root / snf-astakos-app / astakos / quotaholder / callpoint.py @ b0727daf
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# Copyright 2012, 2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from astakos.quotaholder.exception import ( |
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QuotaholderError, |
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CorruptedError, InvalidDataError, |
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InvalidKeyError, NoEntityError, |
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NoQuantityError, NoCapacityError, |
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ExportLimitError, ImportLimitError, |
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DuplicateError) |
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from astakos.quotaholder.utils.newname import newname |
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from astakos.quotaholder.api import QH_PRACTICALLY_INFINITE |
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|
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from django.db.models import Q, Count |
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from .models import (Entity, Policy, Holding, |
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Commission, Provision, ProvisionLog, CallSerial, |
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now, |
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db_get_entity, db_get_holding, db_get_policy, |
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db_get_commission, db_filter_provision, db_get_callserial) |
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|
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|
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class QuotaholderDjangoDBCallpoint(object): |
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|
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def create_entity(self, context=None, create_entity=()): |
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rejected = [] |
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append = rejected.append |
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|
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for idx, (entity, owner, key, ownerkey) in enumerate(create_entity): |
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try:
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owner = Entity.objects.get(entity=owner, key=ownerkey) |
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except Entity.DoesNotExist:
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append(idx) |
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continue
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|
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try:
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e = Entity.objects.get(entity=entity) |
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append(idx) |
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except Entity.DoesNotExist:
|
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e = Entity.objects.create(entity=entity, |
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owner=owner, |
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key=key) |
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|
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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|
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def set_entity_key(self, context=None, set_entity_key=()): |
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rejected = [] |
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append = rejected.append |
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|
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for entity, key, newkey in set_entity_key: |
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try:
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e = db_get_entity(entity=entity, key=key, for_update=True)
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except Entity.DoesNotExist:
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append(entity) |
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continue
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|
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e.key = newkey |
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e.save() |
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|
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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|
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def list_entities(self, context=None, entity=None, key=None): |
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try:
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e = Entity.objects.get(entity=entity, key=key) |
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except Entity.DoesNotExist:
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m = "Entity '%s' does not exist" % (entity,)
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raise NoEntityError(m)
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children = e.entities.all() |
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entities = [e.entity for e in children] |
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return entities
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|
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def get_entity(self, context=None, get_entity=()): |
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entities = [] |
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append = entities.append |
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|
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names = [entity for entity, key in get_entity] |
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es = Entity.objects.select_related(depth=1).filter(entity__in=names)
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data = {} |
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for e in es: |
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data[e.entity] = e |
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for entity, key in get_entity: |
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e = data.get(entity, None)
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if e is None or e.key != key: |
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continue
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append((entity, e.owner.entity)) |
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return entities
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|
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def get_limits(self, context=None, get_limits=()): |
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limits = [] |
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append = limits.append |
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for policy in get_limits: |
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try:
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p = Policy.objects.get(policy=policy) |
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except Policy.DoesNotExist:
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continue
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append((policy, p.quantity, p.capacity, |
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p.import_limit, p.export_limit)) |
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return limits
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def set_limits(self, context=None, set_limits=()): |
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|
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for (policy, quantity, capacity,
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import_limit, export_limit) in set_limits:
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try:
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policy = db_get_policy(policy=policy, for_update=True)
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except Policy.DoesNotExist:
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Policy.objects.create(policy=policy, |
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quantity=quantity, |
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capacity=capacity, |
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import_limit=import_limit, |
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export_limit=export_limit) |
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else:
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policy.quantity = quantity |
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policy.capacity = capacity |
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policy.export_limit = export_limit |
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policy.import_limit = import_limit |
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policy.save() |
