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path: root/crypto/src/asn1/x509/qualified/QCStatement.cs
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using System;
using System.Collections;

using Org.BouncyCastle.Asn1;

namespace Org.BouncyCastle.Asn1.X509.Qualified
{
    /**
    * The QCStatement object.
    * <pre>
    * QCStatement ::= SEQUENCE {
    *   statementId        OBJECT IDENTIFIER,
    *   statementInfo      ANY DEFINED BY statementId OPTIONAL}
    * </pre>
    */
    public class QCStatement
        : Asn1Encodable
    {
        private readonly DerObjectIdentifier	qcStatementId;
        private readonly Asn1Encodable			qcStatementInfo;

		public static QCStatement GetInstance(
            object obj)
        {
            if (obj == null || obj is QCStatement)
            {
                return (QCStatement) obj;
            }

			if (obj is Asn1Sequence)
            {
				return new QCStatement(Asn1Sequence.GetInstance(obj));
            }

			throw new ArgumentException("unknown object in GetInstance: " + obj.GetType().FullName, "obj");
		}

		private QCStatement(
            Asn1Sequence seq)
        {
			qcStatementId = DerObjectIdentifier.GetInstance(seq[0]);

			if (seq.Count > 1)
			{
				qcStatementInfo = seq[1];
			}
        }

		public QCStatement(
            DerObjectIdentifier qcStatementId)
        {
            this.qcStatementId = qcStatementId;
        }

        public QCStatement(
            DerObjectIdentifier qcStatementId,
            Asn1Encodable       qcStatementInfo)
        {
            this.qcStatementId = qcStatementId;
            this.qcStatementInfo = qcStatementInfo;
        }

		public DerObjectIdentifier StatementId
		{
			get { return qcStatementId; }
		}

		public Asn1Encodable StatementInfo
		{
			get { return qcStatementInfo; }
		}

		public override Asn1Object ToAsn1Object()
        {
            Asn1EncodableVector seq = new Asn1EncodableVector(qcStatementId);

			if (qcStatementInfo != null)
            {
                seq.Add(qcStatementInfo);
            }

			return new DerSequence(seq);
        }
    }
}