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 20 /** 21 * @author Dave Syer 22 * 23 */ 24 public interface ClientKeyGenerator { 25 26 /** 27 * @param resource a protected resource declaration 28 * @param authentication a user Authentication (possibly null) 29 * @return a unique key identifying an access token for this pair 30 */ 31 String extractKey(OAuth2ProtectedResourceDetails resource, Authentication authentication); 32 33 }