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return ()
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def get_holding(self, context=None, get_holding=()): |
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holdings = [] |
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append = holdings.append |
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for entity, resource, key in get_holding: |
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try:
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h = Holding.objects.get(entity=entity, resource=resource) |
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except Holding.DoesNotExist:
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continue
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if h.entity.key != key:
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continue
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append((h.entity.entity, h.resource, h.policy.policy, |
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h.imported, h.exported, |
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h.returned, h.released, h.flags)) |
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return holdings
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def set_holding(self, context=None, set_holding=()): |
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rejected = [] |
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append = rejected.append |
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for entity, resource, key, policy, flags in set_holding: |
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try:
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e = Entity.objects.get(entity=entity, key=key) |
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except Entity.DoesNotExist:
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append((entity, resource, policy)) |
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continue
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if e.key != key:
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append((entity, resource, policy)) |
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continue
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try:
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p = Policy.objects.get(policy=policy) |
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except Policy.DoesNotExist:
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append((entity, resource, policy)) |
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continue
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try:
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h = db_get_holding(entity=entity, resource=resource, |
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for_update=True)
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h.policy = p |
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h.flags = flags |
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h.save() |
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except Holding.DoesNotExist:
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h = Holding.objects.create(entity=e, resource=resource, |
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policy=p, flags=flags) |
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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def _init_holding(self, |
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entity, resource, policy, |
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imported, exported, returned, released, |
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flags): |
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try:
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h = db_get_holding(entity=entity, resource=resource, |
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for_update=True)
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except Holding.DoesNotExist:
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h = Holding(entity=entity, resource=resource) |
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h.policy = policy |
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h.flags = flags |
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h.imported = imported |
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h.importing = imported |
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h.exported = exported |
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h.exporting = exported |
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h.returned = returned |
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h.returning = returned |
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h.released = released |
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h.releasing = released |
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h.save() |
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def init_holding(self, context=None, init_holding=()): |
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rejected = [] |
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append = rejected.append |
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for idx, sfh in enumerate(init_holding): |
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(entity, resource, key, policy, |
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imported, exported, returned, released, |
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flags) = sfh |
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try:
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e = Entity.objects.get(entity=entity, key=key) |
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except Entity.DoesNotExist:
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append(idx) |
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continue
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if e.key != key:
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append(idx) |
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continue
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try:
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p = Policy.objects.get(policy=policy) |
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except Policy.DoesNotExist:
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append(idx) |
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continue
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self._init_holding(e, resource, p,
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imported, exported, |
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returned, released, |
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flags) |
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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|
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def reset_holding(self, context=None, reset_holding=()): |
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rejected = [] |
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append = rejected.append |
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for idx, tpl in enumerate(reset_holding): |
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(entity, resource, key, |
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imported, exported, returned, released) = tpl |
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try:
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e = Entity.objects.get(entity=entity, key=key) |
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except Entity.DoesNotExist:
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append(idx) |
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continue
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|
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try:
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h = db_get_holding(entity=entity, resource=resource, |
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for_update=True)
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h.imported = imported |
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h.importing = imported |
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h.exported = exported |
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h.exporting = exported |
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h.returned = returned |
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h.returning = returned |
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h.released = released |
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h.releasing = released |
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h.save() |
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except Holding.DoesNotExist:
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append(idx) |
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continue
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|
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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|
