| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.webbeans.portable; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.util.Map; |
| |
| import javax.enterprise.event.Event; |
| import javax.enterprise.inject.spi.InjectionPoint; |
| import javax.enterprise.inject.spi.Interceptor; |
| |
| import org.apache.webbeans.config.WebBeansContext; |
| import org.apache.webbeans.context.creational.CreationalContextImpl; |
| import org.apache.webbeans.event.EventImpl; |
| import org.apache.webbeans.exception.WebBeansException; |
| |
| public class EventProducer<T> extends AbstractProducer<Event<T>> |
| { |
| |
| private WebBeansContext webBeansContext; |
| |
| public EventProducer(WebBeansContext webBeansContext) |
| { |
| this.webBeansContext = webBeansContext; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected Event<T> produce(Map<Interceptor<?>, ?> interceptors, CreationalContextImpl<Event<T>> creationalContext) |
| { |
| Event<T> instance = null; |
| InjectionPoint injectionPoint = null; |
| //TODO What should we do here if creationalContext is not instanceof CreationalContextImpl? |
| if (creationalContext instanceof CreationalContextImpl) |
| { |
| injectionPoint = ((CreationalContextImpl<Event<T>>)creationalContext).getInjectionPoint(); |
| } |
| |
| Type eventType; |
| |
| if(injectionPoint != null) |
| { |
| Type[] eventActualTypeArgs; |
| Type type = injectionPoint.getType(); |
| ParameterizedType pt = (ParameterizedType) type; |
| eventActualTypeArgs = pt.getActualTypeArguments(); |
| |
| //First argument and sole argument is actual Event type |
| //Example : Event<MyEvent> |
| eventType = eventActualTypeArgs[0]; |
| |
| //Event qualifiers |
| Annotation[] qualifiers = new Annotation[injectionPoint.getQualifiers().size()]; |
| qualifiers = injectionPoint.getQualifiers().toArray(qualifiers); |
| |
| try |
| { |
| instance = new EventImpl<T>(qualifiers, eventType, injectionPoint, webBeansContext); |
| } |
| catch (Exception e) |
| { |
| throw new WebBeansException("Exception in creating Event implicit component for event type : " |
| + eventType); |
| } |
| finally |
| { |
| if (creationalContext instanceof CreationalContextImpl) |
| { |
| ((CreationalContextImpl<Event<T>>)creationalContext).removeInjectionPoint(); |
| } |
| } |
| |
| } |
| |
| return instance; |
| } |
| } |