/*******************************************************************************
 * ============LICENSE_START====================================================
 * * org.onap.aaf
 * * ===========================================================================
 * * Copyright © 2017 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====================================================
 * *
 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * *
 ******************************************************************************/
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.
 *  
 *
 */
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);
}