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def _check_pending(self, entity, resource): |
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cs = Commission.objects.filter(entity=entity) |
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cs = [c for c in cs if c.provisions.filter(resource=resource)] |
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as_target = [c.serial for c in cs] |
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ps = Provision.objects.filter(entity=entity, resource=resource) |
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as_source = [p.serial.serial for p in ps] |
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return as_target + as_source
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|
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def _actual_quantity(self, holding): |
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hp = holding.policy |
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return hp.quantity + (holding.imported + holding.returned -
|
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holding.exported - holding.released) |
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|
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def _new_policy_name(self): |
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return newname('policy_') |
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|
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def _increase_resource(self, entity, resource, amount): |
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try:
|
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h = db_get_holding(entity=entity, resource=resource, |
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for_update=True)
|
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except Holding.DoesNotExist:
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h = Holding(entity=entity, resource=resource) |
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p = Policy.objects.create(policy=self._new_policy_name(),
|
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quantity=0,
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capacity=QH_PRACTICALLY_INFINITE, |
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import_limit=QH_PRACTICALLY_INFINITE, |
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export_limit=QH_PRACTICALLY_INFINITE) |
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h.policy = p |
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h.imported += amount |
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h.save() |
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|
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def release_holding(self, context=None, release_holding=()): |
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rejected = [] |
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append = rejected.append |
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|
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for idx, (entity, resource, key) in enumerate(release_holding): |
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try:
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h = db_get_holding(entity=entity, resource=resource, |
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for_update=True)
|
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except Holding.DoesNotExist:
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append(idx) |
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continue
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|
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if h.entity.key != key:
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append(idx) |
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continue
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|
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if self._check_pending(entity, resource): |
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append(idx) |
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continue
|
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|
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q = self._actual_quantity(h)
|
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if q > 0: |
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owner = h.entity.owner |
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self._increase_resource(owner, resource, q)
|
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|
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h.delete() |
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|
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if rejected:
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raise QuotaholderError(rejected)
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return rejected
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|
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def list_resources(self, context=None, entity=None, key=None): |
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try:
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e = Entity.objects.get(entity=entity) |
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except Entity.DoesNotExist:
|
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m = "No such entity '%s'" % (entity,)
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raise NoEntityError(m)
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|
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if e.key != key:
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m = "Invalid key for entity '%s'" % (entity,)
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raise InvalidKeyError(m)
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|
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holdings = e.holding_set.filter(entity=entity) |
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resources = [h.resource for h in holdings] |
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return resources
|
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|
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def list_holdings(self, context=None, list_holdings=()): |
383 |
rejected = [] |
384 |
reject = rejected.append |
385 |
holdings_list = [] |
386 |
append = holdings_list.append |
387 |
|
388 |
for entity, key in list_holdings: |
389 |
try:
|
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e = Entity.objects.get(entity=entity) |
391 |
if e.key != key:
|
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raise Entity.DoesNotExist("wrong key") |
393 |
except Entity.DoesNotExist:
|
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reject(entity) |
395 |
continue
|
396 |
|
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holdings = e.holding_set.filter(entity=entity) |
398 |
append([[entity, h.resource, |
399 |
h.imported, h.exported, h.returned, h.released] |
400 |
for h in holdings]) |
401 |
|
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return holdings_list, rejected
|
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|
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def get_quota(self, context=None, get_quota=()): |
405 |
quotas = [] |
406 |
append = quotas.append |
407 |
|
408 |
entities = set(e for e, r, k in get_quota) |
409 |
hs = Holding.objects.select_related().filter(entity__in=entities) |
410 |
holdings = {} |
411 |
for h in hs: |
412 |
holdings[(h.entity_id, h.resource)] = h |
413 |
|
414 |
for entity, resource, key in get_quota: |
415 |
try:
|
416 |
h = holdings[(entity, resource)] |
417 |
except:
|
418 |
continue
|
419 |
|
420 |
if h.entity.key != key:
|
421 |
continue
|
422 |
|
423 |
p = h.policy |
424 |
|
425 |
append((h.entity.entity, h.resource, p.quantity, p.capacity, |
426 |
p.import_limit, p.export_limit, |
427 |
h.imported, h.exported, |
428 |
h.returned, h.released, |
429 |
h.flags)) |
430 |
|
431 |
return quotas
|
432 |
|
433 |
def set_quota(self, context=None, set_quota=()): |
434 |
rejected = [] |
435 |
append = rejected.append |
436 |
|
437 |
q_holdings = Q() |
438 |
entities = [] |
439 |
for (entity, resource, key, _, _, _, _, _) in set_quota: |
440 |
entities.append(entity) |
441 |
|
442 |
hs = Holding.objects.filter(entity__in=entities).select_for_update() |
443 |
holdings = {} |
444 |
for h in hs: |
445 |
holdings[(h.entity_id, h.resource)] = h |
446 |
|
447 |
entities = Entity.objects.in_bulk(entities) |
448 |
|
449 |
old_policies = [] |
450 |
|
451 |
for (entity, resource, key,
|
452 |
quantity, capacity, |
453 |
import_limit, export_limit, flags) in set_quota:
|
454 |
|
455 |
e = entities.get(entity, None)
|
456 |
if e is None or e.key != key: |
457 |
append((entity, resource)) |
458 |
continue
|
459 |
|
460 |
policy = newname('policy_')
|
461 |
newp = Policy(policy=policy, |
462 |
quantity=quantity, |
463 |
capacity=capacity, |
464 |
import_limit=import_limit, |
465 |
export_limit=export_limit) |
466 |
|
467 |
try:
