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

using System;
using System.Collections;

namespace Org.BouncyCastle.Asn1.X509{
  /**
   * <code>NoticeReference</code> class, used in
   * <code>CertificatePolicies</code> X509 V3 extensions
   * (in policy qualifiers).
   *
   * <pre>
   *  NoticeReference ::= Sequence {
   *      organization     DisplayText,
   *      noticeNumbers    Sequence OF Integer }
   *
   * </pre>
   *
   * @see PolicyQualifierInfo
   * @see PolicyInformation
   */
  public class NoticeReference
    : Asn1Encodable
  {
    internal readonly DisplayText organization;
    internal readonly Asn1Sequence noticeNumbers;

    /**
    * Creates a new <code>NoticeReference</code> instance.
    *
    * @param orgName a <code>string</code> value
    * @param numbers a <code>ArrayList</code> value
    */
    public NoticeReference(
      string    orgName,
      ArrayList  numbers)
    {
      organization = new DisplayText(orgName);

      object o = numbers[0];

      Asn1EncodableVector av = new Asn1EncodableVector();
      if (o is int)
      {
        foreach (int nm in numbers)
        {
          av.Add(new DerInteger(nm));
        }
      }

      noticeNumbers = new DerSequence(av);
    }

    /**
     * Creates a new <code>NoticeReference</code> instance.
     *
     * @param orgName a <code>string</code> value
     * @param numbers an <code>Asn1Sequence</code> value
     */
    public NoticeReference(
      string      orgName,
      Asn1Sequence  numbers)
    {
      organization = new DisplayText(orgName);
      noticeNumbers = numbers;
    }

    /**
     * Creates a new <code>NoticeReference</code> instance.
     *
     * @param displayTextType an <code>int</code> value
     * @param orgName a <code>string</code> value
     * @param numbers an <code>Asn1Sequence</code> value
     */
    public NoticeReference(
      int        displayTextType,
      string      orgName,
      Asn1Sequence  numbers)
    {
      organization = new DisplayText(displayTextType, orgName);
      noticeNumbers = numbers;
    }

    /**
     * Creates a new <code>NoticeReference</code> instance.
     * <p>Useful for reconstructing a <code>NoticeReference</code>
     * instance from its encodable/encoded form.</p>
     *
     * @param as an <code>Asn1Sequence</code> value obtained from either
     * calling @{link ToAsn1Object()} for a <code>NoticeReference</code>
     * instance or from parsing it from a Der-encoded stream.
     */
    private NoticeReference(
      Asn1Sequence seq)
    {
      if (seq.Count != 2)
        throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");

      organization = DisplayText.GetInstance(seq[0]);
      noticeNumbers = Asn1Sequence.GetInstance(seq[1]);
    }

    public static NoticeReference GetInstance(
      object obj)
    {
      if (obj is NoticeReference)
      {
        return (NoticeReference) obj;
      }

      if (obj is Asn1Sequence)
      {
        return new NoticeReference((Asn1Sequence) obj);
      }

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

    /**
     * Describe <code>ToAsn1Object</code> method here.
     *
     * @return a <code>Asn1Object</code> value
     */
    public override Asn1Object ToAsn1Object()
    {
      return new DerSequence(organization, noticeNumbers);
    }
  }
}