/// <summary>
/// Deserializes BSON document from stream containing BSON-encoded data
/// </summary>
public BSONDocument(Stream stream)
{
if (stream == null)
{
throw new BSONException(StringConsts.ARGUMENT_ERROR + "BSONDocument.ctor(stream==null)");
}
long start = stream.Position;
var totalSize = BinUtils.ReadInt32(stream);
long read = 4;
while (read < totalSize - 1)
{
var et = BinUtils.ReadElementType(stream);
var factory = BSONElement.GetElementFactory(et);
var element = factory(stream);//element made
Set(element);
read = stream.Position - start;
}
var terminator = BinUtils.ReadByte(stream);
if (terminator != BinUtils.TERMINATOR || stream.Position - start != totalSize)
{
throw new BSONException(StringConsts.BSON_EOD_ERROR);
}
}
/// <summary>
/// Reads BSON cstring from stream
/// </summary>
public static string ReadCString(Stream stream, int length)
{
if (length == 0)
{
return(string.Empty);
}
if (length < 0)
{
throw new BSONException(StringConsts.BSON_INCORRECT_STRING_LENGTH_ERROR.Args(length));
}
var buffer = new byte[length - 1];
stream.Read(buffer, 0, length - 1);
var terminator = BinUtils.ReadByte(stream);
if (terminator != TERMINATOR)
{
throw new BSONException(StringConsts.BSON_UNEXPECTED_END_OF_STRING_ERROR);
}
return(s_UTF8Encoding.GetString(buffer, 0, length - 1));
}
protected override void ReadValueFromStream(Stream stream)
{
var elements = new List <BSONElement>();
long start = stream.Position;
var totalSize = BinUtils.ReadInt32(stream);
long read = 4;
while (read < totalSize - 1)
{
var et = BinUtils.ReadElementType(stream);
var factory = BSONElement.GetElementFactory(et);
var element = factory(stream);//element made
element.MarkAsArrayItem();
elements.Add(element);
read = stream.Position - start;
}
Value = elements.ToArray();
var terminator = BinUtils.ReadByte(stream);
if (terminator != BinUtils.TERMINATOR || stream.Position - start != totalSize)
{
throw new BSONException(StringConsts.BSON_EOD_ERROR);
}
}
protected override void ReadValueFromStream(Stream stream)
{
var length = BinUtils.ReadInt32(stream);
var type = BinUtils.ReadByte(stream);
var buffer = new byte[length];
stream.Read(buffer, 0, length);
Value = new BSONBinary((BSONBinaryType)type, buffer);
}
protected override void ReadValueFromStream(Stream stream)
{
var flag = BinUtils.ReadByte(stream);
switch (flag)
{
case (byte)BSONBoolean.True:
Value = true; break;
case (byte)BSONBoolean.False:
Value = false; break;
default:
throw new BSONException(StringConsts.BSON_READ_BOOLEAN_ERROR.Args(flag));
}
}
