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package com.sun.jersey.server.impl.cdi;
import java.lang.annotation.Annotation;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import javax.annotation.ManagedBean;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProvider;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
import com.sun.jersey.core.spi.component.ioc.IoCDestroyable;
import com.sun.jersey.core.spi.component.ioc.IoCFullyManagedComponentProvider;
import com.sun.jersey.core.spi.component.ioc.IoCInstantiatedComponentProvider;
import static com.sun.jersey.server.impl.cdi.Utils.getBean;
import com.sun.jersey.spi.container.WebApplication;
import com.sun.jersey.spi.container.WebApplicationListener;
/**
* Factory for IoCComponentProvider for CDI beans.
*
* Crucially, it passes the WebApplication and ResourceConfig on to the CDIExtension,
* allowing beans registered by the extension to (finally) do some work.
*
* @author Paul.Sandoz@Sun.Com
* @author robc
*/
public class CDIComponentProviderFactory implements
IoCComponentProviderFactory, WebApplicationListener {
private static final Logger LOGGER = Logger.getLogger(
CDIComponentProviderFactory.class.getName());
private final BeanManager beanManager;
private final CDIExtension extension;
public CDIComponentProviderFactory(Object bm, ResourceConfig rc, WebApplication wa) {
beanManager = (BeanManager)bm;
// work around proxying bug in Weld
if (CDIExtension.lookupExtensionInBeanManager) {
extension = Utils.getCdiExtensionInstance(beanManager);
}
else {
extension = CDIExtension.getInitializedExtension();
}
extension.setWebApplication(wa);
extension.setResourceConfig(rc);
}
public void onWebApplicationReady() {
extension.lateInitialize();
}
public IoCComponentProvider getComponentProvider(Class<?> c) {
return getComponentProvider(null, c);
}
public IoCComponentProvider getComponentProvider(ComponentContext cc, final Class<?> c) {
final Bean<?> b = getBean(beanManager, c);
if (b == null) {
return null;
}
final Class<? extends Annotation> s = b.getScope();
final ComponentScope cs = getComponentScope(b);
if (s == Dependent.class) {
if (!c.isAnnotationPresent(ManagedBean.class)) {
return null;
}
LOGGER.fine("Binding the CDI managed bean " + c.getName() +
" in scope " + s.getName() +
" to CDIComponentProviderFactory");
return new ComponentProviderDestroyable() {
// IoCInstantiatedComponentProvider
public Object getInjectableInstance(Object o) {
return o;
}
public Object getInstance() {
final CreationalContext<?> bcc = beanManager.createCreationalContext(b);
return c.cast(beanManager.getReference(b, c, bcc));
}
// IoCDestroyable
public void destroy(Object o) {
final CreationalContext cc = beanManager.createCreationalContext(b);
((Bean)b).destroy(o, cc);
}
};
}
else {
LOGGER.fine("Binding the CDI managed bean " + c.getName() +
" in scope " + s.getName() +
" to CDIComponentProviderFactory in scope " + cs);
return new IoCFullyManagedComponentProvider() {
public ComponentScope getScope() {
return cs;
}
public Object getInstance() {
final CreationalContext<?> bcc = beanManager.createCreationalContext(b);
return c.cast(beanManager.getReference(b, c, bcc));
}
};
}
}
private interface ComponentProviderDestroyable extends IoCInstantiatedComponentProvider, IoCDestroyable {
};
private ComponentScope getComponentScope(Bean<?> b) {
ComponentScope cs = scopeMap.get(b.getScope());
return (cs != null) ? cs : ComponentScope.Undefined;
}
private final Map<Class<? extends Annotation>, ComponentScope> scopeMap = createScopeMap();
private Map<Class<? extends Annotation>, ComponentScope> createScopeMap() {
Map<Class<? extends Annotation>, ComponentScope> m =
new HashMap<Class<? extends Annotation>, ComponentScope>();
m.put(ApplicationScoped.class, ComponentScope.Singleton);
m.put(RequestScoped.class, ComponentScope.PerRequest);
m.put(Dependent.class, ComponentScope.PerRequest);
return Collections.unmodifiableMap(m);
}
}