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
|
"""
General utilities for logging metadata
"""
from functools import wraps
from datetime import datetime
from packet import app, ldap
from packet.context_processors import get_rit_name
from packet.utils import is_freshman_on_floor
def log_time(func):
"""
Decorator for logging the execution time of a function
"""
@wraps(func)
def wrapped_function(*args, **kwargs):
start = datetime.now()
result = func(*args, **kwargs)
seconds = (datetime.now() - start).total_seconds()
app.logger.info('{}.{}() returned after {} seconds'.format(func.__module__, func.__name__, seconds))
return result
return wrapped_function
def _format_cache(func):
"""
:return: The output of func.cache_info() as a compactly formatted string
"""
info = func.cache_info()
return '{}[hits={}, misses={}, size={}/{}]'.format(func.__name__, info.hits, info.misses, info.currsize,
info.maxsize)
# Tuple of lru_cache functions to log stats from
_caches = (get_rit_name, ldap.get_member, is_freshman_on_floor)
def log_cache(func):
"""
Decorator for logging cache info
"""
@wraps(func)
def wrapped_function(*args, **kwargs):
result = func(*args, **kwargs)
app.logger.info('Cache stats: ' + ', '.join(map(_format_cache, _caches)))
return result
return wrapped_function
|
