/*
* Copyright 2006-2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package org.springframework.security.oauth2.provider.token;
import java.util.Collections;
import java.util.List;
import org.springframework.security.oauth2.common.OAuth2AccessToken;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
/**
* A composite token enhancer that loops over its delegate enhancers.
*
* @author Dave Syer
*
*/
public class TokenEnhancerChain implements TokenEnhancer {
private List<TokenEnhancer> delegates = Collections.emptyList();
/**
* @param delegates the delegates to set
*/
public void setTokenEnhancers(List<TokenEnhancer> delegates) {
this.delegates = delegates;
}
/**
* Loop over the {@link #setTokenEnhancers(List) delegates} passing the result into the next member of the chain.
*
* @see org.springframework.security.oauth2.provider.token.TokenEnhancer#enhance(org.springframework.security.oauth2.common.OAuth2AccessToken,
* org.springframework.security.oauth2.provider.OAuth2Authentication)
*/
public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {
OAuth2AccessToken result = accessToken;
for (TokenEnhancer enhancer : delegates) {
result = enhancer.enhance(result, authentication);
}
return result;
}
}