package org.apache.onami.test.handler;

 /*

  * 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.

  */

 import java.lang.annotation.Annotation;

 import java.lang.reflect.AccessibleObject;

 import java.lang.reflect.Member;

 import java.util.HashSet;

 import java.util.Set;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import org.apache.onami.test.reflection.AnnotationHandler;

 import org.apache.onami.test.reflection.HandleException;

 /**

  * Handler class to handle all {@link com.google.inject.Inject} annotations.

  *

  * @param <A> whatever annotation type

  * @see org.apache.onami.test.reflection.ClassVisitor

  */

 public final class GuiceInjectableClassHandler<A extends Annotation>

     implements AnnotationHandler<A, AccessibleObject>

 {

     private static final Logger LOGGER = Logger.getLogger( GuiceInjectableClassHandler.class.getName() );

     /**

      * Contains the guice injectable classes founded, after inspection.

      */

     protected final Set<Class<?>> classes = new HashSet<Class<?>>();

     /**

      * Return all {@link Class} that contains at last one {@link com.google.inject.Inject} annotation.

      *

      * @return {@link Class} array.

      */

     public Class<?>[] getClasses()

     {

         return classes.toArray( new Class<?>[classes.size()] );

     }

     /**

      * {@inheritDoc}

      */

     public void handle( A annotation, AccessibleObject element )

         throws HandleException

     {

         Class<?> type = null;

         if ( element instanceof Member )

         {

             type = ( (Member) element ).getDeclaringClass();

         }

         if ( type != null && !classes.contains( type ) )

         {

             if ( LOGGER.isLoggable( Level.FINER ) )

             {

                 LOGGER.finer( "   Found injectable type: " + type );

             }

             classes.add( type );

         }

     }

 }