SigPolicyQualifierInfo.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Esf » C# / CSharp Open Source

using System;

namespace Org.BouncyCastle.Asn1.Esf{
  /// <remarks>
  /// <code>
  /// SigPolicyQualifierInfo ::= SEQUENCE {
    ///    sigPolicyQualifierId  SigPolicyQualifierId,
  ///    sigQualifier          ANY DEFINED BY sigPolicyQualifierId
  /// }
  /// 
  /// SigPolicyQualifierId ::= OBJECT IDENTIFIER
  /// </code>
  /// </remarks>
  public class SigPolicyQualifierInfo
    : Asn1Encodable
  {
    private readonly DerObjectIdentifier  sigPolicyQualifierId;
    private readonly Asn1Object        sigQualifier;

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

      if (obj is Asn1Sequence)
        return new SigPolicyQualifierInfo((Asn1Sequence) obj);

      throw new ArgumentException(
        "Unknown object in 'SigPolicyQualifierInfo' factory: "
          + obj.GetType().Name,
        "obj");
    }

    private SigPolicyQualifierInfo(
      Asn1Sequence seq)
    {
      if (seq == null)
        throw new ArgumentNullException("seq");
      if (seq.Count != 2)
        throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");

      this.sigPolicyQualifierId = (DerObjectIdentifier) seq[0].ToAsn1Object();
      this.sigQualifier = seq[1].ToAsn1Object();
    }

    public SigPolicyQualifierInfo(
      DerObjectIdentifier  sigPolicyQualifierId,
      Asn1Encodable    sigQualifier)
    {
      this.sigPolicyQualifierId = sigPolicyQualifierId;
      this.sigQualifier = sigQualifier.ToAsn1Object();
    }

    public DerObjectIdentifier SigPolicyQualifierId
    {
      get { return sigPolicyQualifierId; }
    }

    public Asn1Object SigQualifier
    {
      get { return sigQualifier; }
    }

    public override Asn1Object ToAsn1Object()
    {
      return new DerSequence(sigPolicyQualifierId, sigQualifier);
    }
  }
}