Synnefo

# TODO: Change domain!

SNAPSHOTS_DOMAIN = PLANKTON_DOMAIN

SNAPSHOTS_PREFIX = PLANKTON_PREFIX

    def list_snapshots(self, user=None):

        _snapshots = self.backend.get_domain_objects(domain=SNAPSHOTS_DOMAIN,

                                                     user=user)

        snapshots = []

        for (location, meta, permissions) in _snapshots:

            snapshot_url = "pithos://" + location

            if not (SNAPSHOTS_PREFIX + "is_snapshot") in meta:

                continue

            snapshots.append(snapshot_to_dict(snapshot_url, meta, permissions))

        snapshots.sort(key="uuid", reverse=False)

        return snapshots

    @handle_backend_exceptions

    def get_snapshot(self, user, snapshot_uuid):

        #snapshot = self.backend.get_version_props_for_uuid(self.user,

        #                                                   snapshot_uuid,

        #                                                   SNAPSHOT_DOMAIN)

        snapshot_url = self._get_image_url(snapshot_uuid)

        meta = self._get_meta(snapshot_url)

        permissions = self._get_permissions(snapshot_url)

        return snapshot_to_dict(snapshot_url, meta, permissions)

    @handle_backend_exceptions

    def delete_snapshot(self, snapshot_uuid):

        self.backend.delete_object_for_uuid(self.user, snapshot_uuid)

    # Distinquish between images and snapshots

    image["is_snapshot"] = (SNAPSHOTS_PREFIX + "is_snapshot") in meta

def snapshot_to_dict(snapshot_url, meta, permissions):

    """Render an snapshot to a dictionary"""

    account, container, name = split_url(snapshot_url)

    snapshot = {}

    snapshot["uuid"] = meta["uuid"]

    snapshot["map"] = meta["hash"]

    snapshot["size"] = meta["bytes"]

    snapshot['owner'] = account

    snapshot["location"] = snapshot_url

    snapshot["file_name"] = name

    created = meta.get("created_at", meta["modified"])

    snapshot["created_at"] = format_timestamp(created)

    for key, val in meta.items():

        if key.startswith(SNAPSHOTS_PREFIX):

            # Remove plankton prefix

            key = key.replace(SNAPSHOTS_PREFIX, "")

            if key == "metadata":

                snapshot[key] = json.loads(val)

            else:

                snapshot[key] = val

    return snapshot