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package org.glassfish.jersey.ext.cdi1x.validation.internal;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.Priority;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.AfterTypeDiscovery;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.BeforeBeanDiscovery;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.util.AnnotationLiteral;
import javax.interceptor.Interceptor;
import org.glassfish.jersey.internal.util.collection.Cache;
import org.glassfish.jersey.server.model.Resource;
import org.hibernate.validator.internal.cdi.interceptor.ValidationInterceptor;
/**
* CDI extension to register {@link CdiInterceptorWrapper}.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
*/
@Priority(value = Interceptor.Priority.PLATFORM_BEFORE + 199)
public class CdiInterceptorWrapperExtension implements Extension {
public static final AnnotationLiteral<Default> DEFAULT_ANNOTATION_LITERAL = new AnnotationLiteral<Default>() {};
public static final AnnotationLiteral<Any> ANY_ANNOTATION_LITERAL = new AnnotationLiteral<Any>() {};
final Cache<Class<?>, Boolean> jaxRsResourceCache = new Cache<>(clazz -> Resource.from(clazz) != null);
private AnnotatedType<ValidationInterceptor> interceptorAnnotatedType;
/**
* Register our validation interceptor wrapper.
*
* @param beforeBeanDiscoveryEvent CDI bootstrap event.
* @param beanManager current bean manager.
*/
private void beforeBeanDiscovery(@Observes BeforeBeanDiscovery beforeBeanDiscoveryEvent, final BeanManager beanManager) {
beforeBeanDiscoveryEvent.addAnnotatedType(beanManager.createAnnotatedType(CdiInterceptorWrapper.class));
interceptorAnnotatedType = beanManager.createAnnotatedType(ValidationInterceptor.class);
beforeBeanDiscoveryEvent.addAnnotatedType(interceptorAnnotatedType);
}
/**
* Remove the original interceptor, as we are going to proxy the calls with {@link CdiInterceptorWrapper}.
*
* @param afterTypeDiscovery CDI bootstrap event.
*/
private void afterTypeDiscovery(@Observes final AfterTypeDiscovery afterTypeDiscovery) {
afterTypeDiscovery.getInterceptors().remove(ValidationInterceptor.class);
}
/**
* Register a CDI bean for the original interceptor so that we can have it injected in our wrapper.
*
* @param afterBeanDiscovery CDI bootstrap event.
* @param beanManager current bean manager
*/
private void afterBeanDiscovery(@Observes AfterBeanDiscovery afterBeanDiscovery, BeanManager beanManager) {
// we need the injection target so that CDI could instantiate the original interceptor for us
final AnnotatedType<ValidationInterceptor> interceptorType = interceptorAnnotatedType;
final InjectionTarget<ValidationInterceptor> interceptorTarget = beanManager.createInjectionTarget(interceptorType);
afterBeanDiscovery.addBean(new Bean<ValidationInterceptor>() {
@Override
public Class<?> getBeanClass() {
return ValidationInterceptor.class;
}
@Override
public Set<InjectionPoint> getInjectionPoints() {
return interceptorTarget.getInjectionPoints();
}
@Override
public String getName() {
return "HibernateValidationInterceptorImpl";
}
@Override
public Set<Annotation> getQualifiers() {
return new HashSet<Annotation>() {{
add(DEFAULT_ANNOTATION_LITERAL);
add(ANY_ANNOTATION_LITERAL);
}};
}
@Override
public Class<? extends Annotation> getScope() {
return Dependent.class;
}
@Override
public Set<Class<? extends Annotation>> getStereotypes() {
return Collections.emptySet();
}
@Override
public Set<Type> getTypes() {
return new HashSet<Type>() {{
add(ValidationInterceptor.class);
add(Object.class);
}};
}
@Override
public boolean isAlternative() {
return false;
}
@Override
public boolean isNullable() {
return false;
}
@Override
public ValidationInterceptor create(CreationalContext<ValidationInterceptor> ctx) {
final ValidationInterceptor result = interceptorTarget.produce(ctx);
interceptorTarget.inject(result, ctx);
interceptorTarget.postConstruct(result);
return result;
}
@Override
public void destroy(ValidationInterceptor instance,
CreationalContext<ValidationInterceptor> ctx) {
interceptorTarget.preDestroy(instance);
interceptorTarget.dispose(instance);
ctx.release();
}
});
}
}