|
468 |
h = holdings[(entity, resource)] |
469 |
old_policies.append(h.policy_id) |
470 |
h.policy = newp |
471 |
h.flags = flags |
472 |
except KeyError: |
473 |
h = Holding(entity=e, resource=resource, |
474 |
policy=newp, flags=flags) |
475 |
|
476 |
# the order is intentionally reversed so that it
|
477 |
# would break if we are not within a transaction.
|
478 |
# Has helped before.
|
479 |
h.save() |
480 |
newp.save() |
481 |
holdings[(entity, resource)] = h |
482 |
|
483 |
objs = Policy.objects.annotate(refs=Count('holding'))
|
484 |
objs.filter(policy__in=old_policies, refs=0).delete()
|
485 |
|
486 |
if rejected:
|
487 |
raise QuotaholderError(rejected)
|
488 |
return rejected
|
489 |
|
490 |
def add_quota(self, |
491 |
context=None, clientkey=None, serial=None, |
492 |
sub_quota=(), add_quota=()): |
493 |
rejected = [] |
494 |
append = rejected.append |
495 |
|
496 |
if serial is not None: |
497 |
if clientkey is None: |
498 |
all_pairs = [(q[0], q[1]) for q in sub_quota + add_quota] |
499 |
raise QuotaholderError(all_pairs)
|
500 |
try:
|
501 |
cs = CallSerial.objects.get(serial=serial, clientkey=clientkey) |
502 |
all_pairs = [(q[0], q[1]) for q in sub_quota + add_quota] |
503 |
raise QuotaholderError(all_pairs)
|
504 |
except CallSerial.DoesNotExist:
|
505 |
pass
|
506 |
|
507 |
sources = sub_quota + add_quota |
508 |
q_holdings = Q() |
509 |
entities = [] |
510 |
for (entity, resource, key, _, _, _, _) in sources: |
511 |
entities.append(entity) |
512 |
|
513 |
hs = Holding.objects.filter(entity__in=entities).select_for_update() |
514 |
holdings = {} |
515 |
for h in hs: |
516 |
holdings[(h.entity_id, h.resource)] = h |
517 |
|
518 |
entities = Entity.objects.in_bulk(entities) |
519 |
|
520 |
pids = [h.policy_id for h in hs] |
521 |
policies = Policy.objects.in_bulk(pids) |
522 |
|
523 |
old_policies = [] |
524 |
|
525 |
for removing, source in [(True, sub_quota), (False, add_quota)]: |
526 |
for (entity, resource, key,
|
527 |
quantity, capacity, |
528 |
import_limit, export_limit) in source:
|
529 |
|
530 |
e = entities.get(entity, None)
|
531 |
if e is None or e.key != key: |
532 |
append((entity, resource)) |
533 |
continue
|
534 |
|
535 |
try:
|
536 |
h = holdings[(entity, resource)] |
537 |
old_policies.append(h.policy_id) |
538 |
try:
|
539 |
p = policies[h.policy_id] |
540 |
except KeyError: |
541 |
raise AssertionError("no policy %s" % h.policy_id) |
542 |
except KeyError: |
543 |
if removing:
|
544 |
append((entity, resource)) |
545 |
continue
|
546 |
h = Holding(entity=e, resource=resource, flags=0)
|
547 |
p = None
|
548 |
|
549 |
policy = newname('policy_')
