using System.IO;
using GeoAPI.Geometries;

namespace GisSharpBlog.NetTopologySuite.IO
{
    public class MsSqlSpatialReader : WKBReader
    {
        public override IGeometry Read(Stream stream)
        {
            BinaryReader reader = null;
            ByteOrder byteOrder = (ByteOrder) stream.ReadByte();
            try
            {
                if (byteOrder == ByteOrder.BigEndian)
                {
                    reader = new BEBinaryReader(stream);
                }
                else
                {
                    reader = new BinaryReader(stream);
                }
                IGeometry geometry = Read(reader);
                int srid = -1;
                try
                {
                    srid = reader.ReadInt32();
                }
                catch {}
                if (srid == 0)
                {
                    srid = -1;
                }
                geometry.SRID = srid;
                return geometry;
            }
            finally
            {
                if (reader != null)
                {
                    reader.Close();
                }
            }
        }
    }
}