANNOTATION_CLASS;
if (injectionPoint.isAnnotationPresent(resourceAnnotationType)) {
return resourceServices.resolveResource(injectionPoint);
}
}
return null;
}
/**
* Gets the declared bean type
*
* @return The bean type
*/
public static Type getDeclaredBeanType(Class clazz) {
Type[] actualTypeArguments = Reflections.getActualTypeArguments(clazz);
if (actualTypeArguments.length == 1) {
return actualTypeArguments[0];
} else {
return null;
}
}
/**
* Injects bound fields
*
* @param instance The instance to inject into
*/
public static void injectBoundFields(T instance, CreationalContext creationalContext, BeanManagerImpl manager, Iterable> injectableFields) {
for (FieldInjectionPoint injectableField : injectableFields) {
injectableField.inject(instance, manager, creationalContext);
}
}
public static void injectFieldsAndInitializers(T instance, CreationalContext ctx, BeanManagerImpl beanManager, List>> injectableFields, List>> initializerMethods) {
if (injectableFields.size() != initializerMethods.size()) {
throw new IllegalArgumentException(INVALID_QUANTITY_INJECTABLE_FIELDS_AND_INITIALIZER_METHODS, injectableFields, initializerMethods);
}
for (int i = 0; i < injectableFields.size(); i++) {
injectBoundFields(instance, ctx, beanManager, injectableFields.get(i));
callInitializers(instance, ctx, beanManager, initializerMethods.get(i));
}
}
/**
* Calls all initializers of the bean
*
* @param instance The bean instance
*/
public static void callInitializers(T instance, CreationalContext creationalContext, BeanManagerImpl manager, Iterable> initializerMethods) {
for (MethodInjectionPoint initializer : initializerMethods) {
initializer.invoke(instance, manager, creationalContext, CreationException.class);
}
}
public static boolean isInterceptor(WeldClass annotatedItem) {
return annotatedItem.isAnnotationPresent(javax.interceptor.Interceptor.class);
}
public static boolean isDecorator(WeldClass annotatedItem) {
return annotatedItem.isAnnotationPresent(Decorator.class);
}
public static Annotation[] mergeInQualifiers(Annotation[] qualifiers, Annotation[] newQualifiers) {
if (qualifiers == null || newQualifiers == null)
return EMPTY_ANNOTATIONS;
return mergeInQualifiers(asList(qualifiers), newQualifiers).toArray(Reflections.EMPTY_ANNOTATIONS);
}
public static Set mergeInQualifiers(Collection qualifiers, Annotation[] newQualifiers) {
Set result = new HashSet();
if (qualifiers != null && qualifiers.isEmpty() == false)
result.addAll(qualifiers);
if (newQualifiers != null && newQualifiers.length > 0) {
final MetaAnnotationStore store = Container.instance().services().get(MetaAnnotationStore.class);
Set checkedNewQualifiers = new HashSet();
for (Annotation qualifier : newQualifiers) {
if (!store.getBindingTypeModel(qualifier.annotationType()).isValid()) {
throw new IllegalArgumentException(ANNOTATION_NOT_QUALIFIER, qualifier);
}
if (checkedNewQualifiers.contains(qualifier)) {
throw new IllegalArgumentException(REDUNDANT_QUALIFIER, qualifier, Arrays.asList(newQualifiers));
}
checkedNewQualifiers.add(qualifier);
}
result.addAll(checkedNewQualifiers);
}
return result;
}
public static InjectionPoint getDelegateInjectionPoint(javax.enterprise.inject.spi.Decorator decorator) {
if (decorator instanceof DecoratorImpl) {
return ((DecoratorImpl) decorator).getDelegateInjectionPoint();
} else {
for (InjectionPoint injectionPoint : decorator.getInjectionPoints()) {
if (injectionPoint.isDelegate())
return injectionPoint;
}
}
return null;
}
/**
*
* @param weldClass
* @return a set of producer methods, bridge methods are filtered out
*/
public static Collection> getProducerMethods(WeldClass weldClass) {
return Collections2.filter(weldClass.getDeclaredWeldMethods(Produces.class), BRIDGE_METHOD_FILTER_PREDICATE);
}
/**
*
* @param weldClass
* @return a set of disposer methods, bridge methods are filtered out
*/
public static Collection> getDisposerMethods(WeldClass weldClass) {
return Collections2.filter(weldClass.getDeclaredWeldMethodsWithAnnotatedParameters(Disposes.class), BRIDGE_METHOD_FILTER_PREDICATE);
}
}
