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using System;
using Org.BouncyCastle.Math;
namespace Org.BouncyCastle.Asn1.IsisMtt.X509
{
/**
* Monetary limit for transactions. The QcEuMonetaryLimit QC statement MUST be
* used in new certificates in place of the extension/attribute MonetaryLimit
* since January 1, 2004. For the sake of backward compatibility with
* certificates already in use, components SHOULD support MonetaryLimit (as well
* as QcEuLimitValue).
* <p/>
* Indicates a monetary limit within which the certificate holder is authorized
* to act. (This value DOES NOT express a limit on the liability of the
* certification authority).
* <p/>
* <pre>
* MonetaryLimitSyntax ::= SEQUENCE
* {
* currency PrintableString (SIZE(3)),
* amount INTEGER,
* exponent INTEGER
* }
* </pre>
* <p/>
* currency must be the ISO code.
* <p/>
* value = amount�10*exponent
*/
public class MonetaryLimit
: Asn1Encodable
{
private readonly DerPrintableString currency;
private readonly DerInteger amount;
private readonly DerInteger exponent;
public static MonetaryLimit GetInstance(
object obj)
{
if (obj == null || obj is MonetaryLimit)
{
return (MonetaryLimit) obj;
}
if (obj is Asn1Sequence)
{
return new MonetaryLimit(Asn1Sequence.GetInstance(obj));
}
throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
}
private MonetaryLimit(
Asn1Sequence seq)
{
if (seq.Count != 3)
throw new ArgumentException("Bad sequence size: " + seq.Count);
currency = DerPrintableString.GetInstance(seq[0]);
amount = DerInteger.GetInstance(seq[1]);
exponent = DerInteger.GetInstance(seq[2]);
}
/**
* Constructor from a given details.
* <p/>
* <p/>
* value = amount�10^exponent
*
* @param currency The currency. Must be the ISO code.
* @param amount The amount
* @param exponent The exponent
*/
public MonetaryLimit(
string currency,
int amount,
int exponent)
{
this.currency = new DerPrintableString(currency, true);
this.amount = new DerInteger(amount);
this.exponent = new DerInteger(exponent);
}
public virtual string Currency
{
get { return currency.GetString(); }
}
public virtual BigInteger Amount
{
get { return amount.Value; }
}
public virtual BigInteger Exponent
{
get { return exponent.Value; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <p/>
* Returns:
* <p/>
* <pre>
* MonetaryLimitSyntax ::= SEQUENCE
* {
* currency PrintableString (SIZE(3)),
* amount INTEGER,
* exponent INTEGER
* }
* </pre>
*
* @return an Asn1Object
*/
public override Asn1Object ToAsn1Object()
{
return new DerSequence(currency, amount, exponent);
}
}
}
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