org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider Maven / Gradle / Ivy
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package org.glassfish.jersey.gf.cdi.internal;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Application;
import javax.ws.rs.ext.ExceptionMapper;
import javax.annotation.ManagedBean;
import javax.annotation.Priority;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.AfterTypeDiscovery;
import javax.enterprise.inject.spi.Annotated;
import javax.enterprise.inject.spi.AnnotatedCallable;
import javax.enterprise.inject.spi.AnnotatedConstructor;
import javax.enterprise.inject.spi.AnnotatedParameter;
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.CDI;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.inject.spi.ProcessAnnotatedType;
import javax.enterprise.inject.spi.ProcessInjectionTarget;
import javax.enterprise.util.AnnotationLiteral;
import javax.inject.Inject;
import javax.inject.Qualifier;
import javax.inject.Singleton;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptor;
import javax.interceptor.InvocationContext;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.transaction.Transactional;
import org.glassfish.jersey.internal.inject.Injections;
import org.glassfish.jersey.internal.inject.Providers;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.model.Parameter;
import org.glassfish.jersey.server.model.Resource;
import org.glassfish.jersey.server.spi.ComponentProvider;
import org.glassfish.jersey.server.spi.internal.ValueFactoryProvider;
import org.glassfish.hk2.api.ClassAnalyzer;
import org.glassfish.hk2.api.DynamicConfiguration;
import org.glassfish.hk2.api.Factory;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.utilities.binding.ScopedBindingBuilder;
import org.glassfish.hk2.utilities.binding.ServiceBindingBuilder;
import org.glassfish.hk2.utilities.cache.Cache;
import org.glassfish.hk2.utilities.cache.Computable;
import org.glassfish.jersey.gf.cdi.spi.Hk2CustomBoundTypesProvider;
import org.glassfish.jersey.internal.ServiceConfigurationError;
import org.glassfish.jersey.internal.ServiceFinder;
import org.glassfish.jersey.model.internal.RankedComparator;
import org.glassfish.jersey.model.internal.RankedProvider;
/**
* Jersey CDI integration implementation.
* Implements {@link ComponentProvider Jersey component provider} to serve CDI beans
* obtained from the actual CDI bean manager.
* To properly inject JAX-RS/Jersey managed beans into CDI, it also
* serves as a {@link Extension CDI Extension}, that intercepts CDI injection targets.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
*/
@Priority(200)
public class CdiComponentProvider implements ComponentProvider, Extension {
private static final Logger LOGGER = Logger.getLogger(CdiComponentProvider.class.getName());
/**
* Name to be used when binding CDI injectee skipping class analyzer to HK2 service locator.
*/
public static final String CDI_CLASS_ANALYZER = "CdiInjecteeSkippingClassAnalyzer";
static final String TRANSACTIONAL_WAE = "org.glassfish.jersey.cdi.transactional.wae";
private ServiceLocator locator;
private BeanManager beanManager;
private Map, Set> methodsToSkip = new HashMap, Set>();
private Map, Set> fieldsToSkip = new HashMap, Set>();
private final Hk2CustomBoundTypesProvider customHk2TypesProvider = lookupHk2CustomBoundTypesProvider();
/**
* HK2 factory to provide CDI components obtained from CDI bean manager.
* The factory handles CDI managed components as well as non-contextual managed beans.
*/
private static class CdiFactory implements Factory {
private interface InstanceManager {
/**
* Get me correctly instantiated and injected instance.
*
* @param clazz type of the component to instantiate.
* @return injected component instance.
*/
T getInstance(Class clazz);
/**
* Do whatever needs to be done before given instance is destroyed.
*
* @param instance to be destroyed.
*/
void preDestroy(T instance);
}
final Class clazz;
final BeanManager beanManager;
final ServiceLocator locator;
final InstanceManager referenceProvider;
final Annotation[] qualifiers;
@SuppressWarnings("unchecked")
@Override
public T provide() {
final T instance = referenceProvider.getInstance(clazz);
if (instance != null) {
return instance;
}
throw new NoSuchElementException(LocalizationMessages.CDI_LOOKUP_FAILED(clazz));
}
@Override
public void dispose(final T instance) {
referenceProvider.preDestroy(instance);
}
/**
* Create new factory instance for given type and bean manager.
