package org.apache.onami.autobind.annotations.features;

 /*

  * 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 static java.lang.String.format;

 import static java.util.logging.Level.FINE;

 import static org.apache.onami.autobind.annotations.To.Type.IMPLEMENTATION;

 import static org.apache.onami.autobind.install.BindingStage.BINDING;

 import static org.apache.onami.autobind.install.BindingStage.IGNORE;

 import java.lang.annotation.Annotation;

 import java.util.Map;

 import javax.inject.Singleton;

 import org.apache.onami.autobind.annotations.Bind;

 import org.apache.onami.autobind.install.BindingStage;

 @Singleton

 public class ImplementationBindingFeature

     extends AutoBindingFeature

 {

     @Override

     public BindingStage accept( Class<Object> annotatedClass, Map<String, Annotation> annotations )

     {

         if ( annotations.containsKey( Bind.class.getName() ) )

         {

             Bind annotation = (Bind) annotations.get( Bind.class.getName() );

             if ( !annotation.multiple() && ( IMPLEMENTATION == annotation.to().value() ) )

             {

                 return BINDING;

             }

         }

         return IGNORE;

     }

     @Override

     public void process( final Class<Object> annotatedClass, final Map<String, Annotation> annotations )

     {

         final boolean asSingleton =

             ( annotations.containsKey( com.google.inject.Singleton.class.getName() ) || annotations.containsKey( javax.inject.Singleton.class.getName() ) );

         if ( _logger.isLoggable( FINE ) )

         {

             _logger.fine( format( "Binding Class %s. Singleton? %s ", annotatedClass, asSingleton ) );

         }

         bind( annotatedClass, null, ( asSingleton ? Singleton.class : null ) );

     }

 }