/
opserver_util.py
1104 lines (1001 loc) · 42.1 KB
/
opserver_util.py
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
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
153
154
155
156
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
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#
# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
#
#
# OpServer Utils
#
# Utility functions for Operational State Server for VNC
#
from gevent import monkey
monkey.patch_all()
import datetime
import time
import requests
import pkg_resources
import xmltodict
import json
import gevent
import socket, struct
import copy
import traceback
import ast
import re
import logging
from functools import partial
try:
from pysandesh.gen_py.sandesh.ttypes import SandeshType
from pysandesh.connection_info import ConnectionState
from pysandesh.gen_py.process_info.ttypes import ConnectionStatus, \
ConnectionType
from pysandesh.gen_py.sandesh.ttypes import SandeshLevel
except:
class SandeshType(object):
SYSTEM = 1
TRACE = 4
from requests.auth import HTTPBasicAuth
try:
from collections import OrderedDict
except ImportError:
# python 2.6 or earlier, use backport
from ordereddict import OrderedDict
def enum(**enums):
return type('Enum', (), enums)
# end enum
def camel_case_to_hyphen(name):
name = re.sub('(.)([A-Z][a-z]+)', r'\1-\2', name)
name = re.sub('([a-z])([A-Z])', r'\1-\2', name).lower()
return name
# end camel_case_to_hyphen
def inverse_dict(d):
return dict(zip(d.values(), d.keys()))
# end inverse_dict
from kazoo.client import KazooClient
from kazoo.client import KazooState
class AnalyticsDiscovery(gevent.Greenlet):
def _sandesh_connection_info_update(self, status, message):
new_conn_state = getattr(ConnectionStatus, status)
ConnectionState.update(conn_type = ConnectionType.ZOOKEEPER,
name = self._svc_name, status = new_conn_state,
message = message,
server_addrs = self._zk_server.split(','))
if (self._conn_state and self._conn_state != ConnectionStatus.DOWN and
new_conn_state == ConnectionStatus.DOWN):
msg = 'Connection to Zookeeper down: %s' %(message)
self._logger.error(msg)
if (self._conn_state and self._conn_state != new_conn_state and
new_conn_state == ConnectionStatus.UP):
msg = 'Connection to Zookeeper ESTABLISHED'
self._logger.error(msg)
self._conn_state = new_conn_state
#import pdb; pdb.set_trace()
# end _sandesh_connection_info_update
def _zk_listen(self, state):
self._logger.error("Analytics Discovery listen %s" % str(state))
if state == KazooState.CONNECTED:
if self._conn_state != ConnectionStatus.UP:
self._sandesh_connection_info_update(status='UP', message='')
self._logger.error("Analytics Discovery to publish %s" % str(self._pubinfo))
self._reconnect = True
else:
self._logger.error("Analytics Discovery already connected")
else:
self._logger.error("Analytics Discovery NOT connected")
if self._conn_state == ConnectionStatus.UP:
self._sandesh_connection_info_update(status='DOWN', message='')
def _zk_datawatch(self, watcher, child, data, stat, event="unknown"):
self._logger.error(\
"Analytics Discovery %s ChildData : child %s, data %s, event %s" % \
(watcher, child, data, event))
if data:
data_dict = json.loads(data)
self._wchildren[watcher][child] = OrderedDict(sorted(data_dict.items()))
else:
if child in self._wchildren[watcher]:
del self._wchildren[watcher][child]
if self._watchers[watcher]:
self._watchers[watcher](sorted(self._wchildren[watcher].values()))
def _zk_watcher(self, watcher, children):
self._logger.error("Analytics Discovery Children %s" % children)
self._reconnect = True
def __init__(self, logger, zkservers, svc_name, inst,
watchers={}, zpostfix="", freq=10):
gevent.Greenlet.__init__(self)
self._svc_name = svc_name
self._inst = inst
self._zk_server = zkservers
# initialize logging and other stuff
if logger is None:
logging.basicConfig()
self._logger = logging
else:
self._logger = logger
self._conn_state = None
self._sandesh_connection_info_update(status='INIT', message='')
self._zk = KazooClient(hosts=zkservers)
self._pubinfo = None
self._watchers = watchers
self._wchildren = {}
self._zpostfix = zpostfix
self._basepath = "/analytics-discovery-" + self._zpostfix
self._reconnect = None
self._freq = freq
def publish(self, pubinfo):
self._pubinfo = pubinfo
#import pdb; pdb.set_trace()
if self._conn_state == ConnectionStatus.UP:
try:
self._logger.error("ensure %s" % (self._basepath + "/" + self._svc_name))
self._logger.error("zk state %s (%s)" % (self._zk.state, self._zk.client_state))
self._zk.ensure_path(self._basepath + "/" + self._svc_name)
self._logger.error("check for %s/%s/%s" % \
(self._basepath, self._svc_name, self._inst))
if pubinfo is not None:
if self._zk.exists("%s/%s/%s" % \
(self._basepath, self._svc_name, self._inst)):
self._zk.set("%s/%s/%s" % \
(self._basepath, self._svc_name, self._inst),
self._pubinfo)
else:
self._zk.create("%s/%s/%s" % \
(self._basepath, self._svc_name, self._inst),
self._pubinfo, ephemeral=True)
else:
if self._zk.exists("%s/%s/%s" % \
(self._basepath, self._svc_name, self._inst)):
self._logger.error("withdrawing published info!")
