DerSequence
using Org.BouncyCastle.Utilities.Collections;
using System;
using System.Collections.Generic;
namespace Org.BouncyCastle.Asn1
{
public class DerSequence : Asn1Sequence
{
public static readonly DerSequence Empty = new DerSequence();
public static DerSequence Concatenate(params Asn1Sequence[] sequences)
{
if (sequences != null) {
switch (sequences.LongLength) {
case 0:
return Empty;
case 1:
return FromSequence(sequences[0]);
default:
return WithElements(Asn1Sequence.ConcatenateElements(sequences));
}
}
return Empty;
}
public static DerSequence FromCollection(IReadOnlyCollection<Asn1Encodable> elements)
{
if (elements.Count >= 1)
return new DerSequence(elements);
return Empty;
}
public static DerSequence FromElement(Asn1Encodable element)
{
return new DerSequence(element);
}
public static DerSequence FromElements(Asn1Encodable element1, Asn1Encodable element2)
{
return new DerSequence(element1, element2);
}
public static DerSequence FromElements(Asn1Encodable[] elements)
{
if (elements == null)
throw new ArgumentNullException("elements");
if (elements.Length >= 1)
return new DerSequence(elements);
return Empty;
}
public static DerSequence FromElementsOptional(Asn1Encodable[] elements)
{
if (elements == null)
return null;
if (elements.Length >= 1)
return new DerSequence(elements);
return Empty;
}
public static DerSequence FromSequence(Asn1Sequence sequence)
{
DerSequence derSequence = sequence as DerSequence;
if (derSequence != null)
return derSequence;
return WithElements(sequence.m_elements);
}
public static DerSequence FromVector(Asn1EncodableVector elementVector)
{
if (elementVector.Count >= 1)
return new DerSequence(elementVector);
return Empty;
}
public static DerSequence Map(Asn1Sequence sequence, Func<Asn1Encodable, Asn1Encodable> func)
{
if (sequence.Count >= 1)
return new DerSequence(sequence.MapElements(func), false);
return Empty;
}
public static DerSequence Map<T>(T[] ts, Func<T, Asn1Encodable> func)
{
if (ts.Length >= 1)
return new DerSequence(CollectionUtilities.Map(ts, func), false);
return Empty;
}
public static DerSequence Map<T>(IReadOnlyCollection<T> c, Func<T, Asn1Encodable> func)
{
if (c.Count >= 1)
return new DerSequence(CollectionUtilities.Map(c, func), false);
return Empty;
}
internal static DerSequence WithElements(Asn1Encodable[] elements)
{
if (elements.Length >= 1)
return new DerSequence(elements, false);
return Empty;
}
public DerSequence()
{
}
public DerSequence(Asn1Encodable element)
: base(element)
{
}
public DerSequence(Asn1Encodable element1, Asn1Encodable element2)
: base(element1, element2)
{
}
public DerSequence(params Asn1Encodable[] elements)
: base(elements)
{
}
public DerSequence(Asn1EncodableVector elementVector)
: base(elementVector)
{
}
public DerSequence(IReadOnlyCollection<Asn1Encodable> elements)
: base(elements)
{
}
internal DerSequence(Asn1Encodable[] elements, bool clone)
: base(elements, clone)
{
}
internal override IAsn1Encoding GetEncoding(int encoding)
{
return new ConstructedDLEncoding(0, 16, Asn1OutputStream.GetContentsEncodings(3, m_elements));
}
internal override IAsn1Encoding GetEncodingImplicit(int encoding, int tagClass, int tagNo)
{
return new ConstructedDLEncoding(tagClass, tagNo, Asn1OutputStream.GetContentsEncodings(3, m_elements));
}
internal sealed override DerEncoding GetEncodingDer()
{
return new ConstructedDerEncoding(0, 16, Asn1OutputStream.GetContentsEncodingsDer(m_elements));
}
internal sealed override DerEncoding GetEncodingDerImplicit(int tagClass, int tagNo)
{
return new ConstructedDerEncoding(tagClass, tagNo, Asn1OutputStream.GetContentsEncodingsDer(m_elements));
}
internal override DerBitString ToAsn1BitString()
{
return new DerBitString(BerBitString.FlattenBitStrings(GetConstructedBitStrings()), false);
}
internal override DerExternal ToAsn1External()
{
return new DerExternal(this);
}
internal override Asn1OctetString ToAsn1OctetString()
{
return DerOctetString.WithContents(BerOctetString.FlattenOctetStrings(GetConstructedOctetStrings()));
}
internal override Asn1Set ToAsn1Set()
{
return new DLSet(false, m_elements);
}
internal static int GetEncodingLength(int contentsLength)
{
return Asn1OutputStream.GetLengthOfEncodingDL(16, contentsLength);
}
}
}