339 lines
12 KiB
Python
339 lines
12 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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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) 2013-2016 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 six
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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 oslo_log import log
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from oslo_utils import uuidutils
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from sysinv._i18n import _
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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 cpu
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from sysinv.api.controllers.v1 import memory
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from sysinv.api.controllers.v1 import port
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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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LOG = log.getLogger(__name__)
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class NodePatchType(types.JsonPatchType):
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@staticmethod
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def mandatory_attrs():
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return ['/address', '/ihost_uuid']
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class Node(base.APIBase):
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"""API representation of a host node.
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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
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an node.
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"""
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uuid = types.uuid
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"Unique UUID for this node"
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numa_node = int
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"numa node zone for this inode"
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capabilities = {wtypes.text: utils.ValidTypes(wtypes.text,
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six.integer_types)}
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"This node's meta data"
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forihostid = int
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"The ihostid that this inode belongs to"
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ihost_uuid = types.uuid
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"The UUID of the host this node belongs to"
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links = [link.Link]
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"A list containing a self link and associated node links"
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icpus = [link.Link]
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"Links to the collection of icpus on this node"
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imemorys = [link.Link]
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"Links to the collection of imemorys on this node"
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ports = [link.Link]
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"Links to the collection of ports on this node"
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def __init__(self, **kwargs):
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self.fields = list(objects.node.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_node, expand=True):
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minimum_fields = ['uuid', 'numa_node', 'capabilities',
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'ihost_uuid',
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'forihostid'] if not expand else None
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fields = minimum_fields if not expand else None
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# node = inode.from_rpc_object(rpc_node, fields)
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# node = inode(**rpc_node.as_dict())
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node = Node.from_rpc_object(rpc_node, fields)
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# if not expand:
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# node.unset_fields_except(['uuid',
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# 'numa_node',
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# 'capabilities',
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# 'ihost_uuid', 'forihostid'])
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# never expose the ihost_id attribute
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node.forihostid = wtypes.Unset
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node.links = [link.Link.make_link('self', pecan.request.host_url,
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'inodes', node.uuid),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'inodes', node.uuid,
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bookmark=True)
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]
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if expand:
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node.icpus = [link.Link.make_link('self',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/icpus"),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/icpus",
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bookmark=True)
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]
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node.imemorys = [link.Link.make_link('self',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/imemorys"),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/imemorys",
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bookmark=True)
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]
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node.ports = [link.Link.make_link('self',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/ports"),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'inodes',
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node.uuid + "/ports",
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bookmark=True)
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]
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return node
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class NodeCollection(collection.Collection):
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"""API representation of a collection of nodes."""
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inodes = [Node]
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"A list containing node objects"
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def __init__(self, **kwargs):
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self._type = 'inodes'
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@classmethod
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def convert_with_links(cls, rpc_nodes, limit, url=None,
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expand=False, **kwargs):
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collection = NodeCollection()
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collection.inodes = [Node.convert_with_links(p, expand)
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for p in rpc_nodes]
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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 = 'NodeController'
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class NodeController(rest.RestController):
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"""REST controller for inodes."""
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icpus = cpu.CPUController(from_inode=True)
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"Expose icpus as a sub-element of inodes"
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imemorys = memory.MemoryController(from_inode=True)
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"Expose imemorys as a sub-element of inodes"
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ports = port.PortController(from_inode=True)
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"Expose ports as a sub-element of inodes"
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_custom_actions = {
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'detail': ['GET'],
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}
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def __init__(self, from_ihosts=False):
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self._from_ihosts = from_ihosts
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def _get_nodes_collection(self, ihost_uuid, marker, limit, sort_key,
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sort_dir, expand=False, resource_url=None):
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if self._from_ihosts and not ihost_uuid:
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raise exception.InvalidParameterValue(_(
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"Host 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.node.get_by_uuid(pecan.request.context,
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marker)
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if ihost_uuid:
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nodes = pecan.request.dbapi.inode_get_by_ihost(ihost_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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else:
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nodes = pecan.request.dbapi.inode_get_list(limit, marker_obj,
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sort_key=sort_key,
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sort_dir=sort_dir)
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return NodeCollection.convert_with_links(nodes, 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(NodeCollection, types.uuid, types.uuid, int,
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wtypes.text, wtypes.text)
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def get_all(self, ihost_uuid=None, marker=None, limit=None,
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sort_key='id', sort_dir='asc'):
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"""Retrieve a list of nodes."""
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return self._get_nodes_collection(ihost_uuid, marker, limit,
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sort_key, sort_dir)
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@wsme_pecan.wsexpose(NodeCollection, types.uuid, types.uuid, int,
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wtypes.text, wtypes.text)
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def detail(self, ihost_uuid=None, marker=None, limit=None,
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sort_key='id', sort_dir='asc'):
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"""Retrieve a list of nodes with detail."""
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# NOTE(lucasagomes): /detail should only work agaist collections
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parent = pecan.request.path.split('/')[:-1][-1]
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if parent != "inodes":
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raise exception.HTTPNotFound
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expand = True
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resource_url = '/'.join(['nodes', 'detail'])
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return self._get_nodes_collection(ihost_uuid,
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marker, limit,
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sort_key, sort_dir,
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expand, resource_url)
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@wsme_pecan.wsexpose(Node, types.uuid)
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def get_one(self, node_uuid):
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"""Retrieve information about the given node."""
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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rpc_node = objects.node.get_by_uuid(pecan.request.context, node_uuid)
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return Node.convert_with_links(rpc_node)
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@cutils.synchronized(LOCK_NAME)
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@wsme_pecan.wsexpose(Node, body=Node)
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def post(self, node):
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"""Create a new node."""
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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try:
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node = node.as_dict()
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# Get host
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ihostId = node.get('forihostid') or node.get('ihost_uuid')
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if uuidutils.is_uuid_like(ihostId):
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ihost = pecan.request.dbapi.ihost_get(ihostId)
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forihostid = ihost['id']
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node.update({'forihostid': forihostid})
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else:
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forihostid = ihostId
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LOG.debug("inode post nodes ihostid: %s" % forihostid)
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new_node = pecan.request.dbapi.inode_create(
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forihostid, node)
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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 Node.convert_with_links(new_node)
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@cutils.synchronized(LOCK_NAME)
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@wsme.validate(types.uuid, [NodePatchType])
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@wsme_pecan.wsexpose(Node, types.uuid,
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body=[NodePatchType])
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def patch(self, node_uuid, patch):
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"""Update an existing node."""
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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rpc_node = objects.node.get_by_uuid(
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pecan.request.context, node_uuid)
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# replace ihost_uuid and inode_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'] == '/ihost_uuid':
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p['path'] = '/forihostid'
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ihost = objects.host.get_by_uuid(pecan.request.context,
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p['value'])
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p['value'] = ihost.id
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try:
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node = Node(**jsonpatch.apply_patch(
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rpc_node.as_dict(),
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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.node.fields:
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if rpc_node[field] != getattr(node, field):
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rpc_node[field] = getattr(node, field)
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rpc_node.save()
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return Node.convert_with_links(rpc_node)
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@wsme_pecan.wsexpose(None, types.uuid, status_code=204)
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def delete(self, node_uuid):
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"""Delete a node."""
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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pecan.request.dbapi.inode_destroy(node_uuid)
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