self._zk.delete("%s/%s/%s" % \
(self._basepath, self._svc_name, self._inst))
except Exception as ex:
template = "Exception {0} in AnalyticsDiscovery publish. Args:\n{1!r}"
messag = template.format(type(ex).__name__, ex.args)
self._logger.error("%s : traceback %s for %s info %s" % \
(messag, traceback.format_exc(), self._svc_name, str(self._pubinfo)))
self._sandesh_connection_info_update(status='DOWN', message='')
self._reconnect = True
else:
self._logger.error("Analytics Discovery cannot publish while down")
def _run(self):
while True:
try:
self._zk.start()
break
except gevent.event.Timeout as e:
# Update connection info
self._sandesh_connection_info_update(status='DOWN',
message=str(e))
gevent.sleep(1)
# Zookeeper is also throwing exception due to delay in master election
except Exception as e:
# Update connection info
self._sandesh_connection_info_update(status='DOWN',
message=str(e))
gevent.sleep(1)
try:
# Update connection info
self._sandesh_connection_info_update(status='UP', message='')
self._reconnect = False
# Done connecting to ZooKeeper
self._zk.add_listener(self._zk_listen)
for wk in self._watchers.keys():
self._zk.ensure_path(self._basepath + "/" + wk)
self._wchildren[wk] = {}
self._zk.ChildrenWatch(self._basepath + "/" + wk,
partial(self._zk_watcher, wk))
# Trigger the initial publish
self._reconnect = True
while True:
try:
# If a reconnect happens during processing, don't lose it
while self._reconnect:
self._logger.error("Analytics Discovery %s reconnect" \
% self._svc_name)
self._reconnect = False
self.publish(self._pubinfo)
for wk in self._watchers.keys():
self._zk.ensure_path(self._basepath + "/" + wk)
children = self._zk.get_children(self._basepath + "/" + wk)
old_children = set(self._wchildren[wk].keys())
new_children = set(children)
# Remove contents for the children who are gone
# (DO NOT remove the watch)
for elem in old_children - new_children:
del self._wchildren[wk][elem]
# Overwrite existing children, or create new ones
for elem in new_children:
# Create a watch for new children
if elem not in self._wchildren[wk]:
self._zk.DataWatch(self._basepath + "/" + \
wk + "/" + elem,
partial(self._zk_datawatch, wk, elem))
data_str, _ = self._zk.get(\
self._basepath + "/" + wk + "/" + elem)
data_dict = json.loads(data_str)
self._wchildren[wk][elem] = \
OrderedDict(sorted(data_dict.items()))
self._logger.error(\
"Analytics Discovery %s ChildData : child %s, data %s, event %s" % \
(wk, elem, self._wchildren[wk][elem], "GET"))
if self._watchers[wk]:
self._watchers[wk](sorted(self._wchildren[wk].values()))
gevent.sleep(self._freq)
except gevent.GreenletExit:
self._logger.error("Exiting AnalyticsDiscovery for %s" % \
self._svc_name)
self._zk.stop()
break
except Exception as ex:
template = "Exception {0} in AnalyticsDiscovery reconnect. Args:\n{1!r}"
messag = template.format(type(ex).__name__, ex.args)
self._logger.error("%s : traceback %s for %s info %s" % \
(messag, traceback.format_exc(), self._svc_name, str(self._pubinfo)))
self._reconnect = True
except Exception as ex:
template = "Exception {0} in AnalyticsDiscovery run. Args:\n{1!r}"
messag = template.format(type(ex).__name__, ex.args)
self._logger.error("%s : traceback %s for %s info %s" % \
(messag, traceback.format_exc(), self._svc_name, str(self._pubinfo)))
raise SystemExit
class OpServerUtils(object):
TIME_FORMAT_STR = '%Y %b %d %H:%M:%S.%f'
DEFAULT_TIME_DELTA = 10 * 60 * 1000000 # 10 minutes in microseconds
USECS_IN_SEC = 1000 * 1000
OBJECT_ID = 'ObjectId'
POST_HEADERS = {'Content-type': 'application/json; charset="UTF-8"',
