289 lines
10 KiB
Python
289 lines
10 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 UnitedStack Inc.
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# All Rights Reserved.
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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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#
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# Copyright (c) 2016 Wind River Systems, Inc.
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#
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import jsonpatch
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import pecan
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from pecan import rest
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import wsme
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from wsme import types as wtypes
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import wsmeext.pecan as wsme_pecan
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from sysinv.api.controllers.v1 import base
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from sysinv.api.controllers.v1 import collection
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from sysinv.api.controllers.v1 import link
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from sysinv.api.controllers.v1 import types
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from sysinv.api.controllers.v1 import utils
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from sysinv.common import exception
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from sysinv.common import utils as cutils
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from sysinv import objects
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from sysinv.openstack.common.gettextutils import _
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from sysinv.openstack.common import log
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LOG = log.getLogger(__name__)
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class LLDPTLVPatchType(types.JsonPatchType):
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@staticmethod
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def mandatory_attrs():
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return []
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class LLDPTLV(base.APIBase):
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"""API representation of an LldpTlv
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This class enforces type checking and value constraints, and converts
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between the internal object model and the API representation of an
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LLDP tlv.
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"""
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type = wtypes.text
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"Represent the type of the lldp tlv"
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value = wtypes.text
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"Represent the value of the lldp tlv"
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agent_id = int
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"Represent the agent_id the lldp tlv belongs to"
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neighbour_id = int
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"Represent the neighbour the lldp tlv belongs to"
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agent_uuid = types.uuid
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"Represent the UUID of the agent the lldp tlv belongs to"
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neighbour_uuid = types.uuid
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"Represent the UUID of the neighbour the lldp tlv belongs to"
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links = [link.Link]
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"Represent a list containing a self link and associated lldp tlv links"
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def __init__(self, **kwargs):
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self.fields = objects.lldp_tlv.fields.keys()
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for k in self.fields:
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setattr(self, k, kwargs.get(k))
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@classmethod
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def convert_with_links(cls, rpc_lldp_tlv, expand=True):
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lldp_tlv = LLDPTLV(**rpc_lldp_tlv.as_dict())
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if not expand:
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lldp_tlv.unset_fields_except(['type', 'value'])
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# never expose the id attribute
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lldp_tlv.agent_id = wtypes.Unset
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lldp_tlv.neighbour_id = wtypes.Unset
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lldp_tlv.links = [link.Link.make_link('self', pecan.request.host_url,
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'lldp_tlvs', lldp_tlv.type),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'lldp_tlvs', lldp_tlv.type,
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bookmark=True)]
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return lldp_tlv
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class LLDPTLVCollection(collection.Collection):
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"""API representation of a collection of LldpTlv objects."""
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lldp_tlvs = [LLDPTLV]
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"A list containing LldpTlv objects"
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def __init__(self, **kwargs):
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self._type = 'lldp_tlvs'
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@classmethod
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def convert_with_links(cls, rpc_lldp_tlvs, limit, url=None,
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expand=False, **kwargs):
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collection = LLDPTLVCollection()
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collection.lldp_tlvs = [LLDPTLV.convert_with_links(a, expand)
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for a in rpc_lldp_tlvs]
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collection.next = collection.get_next(limit, url=url, **kwargs)
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return collection
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LOCK_NAME = 'LLDPTLVController'
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class LLDPTLVController(rest.RestController):
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"""REST controller for LldpTlvs."""
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_custom_actions = {
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'detail': ['GET'],
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}
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def __init__(self, from_lldp_agents=False, from_lldp_neighbours=False):
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self._from_lldp_agents = from_lldp_agents
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self._from_lldp_neighbours = from_lldp_neighbours
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def _get_lldp_tlvs_collection(self, uuid,
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marker, limit, sort_key, sort_dir,
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expand=False, resource_url=None):
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if self._from_lldp_agents and not uuid:
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raise exception.InvalidParameterValue(
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_("LLDP agent id not specified."))
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if self._from_lldp_neighbours and not uuid:
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raise exception.InvalidParameterValue(
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_("LLDP neighbour id not specified."))
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limit = utils.validate_limit(limit)
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sort_dir = utils.validate_sort_dir(sort_dir)
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marker_obj = None
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if marker:
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marker_obj = objects.lldp_tlv.get_by_uuid(pecan.request.context,
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marker)
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if self._from_lldp_agents:
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tlvs = pecan.request.dbapi.lldp_tlv_get_by_agent(uuid, limit,
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marker_obj,
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sort_key=sort_key,
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sort_dir=sort_dir)
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elif self._from_lldp_neighbours:
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tlvs = pecan.request.dbapi.lldp_tlv_get_by_neighbour(
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uuid, limit, marker_obj, sort_key=sort_key, sort_dir=sort_dir)
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else:
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tlvs = pecan.request.dbapi.lldp_tlv_get_list(
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limit, marker_obj, sort_key=sort_key, sort_dir=sort_dir)
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return LLDPTLVCollection.convert_with_links(tlvs, limit,
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url=resource_url,
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expand=expand,
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sort_key=sort_key,
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sort_dir=sort_dir)
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@wsme_pecan.wsexpose(LLDPTLVCollection, types.uuid,
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types.uuid, int, wtypes.text, wtypes.text)
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def get_all(self, uuid=None,
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marker=None, limit=None, sort_key='id', sort_dir='asc'):
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"""Retrieve a list of lldp tlvs."""