*
* @param rawType type of the components to provide.
* @param locator actual HK2 service locator instance
* @param beanManager current bean manager to get references from.
* @param cdiManaged set to true if the component should be managed by CDI
*/
CdiFactory(final Class rawType, final ServiceLocator locator, final BeanManager beanManager, final boolean cdiManaged) {
this.clazz = rawType;
this.qualifiers = getQualifiers(clazz.getAnnotations());
this.beanManager = beanManager;
this.locator = locator;
this.referenceProvider = cdiManaged ? new InstanceManager() {
@Override
public T getInstance(final Class clazz) {
final Set> beans = beanManager.getBeans(clazz, qualifiers);
for (final Bean b : beans) {
final Object instance = beanManager.getReference(b, clazz, beanManager.createCreationalContext(b));
return (T) instance;
}
return null;
}
@Override
public void preDestroy(final T instance) {
// do nothing
}
} : new InstanceManager() {
final AnnotatedType annotatedType = beanManager.createAnnotatedType(clazz);
final InjectionTarget injectionTarget = beanManager.createInjectionTarget(annotatedType);
final CreationalContext creationalContext = beanManager.createCreationalContext(null);
@Override
public T getInstance(final Class clazz) {
final T instance = injectionTarget.produce(creationalContext);
injectionTarget.inject(instance, creationalContext);
if (locator != null) {
locator.inject(instance, CDI_CLASS_ANALYZER);
}
injectionTarget.postConstruct(instance);
return instance;
}
@Override
public void preDestroy(final T instance) {
injectionTarget.preDestroy(instance);
}
};
}
}
@Override
public void initialize(final ServiceLocator locator) {
this.locator = locator;
beanManager = beanManagerFromJndi();
if (beanManager != null) {
final CdiComponentProvider extension = beanManager.getExtension(this.getClass());
if (extension != null) {
extension.locator = this.locator;
this.fieldsToSkip = extension.fieldsToSkip;
this.methodsToSkip = extension.methodsToSkip;
LOGGER.config(LocalizationMessages.CDI_PROVIDER_INITIALIZED());
}
}
}
/**
* CDI producer for CDI bean constructor String parameters, that should be injected by JAX-RS.
*/
@ApplicationScoped
public static class JaxRsParamProducer {
/**
* Internal cache to store CDI {@link InjectionPoint} to Jersey {@link Parameter} mapping.
*/
final Cache parameterCache = new Cache(new Computable() {
@Override
public Parameter compute(final InjectionPoint injectionPoint) {
final Annotated annotated = injectionPoint.getAnnotated();
final Class clazz = injectionPoint.getMember().getDeclaringClass();
if (annotated instanceof AnnotatedParameter) {
final AnnotatedParameter annotatedParameter = (AnnotatedParameter) annotated;
final AnnotatedCallable callable = annotatedParameter.getDeclaringCallable();
if (callable instanceof AnnotatedConstructor) {
final AnnotatedConstructor ac = (AnnotatedConstructor) callable;
final int position = annotatedParameter.getPosition();
final List parameters = Parameter.create(clazz, clazz, ac.getJavaMember(), false);
return parameters.get(position);
}
}
return null;
}
});
/**
* Provide a String value for given injection point. If the injection point does not refer
* to a CDI bean constructor parameter, or the value could not be found, the method will return null.
*
* @param injectionPoint actual injection point.
* @param beanManager current application bean manager.
* @return String value for given injection point.
