content: package local.org.bouncycastle.asn1.x509;
  
  import local.org.bouncycastle.asn1.ASN1Choice;
  import local.org.bouncycastle.asn1.ASN1Encodable;
  import local.org.bouncycastle.asn1.ASN1Object;
  import local.org.bouncycastle.asn1.ASN1Primitive;
  import local.org.bouncycastle.asn1.ASN1Sequence;
  import local.org.bouncycastle.asn1.ASN1TaggedObject;
  import local.org.bouncycastle.asn1.DERTaggedObject;
  
  public class AttCertIssuer
      extends ASN1Object
      implements ASN1Choice
  {
      ASN1Encodable   obj;
      ASN1Primitive choiceObj;
      
      public static AttCertIssuer getInstance(
          Object  obj)
      {
          if (obj == null || obj instanceof AttCertIssuer)
          {
              return (AttCertIssuer)obj;
          }
          else if (obj instanceof V2Form)
          {
              return new AttCertIssuer(V2Form.getInstance(obj));
          }
          else if (obj instanceof GeneralNames)
          {
              return new AttCertIssuer((GeneralNames)obj);
          }
          else if (obj instanceof ASN1TaggedObject)
          {
              return new AttCertIssuer(V2Form.getInstance((ASN1TaggedObject)obj, false));
          }
          else if (obj instanceof ASN1Sequence)
          {
              return new AttCertIssuer(GeneralNames.getInstance(obj));
          }
  
          throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName());
      }
      
      public static AttCertIssuer getInstance(
          ASN1TaggedObject obj,
          boolean          explicit)
      {
          return getInstance(obj.getObject()); // must be explicitly tagged
      }
  
      /**
       * Don't use this one if you are trying to be RFC 3281 compliant.
       * Use it for v1 attribute certificates only.
       * 
       * @param names our GeneralNames structure
       */
      public AttCertIssuer(
          GeneralNames  names)
      {
          obj = names;
          choiceObj = obj.toASN1Primitive();
      }
      
      public AttCertIssuer(
          V2Form  v2Form)
      {
          obj = v2Form;
          choiceObj = new DERTaggedObject(false, 0, obj);
      }
  
      public ASN1Encodable getIssuer()
      {
          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 ASN1Primitive toASN1Primitive()
      {
          return choiceObj;
      }
  }
  