'Expect': '202-accepted'}
POST_HEADERS_SYNC = {'Content-type': 'application/json; charset="UTF-8"'}
TunnelType = enum(INVALID=0, MPLS_GRE=1, MPLS_UDP=2, VXLAN=3)
@staticmethod
def _get_list_name(lst):
sname = ""
for sattr in lst.keys():
if sattr[0] not in ['@']:
sname = sattr
return sname
@staticmethod
def uve_attr_flatten(inp):
sname = ""
if (inp['@type'] == 'struct'):
sname = OpServerUtils._get_list_name(inp)
if (sname == ""):
raise Exception('Struct Parse Error')
ret = {}
if inp[sname] is None:
return ret
for k, v in inp[sname].items():
ret[k] = OpServerUtils.uve_attr_flatten(v)
return ret
elif (inp['@type'] == 'list'):
sname = OpServerUtils._get_list_name(inp['list'])
ret = []
if (sname == ""):
return ret
items = inp['list'][sname]
if not isinstance(items, list):
items = [items]
lst = []
for elem in items:
if not isinstance(elem, dict):
lst.append(elem)
else:
lst_elem = {}
for k, v in elem.items():
lst_elem[k] = OpServerUtils.uve_attr_flatten(v)
lst.append(lst_elem)
#ret[sname] = lst
ret = lst
return ret
elif (inp['@type'] == 'map'):
fmap = {}
sname = None
for ss in inp['map'].keys():
if ss[0] != '@':
if ss != 'element':
sname = ss
if sname is None:
for idx in range(0,int(inp['map']['@size'])):
m_attr = inp['map']['element'][idx*2]
m_val = str(inp['map']['element'][(idx*2)+1])
fmap[m_attr] = m_val
else:
if not isinstance(inp['map']['element'], list):
inp['map']['element'] = [inp['map']['element']]
if not isinstance(inp['map'][sname], list):
inp['map'][sname] = [inp['map'][sname]]
for idx in range(0,int(inp['map']['@size'])):
m_attr = inp['map']['element'][idx]
subst = {}
if inp['map'][sname][idx]:
for sk,sv in inp['map'][sname][idx].iteritems():
subst[sk] = OpServerUtils.uve_attr_flatten(sv)
fmap[m_attr] = subst
return fmap
else:
if '#text' not in inp:
return None
if inp['@type'] in ['i16', 'i32', 'i64', 'byte',
'u64', 'u32', 'u16']:
return int(inp['#text'])
elif inp['@type'] in ['float', 'double']:
return float(inp['#text'])
elif inp['@type'] in ['bool']:
if inp['#text'] in ["false"]:
return False
elif inp['#text'] in ["true"]:
return True
else:
return inp['#text']
else:
return inp['#text']
@staticmethod
def utc_timestamp_usec():
epoch = datetime.datetime.utcfromtimestamp(0)
now = datetime.datetime.utcnow()
delta = now - epoch
return (delta.microseconds +
(delta.seconds + delta.days * 24 * 3600) * 10 ** 6)
# end utc_timestamp_usec
@staticmethod
def parse_start_end_time(start_time, end_time, last):
ostart_time = None
oend_time = None
if last is not None:
last = '-' + last
ostart_time = 'now' + last
oend_time = 'now'
else:
try:
if 'now' in start_time and \
'now' in end_time:
ostart_time = start_time
oend_time = end_time
now = OpServerUtils.utc_timestamp_usec()
td = OpServerUtils.convert_to_time_delta(ostart_time[len('now'):])
if td == None:
ostart_time = now
else:
ostart_time = now + (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10 ** 6)
td = OpServerUtils.convert_to_time_delta(oend_time[len('now'):])
if td == None:
oend_time = now
else:
oend_time = now + (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10 ** 6)
elif start_time.isdigit() and \
end_time.isdigit():
ostart_time = int(start_time)
oend_time = int(end_time)
else:
ostart_time =\
OpServerUtils.convert_to_utc_timestamp_usec(
start_time)
oend_time =\
OpServerUtils.convert_to_utc_timestamp_usec(
end_time)
except:
print 'Incorrect start-time (%s) or end-time (%s) format' %\
(start_time, end_time)
raise
if ostart_time is None and oend_time is None:
oend_time = OpServerUtils.utc_timestamp_usec()
ostart_time = end_time - OpServerUtils.DEFAULT_TIME_DELTA
