/*

  * 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.shiro.guice;

 import com.google.inject.TypeLiteral;

 import com.google.inject.matcher.Matcher;

 import com.google.inject.matcher.Matchers;

 import com.google.inject.spi.InjectionListener;

 import org.apache.shiro.util.Destroyable;

 /**

  * Injection listener that assists with honoring the {@link org.apache.shiro.util.Destroyable} interface.

  *

  * @param <I>

  */

 class DestroyableInjectionListener<I extends Destroyable> implements InjectionListener<I> {

     public static final Matcher<TypeLiteral> MATCHER = ShiroMatchers.typeLiteral(Matchers.subclassesOf(Destroyable.class));

     private DestroyableRegistry registry;

     public DestroyableInjectionListener(DestroyableRegistry registry) {

         this.registry = registry;

     }

     public void afterInjection(Destroyable injectee) {

         registry.add(injectee);

     }

     public static interface DestroyableRegistry {

         void add(Destroyable destroyable);

     }

 }