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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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 * accompanied this code).
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package sun.security.x509;

import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;

import sun.security.util.*;

This class defines the SerialNumber class used by certificates.
Author:
Amit Kapoor, Hemma Prafullchandra/**
 * This class defines the SerialNumber class used by certificates.
 *
 * @author Amit Kapoor
 * @author Hemma Prafullchandra
 */
public class SerialNumber {
    private BigInteger  serialNum;

    // Construct the class from the DerValue
    private void construct(DerValue derVal) throws IOException {
        serialNum = derVal.getBigInteger();
        if (derVal.data.available() != 0) {
            throw new IOException("Excess SerialNumber data");
        }
    }

    
The default constructor for this class using BigInteger.
Params:
num – the BigInteger number used to create the serial number./**
     * The default constructor for this class using BigInteger.
     *
     * @param num the BigInteger number used to create the serial number.
     */
    public SerialNumber(BigInteger num) {
        serialNum = num;
    }

    
The default constructor for this class using int.
Params:
num – the BigInteger number used to create the serial number./**
     * The default constructor for this class using int.
     *
     * @param num the BigInteger number used to create the serial number.
     */
    public SerialNumber(int num) {
        serialNum = BigInteger.valueOf(num);
    }

    
Create the object, decoding the values from the passed DER stream.
Params:
in – the DerInputStream to read the SerialNumber from.
Throws:
IOException – on decoding errors./**
     * Create the object, decoding the values from the passed DER stream.
     *
     * @param in the DerInputStream to read the SerialNumber from.
     * @exception IOException on decoding errors.
     */
    public SerialNumber(DerInputStream in) throws IOException {
        DerValue derVal = in.getDerValue();
        construct(derVal);
    }

    
Create the object, decoding the values from the passed DerValue.
Params:
val – the DerValue to read the SerialNumber from.
Throws:
IOException – on decoding errors./**
     * Create the object, decoding the values from the passed DerValue.
     *
     * @param val the DerValue to read the SerialNumber from.
     * @exception IOException on decoding errors.
     */
    public SerialNumber(DerValue val) throws IOException {
        construct(val);
    }

    
Create the object, decoding the values from the passed stream.
Params:
in – the InputStream to read the SerialNumber from.
Throws:
IOException – on decoding errors./**
     * Create the object, decoding the values from the passed stream.
     *
     * @param in the InputStream to read the SerialNumber from.
     * @exception IOException on decoding errors.
     */
    public SerialNumber(InputStream in) throws IOException {
        DerValue derVal = new DerValue(in);
        construct(derVal);
    }

    
Return the SerialNumber as user readable string.
/**
     * Return the SerialNumber as user readable string.
     */
    public String toString() {
        return "SerialNumber: [" + Debug.toHexString(serialNum) + ']';
    }

    
Encode the SerialNumber in DER form to the stream.
Params:
out – the DerOutputStream to marshal the contents to.
Throws:
IOException – on errors./**
     * Encode the SerialNumber in DER form to the stream.
     *
     * @param out the DerOutputStream to marshal the contents to.
     * @exception IOException on errors.
     */
    public void encode(DerOutputStream out) throws IOException {
        out.putInteger(serialNum);
    }

    
Return the serial number.
/**
     * Return the serial number.
     */
    public BigInteger getNumber() {
        return serialNum;
    }
}