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// Portions Copyright [2022] [Payara Foundation and/or its affiliates]
package org.glassfish.jms.injection;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;
import jakarta.enterprise.context.*;
import jakarta.enterprise.context.spi.CreationalContext;
import jakarta.enterprise.event.Observes;
import jakarta.enterprise.inject.Any;
import jakarta.enterprise.inject.Default;
import jakarta.enterprise.inject.spi.*;
import jakarta.enterprise.util.AnnotationLiteral;
import jakarta.transaction.TransactionScoped;
/*
* This CDI portable extension can register JMSContext beans to be system-level
* that can be injected into all applications.
*/
public class JMSCDIExtension implements Extension {
public JMSCDIExtension() {
}
private Bean createLocalBean(BeanManager beanManager, Class beanClass) {
AnnotatedType annotatedType = beanManager.createAnnotatedType(beanClass);
LocalPassivationCapableBean localBean = new LocalPassivationCapableBean(beanClass);
InjectionTargetFactory injectionTargetFactory = beanManager.getInjectionTargetFactory(annotatedType);
localBean.setInjectionTarget(injectionTargetFactory.createInjectionTarget(localBean));
return localBean;
}
public void afterBeanDiscovery(@Observes AfterBeanDiscovery afterBeanDiscoveryEvent, BeanManager beanManager) {
Bean requestManagerBean = createLocalBean(beanManager, RequestedJMSContextManager.class);
afterBeanDiscoveryEvent.addBean(requestManagerBean);
Bean transactionManagerBean = createLocalBean(beanManager, TransactedJMSContextManager.class);
afterBeanDiscoveryEvent.addBean(transactionManagerBean);
Bean contextBean = createLocalBean(beanManager, InjectableJMSContext.class);
afterBeanDiscoveryEvent.addBean(contextBean);
}
void addScope(@Observes final BeforeBeanDiscovery event) {
}
void afterBeanDiscovery(@Observes final AfterBeanDiscovery event) {
}
public void beforeBeanDiscovery(@Observes BeforeBeanDiscovery event) {
}
public void beforeBeanDiscovery(@Observes BeforeBeanDiscovery event, BeanManager beanManager) {
}
public void afterDeploymentValidation(@Observes AfterDeploymentValidation event, BeanManager beanManager) {
}
public void beforeShutdown(@Observes BeforeShutdown event, BeanManager beanManager) {
}
public void processInjectionTarget(@Observes ProcessInjectionTarget pit) {
}
public void processAnnotatedType(@Observes @WithAnnotations(Void.class) ProcessAnnotatedType pat) {
}
public void processProducer(@Observes ProcessProducer event) {
}
static AnnotationLiteral getDefaultAnnotationLiteral() {
return new AnnotationLiteral() {};
}
static AnnotationLiteral getAnyAnnotationLiteral() {
return new AnnotationLiteral() {};
}
public static class LocalPassivationCapableBean implements Bean, PassivationCapable {
private String id = UUID.randomUUID().toString();
private Class beanClass;
private InjectionTarget injectionTarget;
public LocalPassivationCapableBean(Class beanClass) {
this.beanClass = beanClass;
}
public LocalPassivationCapableBean(Class beanClass, InjectionTarget injectionTarget) {
this.beanClass = beanClass;
this.injectionTarget = injectionTarget;
}
public 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 beanClass.getName();
}
@Override
public Set getQualifiers() {
Set qualifiers = new HashSet();
qualifiers.add(JMSCDIExtension.getDefaultAnnotationLiteral());
qualifiers.add(JMSCDIExtension.getAnyAnnotationLiteral());
return qualifiers;
}
@Override
public Class getScope() {
if (beanClass.isAnnotationPresent(RequestScoped.class))
return RequestScoped.class;
else if (beanClass.isAnnotationPresent(TransactionScoped.class))
return TransactionScoped.class;
else
return Dependent.class;
}
@Override
public Set> getStereotypes() {
return Collections.emptySet();
}
@Override
public Set getTypes() {
Set types = new HashSet();
types.add(beanClass);
boolean loop = true;
Class clazz = beanClass;
while (loop) {
Class[] interfaces = clazz.getInterfaces();
for (Class t : interfaces) {
types.add(t);
}
clazz = clazz.getSuperclass();
if (clazz == null) {
loop = false;
break;
} else {
types.add(clazz);
}
}
return types;
}
@Override
public boolean isAlternative() {
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();
}
@Override
public String getId() {
return id;
}
}
}
@interface Void {}