/*

  * 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.myfaces.config.annotation;

 import java.lang.annotation.Annotation;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Map;

 import java.util.Set;

 import javax.enterprise.event.Observes;

 import javax.enterprise.inject.spi.AnnotatedType;

 import javax.enterprise.inject.spi.Extension;

 import javax.enterprise.inject.spi.ProcessAnnotatedType;

 import javax.faces.bean.ManagedBean;

 import javax.faces.component.FacesComponent;

 import javax.faces.component.behavior.FacesBehavior;

 import javax.faces.convert.FacesConverter;

 import javax.faces.render.FacesBehaviorRenderer;

 import javax.faces.render.FacesRenderer;

 import javax.faces.validator.FacesValidator;

 import javax.faces.view.facelets.FaceletsResourceResolver;

 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFWebConfigParam;

 import org.apache.myfaces.config.element.NamedEvent;

 public class CdiAnnotationProviderExtension implements Extension

 {

     /**

      * Defines if CDI should be used for annotation scanning to improve the startup performance.

      */

     @JSFWebConfigParam(since="2.2.9")

     public static final String USE_CDI_FOR_ANNOTATION_SCANNING

             = "org.apache.myfaces.annotation.USE_CDI_FOR_ANNOTATION_SCANNING";

     private final Map<Class<? extends Annotation>, Set<Class<?>>> map;

     private final Class<? extends Annotation>[] annotationsToScan;

     public CdiAnnotationProviderExtension()

     {

         map = new HashMap<Class<? extends Annotation>, Set<Class<?>>>();

         annotationsToScan = new Class[] {

             FacesComponent.class,

             FacesBehavior.class,

             FacesConverter.class,

             FacesValidator.class,

             FacesRenderer.class,

             ManagedBean.class,

             NamedEvent.class,

             FacesBehaviorRenderer.class,

             FaceletsResourceResolver.class

         };

     }

     <T> void processAnnotatedType(@Observes ProcessAnnotatedType<T> pat)

     {

         AnnotatedType<T> type = pat.getAnnotatedType();

         for (Class<? extends Annotation> annotation : annotationsToScan)

         {

             if (type.isAnnotationPresent(annotation))

             {

                 Set<Class<?>> set = map.get(annotation);

                 if (set == null)

                 {

                     set = new HashSet<Class<?>>();

                     map.put(annotation, set);

                 }

                 set.add(type.getJavaClass());

             }

         }

     }

     public Map<Class<? extends Annotation>, Set<Class<?>>> getMap()

     {

         return map;

     }

 }