/*
* Copyright 2009 JBoss, a divison Red Hat, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.cdi.server;
import static java.util.Arrays.asList;
import static java.util.Collections.unmodifiableSet;
import org.jboss.errai.bus.client.framework.RequestDispatcher;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.util.AnnotationLiteral;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
* Basically a bean wrapper that provides CDI meta data.
* It's used to inject the {@link org.jboss.errai.bus.client.framework.MessageBus} into the CDI context.
*
* @author Mike Brock
*/
public class RequestDispatcherMetaData implements Bean {
final InjectionTarget it;
final RequestDispatcher delegate;
static final Set<Annotation> qualifiers = unmodifiableSet(new HashSet<Annotation>(
asList(new AnnotationLiteral<Default>() {
},
new AnnotationLiteral<Any>() {
}
)));
static final Set<Type> types = unmodifiableSet(new HashSet<Type>(asList(RequestDispatcher.class, Object.class)));
public RequestDispatcherMetaData(final BeanManager bm, final RequestDispatcher delegate) {
//use this to read annotations of the class
final AnnotatedType at = bm.createAnnotatedType(delegate.getClass());
//use this to create the class and inject dependencies
this.it = bm.createInjectionTarget(at);
// invocation target
this.delegate = delegate;
}
public Class<?> getBeanClass() {
return RequestDispatcher.class;
}
public Set<InjectionPoint> getInjectionPoints() {
return it.getInjectionPoints();
}
public String getName() {
return null;
}
public Set<Annotation> getQualifiers() {
return qualifiers;
}
public Class<? extends Annotation> getScope() {
return Dependent.class;
}
public Set<Class<? extends Annotation>> getStereotypes() {
return Collections.emptySet();
}
public Set<Type> getTypes() {
return types;
}
public boolean isAlternative() {
return false;
}
public boolean isNullable() {
return false;
}
public Object create(CreationalContext ctx) {
it.inject(delegate, ctx);
it.postConstruct(delegate);
return delegate;
}
public void destroy(Object instance, CreationalContext ctx) {
it.preDestroy(instance);
it.dispose(instance);
ctx.release();
}
}