3c7dbd3237
All OpenStack projects should use the oslo.log module for logging. This patch converts the Blazar code base from its oslo-incubator logging module to oslo.log. Change-Id: I2434bb8e864a77a3c3b1ec278767e5526e0a8952
382 lines
9.7 KiB
Python
382 lines
9.7 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Defines interface for DB access.
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Functions in this module are imported into the climate.db namespace. Call these
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functions from climate.db namespace, not the climate.db.api namespace.
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All functions in this module return objects that implement a dictionary-like
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interface.
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**Related Flags**
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:db_backend: string to lookup in the list of LazyPluggable backends.
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`sqlalchemy` is the only supported backend right now.
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:sql_connection: string specifying the sqlalchemy connection to use, like:
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`sqlite:///var/lib/climate/climate.sqlite`.
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"""
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from oslo_log import log as logging
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from climate.openstack.common.db import api as db_api
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from climate.openstack.common.db import options as db_options
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_BACKEND_MAPPING = {
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'sqlalchemy': 'climate.db.sqlalchemy.api',
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}
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IMPL = db_api.DBAPI(db_options.CONF.database.backend,
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backend_mapping=_BACKEND_MAPPING)
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LOG = logging.getLogger(__name__)
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def get_instance():
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"""Return a DB API instance."""
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return IMPL
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def setup_db():
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"""Set up database, create tables, etc.
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Return True on success, False otherwise
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"""
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return IMPL.setup_db()
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def drop_db():
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"""Drop database.
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Return True on success, False otherwise
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"""
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return IMPL.drop_db()
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# Helpers for building constraints / equality checks
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def constraint(**conditions):
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"""Return a constraint object suitable for use with some updates."""
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return IMPL.constraint(**conditions)
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def equal_any(*values):
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"""Return an equality condition object suitable for use in a constraint.
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Equal_any conditions require that a model object's attribute equal any
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one of the given values.
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"""
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return IMPL.equal_any(*values)
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def not_equal(*values):
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"""Return an inequality condition object suitable for use in a constraint.
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Not_equal conditions require that a model object's attribute differs from
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all of the given values.
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"""
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return IMPL.not_equal(*values)
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def to_dict(func):
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def decorator(*args, **kwargs):
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res = func(*args, **kwargs)
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if isinstance(res, list):
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return [item.to_dict() for item in res]
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if res:
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return res.to_dict()
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else:
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return None
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return decorator
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# Reservation
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def reservation_create(reservation_values):
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"""Create a reservation from the values."""
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return IMPL.reservation_create(reservation_values)
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@to_dict
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def reservation_get_all_by_lease_id(lease_id):
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"""Return all reservations belongs to specific lease."""
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return IMPL.reservation_get_all_by_lease_id(lease_id)
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@to_dict
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def reservation_get_all_by_values(**kwargs):
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"""Returns all entries filtered by col=value."""
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return IMPL.reservation_get_all_by_values(**kwargs)
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@to_dict
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def reservation_get(reservation_id):
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"""Return specific reservation."""
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return IMPL.reservation_get(reservation_id)
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def reservation_destroy(reservation_id):
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"""Delete specific reservation."""
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IMPL.reservation_destroy(reservation_id)
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def reservation_update(reservation_id, reservation_values):
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"""Update reservation."""
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IMPL.reservation_update(reservation_id, reservation_values)
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# Lease
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def lease_create(lease_values):
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"""Create a lease from values."""
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return IMPL.lease_create(lease_values)
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@to_dict
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def lease_get_all():
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"""Return all leases."""
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return IMPL.lease_get_all()
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@to_dict
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def lease_get_all_by_project(project_id):
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"""Return all leases in specific project."""
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return IMPL.lease_get_all_by_project(project_id)
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@to_dict
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def lease_get_all_by_user(user_id):
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"""Return all leases belongs to specific user."""
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return IMPL.lease_get_all_by_user(user_id)
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@to_dict
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def lease_get(lease_id):
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"""Return lease."""
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return IMPL.lease_get(lease_id)
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@to_dict
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def lease_list(project_id=None):
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"""Return a list of all existing leases."""
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return IMPL.lease_list(project_id)
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def lease_destroy(lease_id):
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"""Delete lease or raise if not exists."""
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IMPL.lease_destroy(lease_id)
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def lease_update(lease_id, lease_values):
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"""Update lease or raise if not exists."""
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IMPL.lease_update(lease_id, lease_values)
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# Events
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@to_dict
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def event_create(event_values):
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"""Create an event from values."""
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return IMPL.event_create(event_values)
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@to_dict
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def event_get_all():
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"""Return all events."""
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return IMPL.event_get_all()
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@to_dict
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def event_get(event_id):
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"""Return a specific event."""
