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

using System;
using System.Collections;

using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities.Collections;

namespace Org.BouncyCastle.Asn1.Esf{
  /// <remarks>
  /// RFC 3126: 4.3.1 Certificate Values Attribute Definition
  /// <code>
  /// CertificateValues ::= SEQUENCE OF Certificate
  /// </code>
  /// </remarks>
  public class CertificateValues
    : Asn1Encodable
  {
    private readonly Asn1Sequence certificates;

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

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

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

    private CertificateValues(
      Asn1Sequence seq)
    {
      if (seq == null)
        throw new ArgumentNullException("seq");

      foreach (Asn1Encodable ae in seq)
      {
        X509CertificateStructure.GetInstance(ae.ToAsn1Object());
      }

      this.certificates = seq;
    }

    public CertificateValues(
      params X509CertificateStructure[] certificates)
    {
      if (certificates == null)
        throw new ArgumentNullException("certificates");

      this.certificates = new DerSequence(certificates);
    }

    public CertificateValues(
      IEnumerable certificates)
    {
      if (certificates == null)
        throw new ArgumentNullException("certificates");
      if (!CollectionUtilities.CheckElementsAreOfType(certificates, typeof(X509CertificateStructure)))
        throw new ArgumentException("Must contain only 'X509CertificateStructure' objects", "certificates");

      this.certificates = new DerSequence(
        Asn1EncodableVector.FromEnumerable(certificates));
    }

    public X509CertificateStructure[] GetCertificates()
    {
      X509CertificateStructure[] result = new X509CertificateStructure[certificates.Count];
      for (int i = 0; i < certificates.Count; ++i)
      {
        result[i] = X509CertificateStructure.GetInstance(certificates[i]);
      }
      return result;
    }

    public override Asn1Object ToAsn1Object()
    {
      return certificates;
    }
   }
}