*/
@javax.enterprise.inject.Produces
public String getParameterValue(final InjectionPoint injectionPoint, final BeanManager beanManager) {
final Parameter parameter = parameterCache.compute(injectionPoint);
if (parameter != null) {
final ServiceLocator locator = beanManager.getExtension(CdiComponentProvider.class).locator;
final Set providers = Providers.getProviders(locator, ValueFactoryProvider.class);
for (final ValueFactoryProvider vfp : providers) {
final Factory valueFactory = vfp.getValueFactory(parameter);
if (valueFactory != null) {
return (String) valueFactory.provide();
}
}
}
return null;
}
}
@Override
public boolean bind(final Class clazz, final Set> providerContracts) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(LocalizationMessages.CDI_CLASS_BEING_CHECKED(clazz));
}
if (beanManager == null) {
return false;
}
final boolean isCdiManaged = isCdiComponent(clazz);
final boolean isManagedBean = isManagedBean(clazz);
final boolean isJaxRsComponent = isJaxRsComponentType(clazz);
if (!isCdiManaged && !isManagedBean && !isJaxRsComponent) {
return false;
}
final DynamicConfiguration dc = Injections.getConfiguration(locator);
final ServiceBindingBuilder bindingBuilder =
Injections.newFactoryBinder(new CdiFactory(clazz, locator, beanManager, isCdiManaged));
bindingBuilder.to(clazz);
for (final Class contract : providerContracts) {
bindingBuilder.to(contract);
}
Injections.addBinding(bindingBuilder, dc);
dc.commit();
if (LOGGER.isLoggable(Level.CONFIG)) {
LOGGER.config(LocalizationMessages.CDI_CLASS_BOUND_WITH_CDI(clazz));
}
return true;
}
@Override
public void done() {
bindHk2ClassAnalyzer();
bindWaeRestoringExceptionMapper();
}
private void bindWaeRestoringExceptionMapper() {
final DynamicConfiguration dc = Injections.getConfiguration(locator);
Injections.addBinding(Injections.newBinder(TransactionalExceptionMapper.class).to(ExceptionMapper.class).in(Singleton.class), dc);
dc.commit();
}
private boolean isCdiComponent(final Class component) {
final Annotation[] qualifiers = getQualifiers(component.getAnnotations());
return !beanManager.getBeans(component, qualifiers).isEmpty();
}
private static Annotation[] getQualifiers(final Annotation[] annotations) {
final List result = new ArrayList(annotations.length);
for (final Annotation a : annotations) {
if (a.annotationType().isAnnotationPresent(Qualifier.class)) {
result.add(a);
}
}
return result.toArray(new Annotation[result.size()]);
}
private boolean isManagedBean(final Class component) {
return component.isAnnotationPresent(ManagedBean.class);
}
@SuppressWarnings("unused")
private void processAnnotatedType(@Observes final ProcessAnnotatedType processAnnotatedType) {
if (customHk2TypesProvider != null) {
final Type baseType = processAnnotatedType.getAnnotatedType().getBaseType();
if (customHk2TypesProvider.getHk2Types().contains(baseType)) {
processAnnotatedType.veto();
jerseyVetoedTypes.add(baseType);
}
}
}
@SuppressWarnings("unused")
private void afterTypeDiscovery(@Observes final AfterTypeDiscovery afterTypeDiscovery) {
final List> interceptors = afterTypeDiscovery.getInterceptors();
interceptors.add(WebApplicationExceptionPreservingInterceptor.class);
if (LOGGER.isLoggable(Level.CONFIG) && !jerseyVetoedTypes.isEmpty()) {
LOGGER.config(LocalizationMessages.CDI_TYPE_VETOED(customHk2TypesProvider,
listTypes(new StringBuilder().append("\n"), jerseyVetoedTypes).toString()));
}
}
@SuppressWarnings("unused")
private void beforeBeanDiscovery(@Observes final BeforeBeanDiscovery beforeBeanDiscovery, final BeanManager beanManager) {
beforeBeanDiscovery.addAnnotatedType(beanManager.createAnnotatedType(JaxRsParamProducer.class));
beforeBeanDiscovery.addAnnotatedType(beanManager.createAnnotatedType(WebApplicationExceptionPreservingInterceptor.class));
}
/**
* Transactional interceptor to help retain {@link WebApplicationException}
* thrown by transactional beans.
