78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
# Copyright (c) 2014 Dark Secret Software 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 falcon
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import simport
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import v1_api
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import v2_api
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class NotImplemented(Exception):
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pass
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def _load_implementations(impl_map, versions, config):
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for version in versions:
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target = config.get('v%d_impl' % version)
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klass = simport.load(target)
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impl_map[version] = klass()
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def _initialize(enabled_versions, implementation_map):
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# The de facto set of supported versions.
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versions = {1: v1_api.Schema,
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2: v2_api.Schema}
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api = falcon.API()
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routes = []
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for version in enabled_versions:
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klass = versions[version]
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impl = implementation_map.get(version)
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if not impl:
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raise NotImplemented("No implementation available for Quincy"
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" version %d" % version)
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routes.append(klass(version, api, impl))
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# TODO(sandy): We need to create the /v1
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# ...
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# /vN
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# resources here too.
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if __name__ == '__main__':
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# There may have been prior versions
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# but they could be deprecated and dropped.
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# Only the versions specified here define
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# the currently supported StackTach.v3 API.
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enabled_versions = [1, 2]
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# The default implementation is internal and works with
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# a fake/static set of data.
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local_config = {'v1_impl': 'v1_impl:Impl',
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'v2_impl': 'v2_impl:Impl'}
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impl_map = {}
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_load_implementations(impl_map, enabled_versions, local_config)
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# TODO(sandy): Overlay the impl_map with the implementations
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# specified in the config file.
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# config = ...
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# _load_implementations(impl_map, enabled_versions, config)
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_initialize(enabled_versions, impl_map)
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