2 * Copyright 2005 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.wamblee.security.authorization;
19 import org.wamblee.persistence.Persistent;
22 * Service to determine if access to a certain resource is allowed.
24 public interface AuthorizationService extends Persistent {
27 * Checks whether an operation is allowed on a resource.
28 * @param aResource Resource.
29 * @param aOperation Operation.
30 * @return Checks whether the operation is allowed on a resource.
32 boolean isAllowed(Object aResource, Operation aOperation);
35 * Same as {@link #isAllowed(Object, Operation)} but throws a
36 * <code>RuntimeException</code> in case access is not allowed.
37 * @param aResource Resource to check.
38 * @param aOperation Operation to perform.
39 * @return Resource that was checked.
41 <T> T check(T aResource, Operation aOperation);
44 * Gets the authorization rules.
47 AuthorizationRule[] getRules();
50 * Appends a new authorization rule to the end.
51 * @param aRule Rule to append.
53 void appendRule(AuthorizationRule aRule);
57 * @param aRule Index of the rule to remove.
59 void removeRule(int aIndex);
63 * @param aIndex Index of the position of the rule after insertion.
64 * @param aRule Rule to insert.
66 void insertRuleAfter(int aIndex, AuthorizationRule aRule);