Omnicloud.Airport

Omnicloud.Airport is a Python package for handling data transfer to and from cloud storage providers. It provides a set of classes that implement a common interface for working with cloud storage, making it easy to switch between providers and abstract classes for extending self.

Conception

Terminal

It is an object that provides cloud related features to existing objects. For example:

• omnicloud.airport.terminals.Dict contains methods for processing dictionary;
• omnicloud.airport.terminals.Pickle - for handling a pickle object.

Every terminal is inherited fom his based object: Dict from dict, Pickle from pickle, so you can use it in your code directly.

Each terminals contains one or more Gates.

Gate

Gate is a object that interacts with single cloud.

• omnicloud.airport.terminals.Dict.GStorageJSON - with JSON files at the Google Cloud Storage bucket;
• omnicloud.airport.terminals.Dict.LocalJSON - with local file.

Addons

The omnicloud.airport is a platform additional terminals or gates can be installed into that.

For more information please read the developer docs.

Filling with objects

The base package omnicloud.airport contains terminals for object from a pretty python only and gates for local files to theme.

If you need more please install additional packages. For example omnicloud-airport-dict-gcs to get a gate to Google Cloud Storage for dictionary or omnicloud-airport-pydantic to get a terminal for pydantic.

Installation & usage

pip3 install --upgrade omnicloud-airport

from omnicloud.airport.terminals import Dict

test_dict = {}
Dict(test_dict).departure('LocalJSON::/tmp::ensure_ascii=False', 'file_name.json')

The first argument of the method departure is a "waybill". The second is a filename.

The waybill is a specification for processing data in string format that contains three elements separated by "::":

1. name of class that represented needs gate;

2. the place for saving to;

3. additional options in format "key=value||key=value||key=b64:..."; it is optional argument.

As a waybill well as filename can contains a part of path:

Dict(test_dict).departure('LocalJSON::/tmp/a::ensure_ascii=False', 'file.json')
Dict(test_dict).departure('LocalJSON::/tmp::ensure_ascii=False', 'a/file.json')

Both command in the tutorial above save a data to file "/tmp/a/file.json"

For interaction with different storage (cloud provider) you have to change waybill in your config or environment variable:

pip3 install omnicloud-airport-gcp

then

Dict(test_dict).departure('GStorageJSON::gs://bucket::ensure_ascii=False||key_file=...', 'a/file.json')