sahara/sahara/service/edp/data_sources/swift/implementation.py

81 lines
3.3 KiB
Python

# Copyright (c) 2017 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from oslo_config import cfg
import six.moves.urllib.parse as urlparse
from sahara import exceptions as ex
from sahara.i18n import _
from sahara.service.edp.data_sources.base import DataSourceType
from sahara.swift import swift_helper as sw
from sahara.swift import utils as su
from sahara.utils.types import FrozenDict
CONF = cfg.CONF
class SwiftType(DataSourceType):
def validate(self, data):
self._validate_url(data['url'])
if not CONF.use_domain_for_proxy_users and "credentials" not in data:
raise ex.InvalidCredentials(_("No credentials provided for Swift"))
if not CONF.use_domain_for_proxy_users and (
"user" not in data["credentials"]):
raise ex.InvalidCredentials(
_("User is not provided in credentials for Swift"))
if not CONF.use_domain_for_proxy_users and (
"password" not in data["credentials"]):
raise ex.InvalidCredentials(
_("Password is not provided in credentials for Swift"))
def _validate_url(self, url):
if len(url) == 0:
raise ex.InvalidDataException(_("Swift url must not be empty"))
url = urlparse.urlparse(url)
if url.scheme != "swift":
raise ex.InvalidDataException(_("URL scheme must be 'swift'"))
# The swift url suffix does not have to be included in the netloc.
# However, if the swift suffix indicator is part of the netloc then
# we require the right suffix.
# Additionally, the path must be more than '/'
if (su.SWIFT_URL_SUFFIX_START in url.netloc and not
url.netloc.endswith(su.SWIFT_URL_SUFFIX)) or len(url.path) <= 1:
raise ex.InvalidDataException(
_("URL must be of the form swift://container%s/object")
% su.SWIFT_URL_SUFFIX)
def prepare_cluster(self, data_source, cluster, **kwargs):
if hasattr(data_source, "credentials"):
job_configs = kwargs.pop('job_configs')
if isinstance(job_configs, FrozenDict) or \
job_configs.get('configs', None) is None:
return
if not job_configs.get('proxy_configs'):
username = data_source.credentials['user']
password = data_source.credentials['password']
# Don't overwrite if there is already a value here
if job_configs['configs'].get(sw.HADOOP_SWIFT_USERNAME, None) \
is None and (username is not None):
job_configs['configs'][sw.HADOOP_SWIFT_USERNAME] = username
if job_configs['configs'].get(sw.HADOOP_SWIFT_PASSWORD, None) \
is None and (password is not None):
job_configs['configs'][sw.HADOOP_SWIFT_PASSWORD] = password