Added wsme support to the magnum apis
Co-Authored-By: Digambar Patil <digambarpat@gmail.com> Co-Authored-By: Steven Dake <sdake@redhat.com> Change-Id: I1daa79f8de7744d81b629a0c1836b3dc0ca59c71
This commit is contained in:
digambar
Davanum Srinivas (dims)
parent
e404e944ad
commit
f90f540db4
@ -1,27 +1,202 @@
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import ast
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import base64
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import copy
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import datetime
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import functools
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import inspect
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import json
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#import pytz
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import uuid
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import pecan
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import wsme
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from oslo.config import cfg
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from oslo.utils import netutils
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from oslo.utils import strutils
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from oslo.utils import timeutils
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from wsme import types as wtypes
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import wsmeext.pecan as weme_pecan
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import wsmeext.pecan as wsme_pecan
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from pecan import rest, response
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import six
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state_kind = ["ok", "alarm", "insufficient data"]
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state_kind_enum = wtypes.Enum(str, *state_kind)
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operation_kind = ('lt', 'le', 'eq', 'ne', 'ge', 'gt')
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operation_kind_enum = wtypes.Enum(str, *operation_kind)
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class _Base(wtypes.Base):
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@classmethod
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def from_db_model(cls, m):
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return cls(**(m.as_dict()))
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@classmethod
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def from_db_and_links(cls, m, links):
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return cls(links=links, **(m.as_dict()))
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def as_dict(self, db_model):
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valid_keys = inspect.getargspec(db_model.__init__)[0]
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if 'self' in valid_keys:
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valid_keys.remove('self')
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return self.as_dict_from_keys(valid_keys)
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def as_dict_from_keys(self, keys):
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return dict((k, getattr(self, k))
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for k in keys
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if hasattr(self, k) and
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getattr(self, k) != wsme.Unset)
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class Query(_Base):
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"""Query filter."""
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# The data types supported by the query.
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_supported_types = ['integer', 'float', 'string', 'boolean']
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# Functions to convert the data field to the correct type.
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_type_converters = {'integer': int,
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'float': float,
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'boolean': functools.partial(
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strutils.bool_from_string, strict=True),
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'string': six.text_type,
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'datetime': timeutils.parse_isotime}
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_op = None # provide a default
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def get_op(self):
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return self._op or 'eq'
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def set_op(self, value):
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self._op = value
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field = wtypes.text
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"The name of the field to test"
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# op = wsme.wsattr(operation_kind, default='eq')
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# this ^ doesn't seem to work.
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op = wsme.wsproperty(operation_kind_enum, get_op, set_op)
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"The comparison operator. Defaults to 'eq'."
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value = wtypes.text
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"The value to compare against the stored data"
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type = wtypes.text
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"The data type of value to compare against the stored data"
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def __repr__(self):
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# for logging calls
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return '<Query %r %s %r %s>' % (self.field,
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self.op,
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self.value,
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self.type)
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@classmethod
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def sample(cls):
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return cls(field='resource_id',
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op='eq',
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value='bd9431c1-8d69-4ad3-803a-8d4a6b89fd36',
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type='string'
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)
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def as_dict(self):
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return self.as_dict_from_keys(['field', 'op', 'type', 'value'])
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def _get_value_as_type(self, forced_type=None):
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"""Convert metadata value to the specified data type.
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This method is called during metadata query to help convert the
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querying metadata to the data type specified by user. If there is no
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data type given, the metadata will be parsed by ast.literal_eval to
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try to do a smart converting.
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NOTE (flwang) Using "_" as prefix to avoid an InvocationError raised
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from wsmeext/sphinxext.py. It's OK to call it outside the Query class.
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Because the "public" side of that class is actually the outside of the
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API, and the "private" side is the API implementation. The method is
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only used in the API implementation, so it's OK.
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:returns: metadata value converted with the specified data type.
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"""
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type = forced_type or self.type
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try:
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converted_value = self.value
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if not type:
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try:
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converted_value = ast.literal_eval(self.value)
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except (ValueError, SyntaxError):
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# Unable to convert the metadata value automatically
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# let it default to self.value
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pass
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else:
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if type not in self._supported_types:
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# Types must be explicitly declared so the
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# correct type converter may be used. Subclasses
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# of Query may define _supported_types and
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# _type_converters to define their own types.
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raise TypeError()
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converted_value = self._type_converters[type](self.value)
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except ValueError:
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msg = (_('Unable to convert the value %(value)s'
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' to the expected data type %(type)s.') %
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{'value': self.value, 'type': type})
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raise ClientSideError(msg)
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except TypeError:
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msg = (_('The data type %(type)s is not supported. The supported'
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' data type list is: %(supported)s') %
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{'type': type, 'supported': self._supported_types})
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raise ClientSideError(msg)
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except Exception:
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msg = (_('Unexpected exception converting %(value)s to'
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' the expected data type %(type)s.') %
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{'value': self.value, 'type': type})
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raise ClientSideError(msg)
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return converted_value
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class Container(_Base):
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container_id = wtypes.text
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""" The ID of the containers."""
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name = wsme.wsattr(wtypes.text, mandatory=True)
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""" The name of the container."""
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desc = wsme.wsattr(wtypes.text, mandatory=True)
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def __init__(self, **kwargs):
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super(Container, self).__init__(**kwargs)
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@classmethod
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def sample(cls):
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return cls(id=str(uuid.uuid1(),
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name="Docker",
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desc='Docker Containers'))
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class ContainerController(rest.RestController):
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@weme_pecan.wsexpose(Container)
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def get(self):
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#TODO: Returns all the containers
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@wsme_pecan.wsexpose([Container], [Query], int)
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def get_all(self, q=None, limit=None):
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# TODO: Returns all the containers
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return {
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"200": "It returns all the containers."
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}
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@wsme_pecan.wsexpose(Container, wtypes.text)
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def get_one(self, container_id):
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# TODO: Returns all the containers
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return {
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"200": "It returns all the containers."
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}
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@wsme_pecan.wsexpose(Container, body=Container, status_code=201)
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def post(self):
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}
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@wsme_pecan.wsexpose([Container], body=[Container])
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def post(self, data):
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# TODO: Create a new container
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response.status = 201
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response.status=201
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return
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@wsme_pecan.wsexpose(None, status_code=204)
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def delete(self):
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# TODO: DELETE the containers
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response.status = 200
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response.status=200
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return
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