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package com.sun.grizzly.tcp;


/**
 * Adapter. This represents the extention point to any customized
 * http container, like Servlet, static resource, etc.
 *
 * @author Remy Maucherat
 * @author Jeanfrancois Arcand
 */
public interface Adapter {
   
    /** 
     * Invoke the service method. The service method is usually responsible for
     * manipulating the {@link Request} and preparing the {@link Response}. 
     * 
     * @param req The {@link Request}
     * @param res The {@link Response}
     * @exception Exception if an error happens during handling of
     *   the request. Common errors are:
     *   IOException if an input/output error occurs and we are
     *   processing an included servlet (otherwise it is swallowed and
     *   handled by the top level error handler mechanism)
     *       
ServletException if a servlet throws an exception and
     *  we are processing an included servlet (otherwise it is swallowed
     *  and handled by the top level error handler mechanism)
     *       
     */
    public void service(Request req, Response res)
	throws Exception;
    
    
    /** 
     * Finish the response and dedide if the {@link Request}/{@link Response} 
     * object must be recycled. 
     * 
     * @param req The {@link Request}
     * @param res The {@link Response}
     */   
    public void afterService(Request req, Response res) throws Exception;
 
}