268 lines
10 KiB
Python
268 lines
10 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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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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from oslo.serialization import jsonutils
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from oslo_log import log as logging
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import six
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import webob.exc
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from wsme.rest import json
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from glance.api import policy
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from glance.api.v2.model.metadef_resource_type import ResourceType
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from glance.api.v2.model.metadef_resource_type import ResourceTypeAssociation
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from glance.api.v2.model.metadef_resource_type import ResourceTypeAssociations
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from glance.api.v2.model.metadef_resource_type import ResourceTypes
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from glance.common import exception
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from glance.common import utils
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from glance.common import wsgi
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import glance.db
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import glance.gateway
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from glance import i18n
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import glance.notifier
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import glance.schema
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LOG = logging.getLogger(__name__)
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_ = i18n._
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_LE = i18n._LE
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_LI = i18n._LI
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class ResourceTypeController(object):
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def __init__(self, db_api=None, policy_enforcer=None):
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self.db_api = db_api or glance.db.get_api()
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self.policy = policy_enforcer or policy.Enforcer()
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self.gateway = glance.gateway.Gateway(db_api=self.db_api,
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policy_enforcer=self.policy)
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def index(self, req):
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try:
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filters = {}
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filters['namespace'] = None
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rs_type_repo = self.gateway.get_metadef_resource_type_repo(
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req.context)
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db_resource_type_list = rs_type_repo.list(filters=filters)
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resource_type_list = [ResourceType.to_wsme_model(
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resource_type) for resource_type in db_resource_type_list]
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resource_types = ResourceTypes()
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resource_types.resource_types = resource_type_list
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.msg)
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except Exception as e:
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LOG.error(e)
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raise webob.exc.HTTPInternalServerError(e)
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return resource_types
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def show(self, req, namespace):
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try:
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filters = {}
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filters['namespace'] = namespace
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rs_type_repo = self.gateway.get_metadef_resource_type_repo(
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req.context)
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db_resource_type_list = rs_type_repo.list(filters=filters)
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resource_type_list = [ResourceTypeAssociation.to_wsme_model(
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resource_type) for resource_type in db_resource_type_list]
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resource_types = ResourceTypeAssociations()
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resource_types.resource_type_associations = resource_type_list
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.msg)
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except Exception as e:
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LOG.error(e)
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raise webob.exc.HTTPInternalServerError(e)
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return resource_types
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def create(self, req, resource_type, namespace):
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rs_type_factory = self.gateway.get_metadef_resource_type_factory(
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req.context)
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rs_type_repo = self.gateway.get_metadef_resource_type_repo(req.context)
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try:
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new_resource_type = rs_type_factory.new_resource_type(
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namespace=namespace, **resource_type.to_dict())
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rs_type_repo.add(new_resource_type)
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except exception.Forbidden as e:
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msg = (_LE("Forbidden to create resource type. Reason: %("
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"reason)s") % {'reason': utils.exception_to_str(e)})
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LOG.error(msg)
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.msg)
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except exception.Duplicate as e:
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raise webob.exc.HTTPConflict(explanation=e.msg)
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except Exception as e:
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LOG.error(e)
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raise webob.exc.HTTPInternalServerError()
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return ResourceTypeAssociation.to_wsme_model(new_resource_type)
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def delete(self, req, namespace, resource_type):
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rs_type_repo = self.gateway.get_metadef_resource_type_repo(req.context)
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try:
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filters = {}
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found = False
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filters['namespace'] = namespace
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db_resource_type_list = rs_type_repo.list(filters=filters)
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for db_resource_type in db_resource_type_list:
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if db_resource_type.name == resource_type:
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db_resource_type.delete()
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rs_type_repo.remove(db_resource_type)
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found = True
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if not found:
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raise exception.NotFound()
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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msg = (_("Failed to find resource type %(resourcetype)s to "
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"delete") % {'resourcetype': resource_type})
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LOG.error(msg)
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raise webob.exc.HTTPNotFound(explanation=msg)
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except Exception as e:
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LOG.error(e)
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raise webob.exc.HTTPInternalServerError()
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class RequestDeserializer(wsgi.JSONRequestDeserializer):
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_disallowed_properties = ['created_at', 'updated_at']
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def __init__(self, schema=None):
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super(RequestDeserializer, self).__init__()
