/* * Copyright (c) 1997, 2000, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.security.x509; import java.io.IOException; import sun.security.util.*; /** * This interface specifies the abstract methods which have to be * implemented by all the members of the GeneralNames ASN.1 object. * * @author Amit Kapoor * @author Hemma Prafullchandra */public interface GeneralNameInterface {    /**     * The list of names supported.     */    public static final int NAME_ANY = 0;    public static final int NAME_RFC822 = 1;    public static final int NAME_DNS = 2;    public static final int NAME_X400 = 3;    public static final int NAME_DIRECTORY = 4;    public static final int NAME_EDI = 5;    public static final int NAME_URI = 6;    public static final int NAME_IP = 7;    public static final int NAME_OID = 8;     /**     * The list of constraint results.     */    public static final int NAME_DIFF_TYPE = -1; /* input name is different type from name (i.e. does not constrain) */    public static final int NAME_MATCH = 0;      /* input name matches name */    public static final int NAME_NARROWS = 1;    /* input name narrows name */    public static final int NAME_WIDENS = 2;     /* input name widens name */    public static final int NAME_SAME_TYPE = 3;  /* input name does not match, narrow, or widen, but is same type */     /**     * Return the type of the general name, as     * defined above.     */    int getType();     /**     * Encode the name to the specified DerOutputStream.     *     * @param out the DerOutputStream to encode the GeneralName to.     * @exception IOException thrown if the GeneralName could not be     *            encoded.     */    void encode(DerOutputStream out) throws IOException;     /**     * Return type of constraint inputName places on this name:<ul>     *   <li>NAME_DIFF_TYPE = -1: input name is different type from name (i.e. does not constrain).     *   <li>NAME_MATCH = 0: input name matches name.     *   <li>NAME_NARROWS = 1: input name narrows name (is lower in the naming subtree)     *   <li>NAME_WIDENS = 2: input name widens name (is higher in the naming subtree)     *   <li>NAME_SAME_TYPE = 3: input name does not match or narrow name, but is same type.     * </ul>.  These results are used in checking NameConstraints during     * certification path verification.     *     * @param inputName to be checked for being constrained     * @returns constraint type above     * @throws UnsupportedOperationException if name is same type, but comparison operations are     *          not supported for this name type.     */    int constrains(GeneralNameInterface inputName) throws UnsupportedOperationException;     /**     * Return subtree depth of this name for purposes of determining     * NameConstraints minimum and maximum bounds and for calculating     * path lengths in name subtrees.     *     * @returns distance of name from root     * @throws UnsupportedOperationException if not supported for this name type     */    int subtreeDepth() throws UnsupportedOperationException;}