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return self._get_lldp_tlvs_collection(uuid, marker, limit, sort_key,
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sort_dir)
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@wsme_pecan.wsexpose(LLDPTLVCollection, types.uuid, types.uuid, int,
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wtypes.text, wtypes.text)
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def detail(self, uuid=None, marker=None, limit=None,
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sort_key='id', sort_dir='asc'):
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"""Retrieve a list of lldp_tlvs with detail."""
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parent = pecan.request.path.split('/')[:-1][-1]
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if parent != "lldp_tlvs":
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raise exception.HTTPNotFound
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expand = True
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resource_url = '/'.join(['lldp_tlvs', 'detail'])
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return self._get_lldp_tlvs_collection(uuid, marker, limit, sort_key,
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sort_dir, expand, resource_url)
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@wsme_pecan.wsexpose(LLDPTLV, int)
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def get_one(self, id):
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"""Retrieve information about the given lldp tlv."""
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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rpc_lldp_tlv = objects.lldp_tlv.get_by_id(
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pecan.request.context, id)
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return LLDPTLV.convert_with_links(rpc_lldp_tlv)
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@cutils.synchronized(LOCK_NAME)
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@wsme_pecan.wsexpose(LLDPTLV, body=LLDPTLV)
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def post(self, tlv):
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"""Create a new lldp tlv."""
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if self._from_lldp_agents:
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raise exception.OperationNotPermitted
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if self._from_lldp_neighbours:
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raise exception.OperationNotPermitted
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try:
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agent_uuid = tlv.agent_uuid
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neighbour_uuid = tlv.neighbour_uuid
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new_tlv = pecan.request.dbapi.lldp_tlv_create(tlv.as_dict(),
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agent_uuid,
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neighbour_uuid)
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except exception.SysinvException as e:
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LOG.exception(e)
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raise wsme.exc.ClientSideError(_("Invalid data"))
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return tlv.convert_with_links(new_tlv)
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@cutils.synchronized(LOCK_NAME)
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@wsme.validate(types.uuid, [LLDPTLVPatchType])
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@wsme_pecan.wsexpose(LLDPTLV, int,
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body=[LLDPTLVPatchType])
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def patch(self, id, patch):
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"""Update an existing lldp tlv."""
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if self._from_lldp_agents:
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raise exception.OperationNotPermitted
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if self._from_lldp_neighbours:
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raise exception.OperationNotPermitted
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rpc_tlv = objects.lldp_tlv.get_by_id(
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pecan.request.context, id)
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# replace agent_uuid and neighbour_uuid with corresponding
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patch_obj = jsonpatch.JsonPatch(patch)
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for p in patch_obj:
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if p['path'] == '/agent_uuid':
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p['path'] = '/agent_id'
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agent = objects.lldp_agent.get_by_uuid(pecan.request.context,
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p['value'])
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p['value'] = agent.id
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if p['path'] == '/neighbour_uuid':
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p['path'] = '/neighbour_id'
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try:
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neighbour = objects.lldp_neighbour.get_by_uuid(
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pecan.request.context, p['value'])
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p['value'] = neighbour.id
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except exception.SysinvException as e:
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LOG.exception(e)
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p['value'] = None
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try:
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tlv = LLDPTLV(
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**jsonpatch.apply_patch(rpc_tlv.as_dict(), patch_obj))
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except utils.JSONPATCH_EXCEPTIONS as e:
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raise exception.PatchError(patch=patch, reason=e)
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# Update only the fields that have changed
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for field in objects.lldp_tlv.fields:
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if rpc_tlv[field] != getattr(tlv, field):
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rpc_tlv[field] = getattr(tlv, field)
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rpc_tlv.save()
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return LLDPTLV.convert_with_links(rpc_tlv)
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@cutils.synchronized(LOCK_NAME)
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@wsme_pecan.wsexpose(None, int, status_code=204)
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def delete(self, id):
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"""Delete an lldp tlv."""
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if self._from_lldp_agents:
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raise exception.OperationNotPermitted
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if self._from_lldp_neighbours:
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raise exception.OperationNotPermitted
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pecan.request.dbapi.lldp_tlv_destroy(id)
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