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Cloud Foundry User Account and Authentication

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package org.cloudfoundry.identity.uaa.oauth;

import java.util.HashMap;
import java.util.Map;

import org.springframework.security.oauth2.provider.OAuth2Authentication;

import static org.cloudfoundry.identity.uaa.oauth.token.ClaimConstants.EXTERNAL_ATTR;

public interface UaaTokenEnhancer {

    Map getExternalAttributes(OAuth2Authentication authentication);

    default Map enhance(Map claims, OAuth2Authentication authentication) {
        Map result = new HashMap<>();
        result.put(EXTERNAL_ATTR, getExternalAttributes(authentication));
        return result;
    }
}