elif ostart_time is None and oend_time is not None:
ostart_time = oend_time - OpServerUtils.DEFAULT_TIME_DELTA
elif ostart_time is not None and oend_time is None:
oend_time = ostart_time + OpServerUtils.DEFAULT_TIME_DELTA
return ostart_time, oend_time
# end parse_start_end_time
@staticmethod
def post_url_http(url, params, user, password, sync=False):
if sync:
hdrs = OpServerUtils.POST_HEADERS_SYNC
stm = False
pre = True
else:
hdrs = OpServerUtils.POST_HEADERS
stm = True
pre = False
try:
if int(pkg_resources.get_distribution("requests").version[0]) != 0:
response = requests.post(url, stream=stm,
data=params,
auth=HTTPBasicAuth(user, password),
headers=hdrs)
else:
response = requests.post(url, prefetch=pre,
data=params,
auth=HTTPBasicAuth(user, password),
headers=hdrs)
except requests.exceptions.ConnectionError, e:
print "Connection to %s failed %s" % (url, str(e))
return None
if (response.status_code == 202) or (response.status_code) == 200:
return response.text
else:
print "HTTP error code: %d" % response.status_code
return None
# end post_url_http
@staticmethod
def get_url_http(url, user, password):
data = {}
try:
if int(pkg_resources.get_distribution("requests").version[0]) != 0:
data = requests.get(url, stream=True,
auth=HTTPBasicAuth(user, password))
else:
data = requests.get(url, prefetch=False,
auth=HTTPBasicAuth(user, password))
except requests.exceptions.ConnectionError, e:
print "Connection to %s failed %s" % (url, str(e))
return data
# end get_url_http
@staticmethod
def parse_query_result(result):
done = False
resit = result.iter_lines()
while not done:
try:
ln = resit.next()
if ln == '{"value": [':
continue
if ln == ']}':
done = True
continue
if ln[0] == ',':
out_line = '[ {} ' + ln + ' ]'
else:
out_line = '[ {} , ' + ln + ' ]'
out_list = json.loads(out_line)
out_list.pop(0)
for i in out_list:
yield i
except Exception as e:
print "Error parsing %s results: %s" % (ln, str(e))
done = True
return
# end parse_query_result
@staticmethod
def get_query_result(opserver_ip, opserver_port, qid, user, password,
time_out=None):
sleep_interval = 0.5
time_left = time_out
while True:
url = OpServerUtils.opserver_query_url(
opserver_ip, opserver_port) + '/' + qid
resp = OpServerUtils.get_url_http(url, user, password)
if resp.status_code != 200:
yield {}
return
status = json.loads(resp.text)
if status['progress'] < 0:
print 'Error in query processing'
return
elif status['progress'] != 100:
if time_out is not None:
if time_left > 0:
time_left -= sleep_interval
else:
print 'query timed out'
yield {}
return
gevent.sleep(sleep_interval)
continue
else:
for chunk in status['chunks']:
url = OpServerUtils.opserver_url(
opserver_ip, opserver_port) + chunk['href']
resp = OpServerUtils.get_url_http(url, user, password)
if resp.status_code != 200:
yield {}
else:
for result in OpServerUtils.parse_query_result(resp):
yield result
return
# end get_query_result
@staticmethod
def convert_to_time_delta(time_str):
if time_str == '' or time_str == None:
return None
num = int(time_str[:-1])
if time_str.endswith('s'):
return datetime.timedelta(seconds=num)
elif time_str.endswith('m'):
return datetime.timedelta(minutes=num)
elif time_str.endswith('h'):
return datetime.timedelta(hours=num)
elif time_str.endswith('d'):
return datetime.timedelta(days=num)
# end convert_to_time_delta
@staticmethod
def convert_to_utc_timestamp_usec(time_str):
# First try datetime.datetime.strptime format
try:
dt = datetime.datetime.strptime(
time_str, OpServerUtils.TIME_FORMAT_STR)
except ValueError:
