private void SaveResolvedDocument([NotNull] Document resolved, [NotNull] Conflict conflict)
{
InBatch(() =>
{
var doc = conflict.Mine;
var otherDoc = conflict.Theirs;
// Figure out what revision to delete and what if anything to add
string winningRevID, losingRevID;
byte[] mergedBody = null;
if (ReferenceEquals(resolved, otherDoc))
{
winningRevID = otherDoc.RevID;
losingRevID = doc.RevID;
}
else
{
winningRevID = doc.RevID;
losingRevID = otherDoc.RevID;
if (!ReferenceEquals(resolved, doc))
{
resolved.Database = this;
mergedBody = resolved.Encode();
}
}
// Tell LiteCore to do the resolution:
var rawDoc = doc.c4Doc?.HasValue == true ? doc.c4Doc.RawDoc : null;
LiteCoreBridge.Check(err =>
Native.c4doc_resolveConflict(rawDoc, winningRevID, losingRevID, mergedBody, err));
LiteCoreBridge.Check(err => Native.c4doc_save(rawDoc, 0, err));
var logID = new SecureLogString(doc.Id, LogMessageSensitivity.PotentiallyInsecure);
Log.To.Database.I(Tag, $"Conflict resolved as doc '{logID}' rev {rawDoc->revID.CreateString()}");
});
}
private void Save([NotNull] Document doc, C4Document **outDoc, C4Document *baseDoc, bool deletion)
{
var revFlags = (C4RevisionFlags)0;
if (deletion)
{
revFlags = C4RevisionFlags.Deleted;
}
byte[] body = null;
if (!deletion && !doc.IsEmpty)
{
body = doc.Encode();
var root = Native.FLValue_FromTrustedData(body);
if (root == null)
{
Log.To.Database.E(Tag, "Failed to encode document body properly. Aborting save of document!");
return;
}
var rootDict = Native.FLValue_AsDict(root);
if (rootDict == null)
{
Log.To.Database.E(Tag, "Failed to encode document body properly. Aborting save of document!");
return;
}
ThreadSafety.DoLocked(() =>
{
if (Native.c4doc_dictContainsBlobs(rootDict, SharedStrings.SharedKeys))
{
revFlags |= C4RevisionFlags.HasAttachments;
}
});
}
else if (doc.IsEmpty)
{
FLEncoder *encoder = SharedEncoder;
Native.FLEncoder_BeginDict(encoder, 0);
Native.FLEncoder_EndDict(encoder);
body = Native.FLEncoder_Finish(encoder, null);
Native.FLEncoder_Reset(encoder);
}
var rawDoc = baseDoc != null ? baseDoc :
doc.c4Doc?.HasValue == true ? doc.c4Doc.RawDoc : null;
if (rawDoc != null)
{
doc.ThreadSafety.DoLocked(() =>
{
ThreadSafety.DoLocked(() =>
{
*outDoc = (C4Document *)NativeHandler.Create()
.AllowError((int)C4ErrorCode.Conflict, C4ErrorDomain.LiteCoreDomain).Execute(
err => Native.c4doc_update(rawDoc, body, revFlags, err));
});
});
}
else
{
ThreadSafety.DoLocked(() =>
{
*outDoc = (C4Document *)NativeHandler.Create()
.AllowError((int)C4ErrorCode.Conflict, C4ErrorDomain.LiteCoreDomain).Execute(
err => Native.c4doc_create(_c4db, doc.Id, body, revFlags, err));
});
}
}