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self.schema = schema or get_schema()
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def _get_request_body(self, request):
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output = super(RequestDeserializer, self).default(request)
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if 'body' not in output:
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msg = _('Body expected in request.')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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return output['body']
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@classmethod
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def _check_allowed(cls, image):
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for key in cls._disallowed_properties:
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if key in image:
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msg = _("Attribute '%s' is read-only.") % key
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raise webob.exc.HTTPForbidden(
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explanation=utils.exception_to_str(msg))
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def create(self, request):
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body = self._get_request_body(request)
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self._check_allowed(body)
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try:
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self.schema.validate(body)
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except exception.InvalidObject as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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resource_type = json.fromjson(ResourceTypeAssociation, body)
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return dict(resource_type=resource_type)
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class ResponseSerializer(wsgi.JSONResponseSerializer):
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def __init__(self, schema=None):
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super(ResponseSerializer, self).__init__()
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self.schema = schema
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def show(self, response, result):
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resource_type_json = json.tojson(ResourceTypeAssociations, result)
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body = jsonutils.dumps(resource_type_json, ensure_ascii=False)
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response.unicode_body = six.text_type(body)
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response.content_type = 'application/json'
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def index(self, response, result):
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resource_type_json = json.tojson(ResourceTypes, result)
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body = jsonutils.dumps(resource_type_json, ensure_ascii=False)
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response.unicode_body = six.text_type(body)
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response.content_type = 'application/json'
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def create(self, response, result):
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resource_type_json = json.tojson(ResourceTypeAssociation, result)
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response.status_int = 201
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body = jsonutils.dumps(resource_type_json, ensure_ascii=False)
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response.unicode_body = six.text_type(body)
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response.content_type = 'application/json'
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def delete(self, response, result):
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response.status_int = 204
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def _get_base_properties():
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return {
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'name': {
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'type': 'string',
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'description': _('Resource type names should be aligned with Heat '
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'resource types whenever possible: '
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'http://docs.openstack.org/developer/heat/'
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'template_guide/openstack.html'),
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'maxLength': 80,
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},
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'prefix': {
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'type': 'string',
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'description': _('Specifies the prefix to use for the given '
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'resource type. Any properties in the namespace '
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'should be prefixed with this prefix when being '
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'applied to the specified resource type. Must '
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'include prefix separator (e.g. a colon :).'),
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'maxLength': 80,
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},
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'properties_target': {
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'type': 'string',
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'description': _('Some resource types allow more than one key / '
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'value pair per instance. For example, Cinder '
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'allows user and image metadata on volumes. Only '
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'the image properties metadata is evaluated by '
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'Nova (scheduling or drivers). This property '
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'allows a namespace target to remove the '
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'ambiguity.'),
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'maxLength': 80,
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},
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"created_at": {
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"type": "string",
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"description": _("Date and time of resource type association"
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" (READ-ONLY)"),
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"format": "date-time"
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},
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"updated_at": {
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"type": "string",
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"description": _("Date and time of the last resource type "
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"association modification (READ-ONLY)"),
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"format": "date-time"
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}
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}
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def get_schema():
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properties = _get_base_properties()
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mandatory_attrs = ResourceTypeAssociation.get_mandatory_attrs()
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schema = glance.schema.Schema(
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'resource_type_association',
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properties,
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required=mandatory_attrs,
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)
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return schema
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def get_collection_schema():
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resource_type_schema = get_schema()
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return glance.schema.CollectionSchema('resource_type_associations',
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resource_type_schema)
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def create_resource():
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"""ResourceTypeAssociation resource factory method"""
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schema = get_schema()
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deserializer = RequestDeserializer(schema)
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serializer = ResponseSerializer(schema)
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controller = ResourceTypeController()
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return wsgi.Resource(controller, deserializer, serializer)
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