public static void CopyToBson(string inputPath, string outputPath, FileMode fileMode = FileMode.CreateNew)
{
using (var textReader = File.OpenText(inputPath))
using (var jsonReader = new JsonTextReader(textReader))
using (var oFileStream = new FileStream(outputPath, fileMode))
using (var dataWriter = new BsonDataWriter(oFileStream))
{
dataWriter.WriteToken(jsonReader);
}
}
public static void CopyToBson(JsonReader jsonReader, Stream stream)
{
var rootTokenType = jsonReader.ReadToContentAndAssert().TokenType;
if (!stream.CanSeek || rootTokenType != JsonToken.StartArray)
{
using (var dataWriter = new BsonDataWriter(stream)
{
CloseOutput = false
})
{
dataWriter.WriteToken(jsonReader, stream.CanSeek);
}
}
else
{
stream.Flush(); // Just in case.
var initialPosition = stream.Position;
var buffer = new byte[256];
WriteInt(stream, 0, buffer); // CALCULATED SIZE TO BE CALCULATED LATER.
ulong index = 0;
while (jsonReader.ReadToContentAndAssert().TokenType != JsonToken.EndArray)
{
var bsonType = GetBsonType(jsonReader.TokenType, jsonReader.ValueType);
stream.WriteByte(unchecked ((byte)bsonType));
WriteString(stream, index.ToString(NumberFormatInfo.InvariantInfo), buffer);
using (var dataWriter = new BsonDataWriter(stream)
{
CloseOutput = false
})
{
dataWriter.WriteToken(jsonReader);
}
index++;
}
stream.WriteByte((byte)0);
stream.Flush();
var finalPosition = stream.Position;
stream.Position = initialPosition;
var size = checked ((int)(finalPosition - initialPosition));
WriteInt(stream, size, buffer); // CALCULATED SIZE TO BE CALCULATED LATER.
stream.Position = finalPosition;
}
}