# Try now-+ format
if time_str == 'now':
return OpServerUtils.utc_timestamp_usec()
else:
# Handle now-/+1h format
if time_str.startswith('now'):
td = OpServerUtils.convert_to_time_delta(
time_str[len('now'):])
else:
# Handle -/+1h format
td = OpServerUtils.convert_to_time_delta(time_str)
utc_tstamp_usec = OpServerUtils.utc_timestamp_usec()
return utc_tstamp_usec +\
((td.microseconds +
(td.seconds + td.days * 24 * 3600) * 10 ** 6))
else:
return int(time.mktime(dt.timetuple()) * 10 ** 6)
# end convert_to_utc_timestamp_usec
@staticmethod
def tunnel_type_to_str(tunnel_type):
if tunnel_type == OpServerUtils.TunnelType.MPLS_GRE:
return "MPLSoGRE"
elif tunnel_type == OpServerUtils.TunnelType.MPLS_UDP:
return "MPLSoUDP"
elif tunnel_type == OpServerUtils.TunnelType.VXLAN:
return "VXLAN"
else:
return str(tunnel_type)
#end tunnel_type_to_str
@staticmethod
def tunnel_type_to_protocol(tunnel_type):
if tunnel_type == OpServerUtils.TunnelType.MPLS_GRE:
return 47
elif tunnel_type == OpServerUtils.TunnelType.MPLS_UDP:
return 17
elif tunnel_type == OpServerUtils.TunnelType.VXLAN:
return 17
return tunnel_type
# end tunnel_type_to_protocol
@staticmethod
def ip_protocol_to_str(protocol):
if protocol == 6:
return "TCP"
elif protocol == 17:
return "UDP"
elif protocol == 1:
return "ICMP"
elif protocol == 2:
return "IGMP"
else:
return str(protocol)
#end ip_protocol_to_str
@staticmethod
def str_to_ip_protocol(protocol):
if protocol.lower() == "tcp":
return 6
elif protocol.lower() == "udp":
return 17
elif protocol.lower() == "icmp":
return 1
elif protocol.lower() == "igmp":
return 2
else:
return -1
#end str_to_ip_protocol
@staticmethod
def opserver_url(ip, port):
return "http://" + ip + ":" + port
# end opserver_url
@staticmethod
def opserver_query_url(opserver_ip, opserver_port):
return "http://" + opserver_ip + ":" + opserver_port +\
"/analytics/query"
# end opserver_query_url
@staticmethod
def opserver_database_purge_query_url(opserver_ip, opserver_port):
return "http://" + opserver_ip + ":" + opserver_port +\
"/analytics/operation/database-purge"
# end opserver_database_purge_query_url
@staticmethod
def messages_xml_data_to_dict(messages_dict, msg_type):
if msg_type in messages_dict:
# convert xml value to dict
try:
messages_dict[msg_type] = xmltodict.parse(
messages_dict[msg_type])
except:
pass
# end messages_xml_data_to_dict
@staticmethod
def _messages_dict_remove_keys(messages_dict, key_pattern):
for key, value in messages_dict.items():
if key_pattern in key:
del messages_dict[key]
if isinstance(value, list):
for elem in value:
if isinstance(elem, dict):
OpServerUtils._messages_dict_remove_keys(
elem, key_pattern)
if isinstance(value, dict):
OpServerUtils._messages_dict_remove_keys(value, key_pattern)
# end _messages_dict_remove_keys
@staticmethod
def _messages_dict_flatten_key(messages_dict, key_match):
for key, value in messages_dict.items():
if isinstance(value, dict):
if key_match in value:
messages_dict[key] = value[key_match]
else:
OpServerUtils._messages_dict_flatten_key(value, key_match)
if isinstance(value, list):
for elem in value:
if isinstance(elem, dict):
OpServerUtils._messages_dict_flatten_key(elem,
key_match)
#end _messages_dict_flatten_key
@staticmethod
def _json_loads_check(value):
try:
json_value = json.loads(value)
except:
return False, None
else:
return True, json_value
# end _json_loads_check
@staticmethod
def _eval_check(value):
try:
eval_value = ast.literal_eval(value)
except:
return False, None
else:
return True, eval_value
# end _eval_check
# Evaluate messages dict using json.loads() or ast.literal_eval()
@staticmethod
