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 * @author Erik Brakkee
26 public interface AuthorizationService extends Persistent {
29 * Checks whether an operation is allowed on a resource.
30 * @param aResource Resource.
31 * @param aOperation Operation.
32 * @return Checks whether the operation is allowed on a resource.
34 boolean isAllowed(Object aResource, Operation aOperation);
37 * Same as {@link #isAllowed(Object, Operation)} but throws a
38 * <code>RuntimeException</code> in case access is not allowed.
39 * @param aResource Resource to check.
40 * @param aOperation Operation to perform.
41 * @return Resource that was checked.
43 <T> T check(T aResource, Operation aOperation);
46 * Gets the authorization rules.
49 AuthorizationRule[] getRules();
52 * Appends a new authorization rule to the end.
53 * @param aRule Rule to append.
55 void appendRule(AuthorizationRule aRule);
59 * @param aRule Index of the rule to remove.
61 void removeRule(int aIndex);
65 * @param aIndex Index of the position of the rule after insertion.
66 * @param aRule Rule to insert.
68 void insertRuleAfter(int aIndex, AuthorizationRule aRule);