root / snf-cyclades-app / synnefo / quotas / util.py @ 600a3d4d
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# Copyright 2012 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 django.db.models import Sum, Count |
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from synnefo.db.models import VirtualMachine, Network |
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from synnefo.quotas import get_quota_holder |
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from synnefo.lib.quotaholder.api.exception import NoEntityError |
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def get_db_holdings(users=None): |
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"""Get holdings from Cyclades DB."""
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holdings = {} |
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vms = VirtualMachine.objects |
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networks = Network.objects |
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if users:
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assert(type(users) is list) |
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vms = vms.filter(userid__in=users) |
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networks = networks.filter(userid__in=users) |
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# Get resources related with VMs
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vm_resources = vms.values("userid").annotate(num=Count("id"), |
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ram=Sum("flavor__ram"),
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cpu=Sum("flavor__cpu"),
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disk=Sum("flavor__disk"))
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for vm_res in vm_resources: |
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user = vm_res['userid']
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res = {"vm": vm_res["num"], |
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"cpu": vm_res["cpu"], |
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"disk": 1073741824 * vm_res["disk"], |
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"ram": 1048576 * vm_res["ram"]} |
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holdings[user] = res |
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# Get resources related with networks
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net_resources = networks.values("userid")\
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.annotate(num=Count("id"))
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for net_res in net_resources: |
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user = net_res['userid']
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if user not in holdings: |
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holdings[user] = {} |
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holdings[user]["network.private"] = net_res["num"] |
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return holdings
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def get_quotaholder_holdings(users=[]): |
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"""Get holdings from Quotaholder.
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If the entity for the user does not exist in quotaholder, no holding
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is returned.
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"""
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holdings = {} |
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with get_quota_holder() as qh: |
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for user in users: |
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try:
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(qh_holdings, _) = \ |
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qh.list_holdings(context={}, list_holdings=[(user, "1")])
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if not qh_holdings: |
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continue
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qh_holdings = qh_holdings[0]
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qh_holdings = filter(lambda x: x[1].startswith("cyclades."), |
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qh_holdings) |
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holdings[user] = dict(map(decode_holding, qh_holdings)) |
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except NoEntityError:
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pass
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return holdings
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def decode_holding(holding): |
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entity, resource, imported, exported, returned, released = \ |
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holding |
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res = resource.replace("cyclades.", "") |
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return (res, imported - exported + returned - released)
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