using System;
using System.IO;

using Org.BouncyCastle.Utilities.IO;

namespace Org.BouncyCastle.Asn1
{
    public class BerOctetStringParser
        : Asn1OctetStringParser
    {
        private readonly Asn1StreamParser _parser;

        internal BerOctetStringParser(Asn1StreamParser parser)
        {
            _parser = parser;
        }

        public Stream GetOctetStream()
        {
            return new ConstructedOctetStream(_parser);
        }

        public Asn1Object ToAsn1Object()
        {
            try
            {
                return Parse(_parser);
            }
            catch (IOException e)
            {
                throw new Asn1ParsingException("IOException converting stream to byte array: " + e.Message, e);
            }
        }

        internal static BerOctetString Parse(Asn1StreamParser sp)
        {
            return new BerOctetString(Streams.ReadAll(new ConstructedOctetStream(sp)));
        }
    }
}