Command Formats

NDN-Repo interacts with clients using command interests. NDN-Repo's command interests follow the Repo protocol spec, and it's serialized using python-ndn's TLVModel. Fields are encoded in order:

1) Command Parameter

class RepoCommandParameter(TlvModel):
    name = NameField()
    start_block_id = UintField(RepoTypeNumber.START_BLOCK_ID)
    end_block_id = UintField(RepoTypeNumber.END_BLOCK_ID)
    process_id = UintField(RepoTypeNumber.PROCESS_ID)

2) Command Response

class RepoCommandResponse(TlvModel):
    name = NameField()
    start_block_id = UintField(RepoTypeNumber.START_BLOCK_ID)
    end_block_id = UintField(RepoTypeNumber.END_BLOCK_ID)
    process_id = UintField(RepoTypeNumber.PROCESS_ID)
    status_code = UintField(RepoTypeNumber.STATUS_CODE)
    insert_num = UintField(RepoTypeNumber.INSERT_NUM)
    delete_num = UintField(RepoTypeNumber.DELETE_NUM)

The status code in RepoCommandResponse has the following definition:

• 100: The command is OK
• 200: All the data have been inserted/deleted
• 300: The insertion/deletion command is in progress
• 401: The insertion/deletion command is invalidated
• 403: Malformed Command
• 404: No such insertion/deletion is in progress