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using System;
namespace Org.BouncyCastle.Asn1.X500
{
/// <summary>Holding class for a single Relative Distinguished Name (RDN).</summary>
public class Rdn
: Asn1Encodable
{
public static Rdn GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is Rdn rdn)
return rdn;
return new Rdn(Asn1Set.GetInstance(obj));
}
public static Rdn GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
new Rdn(Asn1Set.GetInstance(taggedObject, declaredExplicit));
private readonly Asn1Set m_values;
private Rdn(Asn1Set values)
{
// TODO Require minimum size of 1?
m_values = values;
}
/**
* Create a single valued RDN.
*
* @param oid RDN type.
* @param value RDN value.
*/
public Rdn(DerObjectIdentifier oid, Asn1Encodable value)
: this(new AttributeTypeAndValue(oid, value))
{
}
public Rdn(AttributeTypeAndValue attrTAndV)
{
m_values = new DerSet(attrTAndV);
}
/**
* Create a multi-valued RDN.
*
* @param aAndVs attribute type/value pairs making up the RDN
*/
public Rdn(AttributeTypeAndValue[] aAndVs)
{
m_values = new DerSet(aAndVs);
}
public virtual bool IsMultiValued => m_values.Count > 1;
/**
* Return the number of AttributeTypeAndValue objects in this RDN,
*
* @return size of RDN, greater than 1 if multi-valued.
*/
public virtual int Count => m_values.Count;
public virtual AttributeTypeAndValue GetFirst() =>
m_values.Count == 0 ? null : AttributeTypeAndValue.GetInstance(m_values[0]);
public virtual AttributeTypeAndValue[] GetTypesAndValues() =>
m_values.MapElements(AttributeTypeAndValue.GetInstance);
/**
* <pre>
* RelativeDistinguishedName ::=
* SET OF AttributeTypeAndValue
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
* </pre>
* @return this object as its ASN1Primitive type
*/
public override Asn1Object ToAsn1Object() => m_values;
}
}
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