Initial Commit

iTechSharp/srcbc/asn1/isismtt/x509/MonetaryLimit.cs

@@ -0,0 +1,122 @@
+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<6E>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<6E>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);
+		}
+
+	}
+}