kamaki_wrapper.py

# Copyright 2012 GRNET S.A. All rights reserved.
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from os.path import basename

from kamaki.config import Config
from kamaki.clients import ClientError
from kamaki.clients.image import ImageClient
from kamaki.clients.pithos import PithosClient

from image_creator.util import FatalError, progress

CONTAINER = "images"


class Kamaki:
    def __init__(self, account, token):
        self.account = account
        self.token = token

        config = Config()

        pithos_url = config.get('storage', 'url')
        self.container = CONTAINER
        self.pithos_client = PithosClient(pithos_url, token, self.account,
                                                                self.container)

        image_url = config.get('image', 'url')
        self.image_client = ImageClient(image_url, token)

        self.uploaded_object = None

    def upload(self, filename, size=None, remote_path=None):

        if remote_path is None:
            remote_path = basename(filename)

        with open(filename) as f:
            try:
                self.pithos_client.create_container(self.container)
            except ClientError as e:
                if e.status != 202:  # Ignore container already exists errors
                    raise FatalError("Pithos client: %d %s" % \
                                                        (e.status, e.message))
            try:
		hash_progress = progress("(1/2)  Calculating block hashes:")
		upload_progress = progress("(2/2)  Uploading missing blocks:")
                self.pithos_client.create_object(remote_path, f, size,
						hash_progress, upload_progress)
                self.uploaded_object = "pithos://%s/%s/%s" % \
                                (self.account, self.container, remote_path)
            except ClientError as e:
                raise FatalError("Pithos client: %d %s" % \
                                                        (e.status, e.message))

    def register(self, metadata):
        pass

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