185 lines
7.1 KiB
Python
185 lines
7.1 KiB
Python
# Copyright (c) 2016 NTT DATA
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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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"""The Host API extension."""
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from oslo_utils import encodeutils
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from oslo_utils import strutils
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from six.moves import http_client as http
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from webob import exc
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from masakari.api.openstack import common
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from masakari.api.openstack import extensions
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from masakari.api.openstack.ha.schemas import hosts as schema
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from masakari.api.openstack import wsgi
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from masakari.api import validation
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from masakari import exception
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from masakari.ha import api as host_api
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from masakari.i18n import _
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from masakari import objects
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from masakari.policies import hosts as host_policies
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ALIAS = "os-hosts"
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class HostsController(wsgi.Controller):
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"""The Host API controller for the OpenStack API."""
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def __init__(self):
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self.api = host_api.HostAPI()
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@extensions.expected_errors((http.BAD_REQUEST, http.FORBIDDEN,
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http.NOT_FOUND))
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def index(self, req, segment_id):
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"""Returns a list a hosts."""
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context = req.environ['masakari.context']
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context.can(host_policies.HOSTS % 'index')
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try:
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filters = {}
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limit, marker = common.get_limit_and_marker(req)
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sort_keys, sort_dirs = common.get_sort_params(req.params)
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segment = objects.FailoverSegment.get_by_uuid(context,
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segment_id)
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filters['failover_segment_id'] = segment.uuid
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if 'name' in req.params:
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filters['name'] = req.params['name']
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if 'type' in req.params:
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filters['type'] = req.params['type']
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if 'control_attributes' in req.params:
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filters['control_attributes'] = req.params[
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'control_attributes']
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if 'on_maintenance' in req.params:
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try:
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filters['on_maintenance'] = strutils.bool_from_string(
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req.params['on_maintenance'], strict=True)
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except ValueError as ex:
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msg = _("Invalid value for on_maintenance: "
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"%s") % encodeutils.exception_to_unicode(ex)
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raise exc.HTTPBadRequest(explanation=msg)
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if 'reserved' in req.params:
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try:
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filters['reserved'] = strutils.bool_from_string(
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req.params['reserved'], strict=True)
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except ValueError as ex:
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msg = _("Invalid value for reserved: "
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"%s") % encodeutils.exception_to_unicode(ex)
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raise exc.HTTPBadRequest(explanation=msg)
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hosts = self.api.get_all(context, filters=filters,
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sort_keys=sort_keys, sort_dirs=sort_dirs,
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limit=limit, marker=marker)
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except exception.MarkerNotFound as ex:
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raise exc.HTTPBadRequest(explanation=ex.format_message())
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except exception.Invalid as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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except exception.FailoverSegmentNotFound as ex:
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raise exc.HTTPNotFound(explanation=ex.format_message())
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return {'hosts': hosts}
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@wsgi.response(http.CREATED)
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@extensions.expected_errors((http.FORBIDDEN, http.NOT_FOUND,
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http.CONFLICT))
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@validation.schema(schema.create)
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def create(self, req, segment_id, body):
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"""Creates a host."""
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context = req.environ['masakari.context']
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context.can(host_policies.HOSTS % 'create')
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host_data = body.get('host')
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try:
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host = self.api.create_host(context, segment_id, host_data)
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except exception.FailoverSegmentNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.HostExists as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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return {'host': host}
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@extensions.expected_errors((http.FORBIDDEN, http.NOT_FOUND))
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def show(self, req, segment_id, id):
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"""Shows the details of a host."""
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context = req.environ['masakari.context']
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context.can(host_policies.HOSTS % 'detail')
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try:
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host = self.api.get_host(context, segment_id, id)
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except exception.HostNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.FailoverSegmentNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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return {'host': host}
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@extensions.expected_errors((http.FORBIDDEN, http.NOT_FOUND,
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http.CONFLICT))
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@validation.schema(schema.update)
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def update(self, req, segment_id, id, body):
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"""Updates the existing host."""
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context = req.environ['masakari.context']
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context.can(host_policies.HOSTS % 'update')
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host_data = body.get('host')
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try:
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host = self.api.update_host(context, segment_id, id, host_data)
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except exception.HostNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.FailoverSegmentNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except (exception.HostExists, exception.Conflict) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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return {'host': host}
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@wsgi.response(http.NO_CONTENT)
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@extensions.expected_errors((http.FORBIDDEN, http.NOT_FOUND,
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http.CONFLICT))
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def delete(self, req, segment_id, id):
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"""Removes a host by id."""
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context = req.environ['masakari.context']
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context.can(host_policies.HOSTS % 'delete')
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try:
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self.api.delete_host(context, segment_id, id)
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except exception.FailoverSegmentNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.HostNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.Conflict as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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class Hosts(extensions.V1APIExtensionBase):
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"""Hosts controller"""
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name = "Hosts"
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alias = ALIAS
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version = 1
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def get_resources(self):
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parent = {'member_name': 'segment',
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'collection_name': 'segments'}
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resources = [
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extensions.ResourceExtension(
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'hosts', HostsController(), parent=parent,
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member_name='host')]
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return resources
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def get_controller_extensions(self):
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return []
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