package org.bouncycastle.asn1.x509;
import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERGeneralizedTime;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DERUTCTime;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.SimpleTimeZone;
public class Time
extends ASN1Encodable
implements ASN1Choice
{
DERObject time;
public static Time getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(obj.getObject()); // must be explicitly tagged
}
public Time(
DERObject time)
{
if (!(time instanceof DERUTCTime)
&& !(time instanceof DERGeneralizedTime))
{
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.
*/
public Time(
Date date)
{
SimpleTimeZone tz = new SimpleTimeZone(0, "Z");
SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss");
dateF.setTimeZone(tz);
String d = dateF.format(date) + "Z";
int year = Integer.parseInt(d.substring(0, 4));
if (year < 1950 || year > 2049)
{
time = new DERGeneralizedTime(d);
}
else
{
time = new DERUTCTime(d.substring(2));
}
}
public static Time getInstance(
Object obj)
{
if (obj instanceof Time)
{
return (Time)obj;
}
else if (obj instanceof DERUTCTime)
{
return new Time((DERUTCTime)obj);
}
else if (obj instanceof DERGeneralizedTime)
{
return new Time((DERGeneralizedTime)obj);
}
throw new IllegalArgumentException("unknown object in factory");
}
public String getTime()
{
if (time instanceof DERUTCTime)
{
return ((DERUTCTime)time).getAdjustedTime();
}
else
{
return ((DERGeneralizedTime)time).getTime();
}
}
public Date getDate()
{
try
{
if (time instanceof DERUTCTime)
{
return ((DERUTCTime)time).getAdjustedDate();
}
else
{
return ((DERGeneralizedTime)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 DERObject toASN1Object()
{
return time;
}
public String toString()
{
return getTime();
}
}