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EE4J Compatible Implementation for Jakarta Faces API
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.faces.util.cdi11;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import jakarta.enterprise.context.Dependent;
import jakarta.enterprise.context.spi.CreationalContext;
import jakarta.enterprise.inject.Any;
import jakarta.enterprise.inject.Default;
import jakarta.enterprise.inject.spi.AnnotatedType;
import jakarta.enterprise.inject.spi.Bean;
import jakarta.enterprise.inject.spi.BeanManager;
import jakarta.enterprise.inject.spi.InjectionPoint;
import jakarta.enterprise.inject.spi.InjectionTarget;
import jakarta.enterprise.inject.spi.InjectionTargetFactory;
import jakarta.enterprise.util.AnnotationLiteral;
public class CDIUtilImpl implements Serializable, CDIUtil {
private static final long serialVersionUID = -8101770583567814803L;
public CDIUtilImpl() {
}
@Override
public Bean createHelperBean(BeanManager beanManager, Class beanClass) {
BeanWrapper result = null;
AnnotatedType annotatedType = beanManager.createAnnotatedType(beanClass);
InjectionTargetFactory factory = beanManager.getInjectionTargetFactory(annotatedType);
result = new BeanWrapper(beanClass);
// use this to create the class and inject dependencies
final InjectionTarget injectionTarget = factory.createInjectionTarget(result);
result.setInjectionTarget(injectionTarget);
return result;
}
private static class BeanWrapper implements Bean {
private Class beanClass;
private InjectionTarget injectionTarget = null;
public BeanWrapper(Class beanClass) {
this.beanClass = beanClass;
}
private void setInjectionTarget(InjectionTarget injectionTarget) {
this.injectionTarget = injectionTarget;
}
@Override
public Class getBeanClass() {
return beanClass;
}
@Override
public Set getInjectionPoints() {
return injectionTarget.getInjectionPoints();
}
@Override
public String getName() {
return null;
}
@Override
public Set getQualifiers() {
Set qualifiers = new HashSet<>();
qualifiers.add(new DefaultAnnotationLiteral());
qualifiers.add(new AnyAnnotationLiteral());
return qualifiers;
}
public static class DefaultAnnotationLiteral extends AnnotationLiteral {
private static final long serialVersionUID = -9065007202240742004L;
}
public static class AnyAnnotationLiteral extends AnnotationLiteral {
private static final long serialVersionUID = -4700109250603725375L;
}
@Override
public Class getScope() {
return Dependent.class;
}
@Override
public Set> getStereotypes() {
return Collections.emptySet();
}
@Override
public Set getTypes() {
Set types = new HashSet<>();
types.add(beanClass);
types.add(Object.class);
return types;
}
@Override
public boolean isAlternative() {
return false;
}
@Override
public boolean isNullable() {
return false;
}
@Override
public Object create(CreationalContext ctx) {
Object instance = injectionTarget.produce(ctx);
injectionTarget.inject(instance, ctx);
injectionTarget.postConstruct(instance);
return instance;
}
@Override
public void destroy(Object instance, CreationalContext ctx) {
injectionTarget.preDestroy(instance);
injectionTarget.dispose(instance);
ctx.release();
}
}
}