root / snf-astakos-app / astakos / im / endpoints / qh.py @ 0ea1f32b
History | View | Annotate | Download (8.3 kB)
1 |
# Copyright 2011-2012 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
import logging |
35 |
import itertools |
36 |
|
37 |
from functools import wraps |
38 |
|
39 |
from django.utils.translation import ugettext as _ |
40 |
|
41 |
from astakos.im.settings import ( |
42 |
QUOTAHOLDER_URL, QUOTAHOLDER_TOKEN, LOGGING_LEVEL) |
43 |
|
44 |
if QUOTAHOLDER_URL:
|
45 |
from kamaki.clients.quotaholder import QuotaholderClient |
46 |
|
47 |
ENTITY_KEY = '1'
|
48 |
|
49 |
inf = float('inf') |
50 |
|
51 |
logger = logging.getLogger(__name__) |
52 |
|
53 |
inf = float('inf') |
54 |
|
55 |
def call(func_name): |
56 |
"""Decorator function for Quotaholder client calls."""
|
57 |
def decorator(payload_func): |
58 |
@wraps(payload_func)
|
59 |
def wrapper(entities=(), client=None, **kwargs): |
60 |
if not entities: |
61 |
return client, ()
|
62 |
|
63 |
if not QUOTAHOLDER_URL: |
64 |
return client, ()
|
65 |
|
66 |
c = client or QuotaholderClient(QUOTAHOLDER_URL, token=QUOTAHOLDER_TOKEN)
|
67 |
func = c.__dict__.get(func_name) |
68 |
if not func: |
69 |
return c, ()
|
70 |
|
71 |
data = payload_func(entities, client, **kwargs) |
72 |
if not data: |
73 |
return c, data
|
74 |
|
75 |
funcname = func.__name__ |
76 |
kwargs = {'context': {}, funcname: data}
|
77 |
rejected = func(**kwargs) |
78 |
msg = _('%s: %s - Rejected: %s' % (funcname, data, rejected,))
|
79 |
logger.log(LOGGING_LEVEL, msg) |
80 |
return c, rejected
|
81 |
return wrapper
|
82 |
return decorator
|
83 |
|
84 |
|
85 |
@call('set_quota') |
86 |
def send_quota(users, client=None): |
87 |
data = [] |
88 |
append = data.append |
89 |
for user in users: |
90 |
for resource, uplimit in user.quota.iteritems(): |
91 |
key = ENTITY_KEY |
92 |
quantity = None
|
93 |
capacity = uplimit if uplimit != inf else None |
94 |
import_limit = None
|
95 |
export_limit = None
|
96 |
flags = 0
|
97 |
args = ( |
98 |
user.email, resource, key, quantity, capacity, import_limit, |
99 |
export_limit, flags) |
100 |
append(args) |
101 |
return data
|
102 |
|
103 |
|
104 |
@call('set_quota') |
105 |
def send_resource_quantities(resources, client=None): |
106 |
data = [] |
107 |
append = data.append |
108 |
for resource in resources: |
109 |
key = ENTITY_KEY |
110 |
quantity = resource.meta.filter(key='quantity') or None |
111 |
capacity = None
|
112 |
import_limit = None
|
113 |
export_limit = None
|
114 |
flags = 0
|
115 |
args = (resource.service, resource, key, quantity, capacity, |
116 |
import_limit, export_limit, flags) |
117 |
append(args) |
118 |
return data
|
119 |
|
120 |
|
121 |
@call('get_quota') |
122 |
def get_quota(users, client=None): |
123 |
data = [] |
124 |
append = data.append |
125 |
for user in users: |
126 |
try:
|
127 |
entity = user.email |
128 |
except AttributeError: |
129 |
continue
|
130 |
else:
|
131 |
for r in user.quota.keys(): |
132 |
args = entity, r, ENTITY_KEY |
133 |
append(args) |
134 |
return data
|
135 |
|
136 |
|
137 |
@call('create_entity') |
138 |
def create_entities(entities, client=None, field=''): |
139 |
data = [] |
140 |
append = data.append |
141 |
for entity in entities: |
142 |
try:
|
143 |
entity = entity.__getattribute__(field) |
144 |
except AttributeError: |
145 |
continue
|
146 |
owner = 'system'
|
147 |
key = ENTITY_KEY |
148 |
ownerkey = ''
|
149 |
args = entity, owner, key, ownerkey |
150 |
append(args) |
151 |
return data
|
152 |
|
153 |
|
154 |
def register_users(users, client=None): |
155 |
users, copy = itertools.tee(users) |
156 |
client, rejected = create_entities(entities=users, |
157 |
client=client, |
158 |
field='email')
|
159 |
created = (e for e in copy if unicode(e) not in rejected) |