|
550 |
newp = Policy(policy=policy) |
551 |
|
552 |
newp.quantity = _add(p.quantity if p else 0, quantity, |
553 |
invert=removing) |
554 |
newp.capacity = _add(p.capacity if p else 0, capacity, |
555 |
invert=removing) |
556 |
newp.import_limit = _add(p.import_limit if p else 0, |
557 |
import_limit, invert=removing) |
558 |
newp.export_limit = _add(p.export_limit if p else 0, |
559 |
export_limit, invert=removing) |
560 |
|
561 |
new_values = [newp.capacity, |
562 |
newp.import_limit, newp.export_limit] |
563 |
if any(map(_isneg, new_values)): |
564 |
append((entity, resource)) |
565 |
continue
|
566 |
|
567 |
h.policy = newp |
568 |
|
569 |
# the order is intentionally reversed so that it
|
570 |
# would break if we are not within a transaction.
|
571 |
# Has helped before.
|
572 |
h.save() |
573 |
newp.save() |
574 |
policies[policy] = newp |
575 |
holdings[(entity, resource)] = h |
576 |
|
577 |
objs = Policy.objects.annotate(refs=Count('holding'))
|
578 |
objs.filter(policy__in=old_policies, refs=0).delete()
|
579 |
|
580 |
if rejected:
|
581 |
raise QuotaholderError(rejected)
|
582 |
|
583 |
if serial is not None and clientkey is not None: |
584 |
CallSerial.objects.create(serial=serial, clientkey=clientkey) |
585 |
return rejected
|
586 |
|
587 |
def ack_serials(self, context=None, clientkey=None, serials=()): |
588 |
if clientkey is None: |
589 |
return
|
590 |
|
591 |
for serial in serials: |
592 |
try:
|
593 |
c = db_get_callserial(clientkey=clientkey, |
594 |
serial=serial, |
595 |
for_update=True)
|
596 |
c.delete() |
597 |
except CallSerial.DoesNotExist:
|
598 |
pass
|
599 |
return
|
600 |
|
601 |
def query_serials(self, context=None, clientkey=None, serials=()): |
602 |
result = [] |
603 |
append = result.append |
604 |
|
605 |
if clientkey is None: |
606 |
return result
|
607 |
|
608 |
if not serials: |
609 |
cs = CallSerial.objects.filter(clientkey=clientkey) |
610 |
return [c.serial for c in cs] |
611 |
|
612 |
for serial in serials: |
613 |
try:
|
614 |
db_get_callserial(clientkey=clientkey, serial=serial) |
615 |
append(serial) |
616 |
except CallSerial.DoesNotExist:
|
617 |
pass
|
618 |
|
619 |
return result
|
620 |
|
621 |
def issue_commission(self, |
622 |
context=None,
|
623 |
clientkey=None,
|
624 |
target=None,
|
625 |
key=None,
|
626 |
name=None,
|
627 |
provisions=()): |
628 |
|
629 |
try:
|
630 |
t = Entity.objects.get(entity=target) |
631 |
except Entity.DoesNotExist:
|
632 |
m = "No target entity '%s'" % (target,)
|
633 |
raise NoEntityError(m)
|
634 |
else:
|
635 |
if t.key != key:
|
636 |
m = "Invalid key for target entity '%s'" % (target,)
|
637 |
raise InvalidKeyError(m)
|
638 |
|
639 |
create = Commission.objects.create |
640 |
commission = create(entity_id=target, clientkey=clientkey, name=name) |
641 |
serial = commission.serial |
642 |
|
643 |
checked = [] |
644 |
for entity, resource, quantity in provisions: |
645 |
|
646 |
if entity == target:
|
647 |
m = "Cannot issue commission from an entity to itself (%s)" % (
|
648 |
entity,) |
649 |
raise InvalidDataError(m)
|
650 |
|
651 |
ent_res = entity, resource |
652 |
if ent_res in checked: |
653 |
m = "Duplicate provision for %s.%s" % ent_res
|
654 |
raise DuplicateError(m)
|
655 |
checked.append(ent_res) |
656 |
|
657 |
try:
|
658 |
e = Entity.objects.get(entity=entity) |
659 |
except Entity.DoesNotExist:
|
660 |
m = "No source entity '%s'" % (entity,)
|
661 |
raise NoEntityError(m)
|
662 |
|
663 |
release = 0
|
664 |
if quantity < 0: |
665 |
release = 1
|
666 |
|
667 |
# Source limits checks
|
668 |
try:
|
669 |
h = db_get_holding(entity=entity, resource=resource, |
670 |
for_update=True)
|
671 |
except Holding.DoesNotExist:
|
672 |
m = ("There is no quantity "
|
673 |
"to allocate from in %s.%s" % (entity, resource))
|
674 |
raise NoQuantityError(m,
|
675 |
source=entity, target=target, |
676 |
resource=resource, requested=quantity, |
677 |
current=0, limit=0) |
