org.bouncycastle.asn1.eac.PackedDate Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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/***************************************************************/
/******    DO NOT EDIT THIS CLASS bc-java SOURCE FILE     ******/
/***************************************************************/
package org.bouncycastle.asn1.eac;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.SimpleTimeZone;

import org.bouncycastle.util.Arrays;

/**
 * EAC encoding date object
 */
public class PackedDate
{
    private byte[]      time;

    public PackedDate(
        String time)
    {
        this.time = convert(time);
    }

    /**
     * Base constructor from a java.util.date object.
     *
     * @param time a date object representing the time of interest.
     */
    public PackedDate(
        Date time)
    {
        SimpleDateFormat dateF = new SimpleDateFormat("yyMMdd'Z'");

        dateF.setTimeZone(new SimpleTimeZone(0,"Z"));

        this.time = convert(dateF.format(time));
    }

    /**
     * Base constructor from a java.util.date object. You may need to use this constructor if the default locale
     * doesn't use a Gregorian calender so that the PackedDate produced is compatible with other ASN.1 implementations.
     *
     * @param time a date object representing the time of interest.
     * @param locale an appropriate Locale for producing an ASN.1 GeneralizedTime value.
     */
    public PackedDate(
        Date time,
        Locale locale)
    {
        SimpleDateFormat dateF = new SimpleDateFormat("yyMMdd'Z'", locale);

        dateF.setTimeZone(new SimpleTimeZone(0,"Z"));

        this.time = convert(dateF.format(time));
    }

    private byte[] convert(String sTime)
    {
        char[] digs = sTime.toCharArray();
        byte[] date = new byte[6];

        for (int i = 0; i != 6; i++)
        {
            date[i] = (byte)(digs[i] - '0');
        }

        return date;
    }

    PackedDate(
        byte[] bytes)
    {
        this.time = bytes;
    }

    /**
     * return the time as a date based on whatever a 2 digit year will return. For
     * standardised processing use getAdjustedDate().
     *
     * @return the resulting date
     * @exception java.text.ParseException if the date string cannot be parsed.
     */
    public Date getDate()
        throws ParseException
    {
        SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMdd");

        return dateF.parse("20" + toString());
    }

    public int hashCode()
    {
        return Arrays.hashCode(time);
    }

    public boolean equals(Object o)
    {
        if (!(o instanceof PackedDate))
        {
            return false;
        }

        PackedDate other = (PackedDate)o;

        return Arrays.areEqual(time, other.time);
    }

    public String toString() 
    {
        char[]  dateC = new char[time.length];

        for (int i = 0; i != dateC.length; i++)
        {
            dateC[i] = (char)((time[i] & 0xff) + '0');
        }

        return new String(dateC);
    }

    public byte[] getEncoding()
    {
        return Arrays.clone(time);
    }
}