6e31938a0f
Decorator content does too many different actions, so let's split it into 3 decorators: @handle_errors, @validate and @serialize. We can skip calling @serialize in many places, because those methods just raise some http error. Also I've changed return value of all handlers from serialized json (string) to python's structures, lists and dicts. So It's become possible to implement different serializers and I've added support for YAML output. Change-Id: Ia3da3bd809bcca923d53666eca54def78c995f65 Closes-Bug: #1606211
168 lines
5.2 KiB
Python
168 lines
5.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import six
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from nailgun.api.v1.handlers import base
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from nailgun.api.v1.handlers.base import handle_errors
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from nailgun.api.v1.handlers.base import serialize
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from nailgun.api.v1.handlers.base import validate
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from nailgun.api.v1.validators.role import RoleValidator
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from nailgun import errors
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from nailgun import objects
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from nailgun.objects.serializers.role import RoleSerializer
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class RoleHandler(base.SingleHandler):
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validator = RoleValidator
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def get_role_or_404(self, release_id, role_name):
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role = self.single.get_by_release_id_role_name(release_id, role_name)
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if role is None:
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raise self.http(
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404,
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u'Role {name} for release {release} is not found'.format(
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release=release_id, name=role_name))
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return role
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@handle_errors
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@validate
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@serialize
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def GET(self, release_id, role_name):
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"""Retrieve role
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:http:
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* 200 (OK)
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* 404 (no such object found)
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"""
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release = self.get_object_or_404(objects.Release, release_id)
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return RoleSerializer.serialize_from_release(release, role_name)
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@handle_errors
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@validate
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@serialize
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def PUT(self, release_id, role_name):
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"""Update role
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:http:
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* 200 (OK)
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* 404 (no such object found)
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"""
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release = self.get_object_or_404(objects.Release, release_id)
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data = self.checked_data(
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self.validator.validate_update, instance=release)
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objects.Release.update_role(release, data)
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return RoleSerializer.serialize_from_release(release, role_name)
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def DELETE(self, release_id, role_name):
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"""Remove role
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:http:
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* 204 (object successfully deleted)
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* 400 (cannot delete object)
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* 404 (no such object found)
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"""
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release = self.get_object_or_404(objects.Release, release_id)
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try:
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self.validator.validate_delete(release, role_name)
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except errors.CannotDelete as exc:
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raise self.http(400, exc.message)
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objects.Release.remove_role(release, role_name)
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raise self.http(204)
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class RoleCollectionHandler(base.CollectionHandler):
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validator = RoleValidator
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@handle_errors
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@validate
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def POST(self, release_id):
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"""Create role for release
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:http:
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* 201 (object successfully created)
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* 400 (invalid object data specified)
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* 409 (object with such parameters already exists)
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"""
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data = self.checked_data()
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role_name = data['name']
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release = self.get_object_or_404(objects.Release, release_id)
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if role_name in release.roles_metadata:
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raise self.http(
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409,
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'Role with name {name} already '
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'exists for release {release}'.format(
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name=role_name, release=release_id))
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objects.Release.update_role(release, data)
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raise self.http(
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201, RoleSerializer.serialize_from_release(release, role_name))
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@handle_errors
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@validate
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@serialize
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def GET(self, release_id):
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release = self.get_object_or_404(objects.Release, release_id)
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role_names = six.iterkeys(release.roles_metadata)
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return [RoleSerializer.serialize_from_release(release, name)
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for name in role_names]
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class ClusterRolesHandler(base.BaseHandler):
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def _check_role(self, cluster, role_name):
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available_roles = six.iterkeys(objects.Cluster.get_roles(cluster))
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if role_name not in available_roles:
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raise self.http(404, 'Role is not found for the cluster')
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@handle_errors
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@validate
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@serialize
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def GET(self, cluster_id, role_name):
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""":returns: JSON-ed metadata for the role
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:http:
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* 200 (OK)
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* 404 (no such object found)
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"""
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cluster = self.get_object_or_404(objects.Cluster, cluster_id)
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self._check_role(cluster, role_name)
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return RoleSerializer.serialize_from_cluster(cluster, role_name)
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class ClusterRolesCollectionHandler(base.BaseHandler):
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@handle_errors
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@validate
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@serialize
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def GET(self, cluster_id):
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""":returns: collection of JSON-ed cluster roles metadata
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:http:
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* 200 (OK)
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* 404 (no such object found)
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"""
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cluster = self.get_object_or_404(objects.Cluster, cluster_id)
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roles_names = six.iterkeys(objects.Cluster.get_roles(cluster))
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return [RoleSerializer.serialize_from_cluster(cluster, name)
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for name in roles_names]
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