110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
# Copyright (c) 2010-2011 OpenStack, LLC.
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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 lxml import etree
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import string
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from keystone.logic.types import fault
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class Service(object):
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def __init__(self, service_id, desc):
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self.service_id = service_id
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self.desc = desc
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@staticmethod
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def from_xml(xml_str):
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try:
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dom = etree.Element("root")
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dom.append(etree.fromstring(xml_str))
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root = dom.find("{http://docs.openstack.org/identity/api/v2.0}" \
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"service")
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if root == None:
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raise fault.BadRequestFault("Expecting Service")
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service_id = root.get("id")
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desc = root.get("description")
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if service_id == None:
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raise fault.BadRequestFault("Expecting Service")
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return Service(service_id, desc)
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except etree.LxmlError as e:
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raise fault.BadRequestFault("Cannot parse service", str(e))
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@staticmethod
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def from_json(json_str):
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try:
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obj = json.loads(json_str)
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if not "service" in obj:
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raise fault.BadRequestFault("Expecting service")
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service = obj["service"]
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if not "id" in service:
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service_id = None
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else:
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service_id = service["id"]
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if service_id == None:
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raise fault.BadRequestFault("Expecting service")
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desc = service["description"]
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return Service(service_id, desc)
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except (ValueError, TypeError) as e:
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raise fault.BadRequestFault("Cannot parse service", str(e))
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def to_dom(self):
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dom = etree.Element("service",
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xmlns="http://docs.openstack.org/identity/api/v2.0")
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if self.service_id:
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dom.set("id", self.service_id)
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if self.desc:
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dom.set("description", string.lower(str(self.desc)))
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return dom
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def to_xml(self):
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return etree.tostring(self.to_dom())
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def to_dict(self):
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service = {}
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if self.service_id:
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service["id"] = self.service_id
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if self.desc:
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service["description"] = self.desc
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return {'service': service}
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def to_json(self):
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return json.dumps(self.to_dict())
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class Services(object):
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"A collection of services."
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def __init__(self, values, links):
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self.values = values
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self.links = links
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def to_xml(self):
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dom = etree.Element("services")
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dom.set(u"xmlns", "http://docs.openstack.org/identity/api/v2.0")
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for t in self.values:
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dom.append(t.to_dom())
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for t in self.links:
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dom.append(t.to_dom())
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return etree.tostring(dom)
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def to_json(self):
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values = [t.to_dict()["service"] for t in self.values]
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links = [t.to_dict()["links"] for t in self.links]
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return json.dumps({"services": {"values": values, "links": links}})
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