*/
@Priority(Interceptor.Priority.PLATFORM_BEFORE + 199)
@Interceptor
@Transactional
public static final class WebApplicationExceptionPreservingInterceptor {
@Inject
BeanManager beanManager;
@AroundInvoke
public Object intercept(final InvocationContext ic) throws Exception {
try {
return ic.proceed();
} catch (final WebApplicationException wae) {
final CdiComponentProvider extension = beanManager.getExtension(CdiComponentProvider.class);
final ContainerRequest jerseyRequest = extension.locator.getService(ContainerRequest.class);
if (jerseyRequest != null) {
jerseyRequest.setProperty(TRANSACTIONAL_WAE, wae);
}
throw wae;
}
}
}
@SuppressWarnings("unused")
private void processInjectionTarget(@Observes final ProcessInjectionTarget event) {
final InjectionTarget it = event.getInjectionTarget();
final Class componentClass = event.getAnnotatedType().getJavaClass();
typesSeenBeforeValidation.add(event.getAnnotatedType().getBaseType());
final Set filteredInjectionPoints = filterHk2InjectionPointsOut(it.getInjectionPoints());
for (final InjectionPoint injectionPoint : filteredInjectionPoints) {
final Member member = injectionPoint.getMember();
if (member instanceof Field) {
addInjecteeToSkip(componentClass, fieldsToSkip, (Field) member);
} else if (member instanceof Method) {
addInjecteeToSkip(componentClass, methodsToSkip, (Method) member);
}
}
if (isJerseyOrDependencyType(componentClass)) {
event.setInjectionTarget(new CdiInjectionTarget(it) {
@Override
public Set getInjectionPoints() {
// Tell CDI to ignore Jersey (or it's dependencies) classes when injecting.
// CDI will not treat these classes as CDI beans (as they are not).
return Collections.emptySet();
}
});
} else if (isJaxRsComponentType(componentClass)) {
event.setInjectionTarget(new CdiInjectionTarget(it) {
@Override
public Set getInjectionPoints() {
// Inject CDI beans into JAX-RS resources/providers/application.
return filteredInjectionPoints;
}
});
}
}
// TODO: refactor the following method
private Set filterHk2InjectionPointsOut(final Set originalInjectionPoints) {
final Set filteredInjectionPoints = new HashSet();
for (InjectionPoint ip : originalInjectionPoints) {
final Type injectedType = ip.getType();
if (injectedType instanceof Class) {
if (!isJerseyOrDependencyType((Class)injectedType)
&& !(customHk2TypesProvider != null && customHk2TypesProvider.getHk2Types().contains(injectedType))) {
filteredInjectionPoints.add(ip);
} else {
//remember the type, we would need to mock it's CDI binding at runtime
hk2ProvidedTypes.add(injectedType);
}
} else {
if (isInjectionProvider(injectedType)) {
if (!isProviderOfJerseyType((ParameterizedType)injectedType)
&& !(customHk2TypesProvider != null && customHk2TypesProvider.getHk2Types().contains(injectedType))) {
filteredInjectionPoints.add(ip);
} else {
//remember the type, we would need to mock it's CDI binding at runtime
hk2ProvidedTypes.add(((ParameterizedType)injectedType).getActualTypeArguments()[0]);
}
} else {
filteredInjectionPoints.add(ip);
}
}
}
return filteredInjectionPoints;
}
private Set hk2ProvidedTypes = Collections.synchronizedSet(new HashSet());
private Set potentionalHk2CustomBoundTypes = Collections.synchronizedSet(new HashSet());
private Set typesSeenBeforeValidation = Collections.synchronizedSet(new HashSet());
private Set jerseyVetoedTypes = Collections.synchronizedSet(new HashSet());
private boolean isInjectionProvider(final Type injectedType) {
return injectedType instanceof ParameterizedType
&& ((ParameterizedType)injectedType).getRawType() == javax.inject.Provider.class;
}
private boolean isProviderOfJerseyType(final ParameterizedType provider) {
final Type firstArgumentType = provider.getActualTypeArguments()[0];
return firstArgumentType instanceof Class && isJerseyOrDependencyType((Class)firstArgumentType);
}
/**
* Auxiliary annotation for mocked beans used to cover Jersey/HK2 injected injection points.
