/*

  * Copyright 2007 Ivan Dubrov

  * Copyright 2007 Robin Helgelin

  *

  * Licensed 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 nu.localhost.tapestry.acegi.services.internal;

 import java.util.Iterator;

 import org.acegisecurity.ConfigAttributeDefinition;

 import org.acegisecurity.intercept.method.MethodDefinitionSource;

 /**

  * Implementation of {@link MethodDefinitionSource} that simply casts security

  * object to the {@link ConfigAttributeDefinition}.

  * @author Ivan Dubrov

  */

 public class StaticDefinitionSource implements MethodDefinitionSource {

     /**

      * This implementation simply casts security object to the

      * {@link ConfigAttributeDefinition}.

      * @param object security object

      * @return security object casted to {@link ConfigAttributeDefinition}.

      */

     public final ConfigAttributeDefinition getAttributes(final Object object) {

         return (ConfigAttributeDefinition) object;

     }

     /**

      * Returns null.

      * @return null.

      */

     public final Iterator getConfigAttributeDefinitions() {

         return null;

     }

     /**

      * Returns true if clazz is extension of {@link ConfigAttributeDefinition}.

      * @param clazz the class that is being queried

      * @return true if clazz is extension of {@link ConfigAttributeDefinition}.

      */

     public final boolean supports(final Class clazz) {

         return ConfigAttributeDefinition.class.isAssignableFrom(clazz);

     }

 }