/*
 * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package sun.net.www.protocol.http;

import java.io.IOException;
import java.io.Serializable;
import java.net.*;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.Enumeration;
import java.util.HashMap;


/**
 * AuthCacheValue: interface to minimise exposure to authentication cache
 * for external users (ie. plugin)
 *
 * @author Michael McMahon
 */

public abstract class AuthCacheValue implements Serializable {

    public enum Type {
        Proxy,
        Server
    };

    /**
     * Caches authentication info entered by user.  See cacheKey()
     */
    static protected AuthCache cache = new AuthCacheImpl();

    public static void setAuthCache (AuthCache map) {
        cache = map;
    }

    /* Package private ctor to prevent extension outside package */

    AuthCacheValue() {}

    abstract Type getAuthType ();

   /**
    * name of server/proxy
    */
    abstract String getHost ();

   /**
    * portnumber of server/proxy
    */
    abstract int getPort();

   /**
    * realm of authentication if known
    */
    abstract String getRealm();

    /**
     * root path of realm or the request path if the root
     * is not known yet.
     */
    abstract String getPath();

    /**
     * returns http or https
     */
    abstract String getProtocolScheme();

    /**
     * the credentials associated with this authentication
     */
    abstract PasswordAuthentication credentials();
}