*/
@SuppressWarnings("serial")
public static class CdiDefaultAnnotation extends AnnotationLiteral implements Default {
}
@SuppressWarnings({ "unused", "unchecked", "rawtypes" })
private void afterDiscoveryObserver(@Observes AfterBeanDiscovery abd) {
if (customHk2TypesProvider == null) {
potentionalHk2CustomBoundTypes.removeAll(typesSeenBeforeValidation);
potentionalHk2CustomBoundTypes.removeAll(_getContracts(typesSeenBeforeValidation));
final boolean configLogEnabled = LOGGER.isLoggable(Level.CONFIG);
final Set effectiveHk2CustomBoundTypes = configLogEnabled ? new HashSet() : null;
for (Type t : potentionalHk2CustomBoundTypes) {
if (!isNothingWeWantToMessUpWith(t)) { // need to avoid built-in beans conflict
hk2ProvidedTypes.add(t);
if (configLogEnabled) {
effectiveHk2CustomBoundTypes.add(t);
}
}
}
if (configLogEnabled) {
LOGGER.config(listTypes(new StringBuilder().append("\n"), effectiveHk2CustomBoundTypes).toString());
}
} else {
hk2ProvidedTypes.addAll(customHk2TypesProvider.getHk2Types());
}
for (final Type t: hk2ProvidedTypes) {
abd.addBean(new Hk2Bean(t));
}
}
private Hk2CustomBoundTypesProvider lookupHk2CustomBoundTypesProvider() throws ServiceConfigurationError {
final List> providers = new LinkedList>();
for (final Hk2CustomBoundTypesProvider provider : ServiceFinder.find(Hk2CustomBoundTypesProvider.class)) {
providers.add(new RankedProvider(provider));
}
Collections.sort(providers, new RankedComparator(RankedComparator.Order.DESCENDING));
return providers.isEmpty() ? null : providers.get(0).getProvider();
}
private Set _getContracts(Set types) {
Set result = new HashSet();
for (Type t : types) {
if (t instanceof Class) {
final Class c = (Class)t;
if (!c.isPrimitive() && !c.isSynthetic()) {
_addDerivedContracts(c, result);
}
}
}
return result;
}
private void _addDerivedContracts(Type t, Set result) {
if (t == null || t == java.lang.Object.class) {
return;
}
result.add(t);
if (t instanceof Class) {
Class c = (Class)t;
final Class[] interfaces = c.getInterfaces();
for (Class i : interfaces) {
_addDerivedContracts(i, result);
}
final Type superclass = c.getGenericSuperclass();
_addDerivedContracts(superclass, result);
}
}
private boolean isNothingWeWantToMessUpWith(Type t) {
if (!(t instanceof Class)) {
return false;
}
final Class clazz = (Class)t;
if (clazz.isPrimitive() || clazz.isSynthetic()) {
return true;
}
final Package pkg = clazz.getPackage();
if (pkg == null) {
return true; // we do not want to mess-up with these cases
}
final String pkgName = pkg.getName();
return pkgName.startsWith("java.") || pkgName.startsWith("javax.");
}
private void addInjecteeToSkip(final Class componentClass, final Map, Set> toSkip, final T member) {
if (!toSkip.containsKey(componentClass)) {
toSkip.put(componentClass, new HashSet());
}
toSkip.get(componentClass).add(member);
}
/**
* Introspect given type to determine if it represents a JAX-RS component.
*
* @param clazz type to be introspected.
* @return true if the type represents a JAX-RS component type.
