/*

  * 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.aop;

 import com.google.inject.AbstractModule;

 import com.google.inject.matcher.AbstractMatcher;

 import com.google.inject.matcher.Matchers;

 import org.apache.shiro.aop.AnnotationMethodInterceptor;

 import org.apache.shiro.aop.AnnotationResolver;

 import org.apache.shiro.aop.DefaultAnnotationResolver;

 import org.apache.shiro.authz.aop.*;

 import java.lang.annotation.Annotation;

 import java.lang.reflect.Method;

 /**

  * Install this module to enable Shiro AOP functionality in Guice.  You may extend it to add your own Shiro

  * interceptors, override the default ones, or provide a specific {@link org.apache.shiro.aop.AnnotationResolver}.

  */

 public class ShiroAopModule extends AbstractModule {

     @Override

     protected final void configure() {

         AnnotationResolver resolver = createAnnotationResolver();

         configureDefaultInterceptors(resolver);

         configureInterceptors(resolver);

     }

     protected final void bindShiroInterceptor(final AnnotationMethodInterceptor methodInterceptor) {

         bindInterceptor(Matchers.any(), new AbstractMatcher<Method>() {

             public boolean matches(Method method) {

                 Class<? extends Annotation> annotation = methodInterceptor.getHandler().getAnnotationClass();

                 return method.getAnnotation(annotation) != null

                         || method.getDeclaringClass().getAnnotation(annotation) != null;

             }

         }, new AopAllianceMethodInterceptorAdapter(methodInterceptor));

     }

     protected AnnotationResolver createAnnotationResolver() {

         return new DefaultAnnotationResolver();

     }

     protected void configureDefaultInterceptors(AnnotationResolver resolver) {

         bindShiroInterceptor(new RoleAnnotationMethodInterceptor(resolver));

         bindShiroInterceptor(new PermissionAnnotationMethodInterceptor(resolver));

         bindShiroInterceptor(new AuthenticatedAnnotationMethodInterceptor(resolver));

         bindShiroInterceptor(new UserAnnotationMethodInterceptor(resolver));

         bindShiroInterceptor(new GuestAnnotationMethodInterceptor(resolver));

     }

     protected void configureInterceptors(AnnotationResolver resolver) {

     }

 }