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package org.glassfish.jersey.ext.cdi1x.transaction.internal;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.util.List;
import java.util.Set;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.ext.ExceptionMapper;
import javax.annotation.Priority;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.spi.AfterTypeDiscovery;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.BeforeBeanDiscovery;
import javax.enterprise.inject.spi.Extension;
import javax.inject.Qualifier;
import javax.interceptor.Interceptor;
import javax.transaction.TransactionalException;
import org.glassfish.jersey.ext.cdi1x.internal.CdiUtil;
import org.glassfish.jersey.ext.cdi1x.internal.GenericCdiBeanSupplier;
import org.glassfish.jersey.internal.inject.Binding;
import org.glassfish.jersey.internal.inject.Bindings;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.server.spi.ComponentProvider;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
/**
* Jersey CDI extension that provides means to retain {@link WebApplicationException}
* thrown from JAX-RS components implemented as CDI transactional beans.
* This is to avoid the {@link WebApplicationException} from being masked with
* {@link TransactionalException}. Jersey will try to restore the original
* JAX-RS exception using {@link TransactionalExceptionMapper}.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
*/
@Priority(value = Interceptor.Priority.PLATFORM_BEFORE + 199)
public class TransactionalExceptionInterceptorProvider implements ComponentProvider, Extension {
private InjectionManager injectionManager;
private BeanManager beanManager;
@Qualifier
@Retention(RUNTIME)
@Target({METHOD, FIELD, PARAMETER, TYPE})
public static @interface WaeQualifier {
}
@Override
public void initialize(final InjectionManager injectionManager) {
this.injectionManager = injectionManager;
this.beanManager = CdiUtil.getBeanManager();
}
@Override
public boolean bind(final Class<?> component, final Set<Class<?>> providerContracts) {
return false;
}
@Override
public void done() {
if (beanManager != null) {
bindWaeRestoringExceptionMapper();
}
}
private void bindWaeRestoringExceptionMapper() {
GenericCdiBeanSupplier beanSupplier =
new GenericCdiBeanSupplier(TransactionalExceptionMapper.class, injectionManager, beanManager, true);
Binding binding = Bindings.supplier(beanSupplier).to(ExceptionMapper.class);
injectionManager.register(binding);
}
@SuppressWarnings("unused")
private void afterTypeDiscovery(@Observes final AfterTypeDiscovery afterTypeDiscovery) {
final List<Class<?>> interceptors = afterTypeDiscovery.getInterceptors();
interceptors.add(WebAppExceptionInterceptor.class);
}
@SuppressWarnings("unused")
private void beforeBeanDiscovery(@Observes final BeforeBeanDiscovery beforeBeanDiscovery, final javax.enterprise.inject.spi
.BeanManager beanManager) {
beforeBeanDiscovery.addAnnotatedType(beanManager.createAnnotatedType(WebAppExceptionHolder.class));
beforeBeanDiscovery.addAnnotatedType(beanManager.createAnnotatedType(WebAppExceptionInterceptor.class));
beforeBeanDiscovery.addAnnotatedType(beanManager.createAnnotatedType(TransactionalExceptionMapper.class));
}
}