232 lines
8.7 KiB
Python
232 lines
8.7 KiB
Python
# Copyright (c) 2014 Rackspace, 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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import uuid
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from oslo.config import cfg
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import pecan
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from pecan import hooks
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from poppy.common import errors
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from poppy.common import uri
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from poppy.transport.pecan.controllers import base
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from poppy.transport.pecan import hooks as poppy_hooks
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from poppy.transport.pecan.models.request import service as req_service_model
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from poppy.transport.pecan.models.response import link
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from poppy.transport.pecan.models.response import service as resp_service_model
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from poppy.transport.validators import helpers
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from poppy.transport.validators.schemas import service
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from poppy.transport.validators.stoplight import decorators
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from poppy.transport.validators.stoplight import exceptions
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from poppy.transport.validators.stoplight import helpers as stoplight_helpers
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from poppy.transport.validators.stoplight import rule
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LIMITS_OPTIONS = [
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cfg.IntOpt('max_services_per_page', default=20,
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help='Max number of services per page for list services'),
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]
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LIMITS_GROUP = 'drivers:transport:limits'
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class ServiceAssetsController(base.Controller, hooks.HookController):
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__hooks__ = [poppy_hooks.Context(), poppy_hooks.Error()]
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@pecan.expose()
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@decorators.validate(
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service_id=rule.Rule(
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helpers.is_valid_service_id(),
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helpers.abort_with_message)
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)
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def delete(self, service_id):
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purge_url = pecan.request.GET.get('url', None)
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purge_all = pecan.request.GET.get('all', False)
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purge_all = (
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True if purge_all and purge_all.lower() == 'true' else False)
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if purge_url is None and not purge_all:
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pecan.abort(400, detail='No purge url provided '
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'when not purging all...')
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elif purge_all and purge_url is not None:
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pecan.abort(400, detail='Cannot provide all=true '
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'and a url at the same time')
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services_controller = self._driver.manager.services_controller
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try:
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services_controller.purge(self.project_id, service_id,
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purge_url)
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except LookupError as e:
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pecan.abort(404, detail=str(e))
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return pecan.Response(None, 202)
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class ServicesController(base.Controller, hooks.HookController):
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__hooks__ = [poppy_hooks.Context(), poppy_hooks.Error()]
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def __init__(self, driver):
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super(ServicesController, self).__init__(driver)
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self._conf = driver.conf
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self._conf.register_opts(LIMITS_OPTIONS, group=LIMITS_GROUP)
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self.limits_conf = self._conf[LIMITS_GROUP]
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self.max_services_per_page = self.limits_conf.max_services_per_page
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# Add assets controller here
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# need to initialize a nested controller with a parameter driver,
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# so added it in __init__ method.
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# see more in: http://pecan.readthedocs.org/en/latest/rest.html
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self.__class__.assets = ServiceAssetsController(driver)
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@pecan.expose('json')
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def get_all(self):
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marker = pecan.request.GET.get('marker', None)
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limit = pecan.request.GET.get('limit', 10)
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try:
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limit = int(limit)
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if limit <= 0:
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pecan.abort(400, detail=u'Limit should be greater than 0')
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if limit > self.max_services_per_page:
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error = u'Limit should be less than or equal to {0}'.format(
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self.max_services_per_page)
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pecan.abort(400, detail=error)
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except ValueError:
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error = (u'Limit should be an integer greater than 0 and less'
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u' or equal to {0}'.format(self.max_services_per_page))
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pecan.abort(400, detail=error)
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try:
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if marker:
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marker = str(uuid.UUID(marker))
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except ValueError:
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pecan.abort(400, detail="Marker must be a valid UUID")
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services_controller = self._driver.manager.services_controller
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service_resultset = services_controller.list(
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self.project_id, marker, limit)
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results = [
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resp_service_model.Model(s, self)
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for s in service_resultset]
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# TODO(obulpathi): edge case: when the total number of services is a
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# multiple of limit, the last batch has a non-null marker.
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links = []
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if len(results) > 0:
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links.append(
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link.Model(u'{0}/services?marker={1}&limit={2}'.format(
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self.base_url,
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results[-1]['id'],
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limit),
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'next'))
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return {
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'links': links,
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'services': results
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}
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@pecan.expose('json')
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@decorators.validate(
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service_id=rule.Rule(
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helpers.is_valid_service_id(),
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helpers.abort_with_message)
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)
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def get_one(self, service_id):
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services_controller = self._driver.manager.services_controller
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try:
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service_obj = services_controller.get(
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self.project_id, service_id)
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except ValueError:
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pecan.abort(404, detail='service %s could not be found' %
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service_id)
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# convert a service model into a response service model
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return resp_service_model.Model(service_obj, self)
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@pecan.expose('json')
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@decorators.validate(
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request=rule.Rule(
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helpers.json_matches_schema(
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service.ServiceSchema.get_schema("service", "POST")),
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helpers.abort_with_message,
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stoplight_helpers.pecan_getter))
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def post(self):
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services_controller = self._driver.manager.services_controller
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service_json_dict = json.loads(pecan.request.body.decode('utf-8'))
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service_obj = req_service_model.load_from_json(service_json_dict)
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service_id = service_obj.service_id
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try:
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services_controller.create(self.project_id, service_obj)
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except LookupError as e: # error handler for no flavor
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pecan.abort(400, detail=str(e))
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except ValueError as e: # error handler for existing service name
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pecan.abort(400, detail=str(e))
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service_url = str(
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uri.encode(u'{0}/v1.0/services/{1}'.format(
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pecan.request.host_url,
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service_id)))
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return pecan.Response(None, 202, headers={"Location": service_url})
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@pecan.expose('json')
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@decorators.validate(
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service_id=rule.Rule(
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helpers.is_valid_service_id(),
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helpers.abort_with_message)
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)
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def delete(self, service_id):
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services_controller = self._driver.manager.services_controller
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try:
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services_controller.delete(self.project_id, service_id)
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except LookupError as e:
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pecan.abort(404, detail=str(e))
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return pecan.Response(None, 202)
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@pecan.expose('json')
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@decorators.validate(
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service_id=rule.Rule(
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helpers.is_valid_service_id(),
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helpers.abort_with_message),
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request=rule.Rule(
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helpers.json_matches_schema(
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service.ServiceSchema.get_schema("service", "PATCH")),
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helpers.abort_with_message,
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stoplight_helpers.pecan_getter))
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def patch_one(self, service_id):
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service_updates = json.loads(pecan.request.body.decode('utf-8'))
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# if service_updates is empty, abort
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if not service_updates:
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pecan.abort(400, detail='No details provided to update')
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services_controller = self._driver.manager.services_controller
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try:
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services_controller.update(
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self.project_id, service_id, service_updates)
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except exceptions.ValidationFailed as e:
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pecan.abort(400, detail=str(e))
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except ValueError as e:
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pecan.abort(404, detail='service could not be found')
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except errors.ServiceStatusNotDeployed as e:
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pecan.abort(400, detail=str(e))
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except Exception as e:
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pecan.abort(400, detail=str(e))
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service_url = str(
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uri.encode(u'{0}/v1.0/services/{1}'.format(
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pecan.request.host_url,
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service_id)))
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return pecan.Response(None, 202, headers={"Location": service_url})
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