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1   /*
2    * Copyright 2006-2011 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
5    * the License. You may obtain a copy of the License at
6    *
7    * https://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
10   * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
11   * specific language governing permissions and limitations under the License.
12   */
13  
14  
15  package org.springframework.security.oauth2.client.token;
16  
17  import org.springframework.security.core.Authentication;
18  import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
19  import org.springframework.security.oauth2.common.OAuth2AccessToken;
20  
21  /**
22   * @author Dave Syer
23   * 
24   */
25  public interface ClientTokenServices {
26  
27  	/**
28  	 * Retrieve the access token for a given resource and user authentication (my be null).
29  	 * 
30  	 * @param resource the resource to be accessed
31  	 * @param authentication the current user authentication (or null if there is none)
32  	 * @return an access token if one has been stored, null otherwise
33  	 */
34  	OAuth2AccessToken getAccessToken(OAuth2ProtectedResourceDetails resource, Authentication authentication);
35  
36  	/**
37  	 * Save or update the access token for this resource and authentication (may be null).
38  	 * 
39  	 * @param resource the resource to be accessed
40  	 * @param authentication the current user authentication (or null if there is none)
41  	 * @param accessToken an access token to be stored
42  	 */
43  	void saveAccessToken(OAuth2ProtectedResourceDetails resource, Authentication authentication,
44  			OAuth2AccessToken accessToken);
45  
46  	/**
47  	 * Remove the token (if any) that is stored with the provided resource and authentication. If there is no such token
48  	 * do nothing.
49  	 * 
50  	 * @param resource the resource to be accessed
51  	 * @param authentication the current user authentication (or null if there is none)
52  	 */
53  	void removeAccessToken(OAuth2ProtectedResourceDetails resource, Authentication authentication);
54  
55  }