2 * Copyright 2005-2010 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.
16 package org.wamblee.security.authorization;
18 import org.wamblee.security.authentication.UserAccessor;
19 import org.wamblee.security.authentication.UserAdministration;
22 * Service to determine if access to a certain resource is allowed.
24 * @author Erik Brakkee
26 public interface AuthorizationService {
29 * Checks whether an operation is allowed on a resource.
36 * @return Checks whether the operation is allowed on a resource.
38 boolean isAllowed(Object aResource, Operation aOperation);
41 * Checks if the given operation is allowed on the resource.
49 * @return Resource passed in in case access is allowed
50 * @throws AuthorizationException
51 * In case access is denied.
53 <T> T check(T aResource, Operation aOperation);
56 * Gets the authorization rules.
60 AuthorizationRule[] getRules();
63 * Appends a new authorization rule to the end.
68 void appendRule(AuthorizationRule aRule);
74 * Index of the rule to remove.
76 void removeRule(int aIndex);
82 * Index of the position of the rule after insertion.
86 void insertRuleAfter(int aIndex, AuthorizationRule aRule);
89 * Sets the user accessor so that the authorization service can get access
90 * to the logged in user.
92 * @param aUserAccessor
95 void setUserAccessor(UserAccessor aUserAccessor);
98 * Sets the user administration so that the authorization service can check
99 * information for the the current user.
101 * @param aUserAdmin User administration.
103 void setUserAdministration(UserAdministration aUserAdmin);