public Guid AddDocument(string key, Guid?etag, JObject data, JObject metadata)
{
var docPos = Mutator.Documents.FindValue(key);
EnsureNotLockedByAnotherTransaction(key, Guid.Empty);
if (docPos == null)
{
var max = Mutator.DocumentsById.GetRightMost();
var current = max.Type == JTokenType.Null ? 0 : max.Value <int>();
var docId = current + 1;
metadata["@docId"] = new JValue(docId);
var docKeyPos = Writer.Position;
BinaryWriter.Write(key);
Mutator.DocumentsById.Add(docId, docKeyPos);
Mutator.IncrementDocumentCount();
}
else
{
var oldEtag = EnsureValidEtag(docPos.Value, etag);
Mutator.DocumentsByEtag.Remove(oldEtag);
}
var newEtag = DocumentDatabase.CreateSequentialUuid();
long position = WriteDocument(key, metadata, newEtag, data);
Mutator.Documents.Add(key, position);
Mutator.DocumentsByEtag.Add(newEtag.ToByteArray(), position);
return(newEtag);
}