160 |
return send_quota(created, client)
|
161 |
|
162 |
|
163 |
def register_resources(resources, client=None): |
164 |
resources, copy = itertools.tee(resources) |
165 |
client, rejected = create_entities(entities=resources, |
166 |
client=client, |
167 |
field='service')
|
168 |
created = (e for e in copy if unicode(e) not in rejected) |
169 |
return send_resource_quantities(created, client)
|
170 |
|
171 |
|
172 |
from datetime import datetime |
173 |
|
174 |
strptime = datetime.strptime |
175 |
timefmt = '%Y-%m-%dT%H:%M:%S.%f'
|
176 |
|
177 |
SECOND_RESOLUTION = 1
|
178 |
|
179 |
|
180 |
def total_seconds(timedelta_object): |
181 |
return timedelta_object.seconds + timedelta_object.days * 86400 |
182 |
|
183 |
|
184 |
def iter_timeline(timeline, before): |
185 |
if not timeline: |
186 |
return
|
187 |
|
188 |
for t in timeline: |
189 |
yield t
|
190 |
|
191 |
t = dict(t)
|
192 |
t['issue_time'] = before
|
193 |
yield t
|
194 |
|
195 |
|
196 |
def _usage_units(timeline, after, before, details=0): |
197 |
|
198 |
t_total = 0
|
199 |
uu_total = 0
|
200 |
t_after = strptime(after, timefmt) |
201 |
t_before = strptime(before, timefmt) |
202 |
t0 = t_after |
203 |
u0 = 0
|
204 |
|
205 |
for point in iter_timeline(timeline, before): |
206 |
issue_time = point['issue_time']
|
207 |
|
208 |
if issue_time <= after:
|
209 |
u0 = point['target_allocated_through']
|
210 |
continue
|
211 |
|
212 |
t = strptime(issue_time, timefmt) if issue_time <= before else t_before |
213 |
t_diff = int(total_seconds(t - t0) * SECOND_RESOLUTION)
|
214 |
t_total += t_diff |
215 |
uu_cost = u0 * t_diff |
216 |
uu_total += uu_cost |
217 |
t0 = t |
218 |
u0 = point['target_allocated_through']
|
219 |
|
220 |
target = point['target']
|
221 |
if details:
|
222 |
yield (target,
|
223 |
point['resource'],
|
224 |
point['name'],
|
225 |
issue_time, |
226 |
uu_cost, |
227 |
uu_total) |
228 |
|
229 |
if not t_total: |
230 |
return
|
231 |
|
232 |
yield (target,
|
233 |
'total',
|
234 |
point['resource'],
|
235 |
issue_time, |
236 |
uu_total / t_total, |
237 |
uu_total) |
238 |
|
239 |
|
240 |
def usage_units(timeline, after, before, details=0): |
241 |
return list(_usage_units(timeline, after, before, details=details)) |
242 |
|
243 |
|
244 |
def traffic_units(timeline, after, before, details=0): |
245 |
tu_total = 0
|
246 |
target = None
|
247 |
issue_time = None
|
248 |
|
249 |
for point in timeline: |
250 |
issue_time = point['issue_time']
|
251 |
if issue_time <= after:
|
252 |
continue
|
253 |
if issue_time > before:
|
254 |
break
|
255 |
|
256 |
target = point['target']
|
257 |
tu = point['target_allocated_through']
|
258 |
tu_total += tu |
259 |
|
260 |
if details:
|
261 |
yield (target,
|
262 |
point['resource'],
|
263 |
point['name'],
|
264 |
issue_time, |
265 |
tu, |
266 |
tu_total) |
267 |
|
268 |
if not tu_total: |
269 |
return
|
270 |
|
271 |
yield (target,
|
272 |
'total',
|
273 |
point['resource'],
|
274 |
issue_time, |
275 |
tu_total // len(timeline),
|
276 |
tu_total) |
277 |
|
278 |
|
279 |
def timeline_charge(entity, resource, after, before, details, charge_type): |
280 |
key = '1'
|
281 |
if charge_type == 'charge_usage': |
282 |
charge_units = usage_units |
283 |
elif charge_type == 'charge_traffic': |
284 |
charge_units = traffic_units |
285 |
else:
|
286 |
m = 'charge type %s not supported' % charge_type
|
287 |
raise ValueError(m) |
288 |
|
289 |
quotaholder = QuotaholderClient(QUOTAHOLDER_URL, token=QUOTAHOLDER_TOKEN) |
290 |
timeline = quotaholder.get_timeline( |
291 |
context={}, |
292 |
after=after, |
293 |
before=before, |
294 |
get_timeline=[[entity, resource, key]]) |
295 |
cu = charge_units(timeline, after, before, details=details) |
296 |
return cu
|