/* * Copyright (c) 1997, 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 java.math.BigInteger; import sun.misc.HexDumpEncoder;import sun.security.util.*; /** * This class defines the UniqueIdentity class used by certificates. * * @author Amit Kapoor * @author Hemma Prafullchandra */public class UniqueIdentity {    // Private data members    private BitArray    id;     /**     * The default constructor for this class.     *     * @param id the byte array containing the unique identifier.     */    public UniqueIdentity(BitArray id) {        this.id = id;    }     /**     * The default constructor for this class.     *     * @param id the byte array containing the unique identifier.     */    public UniqueIdentity(byte[] id) {        this.id = new BitArray(id.length*8, id);    }     /**     * Create the object, decoding the values from the passed DER stream.     *     * @param in the DerInputStream to read the UniqueIdentity from.     * @exception IOException on decoding errors.     */    public UniqueIdentity(DerInputStream in) throws IOException {        DerValue derVal = in.getDerValue();        id = derVal.getUnalignedBitString(true);    }     /**     * Create the object, decoding the values from the passed DER stream.     *     * @param derVal the DerValue decoded from the stream.     * @param tag the tag the value is encoded under.     * @exception IOException on decoding errors.     */    public UniqueIdentity(DerValue derVal) throws IOException {        id = derVal.getUnalignedBitString(true);    }     /**     * Return the UniqueIdentity as a printable string.     */    public String toString() {        return ("UniqueIdentity:" + id.toString() + "\n");    }     /**     * Encode the UniqueIdentity in DER form to the stream.     *     * @param out the DerOutputStream to marshal the contents to.     * @param tag enocode it under the following tag.     * @exception IOException on errors.     */    public void encode(DerOutputStream out, byte tag) throws IOException {        byte[] bytes = id.toByteArray();        int excessBits = bytes.length*8 - id.length();         out.write(tag);        out.putLength(bytes.length + 1);         out.write(excessBits);        out.write(bytes);    }     /**     * Return the unique id.     */    public boolean[] getId() {        if (id == null) return null;         return id.toBooleanArray();    }}