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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Usage interface.
"""
import oslo_utils
from novaclient import api_versions
from novaclient import base
class Usage(base.Resource):
"""
Usage contains information about a tenant's physical resource usage
"""
def __repr__(self):
return "<ComputeUsage>"
def get(self):
fmt = '%Y-%m-%dT%H:%M:%S.%f'
if self.start and self.stop and self.tenant_id:
# set_loaded() first ... so if we have to bail, we know we tried.
self.set_loaded(True)
start = oslo_utils.timeutils.parse_strtime(self.start, fmt=fmt)
stop = oslo_utils.timeutils.parse_strtime(self.stop, fmt=fmt)
new = self.manager.get(self.tenant_id, start, stop)
if new:
self._add_details(new._info)
self.append_request_ids(new.request_ids)
class UsageManager(base.ManagerWithFind):
"""
Manage :class:`Usage` resources.
"""
resource_class = Usage
usage_prefix = 'os-simple-tenant-usage'
def _usage_query(self, start, end, marker=None, limit=None, detailed=None):
query = "?start=%s&end=%s" % (start.isoformat(), end.isoformat())
if limit:
query = "%s&limit=%s" % (query, int(limit))
if marker:
query = "%s&marker=%s" % (query, marker)
if detailed is not None:
query = "%s&detailed=%s" % (query, int(bool(detailed)))
return query
@api_versions.wraps("2.0", "2.39")
def list(self, start, end, detailed=False):
"""
Get usage for all tenants
:param start: :class:`datetime.datetime` Start date in UTC
:param end: :class:`datetime.datetime` End date in UTC
:param detailed: Whether to include information about each
instance whose usage is part of the report
:rtype: list of :class:`Usage`.
"""
query_string = self._usage_query(start, end, detailed=detailed)
url = '/%s%s' % (self.usage_prefix, query_string)
return self._list(url, 'tenant_usages')
@api_versions.wraps("2.40")
def list(self, start, end, detailed=False, marker=None, limit=None):
"""
Get usage for all tenants
:param start: :class:`datetime.datetime` Start date in UTC
:param end: :class:`datetime.datetime` End date in UTC
:param detailed: Whether to include information about each
instance whose usage is part of the report
:param marker: Begin returning usage data for instances that appear
later in the instance list than that represented by
this instance UUID (optional).
:param limit: Maximum number of instances to include in the usage
(optional). Note the API server has a configurable
default limit. If no limit is specified here or limit
is larger than default, the default limit will be used.
:rtype: list of :class:`Usage`.
"""
query_string = self._usage_query(start, end, marker, limit, detailed)
url = '/%s%s' % (self.usage_prefix, query_string)
return self._list(url, 'tenant_usages')
@api_versions.wraps("2.0", "2.39")
def get(self, tenant_id, start, end):
"""
Get usage for a specific tenant.
:param tenant_id: Tenant ID to fetch usage for
:param start: :class:`datetime.datetime` Start date in UTC
:param end: :class:`datetime.datetime` End date in UTC
:rtype: :class:`Usage`
"""
query_string = self._usage_query(start, end)
url = '/%s/%s%s' % (self.usage_prefix, tenant_id, query_string)
return self._get(url, 'tenant_usage')
@api_versions.wraps("2.40")
def get(self, tenant_id, start, end, marker=None, limit=None):
"""
Get usage for a specific tenant.
:param tenant_id: Tenant ID to fetch usage for
:param start: :class:`datetime.datetime` Start date in UTC
:param end: :class:`datetime.datetime` End date in UTC
:param marker: Begin returning usage data for instances that appear
later in the instance list than that represented by
this instance UUID (optional).
:param limit: Maximum number of instances to include in the usage
(optional). Note the API server has a configurable
default limit. If no limit is specified here or limit
is larger than default, the default limit will be used.
:rtype: :class:`Usage`
"""
query_string = self._usage_query(start, end, marker, limit)
url = '/%s/%s%s' % (self.usage_prefix, tenant_id, query_string)
return self._get(url, 'tenant_usage')
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