def _messages_dict_eval(messages_dict):
for key, value in messages_dict.iteritems():
if isinstance(value, basestring):
# First try json.loads
success, json_value = OpServerUtils._json_loads_check(value)
if success:
messages_dict[key] = json_value
continue
# Next try ast.literal_eval
success, eval_value = OpServerUtils._eval_check(value)
if success:
messages_dict[key] = eval_value
continue
if isinstance(value, dict):
OpServerUtils._messages_dict_eval(value)
if isinstance(value, list):
for elem in value:
if isinstance(elem, dict):
OpServerUtils._messages_dict_eval(elem)
# end _messages_dict_eval
# Scrubs the message dict to remove keys containing @, and will
# flatten out dicts containing #text and eval strings
@staticmethod
def messages_dict_scrub(messages_dict):
OpServerUtils._messages_dict_remove_keys(messages_dict, '@')
OpServerUtils._messages_dict_flatten_key(messages_dict, '#text')
OpServerUtils._messages_dict_eval(messages_dict)
# end messages_dict_scrub
@staticmethod
def messages_data_dict_to_str(messages_dict, message_type, sandesh_type):
data_dict = messages_dict[message_type]
if sandesh_type == SandeshType.SYSLOG:
return data_dict.encode('utf8', 'replace')
return OpServerUtils._data_dict_to_str(data_dict, sandesh_type)
# end messages_data_dict_to_str
@staticmethod
def _data_dict_to_str(data_dict, sandesh_type):
data_str = None
if not data_dict:
return ''
for key, value in data_dict.iteritems():
# Ignore if type is sandesh
if '@type' == key and value == 'sandesh':
continue
# Do not print 'file' and 'line'
if 'file' == key or 'line' == key:
continue
# Confirm value is dict
if isinstance(value, dict):
value_dict = value
else:
continue
# Handle struct, list, ipv4 type
if '@type' in value_dict:
if value_dict['@type'] == 'ipv4':
elem = int(value_dict['#text'])
value_dict['#text'] = socket.inet_ntoa(struct.pack('!L',elem))
if value_dict['@type'] == 'struct':
for vdict_key, vdict_value in value_dict.iteritems():
if isinstance(vdict_value, dict):
if data_str is None:
data_str = ''
else:
data_str += ', '
data_str += \
'[' + vdict_key + ': ' +\
OpServerUtils._data_dict_to_str(
vdict_value, sandesh_type) + ']'
continue
if value_dict['@type'] == 'list':
if data_str is None:
data_str = ''
else:
data_str += ', '
vlist_dict = value_dict['list']
# Handle list of basic types
if 'element' in vlist_dict:
if not isinstance(vlist_dict['element'], list):
velem_list = [vlist_dict['element']]
else:
velem_list = vlist_dict['element']
data_str += '[' + key + ':'
if vlist_dict['@type'] == 'ipv4':
for velem in velem_list:
velem = socket.inet_ntoa(struct.pack('!L',int(velem)))
data_str += ' ' + velem
else:
for velem in velem_list:
data_str += ' ' + str(velem)
data_str += ']'
# Handle list of complex types
else:
data_str += '[' + key + ':'
for vlist_key, vlist_value in vlist_dict.iteritems():
if isinstance(vlist_value, dict):
vlist_value_list = [vlist_value]
elif isinstance(vlist_value, list):
vlist_value_list = vlist_value
else:
continue
for vdict in vlist_value_list:
data_str +=\
' [' + OpServerUtils._data_dict_to_str(
vdict, sandesh_type) + ']'
data_str += ']'
continue
if value_dict['@type'] == 'map':
if data_str is None:
data_str = ''
else:
data_str += ', '
vdict = value_dict['map']
data_str += key + ': {'
sname = None
for ss in vdict.keys():
if ss[0] != '@':
if ss != 'element':
sname = ss
if sname is not None:
keys = []
values = []
for key, value in vdict.iteritems():
if key == 'element':
if isinstance(value, list):
keys = value
else:
keys = [value]
elif isinstance(value, dict):
values = [value]
