GeneralSubtree
using Org.BouncyCastle.Math;
using System;
namespace Org.BouncyCastle.Asn1.X509
{
public class GeneralSubtree : Asn1Encodable
{
private readonly GeneralName m_baseName;
private readonly DerInteger m_minimum;
private readonly DerInteger m_maximum;
public GeneralName Base => m_baseName;
public BigInteger Minimum => m_minimum.Value;
public BigInteger Maximum => m_maximum?.Value;
public static GeneralSubtree GetInstance(object obj)
{
if (obj == null)
return null;
GeneralSubtree generalSubtree = obj as GeneralSubtree;
if (generalSubtree != null)
return generalSubtree;
return new GeneralSubtree(Asn1Sequence.GetInstance(obj));
}
public static GeneralSubtree GetInstance(Asn1TaggedObject o, bool isExplicit)
{
return new GeneralSubtree(Asn1Sequence.GetInstance(o, isExplicit));
}
public static GeneralSubtree GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new GeneralSubtree(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
}
private GeneralSubtree(Asn1Sequence seq)
{
int count = seq.Count;
int sequencePosition = 0;
if (count < 1 || count > 3)
throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq");
m_baseName = GeneralName.GetInstance(seq[sequencePosition++]);
m_minimum = (Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 0, false, DerInteger.GetTagged) ?? DerInteger.Zero);
m_maximum = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 1, false, DerInteger.GetTagged);
if (sequencePosition != count)
throw new ArgumentException("Unexpected elements in sequence", "seq");
}
public GeneralSubtree(GeneralName baseName)
: this(baseName, null, null)
{
}
public GeneralSubtree(GeneralName baseName, BigInteger minimum, BigInteger maximum)
{
if (baseName == null)
throw new ArgumentNullException("baseName");
m_baseName = baseName;
m_minimum = ((minimum == null) ? DerInteger.Zero : new DerInteger(minimum));
m_maximum = ((maximum == null) ? null : new DerInteger(maximum));
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(3);
asn1EncodableVector.Add(m_baseName);
if (!m_minimum.HasValue(0))
asn1EncodableVector.Add(new DerTaggedObject(false, 0, m_minimum));
asn1EncodableVector.AddOptionalTagged(false, 1, m_maximum);
return new DerSequence(asn1EncodableVector);
}
}
}