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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Esf
{
/**
* Commitment type qualifiers, used in the Commitment-Type-Indication attribute (RFC3126).
*
* <pre>
* CommitmentTypeQualifier ::= SEQUENCE {
* commitmentTypeIdentifier CommitmentTypeIdentifier,
* qualifier ANY DEFINED BY commitmentTypeIdentifier OPTIONAL }
* </pre>
*/
public class CommitmentTypeQualifier
: Asn1Encodable
{
private readonly DerObjectIdentifier commitmentTypeIdentifier;
private readonly Asn1Object qualifier;
/**
* Creates a new <code>CommitmentTypeQualifier</code> instance.
*
* @param commitmentTypeIdentifier a <code>CommitmentTypeIdentifier</code> value
*/
public CommitmentTypeQualifier(
DerObjectIdentifier commitmentTypeIdentifier)
: this(commitmentTypeIdentifier, null)
{
}
/**
* Creates a new <code>CommitmentTypeQualifier</code> instance.
*
* @param commitmentTypeIdentifier a <code>CommitmentTypeIdentifier</code> value
* @param qualifier the qualifier, defined by the above field.
*/
public CommitmentTypeQualifier(
DerObjectIdentifier commitmentTypeIdentifier,
Asn1Encodable qualifier)
{
if (commitmentTypeIdentifier == null)
throw new ArgumentNullException("commitmentTypeIdentifier");
this.commitmentTypeIdentifier = commitmentTypeIdentifier;
if (qualifier != null)
{
this.qualifier = qualifier.ToAsn1Object();
}
}
/**
* Creates a new <code>CommitmentTypeQualifier</code> instance.
*
* @param as <code>CommitmentTypeQualifier</code> structure
* encoded as an Asn1Sequence.
*/
public CommitmentTypeQualifier(
Asn1Sequence seq)
{
if (seq == null)
throw new ArgumentNullException("seq");
if (seq.Count < 1 || seq.Count > 2)
throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
commitmentTypeIdentifier = (DerObjectIdentifier) seq[0].ToAsn1Object();
if (seq.Count > 1)
{
qualifier = seq[1].ToAsn1Object();
}
}
public static CommitmentTypeQualifier GetInstance(
object obj)
{
if (obj == null || obj is CommitmentTypeQualifier)
return (CommitmentTypeQualifier) obj;
if (obj is Asn1Sequence)
return new CommitmentTypeQualifier((Asn1Sequence) obj);
throw new ArgumentException(
"Unknown object in 'CommitmentTypeQualifier' factory: "
+ Platform.GetTypeName(obj),
"obj");
}
public DerObjectIdentifier CommitmentTypeIdentifier
{
get { return commitmentTypeIdentifier; }
}
public Asn1Object Qualifier
{
get { return qualifier; }
}
/**
* Returns a DER-encodable representation of this instance.
*
* @return a <code>Asn1Object</code> value
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(commitmentTypeIdentifier);
v.AddOptional(qualifier);
return new DerSequence(v);
}
}
}
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