JSON-RPC API Appending
File appending is the process of inserting data at the end of a file. It is present in the WebDAV access layer, but not in the JSON-RPC API layer. This document offers a proposal for adding an append mode to JSON-RPC API.
Blueprint information
- Status:
- Complete
- Approver:
- ZFN Developers
- Priority:
- Low
- Drafter:
- Ross Light
- Direction:
- Approved
- Assignee:
- Ross Light
- Definition:
- Approved
- Series goal:
- Accepted for trunk
- Implementation:
-
Implemented
- Milestone target:
-
0.3.0a1
- Started by
- Ross Light
- Completed by
- Ross Light
Whiteboard
This seemed straightforward at first, but I've now hit a slight snag: I'd need to rehash the entire file, not just the new part, in order to get the correct SHA1 checksum. The reason I can get away with this in the WebDAV access is because the client already sent the data, but for JSON-RPC, I'd have to access it all over again.
Update 2008-11-16: I've now implemented the basics of JSON-RPC appending. The implementation hashes the original data while writing any new data from the client to a temporary file. Unfortunately, there is no way to get around a delay of some kind if we continue to hash the file.
Update 2008-11-20: Finished