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return IMPL.event_get(event_id)
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@to_dict
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def event_get_first_sorted_by_filters(sort_key, sort_dir, filters):
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"""Return instances sorted by param."""
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return IMPL.event_get_first_sorted_by_filters(sort_key, sort_dir,
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filters)
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@to_dict
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def event_get_all_sorted_by_filters(sort_key, sort_dir, filters):
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"""Return instances sorted by param."""
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return IMPL.event_get_all_sorted_by_filters(sort_key, sort_dir,
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filters)
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def event_destroy(event_id):
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"""Delete event or raise if not exists."""
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IMPL.event_destroy(event_id)
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def event_update(event_id, event_values):
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"""Update event or raise if not exists."""
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IMPL.event_update(event_id, event_values)
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# Host reservations
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def host_reservation_create(host_reservation_values):
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"""Create a host reservation from the values."""
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return IMPL.host_reservation_create(host_reservation_values)
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@to_dict
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def host_reservation_get_by_reservation_id(reservation_id):
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"""Return host reservation belonging to specific reservation."""
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return IMPL.host_reservation_get_by_reservation_id(reservation_id)
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@to_dict
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def host_reservation_get(host_reservation_id):
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"""Return specific host reservation."""
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return IMPL.host_reservation_get(host_reservation_id)
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@to_dict
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def host_reservation_get_all():
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"""Return all hosts reservations."""
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return IMPL.host_reservation_get_all()
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def host_reservation_destroy(host_reservation_id):
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"""Delete specific host reservation."""
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IMPL.host_reservation_destroy(host_reservation_id)
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def host_reservation_update(host_reservation_id,
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host_reservation_values):
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"""Update host reservation."""
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IMPL.host_reservation_update(host_reservation_id,
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host_reservation_values)
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# Allocation
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def host_allocation_create(allocation_values):
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"""Create an allocation from the values."""
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return IMPL.host_allocation_create(allocation_values)
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@to_dict
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def host_allocation_get_all_by_values(**kwargs):
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"""Returns all entries filtered by col=value."""
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return IMPL.host_allocation_get_all_by_values(**kwargs)
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# TODO(frossigneux) get methods
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def host_allocation_destroy(allocation_id):
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"""Delete specific allocation."""
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IMPL.host_allocation_destroy(allocation_id)
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def host_allocation_update(allocation_id, allocation_values):
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"""Update allocation."""
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IMPL.host_allocation_update(allocation_id, allocation_values)
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# Compute Hosts
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def host_create(values):
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"""Create a Compute host from the values."""
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return IMPL.host_create(values)
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@to_dict
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def host_get(host_id):
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"""Return a specific Compute host."""
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return IMPL.host_get(host_id)
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@to_dict
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def host_list():
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"""Return a list of events."""
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return IMPL.host_list()
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@to_dict
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def host_get_all_by_filters(filters):
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"""Returns Compute hosts filtered by name of the field."""
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return IMPL.host_get_all_by_filters(filters)
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@to_dict
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def host_get_all_by_queries(queries):
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"""Returns hosts filtered by an array of queries."""
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return IMPL.host_get_all_by_queries(queries)
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def host_destroy(host_id):
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"""Delete specific Compute host."""
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IMPL.host_destroy(host_id)
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def host_update(host_id, values):
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"""Update Compute host."""
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IMPL.host_update(host_id, values)
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# ComputeHostExtraCapabilities
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def host_extra_capability_create(values):
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"""Create a Host ExtraCapability from the values."""
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return IMPL.host_extra_capability_create(values)
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@to_dict
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def host_extra_capability_get(host_extra_capability_id):
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"""Return a specific Host Extracapability."""
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return IMPL.host_extra_capability_get(host_extra_capability_id)
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@to_dict
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def host_extra_capability_get_all_per_host(host_id):
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"""Return all extra_capabilities belonging to a specific Compute host."""
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return IMPL.host_extra_capability_get_all_per_host(host_id)
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def host_extra_capability_destroy(host_extra_capability_id):
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"""Delete specific host ExtraCapability."""
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IMPL.host_extra_capability_destroy(host_extra_capability_id)
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def host_extra_capability_update(host_extra_capability_id, values):
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"""Update specific host ExtraCapability."""
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IMPL.host_extra_capability_update(host_extra_capability_id, values)
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def host_extra_capability_get_all_per_name(host_id,
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extra_capability_name):
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return IMPL.host_extra_capability_get_all_per_name(host_id,
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extra_capability_name)
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# Host matching
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def host_get_all_by_queries_including_extracapabilities(queries):
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"""Returns hosts filtered by an array of queries."""
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return IMPL.host_get_all_by_queries_including_extracapabilities(queries)
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