2a56aa003d
We use v5 and v5.3.0 to put different python files for CDH5 and CDH5.3.0. CDH5 is CDH5.0.0, we use the name "CDH5" instead of "CDH5.0.0" for backward support. Currently since CDH5.0.0 does not support cm_api>6, we cannot use first_run API in CDH5.0.0, so we only implemented parts of the services that we implemented in CDH5.3.0. implements bp: cdh-version-management Change-Id: I3b3058f25912ddf6206d64db88ac40138a45a53f
59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import re
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from sahara.utils import general
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class VersionFactory(object):
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versions = None
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modules = None
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initialized = False
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@staticmethod
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def get_instance():
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if not VersionFactory.initialized:
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src_dir = os.path.join(os.path.dirname(__file__), '')
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versions = (
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[name[1:].replace('_', '.')
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for name in os.listdir(src_dir)
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if (os.path.isdir(os.path.join(src_dir, name))
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and re.match(r'^v\d+(_\d+)*$', name))])
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versions.sort(key=general.natural_sort_key)
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VersionFactory.versions = versions
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VersionFactory.modules = {}
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for version in VersionFactory.versions:
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module_name = 'sahara.plugins.cdh.v%s.versionhandler' % (
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version.replace('.', '_'))
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module_class = getattr(
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__import__(module_name, fromlist=['sahara']),
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'VersionHandler')
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module = module_class()
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key = version.replace('_', '.')
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VersionFactory.modules[key] = module
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VersionFactory.initialized = True
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return VersionFactory()
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def get_versions(self):
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return VersionFactory.versions
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def get_version_handler(self, version):
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return VersionFactory.modules[version]
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