quotas.py 8.03 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
# Copyright 2013 GRNET S.A. All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
#   1. Redistributions of source code must retain the above
#      copyright notice, this list of conditions and the following
#      disclaimer.
#
#   2. Redistributions in binary form must reproduce the above
#      copyright notice, this list of conditions and the following
#      disclaimer in the documentation and/or other materials
#      provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# The views and conclusions contained in the software and
# documentation are those of the authors and should not be
# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.

34
35
36
from astakos.im.models import (
    Resource, AstakosUserQuota, AstakosUser,
    Project, ProjectMembership, ProjectResourceGrant, ProjectApplication)
37
from astakos.quotaholder.callpoint import QuotaholderDjangoDBCallpoint
38
from django.db.models import Q
39
40
41
42
43
44
45

qh = QuotaholderDjangoDBCallpoint()


def from_holding(holding):
    limit, imported_min, imported_max = holding
    body = {'limit':       limit,
46
47
            'usage':       imported_max,
            'pending':     imported_max-imported_min,
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
            }
    return body


def limits_only(holding):
    limit, imported_min, imported_max = holding
    return limit


def transform_data(holdings, func=None):
    if func is None:
        func = from_holding

    quota = {}
    for (holder, source, resource), value in holdings.iteritems():
        holder_quota = quota.get(holder, {})
        source_quota = holder_quota.get(source, {})
        body = func(value)
        source_quota[resource] = body
        holder_quota[source] = source_quota
        quota[holder] = holder_quota
    return quota


72
def get_counters(users, resources=None, sources=None):
73
74
    uuids = [user.uuid for user in users]

75
76
77
    counters = qh.get_quota(holders=uuids,
                            resources=resources,
                            sources=sources)
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
    return counters


def get_users_quotas(users, resources=None, sources=None):
    counters = get_counters(users, resources, sources)
    quotas = transform_data(counters)
    return quotas


def get_users_quotas_and_limits(users, resources=None, sources=None):
    counters = get_counters(users, resources, sources)
    quotas = transform_data(counters)
    limits = transform_data(counters, limits_only)
    return quotas, limits


def get_user_quotas(user, resources=None, sources=None):
    quotas = get_users_quotas([user], resources, sources)
    return quotas[user.uuid]


99
def get_service_quotas(service, users=None):
100
101
    resources = Resource.objects.filter(service=service.name)
    resource_names = [r.name for r in resources]
102
    counters = qh.get_quota(holders=users, resources=resource_names)
103
104
105
    return transform_data(counters)


106
107
def set_user_quota(quotas):
    qh.set_holder_quota(quotas)
108
109


Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
def get_resources(resources=None, services=None):
    if resources is None:
        rs = Resource.objects.all()
    else:
        rs = Resource.objects.filter(name__in=resources)

    if services is not None:
        rs = rs.filter(service__in=services)

    resource_dict = {}
    for r in rs:
        resource_dict[r.full_name()] = r.get_info()

    return resource_dict


126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
def get_default_quota():
    _DEFAULT_QUOTA = {}
    resources = Resource.objects.select_related('service').all()
    for resource in resources:
        capacity = resource.uplimit
        _DEFAULT_QUOTA[resource.full_name()] = capacity

    return _DEFAULT_QUOTA


SYSTEM = 'system'


def initial_quotas(users):
    initial = {}
    default_quotas = get_default_quota()

    for user in users:
        uuid = user.uuid
        source_quota = {SYSTEM: dict(default_quotas)}
        initial[uuid] = source_quota

    objs = AstakosUserQuota.objects.select_related()
    orig_quotas = objs.filter(user__in=users)
    for user_quota in orig_quotas:
        uuid = user_quota.user.uuid
        user_init = initial.get(uuid, {})
153
        source_quota = user_init.get(SYSTEM, {})
154
        resource = user_quota.resource.full_name()
155
156
        source_quota[resource] = user_quota.capacity
        user_init[SYSTEM] = source_quota
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
        initial[uuid] = user_init

    return initial


def get_grant_source(grant):
    return SYSTEM


def users_quotas(users, initial=None):
    if initial is None:
        quotas = initial_quotas(users)
    else:
        quotas = copy.deepcopy(initial)

    ACTUALLY_ACCEPTED = ProjectMembership.ACTUALLY_ACCEPTED
    objs = ProjectMembership.objects.select_related('project', 'person')
    memberships = objs.filter(person__in=users,
                              state__in=ACTUALLY_ACCEPTED,
                              project__state=Project.APPROVED)

    project_ids = set(m.project_id for m in memberships)
    objs = ProjectApplication.objects.select_related('project')
    apps = objs.filter(project__in=project_ids)

    project_dict = {}
    for app in apps:
        project_dict[app.project] = app

    objs = ProjectResourceGrant.objects.select_related()
    grants = objs.filter(project_application__in=apps)

    for membership in memberships:
        uuid = membership.person.uuid
        userquotas = quotas.get(uuid, {})

        application = project_dict[membership.project]

        for grant in grants:
            if grant.project_application_id != application.id:
                continue

            source = get_grant_source(grant)
            source_quotas = userquotas.get(source, {})

            resource = grant.resource.full_name()
            prev = source_quotas.get(resource, 0)
            new = prev + grant.member_capacity
            source_quotas[resource] = new
            userquotas[source] = source_quotas
        quotas[uuid] = userquotas

    return quotas


def user_quotas(user):
    quotas = users_quotas([user])
    try:
        return quotas[user.uuid]
    except KeyError:
        raise ValueError("could not compute quotas")


220
221
222
223
224
225
226
227
228
229
230
231
232
def list_user_quotas(users):
    qh_quotas, qh_limits = get_users_quotas_and_limits(users)
    astakos_initial = initial_quotas(users)
    astakos_quotas = users_quotas(users)

    diff_quotas = {}
    for holder, local in astakos_quotas.iteritems():
        registered = qh_limits.get(holder, None)
        if local != registered:
            diff_quotas[holder] = dict(local)

    return (qh_limits, qh_quotas,
            astakos_initial, diff_quotas)
233
234
235


def qh_add_resource_limit(resource, diff):
236
237
238
239
240
241
    objs = AstakosUser.forupdate.filter(Q(email_verified=True) &
                                        ~Q(policy=resource))
    users = objs.select_for_update()
    uuids = [u.uuid for u in users]
    qh.add_resource_limit(holders=uuids, sources=[SYSTEM],
                          resources=[resource.name], diff=diff)
242
243
244
245
246
247


def qh_sync_new_resource(resource, limit):
    users = AstakosUser.forupdate.filter(
        email_verified=True).select_for_update()

248
    resource_name = resource.name
249
250
251
    data = []
    for user in users:
        uuid = user.uuid
252
        key = uuid, SYSTEM, resource_name
253
254
255
        data.append((key, limit))

    qh.set_quota(data)
256
257
258
259
260
261
262
263
264
265


def qh_sync_users(user_ids):
    users = AstakosUser.forupdate.filter(id__in=user_ids).select_for_update()
    astakos_quotas = users_quotas(list(users))
    set_user_quota(astakos_quotas)


def qh_sync_user(user_id):
    qh_sync_users([user_id])