/*
    * 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.commons.jcs.jcache.extras.cdi;
  
  import javax.cache.spi.CachingProvider;
  import javax.enterprise.context.ApplicationScoped;
  import javax.enterprise.context.spi.CreationalContext;
  import javax.enterprise.inject.spi.Bean;
  import javax.enterprise.inject.spi.InjectionPoint;
  import javax.enterprise.inject.spi.PassivationCapable;
  import java.lang.annotation.Annotation;
  import java.lang.reflect.Type;
  import java.util.HashSet;
  import java.util.Set;
  
  import static java.util.Collections.emptySet;
  
  public class CacheProviderBean implements Bean<CachingProvider>, PassivationCapable
  {
      private final Set<Type> types;
      private final Set<Annotation> qualifiers;
      private final CachingProvider provider;
      private final String id;
  
      public CacheProviderBean(final CachingProvider cacheManager)
      {
          provider = cacheManager;
          id = getClass().getName() + "-" + hashCode();
  
          types = new HashSet<Type>();
          types.add(CachingProvider.class);
          types.add(Object.class);
  
          qualifiers = new HashSet<Annotation>();
          qualifiers.add(DefaultLiteral.INSTANCE);
          qualifiers.add(AnyLiteral.INSTANCE);
      }
  
      @Override
      public Set<Type> getTypes()
      {
          return types;
      }
  
      @Override
      public Set<Annotation> getQualifiers()
      {
          return qualifiers;
      }
  
      @Override
      public Class<? extends Annotation> getScope()
      {
          return ApplicationScoped.class;
      }
  
      @Override
      public String getName()
      {
          return null;
      }
  
      @Override
      public boolean isNullable()
      {
          return false;
      }
  
      @Override
      public Set<InjectionPoint> getInjectionPoints()
      {
          return emptySet();
      }
  
      @Override
      public Class<?> getBeanClass()
      {
          return CachingProvider.class;
      }
  
      @Override
      public Set<Class<? extends Annotation>> getStereotypes()
      {
         return emptySet();
     }
 
     @Override
     public boolean isAlternative()
     {
         return false;
     }
 
     @Override
     public CachingProvider create(final CreationalContext<CachingProvider> cacheManagerCreationalContext)
     {
         return provider;
     }
 
     @Override
     public void destroy(final CachingProvider cacheProvider, final CreationalContext<CachingProvider> cacheManagerCreationalContext)
     {
         provider.close();
     }
 
     @Override
     public String getId()
     {
         return id;
     }
 }