poppy/poppy/transport/pecan/controllers/v1/services.py

108 lines
4.5 KiB
Python

# Copyright (c) 2014 Rackspace, Inc.
#
# 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.
import json
import pecan
from poppy.common import uri
from poppy.transport.pecan.controllers import base
from poppy.transport.pecan.models.request import service as req_service_model
from poppy.transport.pecan.models.response import link
from poppy.transport.pecan.models.response import service as resp_service_model
from poppy.transport.validators import helpers
from poppy.transport.validators.schemas import service
from poppy.transport.validators.stoplight import decorators
from poppy.transport.validators.stoplight import helpers as stoplight_helpers
from poppy.transport.validators.stoplight import rule
class ServicesController(base.Controller):
@pecan.expose('json')
def get_all(self):
marker = pecan.request.GET.get('marker')
limit = pecan.request.GET.get('limit')
services_controller = self._driver.manager.services_controller
service_resultset = services_controller.list(
self.project_id, marker, limit)
result = [
resp_service_model.Model(s) for s in service_resultset]
# TODO(tonytan4ever): edge case: what should be the result when there
# is no service ? What should be the links field of return like ?
return {
'links': link.Model('/v1.0/services?marker={0}&limit={1}'.format(
result[-1]["name"] if len(result) > 0 else None,
limit),
'next'),
'services': result
}
@pecan.expose('json')
def get_one(self, service_name):
services_controller = self._driver.manager.services_controller
service_obj = services_controller.get(self.project_id, service_name)
# convert a service model into a response service model
return resp_service_model.Model(service_obj)
@pecan.expose('json')
@decorators.validate(
request=rule.Rule(
helpers.json_matches_schema(
service.ServiceSchema.get_schema("service", "POST")),
helpers.abort_with_message,
stoplight_helpers.pecan_getter))
def post(self):
services_controller = self._driver.manager.services_controller
service_json_dict = json.loads(pecan.request.body.decode('utf-8'))
service_obj = req_service_model.load_from_json(service_json_dict)
service_name = service_json_dict.get("name", None)
try:
services_controller.create(self.project_id, service_obj)
except LookupError as e: # error handler for no flavor
pecan.abort(400, detail=str(e))
except ValueError as e: # error handler for existing service name
pecan.abort(400, detail=str(e))
service_url = str(
uri.encode(u'{0}/v1.0/services/{1}'.format(
pecan.request.host_url,
service_name)))
pecan.response.status = 202
pecan.response.headers["Location"] = service_url
@pecan.expose('json')
def delete(self, service_name):
services_controller = self._driver.manager.services_controller
return services_controller.delete(self.project_id, service_name)
@pecan.expose('json')
@decorators.validate(
service_name=rule.Rule(
helpers.is_valid_service_name(),
helpers.abort_with_message),
request=rule.Rule(
helpers.json_matches_schema(
service.ServiceSchema.get_schema("service", "PATCH")),
helpers.abort_with_message,
stoplight_helpers.pecan_getter))
def patch_one(self, service_name):
services_controller = self._driver.manager.services_controller
service_json = json.loads(pecan.request.body.decode('utf-8'))
# TODO(tonytan4ever): convert service_json into a partial service model
# under poppy.models.helpers.service.py
# and pass service_json to update
return services_controller.update(self.project_id, service_name,
service_json)