/*
 * Copyright 1997-2007 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 com.sun.jmx.snmp;



/**
 * Is used to represent an SNMP value.
 * The <CODE>Opaque</CODE> type is defined in RFC 1155.
 *
 * <p><b>This API is a Sun Microsystems internal API  and is subject
 * to change without notice.</b></p>
 */

public class SnmpOpaque extends SnmpString {
    private static final long serialVersionUID = 380952213936036664L;

    // CONSTRUCTORS
    //-------------
    /**
     * Constructs a new <CODE>SnmpOpaque</CODE> from the specified bytes array.
     * @param v The bytes composing the opaque value.
     */
    public SnmpOpaque(byte[] v) {
        super(v) ;
    }

    /**
     * Constructs a new <CODE>SnmpOpaque</CODE> with the specified <CODE>Bytes</CODE> array.
     * @param v The <CODE>Bytes</CODE> composing the opaque value.
     */
    public SnmpOpaque(Byte[] v) {
        super(v) ;
    }

    /**
     * Constructs a new <CODE>SnmpOpaque</CODE> from the specified <CODE>String</CODE> value.
     * @param v The initialization value.
     */
    public SnmpOpaque(String v) {
        super(v) ;
    }

    // PUBLIC METHODS
    //---------------
    /**
     * Converts the opaque to its <CODE>String</CODE> form, that is, a string of
     * bytes expressed in hexadecimal form.
     * @return The <CODE>String</CODE> representation of the value.
     */
    public String toString() {
        StringBuffer result = new StringBuffer() ;
        for (int i = 0 ; i < value.length ; i++) {
            byte b = value[i] ;
            int n = (b >= 0) ? b : b + 256 ;
            result.append(Character.forDigit(n / 16, 16)) ;
            result.append(Character.forDigit(n % 16, 16)) ;
        }
        return result.toString() ;
    }

    /**
     * Returns a textual description of the type object.
     * @return ASN.1 textual description.
     */
    final public String getTypeName() {
        return name ;
    }

    // VARIABLES
    //----------
    /**
     * Name of the type.
     */
    final static String name = "Opaque" ;
}
