Source Code for Module Products.ZenUtils.Time

 1  ########################################################################### 
 2  # 
 3  # This program is part of Zenoss Core, an open source monitoring platform. 
 4  # Copyright (C) 2007, Zenoss Inc. 
 5  # 
 6  # This program is free software; you can redistribute it and/or modify it 
 7  # under the terms of the GNU General Public License version 2 as published by 
 8  # the Free Software Foundation. 
 9  # 
10  # For complete information please visit: http://www.zenoss.com/oss/ 
11  # 
12  ########################################################################### 
13   
14  """Time 
15   
16  Utilities for consistent manipulation of Dates and Time.  All simple 
17  code should migrate here, and without dependencies on anything other 
18  than standard python libraries. 
19   
20  $Id:$""" 
21   
22  __version__ = "$$"[11:-2] 
23   
24  import time 
25   
26 -def _maybenow(gmtSecondsSince1970): 
27      if gmtSecondsSince1970 is None: 
28          return time.time() 
29      return int(gmtSecondsSince1970) 
30   
31 -def LocalDateTime(gmtSecondsSince1970 = None): 
32      value = _maybenow(gmtSecondsSince1970) 
33      secs = value % 60 
34      return time.strftime("%Y/%m/%d %H:%M:%%06.3f", time.localtime(value)) % secs 
35   
36 -def isoDateTime(gmtSecondsSince1970 = None): 
37      value = _maybenow(gmtSecondsSince1970) 
38      return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(value)) 
39   
40 -def LocalDateTimeSecsResolution(gmtSecondsSince1970 = None): 
41      value = _maybenow(gmtSecondsSince1970) 
42      return time.strftime("%Y/%m/%d %H:%M:%S", time.localtime(value))  
43   
44 -def USDate(gmtSecondsSince1970 = None): 
45      value = _maybenow(gmtSecondsSince1970) 
46      return time.strftime("%m/%d/%Y", time.localtime(value)) 
47   
48 -def ParseUSDate(mdy): 
49      return time.mktime(time.strptime(mdy, "%m/%d/%Y")) 
50   
51 -def YYYYMMDDHHMMS(gmtSecondsSince1970 = None): 
52      value = _maybenow(gmtSecondsSince1970) 
53      return time.strftime("%Y%m%d%H%M%S", time.localtime(value)) 
54   
55 -def HHMMSS(gmtSecondsSince1970 = None): 
56      value = _maybenow(gmtSecondsSince1970) 
57      return time.strftime("%H:%M:%S", time.localtime(value)) 
58   
59 -def SaveMessage(): 
60      return "Saved at time: " + HHMMSS() 
61   
62 -def Duration(seconds): 
63      result = ':%02d' % (seconds % 60) 
64      seconds /= 60 
65      if seconds: 
66          result = '%02d%s' % (seconds % 60, result) 
67      seconds /= 60 
68      if seconds: 
69          result = '%02d:%s' % (seconds % 24, result) 
70      seconds /= 24 
71      if seconds: 
72          result = '%d days %s' % (seconds, result) 
73      return result 
74   
75   
76 -def getBeginningOfDay(gmtSecondsSince1970=None): 
77      value = _maybenow(gmtSecondsSince1970) 
78      return time.mktime(time.localtime(value)[:3] + (0,0,0,0,0,-1)) 
79   
80   
81 -def getEndOfDay(gmtSecondsSince1970=None): 
82      value = _maybenow(gmtSecondsSince1970) 
83      return time.mktime(time.localtime(value)[:3] + (23,59,59,0,0,-1)) 
84   
85 -def isoToTimestamp(value): 
86      """ 
87      converts a iso time string that does not contain a timezone, ie.  
88      YYYY-MM-DD HH:MM:SS, to a timestamp in seconds since 1970; uses the system  
89      timezone 
90      """ 
91      timeStr = value.replace('T', ' ') 
92      timeTuple = time.strptime(timeStr, '%Y-%m-%d %H:%M:%S') 
93      timestamp = time.mktime(timeTuple) 
94      return timestamp 
95