678 |
|
679 |
hp = h.policy |
680 |
|
681 |
if not release: |
682 |
current = h.exporting |
683 |
limit = hp.export_limit |
684 |
if current + quantity > limit:
|
685 |
m = ("Export limit reached for %s.%s" % (entity, resource))
|
686 |
raise ExportLimitError(m,
|
687 |
source=entity, |
688 |
target=target, |
689 |
resource=resource, |
690 |
requested=quantity, |
691 |
current=current, |
692 |
limit=limit) |
693 |
|
694 |
limit = hp.quantity + h.imported - h.releasing |
695 |
unavailable = h.exporting - h.returned |
696 |
available = limit - unavailable |
697 |
|
698 |
if quantity > available:
|
699 |
m = ("There is not enough quantity "
|
700 |
"to allocate from in %s.%s" % (entity, resource))
|
701 |
raise NoQuantityError(m,
|
702 |
source=entity, |
703 |
target=target, |
704 |
resource=resource, |
705 |
requested=quantity, |
706 |
current=unavailable, |
707 |
limit=limit) |
708 |
else:
|
709 |
current = (+ h.importing + h.returning |
710 |
- h.exported - h.returned) |
711 |
limit = hp.capacity |
712 |
if current - quantity > limit:
|
713 |
m = ("There is not enough capacity "
|
714 |
"to release to in %s.%s" % (entity, resource))
|
715 |
raise NoQuantityError(m,
|
716 |
source=entity, |
717 |
target=target, |
718 |
resource=resource, |
719 |
requested=quantity, |
720 |
current=current, |
721 |
limit=limit) |
722 |
|
723 |
# Target limits checks
|
724 |
try:
|
725 |
th = db_get_holding(entity=target, resource=resource, |
726 |
for_update=True)
|
727 |
except Holding.DoesNotExist:
|
728 |
m = ("There is no capacity "
|
729 |
"to allocate into in %s.%s" % (target, resource))
|
730 |
raise NoCapacityError(m,
|
731 |
source=entity, |
732 |
target=target, |
733 |
resource=resource, |
734 |
requested=quantity, |
735 |
current=0,
|
736 |
limit=0)
|
737 |
|
738 |
tp = th.policy |
739 |
|
740 |
if not release: |
741 |
limit = tp.import_limit |
742 |
current = th.importing |
743 |
if current + quantity > limit:
|
744 |
m = ("Import limit reached for %s.%s" % (target, resource))
|
745 |
raise ImportLimitError(m,
|
746 |
source=entity, |
747 |
target=target, |
748 |
resource=resource, |
749 |
requested=quantity, |
750 |
current=current, |
751 |
limit=limit) |
752 |
|
753 |
limit = tp.quantity + tp.capacity |
754 |
current = (+ th.importing + th.returning + tp.quantity |
755 |
- th.exported - th.released) |
756 |
|
757 |
if current + quantity > limit:
|
758 |
m = ("There is not enough capacity "
|
759 |
"to allocate into in %s.%s" % (target, resource))
|
760 |
raise NoCapacityError(m,
|
761 |
source=entity, |
762 |
target=target, |
763 |
resource=resource, |
764 |
requested=quantity, |
765 |
current=current, |
766 |
limit=limit) |
767 |
else:
|
768 |
limit = tp.quantity + th.imported - th.releasing |
769 |
unavailable = th.exporting - th.returned |
770 |
available = limit - unavailable |
771 |
|
772 |
if available + quantity < 0: |
773 |
m = ("There is not enough quantity "
|
774 |
"to release from in %s.%s" % (target, resource))
|
775 |
raise NoCapacityError(m,
|
776 |
source=entity, |
777 |
target=target, |
778 |
resource=resource, |
779 |
requested=quantity, |
780 |
current=unavailable, |
781 |
limit=limit) |
782 |
|
783 |
Provision.objects.create(serial=commission, |
784 |
entity=e, |
785 |
resource=resource, |
786 |
quantity=quantity) |
787 |
if release:
|
788 |
h.returning -= quantity |
789 |
th.releasing -= quantity |
790 |
else:
|
791 |
h.exporting += quantity |
792 |
th.importing += quantity |
793 |
|
794 |
h.save() |
795 |
th.save() |
796 |
|
797 |
return serial
|
798 |
|
799 |
def _log_provision(self, |
800 |
commission, s_holding, t_holding, |
801 |
provision, log_time, reason): |
802 |
|
803 |
s_entity = s_holding.entity |
804 |
s_policy = s_holding.policy |
805 |
t_entity = t_holding.entity |
806 |
t_policy = t_holding.policy |
807 |
|
808 |
kwargs = { |
809 |
'serial': commission.serial,
|
810 |
'name': commission.name,
|
811 |
