AttCertIssuer.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » X509 » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1;

namespace Org.BouncyCastle.Asn1.X509{
    public class AttCertIssuer
        : Asn1Encodable, IAsn1Choice
    {
        internal readonly Asn1Encodable  obj;
        internal readonly Asn1Object  choiceObj;

    public static AttCertIssuer GetInstance(
      object obj)
    {
      if (obj is AttCertIssuer)
      {
        return (AttCertIssuer)obj;
      }
      else if (obj is V2Form)
      {
        return new AttCertIssuer(V2Form.GetInstance(obj));
      }
      else if (obj is GeneralNames)
      {
        return new AttCertIssuer((GeneralNames)obj);
      }
      else if (obj is Asn1TaggedObject)
      {
        return new AttCertIssuer(V2Form.GetInstance((Asn1TaggedObject)obj, false));
      }
      else if (obj is Asn1Sequence)
      {
        return new AttCertIssuer(GeneralNames.GetInstance(obj));
      }

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

    public static AttCertIssuer GetInstance(
      Asn1TaggedObject  obj,
      bool        isExplicit)
    {
      return GetInstance(obj.GetObject()); // must be explictly tagged
    }

    /// <summary>
    /// Don't use this one if you are trying to be RFC 3281 compliant.
    /// Use it for v1 attribute certificates only.
    /// </summary>
    /// <param name="names">Our GeneralNames structure</param>
    public AttCertIssuer(
      GeneralNames names)
    {
      obj = names;
      choiceObj = obj.ToAsn1Object();
    }

    public AttCertIssuer(
            V2Form v2Form)
        {
            obj = v2Form;
            choiceObj = new DerTaggedObject(false, 0, obj);
        }

    public Asn1Encodable Issuer
    {
      get { return obj; }
    }

    /**
         * Produce an object suitable for an Asn1OutputStream.
         * <pre>
         *  AttCertIssuer ::= CHOICE {
         *       v1Form   GeneralNames,  -- MUST NOT be used in this
         *                               -- profile
         *       v2Form   [0] V2Form     -- v2 only
         *  }
         * </pre>
         */
        public override Asn1Object ToAsn1Object()
        {
            return choiceObj;
        }
    }
}