/**
 * ============LICENSE_START====================================================
 * org.onap.aaf
 * ===========================================================================
 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * 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.
 * ============LICENSE_END====================================================
 *
 */

package org.onap.aaf.cadi.taf;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.onap.aaf.cadi.CachedPrincipal;
import org.onap.aaf.cadi.Taf.LifeForm;

/**
 * A TAF which is in a specific HTTP environment in which the engine implements 
 * javax Servlet.
 * 
 * Using the Http Request and Response interfaces takes the effort out of implementing in almost any kind of
 * HTTP Container or Engine.
 *  
 * @author Jonathan
 *
 */
public interface HttpTaf {
    /**
     * validate
     * 
     * Validate the Request, and respond with created TafResp object.
     * 
     * @param reading
     * @param req
     * @param resp
     * @return
     */
    public TafResp validate(LifeForm reading, HttpServletRequest req, HttpServletResponse resp);
    
    /**
     * Re-Validate Credential
     * 
     * @param prin
     * @return
     */
    public CachedPrincipal.Resp revalidate(CachedPrincipal prin,Object state);
}