'source': s_entity.entity,
|
812 |
'target': t_entity.entity,
|
813 |
'resource': provision.resource,
|
814 |
'source_quantity': s_policy.quantity,
|
815 |
'source_capacity': s_policy.capacity,
|
816 |
'source_import_limit': s_policy.import_limit,
|
817 |
'source_export_limit': s_policy.export_limit,
|
818 |
'source_imported': s_holding.imported,
|
819 |
'source_exported': s_holding.exported,
|
820 |
'source_returned': s_holding.returned,
|
821 |
'source_released': s_holding.released,
|
822 |
'target_quantity': t_policy.quantity,
|
823 |
'target_capacity': t_policy.capacity,
|
824 |
'target_import_limit': t_policy.import_limit,
|
825 |
'target_export_limit': t_policy.export_limit,
|
826 |
'target_imported': t_holding.imported,
|
827 |
'target_exported': t_holding.exported,
|
828 |
'target_returned': t_holding.returned,
|
829 |
'target_released': t_holding.released,
|
830 |
'delta_quantity': provision.quantity,
|
831 |
'issue_time': commission.issue_time,
|
832 |
'log_time': log_time,
|
833 |
'reason': reason,
|
834 |
} |
835 |
|
836 |
ProvisionLog.objects.create(**kwargs) |
837 |
|
838 |
def accept_commission(self, |
839 |
context=None, clientkey=None, |
840 |
serials=(), reason=''):
|
841 |
log_time = now() |
842 |
|
843 |
for serial in serials: |
844 |
try:
|
845 |
c = db_get_commission(clientkey=clientkey, serial=serial, |
846 |
for_update=True)
|
847 |
except Commission.DoesNotExist:
|
848 |
return
|
849 |
|
850 |
t = c.entity |
851 |
|
852 |
provisions = db_filter_provision(serial=serial, for_update=True)
|
853 |
for pv in provisions: |
854 |
try:
|
855 |
h = db_get_holding(entity=pv.entity.entity, |
856 |
resource=pv.resource, for_update=True)
|
857 |
th = db_get_holding(entity=t, resource=pv.resource, |
858 |
for_update=True)
|
859 |
except Holding.DoesNotExist:
|
860 |
m = "Corrupted provision"
|
861 |
raise CorruptedError(m)
|
862 |
|
863 |
quantity = pv.quantity |
864 |
release = 0
|
865 |
if quantity < 0: |
866 |
release = 1
|
867 |
|
868 |
if release:
|
869 |
h.returned -= quantity |
870 |
th.released -= quantity |
871 |
else:
|
872 |
h.exported += quantity |
873 |
th.imported += quantity |
874 |
|
875 |
reason = 'ACCEPT:' + reason[-121:] |
876 |
self._log_provision(c, h, th, pv, log_time, reason)
|
877 |
h.save() |
878 |
th.save() |
879 |
pv.delete() |
880 |
c.delete() |
881 |
|
882 |
return
|
883 |
|
884 |
def reject_commission(self, |
885 |
context=None, clientkey=None, |
886 |
serials=(), reason=''):
|
887 |
log_time = now() |
888 |
|
889 |
for serial in serials: |
890 |
try:
|
891 |
c = db_get_commission(clientkey=clientkey, serial=serial, |
892 |
for_update=True)
|
893 |
except Commission.DoesNotExist:
|
894 |
return
|
895 |
|
896 |
t = c.entity |
897 |
|
898 |
provisions = db_filter_provision(serial=serial, for_update=True)
|
899 |
for pv in provisions: |
900 |
try:
|
901 |
h = db_get_holding(entity=pv.entity.entity, |
902 |
resource=pv.resource, for_update=True)
|
903 |
th = db_get_holding(entity=t, resource=pv.resource, |
904 |
for_update=True)
|
905 |
except Holding.DoesNotExist:
|
906 |
m = "Corrupted provision"
|
907 |
raise CorruptedError(m)
|
908 |
|
909 |
quantity = pv.quantity |
910 |
release = 0
|
911 |
if quantity < 0: |
912 |
release = 1
|
913 |
|
914 |
if release:
|
915 |
h.returning += quantity |
916 |
th.releasing += quantity |
917 |
else:
|
918 |
h.exporting -= quantity |
919 |
th.importing -= quantity |
920 |
|
921 |
reason = 'REJECT:' + reason[-121:] |
922 |
self._log_provision(c, h, th, pv, log_time, reason)
|
923 |
h.save() |
924 |
th.save() |
925 |
pv.delete() |
926 |
c.delete() |
927 |
|
928 |
return
|
929 |
|
930 |
def get_pending_commissions(self, context=None, clientkey=None): |
931 |
pending = Commission.objects.filter(clientkey=clientkey) |
932 |
pending_list = pending.values_list('serial', flat=True) |
933 |
return pending_list
|
934 |
|
935 |
def resolve_pending_commissions(self, |
936 |
