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using System;
using System.IO;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1
{
internal class DLSet
: DerSet
{
internal static new readonly DLSet Empty = new DLSet();
internal static new DLSet FromVector(Asn1EncodableVector elementVector)
{
return elementVector.Count < 1 ? Empty : new DLSet(elementVector);
}
/**
* create an empty set
*/
internal DLSet()
: base()
{
}
/**
* create a set containing one object
*/
internal DLSet(Asn1Encodable element)
: base(element)
{
}
internal DLSet(params Asn1Encodable[] elements)
: base(elements, false)
{
}
/**
* create a set containing a vector of objects.
*/
internal DLSet(Asn1EncodableVector elementVector)
: base(elementVector, false)
{
}
internal DLSet(bool isSorted, Asn1Encodable[] elements)
: base(isSorted, elements)
{
}
internal override int EncodedLength(bool withID)
{
throw Platform.CreateNotImplementedException("DLSet.EncodedLength");
}
internal override void Encode(Asn1OutputStream asn1Out, bool withID)
{
if (asn1Out.IsDer)
{
base.Encode(asn1Out, withID);
return;
}
if (Count < 1)
{
asn1Out.WriteEncodingDL(withID, Asn1Tags.Constructed | Asn1Tags.Set, Asn1OctetString.EmptyOctets);
return;
}
// TODO Intermediate buffer could be avoided if we could calculate expected length
MemoryStream bOut = new MemoryStream();
// TODO Once DLOutputStream exists, this should create one
Asn1OutputStream dOut = Asn1OutputStream.Create(bOut);
dOut.WriteElements(elements);
dOut.FlushInternal();
#if PORTABLE
byte[] bytes = bOut.ToArray();
int length = bytes.Length;
#else
byte[] bytes = bOut.GetBuffer();
int length = (int)bOut.Position;
#endif
asn1Out.WriteEncodingDL(withID, Asn1Tags.Constructed | Asn1Tags.Set, bytes, 0, length);
Platform.Dispose(dOut);
}
}
}
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