664c366bd8
This patch implements some of the operations required to add Message support to marconiclient. The higher level implementation of message deletion is not present in this patch, since it requires the definition of a new Message type, which will submitted in the upcoming patch. Partially-Implements blueprint python-marconiclient-v1 Partially-Implements blueprint messages-management Change-Id: I42efe24e0e6083c530d494e95b66c6c01535a849
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
# Copyright (c) 2013 Red Hat, 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 json
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from marconiclient.common import http
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from marconiclient.transport import base
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# NOTE(flaper87): Something is completely borked
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# with some imports. Using `from ... import errors`
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# will end up importing `marconiclient.errors` instead
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# of transports
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import marconiclient.transport.errors as errors
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from marconiclient.transport import response
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class HttpTransport(base.Transport):
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http_to_marconi = {
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400: errors.MalformedRequest,
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404: errors.ResourceNotFound,
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}
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def __init__(self, conf):
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super(HttpTransport, self).__init__(conf)
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self.client = http.Client()
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def _prepare(self, request):
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if not request.api:
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return request.endpoint, 'GET', request
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# TODO(flaper87): Validate if the user
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# explicitly wants so. Validation must
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# happen before any other operation here.
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# request.validate()
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schema = request.api.get_schema(request.operation)
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ref = schema.get('ref', '')
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ref_params = {}
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for param in list(request.params.keys()):
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if '{{{0}}}'.format(param) in ref:
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value = request.params.pop(param)
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# NOTE(flaper87): Marconi API parses
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# sequences encoded as '1,2,3,4'. Let's
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# encode lists, tuples and sets before
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# sending them to the server.
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if isinstance(value, (list, tuple, set)):
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value = ','.join(value)
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ref_params[param] = value
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url = '{0}/{1}'.format(request.endpoint.rstrip('/'),
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ref.format(**ref_params))
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return url, schema.get('method', 'GET'), request
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def send(self, request):
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url, method, request = self._prepare(request)
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# NOTE(flape87): Do not modify
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# request's headers directly.
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headers = request.headers.copy()
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headers['content-type'] = 'application/json'
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resp = self.client.request(method,
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url=url,
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params=request.params,
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headers=headers,
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data=request.content)
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if resp.status_code in self.http_to_marconi:
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try:
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msg = json.loads(resp.text)['description']
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except Exception:
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# TODO(flaper87): Log this exception
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# but don't stop raising the corresponding
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# exception
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msg = ''
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raise self.http_to_marconi[resp.status_code](msg)
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# NOTE(flaper87): This reads the whole content
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# and will consume any attempt of streaming.
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return response.Response(request, resp.text,
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headers=resp.headers)
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