context=None, clientkey=None, |
937 |
max_serial=None, accept_set=()):
|
938 |
accept_set = set(accept_set)
|
939 |
pending = self.get_pending_commissions(context=context,
|
940 |
clientkey=clientkey) |
941 |
pending = sorted(pending)
|
942 |
|
943 |
accept = self.accept_commission
|
944 |
reject = self.reject_commission
|
945 |
|
946 |
for serial in pending: |
947 |
if serial > max_serial:
|
948 |
break
|
949 |
|
950 |
if serial in accept_set: |
951 |
accept(context=context, clientkey=clientkey, serials=[serial]) |
952 |
else:
|
953 |
reject(context=context, clientkey=clientkey, serials=[serial]) |
954 |
|
955 |
return
|
956 |
|
957 |
def release_entity(self, context=None, release_entity=()): |
958 |
rejected = [] |
959 |
append = rejected.append |
960 |
for entity, key in release_entity: |
961 |
try:
|
962 |
e = db_get_entity(entity=entity, key=key, for_update=True)
|
963 |
except Entity.DoesNotExist:
|
964 |
append(entity) |
965 |
continue
|
966 |
|
967 |
if e.entities.count() != 0: |
968 |
append(entity) |
969 |
continue
|
970 |
|
971 |
if e.holding_set.count() != 0: |
972 |
append(entity) |
973 |
continue
|
974 |
|
975 |
e.delete() |
976 |
|
977 |
if rejected:
|
978 |
raise QuotaholderError(rejected)
|
979 |
return rejected
|
980 |
|
981 |
def get_timeline(self, context=None, after="", before="Z", get_timeline=()): |
982 |
entity_set = set()
|
983 |
e_add = entity_set.add |
984 |
resource_set = set()
|
985 |
r_add = resource_set.add |
986 |
|
987 |
for entity, resource, key in get_timeline: |
988 |
if entity not in entity_set: |
989 |
try:
|
990 |
e = Entity.objects.get(entity=entity, key=key) |
991 |
e_add(entity) |
992 |
except Entity.DoesNotExist:
|
993 |
continue
|
994 |
|
995 |
r_add((entity, resource)) |
996 |
|
997 |
chunk_size = 65536
|
998 |
nr = 0
|
999 |
timeline = [] |
1000 |
append = timeline.append |
1001 |
filterlogs = ProvisionLog.objects.filter |
1002 |
if entity_set:
|
1003 |
q_entity = Q(source__in=entity_set) | Q(target__in=entity_set) |
1004 |
else:
|
1005 |
q_entity = Q() |
1006 |
|
1007 |
while 1: |
1008 |
logs = filterlogs(q_entity, |
1009 |
issue_time__gt=after, |
1010 |
issue_time__lte=before, |
1011 |
reason__startswith='ACCEPT:')
|
1012 |
|
1013 |
logs = logs.order_by('issue_time')
|
1014 |
#logs = logs.values()
|
1015 |
logs = logs[:chunk_size] |
1016 |
nr += len(logs)
|
1017 |
if not logs: |
1018 |
break
|
1019 |
for g in logs: |
1020 |
if ((g.source, g.resource) not in resource_set |
1021 |
or (g.target, g.resource) not in resource_set): |
1022 |
continue
|
1023 |
|
1024 |
o = { |
1025 |
'serial': g.serial,
|
1026 |
'source': g.source,
|
1027 |
'target': g.target,
|
1028 |
'resource': g.resource,
|
1029 |
'name': g.name,
|
1030 |
'quantity': g.delta_quantity,
|
1031 |
'source_allocated': g.source_allocated(),
|
1032 |
'source_allocated_through': g.source_allocated_through(),
|
1033 |
'source_inbound': g.source_inbound(),
|
1034 |
'source_inbound_through': g.source_inbound_through(),
|
1035 |
'source_outbound': g.source_outbound(),
|
1036 |
'source_outbound_through': g.source_outbound_through(),
|
1037 |
'target_allocated': g.target_allocated(),
|
1038 |
'target_allocated_through': g.target_allocated_through(),
|
1039 |
'target_inbound': g.target_inbound(),
|
1040 |
'target_inbound_through': g.target_inbound_through(),
|
1041 |
'target_outbound': g.target_outbound(),
|
1042 |
'target_outbound_through': g.target_outbound_through(),
|
1043 |
'issue_time': g.issue_time,
|
1044 |
'log_time': g.log_time,
|
1045 |
'reason': g.reason,
|
1046 |
} |
1047 |
|
1048 |
append(o) |
1049 |
|
1050 |
after = g.issue_time |
1051 |
if after >= before:
|
1052 |
break
|
1053 |
|
1054 |
return timeline
|
1055 |
|
1056 |
|
1057 |
def _add(x, y, invert=False): |
1058 |
return x + y if not invert else x - y |
1059 |
|
1060 |
|
1061 |
def _isneg(x): |
1062 |
return x < 0 |
1063 |
|
1064 |
|
1065 |
API_Callpoint = QuotaholderDjangoDBCallpoint |