BlobDataCSV

BlobDataCSV Objects

class BlobDataCSV(CSVParser.CSVParser)

ApertureDB Blob Data.

This class loads the Blob Data which is present in a CSV file, and converts it into a series of ApertureDB queries.

Is backed by a CSV file with the following columns:

FILENAME, PROP_NAME_1, ... PROP_NAME_N, constraint_PROP_NAME_1

FILENAME: The path of the blob object on the file system.

PROP_NAME_1 ... PROP_NAME_N: Arbitrary property names associated with this blob.

constraint_PROP_NAME_1: Constraints against specific property, used for conditionally adding a Blob.

Example CSV file::

filename,name,lastname,age,id,constraint_id
/mnt/blob1,John,Salchi,69,321423532,321423532
/mnt/blob2,Johna,Salchi,63,42342522,42342522
...

Example usage:

    data = BlobDataCSV("/path/to/BlobData.csv")
    loader = ParallelLoader(client)
    loader.ingest(data)

info

In the above example, the constraint_id ensures that a blob with the specified id would be only inserted if it does not already exist in the database.