elif isinstance(value, list):
values = value
for i in range(len(keys)):
data_str += keys[i] + ': ' + \
'[' + OpServerUtils._data_dict_to_str(
values[i], sandesh_type) + '], '
else:
if 'element' in vdict:
vdict_list = vdict['element']
for i in range(int(vdict['@size'])):
k = i*2
data_str += vdict_list[k] + ': ' + \
vdict_list[k+1] + ', '
data_str += '}'
continue
else:
if data_str is None:
data_str = ''
else:
data_str += ', '
data_str += '[' + OpServerUtils._data_dict_to_str(
value_dict, sandesh_type) + ']'
continue
if (sandesh_type == SandeshType.SYSTEM or
sandesh_type == SandeshType.TRACE):
if data_str is None:
data_str = ''
else:
data_str += ' '
if '#text' in value_dict:
data_str += value_dict['#text']
if 'element' in value_dict:
data_str += value_dict['element']
else:
if data_str is None:
data_str = ''
else:
data_str += ', '
if '#text' in value_dict:
data_str += key + ' = ' + value_dict['#text']
elif 'element' in value_dict:
data_str += key + ' = ' + value_dict['element']
else:
data_str += key + ' = '
if data_str is None:
data_str = ''
return data_str
# end _data_dict_to_str
@staticmethod
def get_query_dict(table, start_time=None, end_time=None,
select_fields=None,
where_clause="",
sort_fields=None, sort=None, limit=None, filter=None, dir=None):
"""
This function takes in the query parameters,
format appropriately and calls
ReST API to the :mod:`opserver` to get data
:param table: table to do the query on
:type table: str
:param start_time: start_time of the query's timeperiod
:type start_time: int
:param end_time: end_time of the query's timeperiod
:type end_time: int
:param select_fields: list of columns to be returned
in the final result
:type select_fields: list of str
:param where_clause: list of match conditions for the query
:type where_clause: list of match, which is a pair of str ANDed
:returns: str -- dict of query request
:raises: Error
"""
try:
lstart_time, lend_time = OpServerUtils.parse_start_end_time(
start_time = start_time,
end_time = end_time,
last = None)
except:
return None
sf = select_fields
where = []
for term in where_clause.split('OR'):
term_elem = []
for match in term.split('AND'):
if match == '':
continue
match_s = match.strip(' ()')
match_e = match_s.split('=')
match_e[0] = match_e[0].strip(' ()')
match_e[1] = match_e[1].strip(' ()')
match_sp = match_e[0].split('|')
if len(match_sp) is 1:
tname = match_sp[0]
match_v = match_e[1].split("<")
else:
tname = match_sp[1]
bname = match_sp[0]
match_vp = match_e[1].split('|')
bval = match_vp[0]
match_v = match_vp[1].split("<")
if len(match_v) is 1:
if match_v[0][-1] is '*':
match_prefix = match_v[0][:(len(match_v[0]) - 1)]
print match_prefix
match_elem = OpServerUtils.Match(
name=tname, value=match_prefix,
op=OpServerUtils.MatchOp.PREFIX)
else:
match_elem = OpServerUtils.Match(
name=tname, value=match_v[0],
op=OpServerUtils.MatchOp.EQUAL)
else:
match_elem = OpServerUtils.Match(
name=tname, value=match_v[0],
op=OpServerUtils.MatchOp.IN_RANGE, value2=match_v[1])
if len(match_sp) is 1:
term_elem.append(match_elem.__dict__)
else:
selem = OpServerUtils.Match(
name=bname, value=bval, op=OpServerUtils.MatchOp.EQUAL,
value2=None, suffix = match_elem)
term_elem.append(selem.__dict__)
if len(term_elem) == 0:
where = None
else:
where.append(term_elem)
filter_terms = []
if filter is not None:
for match in filter.split(','):
match_s = match.strip(' ()')
match_e = match_s.split('=')
match_op = ["", ""]
if (len(match_e) == 2):
match_op[0] = match_e[0].strip(' ()')
match_op[1] = match_e[1].strip(' ()')
op = OpServerUtils.MatchOp.REGEX_MATCH