*/
/* package */
static boolean isJaxRsComponentType(final Class clazz) {
return Application.class.isAssignableFrom(clazz) ||
Providers.isJaxRsProvider(clazz) ||
Resource.from(clazz) != null;
}
private boolean isJerseyOrDependencyType(final Class clazz) {
if (clazz.isPrimitive() || clazz.isSynthetic()) {
return false;
}
final Package pkg = clazz.getPackage();
if (pkg == null) { // Class.getPackage() could return null
LOGGER.warning(String.format("Class %s has null package", clazz));
return false;
}
final String pkgName = pkg.getName();
final boolean result = pkgName.contains("org.glassfish.hk2")
|| pkgName.contains("jersey.repackaged")
|| pkgName.contains("org.jvnet.hk2")
|| (pkgName.startsWith("org.glassfish.jersey")
&& !pkgName.startsWith("org.glassfish.jersey.examples")
&& !pkgName.startsWith("org.glassfish.jersey.tests"));
// TODO: refactor this, it needs to get out of this checking method
if (!result) {
potentionalHk2CustomBoundTypes.add(clazz);
}
return result;
}
private static BeanManager beanManagerFromJndi() {
InitialContext initialContext = null;
try {
initialContext = new InitialContext();
return (BeanManager) initialContext.lookup("java:comp/BeanManager");
} catch (final Exception ex) {
try {
return CDI.current().getBeanManager();
} catch (final Exception e) {
LOGGER.config(LocalizationMessages.CDI_BEAN_MANAGER_JNDI_LOOKUP_FAILED());
return null;
}
} finally {
if (initialContext != null) {
try {
initialContext.close();
} catch (final NamingException ignored) {
// no-op
}
}
}
}
private void bindHk2ClassAnalyzer() {
final ClassAnalyzer defaultClassAnalyzer =
locator.getService(ClassAnalyzer.class, ClassAnalyzer.DEFAULT_IMPLEMENTATION_NAME);
final int skippedElements = methodsToSkip.size() + fieldsToSkip.size();
final ClassAnalyzer customizedClassAnalyzer = skippedElements > 0
? new InjecteeSkippingAnalyzer(defaultClassAnalyzer, methodsToSkip, fieldsToSkip)
: defaultClassAnalyzer;
final DynamicConfiguration dc = Injections.getConfiguration(locator);
final ScopedBindingBuilder bindingBuilder =
Injections.newBinder(customizedClassAnalyzer);
bindingBuilder.analyzeWith(ClassAnalyzer.DEFAULT_IMPLEMENTATION_NAME)
.to(ClassAnalyzer.class)
.named(CDI_CLASS_ANALYZER);
Injections.addBinding(bindingBuilder, dc);
dc.commit();
}
private StringBuilder listTypes(final StringBuilder logMsgBuilder, final Collection types) {
for (Type t : types) {
logMsgBuilder.append(String.format(" - %s\n", t));
}
return logMsgBuilder;
}
private abstract class CdiInjectionTarget implements InjectionTarget {
private final InjectionTarget delegate;
protected CdiInjectionTarget(final InjectionTarget delegate) {
this.delegate = delegate;
}
@Override
public void inject(final Object t, final CreationalContext cc) {
delegate.inject(t, cc);
if (locator != null) {
locator.inject(t, CDI_CLASS_ANALYZER);
}
}
@Override
public void postConstruct(final Object t) {
delegate.postConstruct(t);
}
@Override
public void preDestroy(final Object t) {
delegate.preDestroy(t);
}
@Override
public Object produce(final CreationalContext cc) {
return delegate.produce(cc);
}
@Override
public void dispose(final Object t) {
delegate.dispose(t);
}
@Override
public abstract Set getInjectionPoints();
}
private class Hk2Bean implements Bean {
private final Type t;
public Hk2Bean(Type t) {
this.t = t;
}
@Override
public Class getBeanClass() {
return (Class)t;
}
@Override
public Set getInjectionPoints() {
return Collections.emptySet();
}
@Override
public boolean isNullable() {
return true;
}
@Override
public Object create(CreationalContext creationalContext) {
return CdiComponentProvider.this.locator.getService(t);
}
@Override
public void destroy(Object instance, CreationalContext creationalContext) {
}
@Override
public Set getTypes() {
return Collections.singleton(t);
}
@Override
public Set getQualifiers() {
return Collections.singleton(new CdiDefaultAnnotation());
}
@Override
public Class getScope() {
return Dependent.class;
}
@Override
public String getName() {
return t.toString();
}
@Override
public Set getStereotypes() {
return Collections.emptySet();
}
@Override
public boolean isAlternative() {
return false;
}
}
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