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"""
Configuration Base Class
"""
import configuration # python configuration module, not local!
import os
from leap.eip import config as eip_config
class BaseLeapConfig(object):
slug = None
# XXX we have to enforce that we have a slug (via interface)
# get property getter that raises NI..
def save(self):
raise NotImplementedError("abstract base class")
def load(self):
raise NotImplementedError("abstract base class")
def get_config(self, *kwargs):
raise NotImplementedError("abstract base class")
#XXX todo: enable this property after
#fixing name clash with "config" in use at
#vpnconnection
#@property
#def config(self):
#return self.get_config()
def get_value(self, *kwargs):
raise NotImplementedError("abstract base class")
class JSONLeapConfig(BaseLeapConfig):
def __init__(self, *args, **kwargs):
# sanity check
assert self.slug is not None
assert self.spec is not None
assert issubclass(self.spec, configuration.Configuration)
self._config = self.spec()
self._config.parse_args(list(args))
# mandatory baseconfig interface
def save(self, to=None):
if to is None:
to = self.filename
self._config.serialize(to)
def load(self, fromfile=None):
# load should get a much more generic
# argument. it could be, f.i., from_uri,
# and call to Fetcher
if fromfile is None:
fromfile = self.filename
self._config.deserialize(fromfile)
def get_config(self):
return self._config.config
# public methods
def get_filename(self):
return self._slug_to_filename()
@property
def filename(self):
return self.get_filename()
def _slug_to_filename(self):
# is this going to work in winland if slug is "foo/bar" ?
folder, filename = os.path.split(self.slug)
# XXX fix import
config_file = eip_config.get_config_file(filename, folder)
return config_file
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