content: /**
   * 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.activemq.shiro.authz;
  
  import org.apache.shiro.authz.Permission;
  
  import java.util.Collection;
  
  /**
   * An {@code ActionPermissionResolver} will inspect an {@link Action} and return
   * {@link Permission}s that must be granted to a {@link org.apache.shiro.subject.Subject Subject} in order for the
   * {@code Subject} to execute the action.
   * <p/>
   * If a {@code Subject} is not granted all of the returned permissions, the {@code Action} will not be executed.
   *
   * @since 5.10.0
   */
  public interface ActionPermissionResolver {
  
      /**
       * Returns all {@link Permission}s that must be granted to a
       * {@link org.apache.shiro.subject.Subject Subject} in order for the {@code Subject} to execute the action, or
       * an empty collection if no permissions are required.
       * <p/>
       * Most implementations will probably return a single Permission, but multiple permissions are possible, especially
       * if the Action represents behavior attempted on a
       * <a href="http://activemq.apache.org/composite-destinations.html">Composite Destination</a>.
       *
       * @param action the action attempted
       * @return all {@link Permission}s that must be granted to a
       *         {@link org.apache.shiro.subject.Subject Subject} in order for the {@code Subject} to execute the action,
       *         or an empty collection if no permissions are required.
       */
      Collection<Permission> getPermissions(Action action);
  
  }
  