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package org.bouncycastle.asn1.x509;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.SimpleTimeZone;
import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1GeneralizedTime;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.ASN1UTCTime;
import org.bouncycastle.asn1.DERGeneralizedTime;
import org.bouncycastle.asn1.DERUTCTime;
public class Time
extends ASN1Object
implements ASN1Choice
{
ASN1Primitive time;
public static Time getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(obj.getObject()); // must be explicitly tagged
}
public Time(
ASN1Primitive time)
{
if (!(time instanceof ASN1UTCTime)
&& !(time instanceof ASN1GeneralizedTime))
{
throw new IllegalArgumentException("unknown object passed to Time");
}
this.time = time;
}
/**
* Creates a time object from a given date - if the date is between 1950
* and 2049 a UTCTime object is generated, otherwise a GeneralizedTime
* is used.
*
* @param time a date object representing the time of interest.
*/
public Time(
Date time)
{
SimpleTimeZone tz = new SimpleTimeZone(0, "Z");
SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss");
dateF.setTimeZone(tz);
String d = dateF.format(time) + "Z";
int year = Integer.parseInt(d.substring(0, 4));
if (year < 1950 || year > 2049)
{
this.time = new DERGeneralizedTime(d);
}
else
{
this.time = new DERUTCTime(d.substring(2));
}
}
/**
* Creates a time object from a given date and locale - if the date is between 1950
* and 2049 a UTCTime object is generated, otherwise a GeneralizedTime
* is used. You may need to use this constructor if the default locale
* doesn't use a Gregorian calender so that the GeneralizedTime 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 Time(
Date time,
Locale locale)
{
SimpleTimeZone tz = new SimpleTimeZone(0, "Z");
SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss", locale);
dateF.setTimeZone(tz);
String d = dateF.format(time) + "Z";
int year = Integer.parseInt(d.substring(0, 4));
if (year < 1950 || year > 2049)
{
this.time = new DERGeneralizedTime(d);
}
else
{
this.time = new DERUTCTime(d.substring(2));
}
}
public static Time getInstance(
Object obj)
{
if (obj == null || obj instanceof Time)
{
return (Time)obj;
}
else if (obj instanceof ASN1UTCTime)
{
return new Time((ASN1UTCTime)obj);
}
else if (obj instanceof ASN1GeneralizedTime)
{
return new Time((ASN1GeneralizedTime)obj);
}
throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName());
}
public String getTime()
{
if (time instanceof ASN1UTCTime)
{
return ((ASN1UTCTime)time).getAdjustedTime();
}
else
{
return ((ASN1GeneralizedTime)time).getTime();
}
}
public Date getDate()
{
try
{
if (time instanceof ASN1UTCTime)
{
return ((ASN1UTCTime)time).getAdjustedDate();
}
else
{
return ((ASN1GeneralizedTime)time).getDate();
}
}
catch (ParseException e)
{ // this should never happen
throw new IllegalStateException("invalid date string: " + e.getMessage());
}
}
/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* Time ::= CHOICE {
* utcTime UTCTime,
* generalTime GeneralizedTime }
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
return time;
}
public String toString()
{
return getTime();
}
}
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