Source Code for Module sword2.transaction_history

 1  #!/usr/bin/env python 
 2  # -*- coding: utf-8 -*- 
 3   
 4  """ 
 5  Provides a class to hold the `sword2.Connection` transaction history and give simple means for export (JSON) and reporting. 
 6  """ 
 7   
 8  from sword2_logging import logging 
 9   
10  from datetime import datetime 
11   
12  th_l = logging.getLogger(__name__) 
13   
14 -class Transaction_History(list): 
15 -    def log(self, event_type, **kw): 
16          self.append({'type':event_type, 
17                       'timestamp':datetime.now().isoformat(), 
18                       'payload':kw}) 
19   
20 -    def __str__(self): 
21          _s = [] 
22          for item in self: 
23              _s.append("-"*20) 
24              _s.append("Type: '%s' [%s]\nData:" % (item['type'], item['timestamp'])) 
25              for key, value in item['payload'].iteritems(): 
26                  _s.append("%s:   %s" % (key, value)) 
27           
28          return "\n".join(_s) 
29   
30 -    def to_json(self): 
31          from compatible_libs import json 
32          if json: 
33              th_l.debug("Attempting to dump %s history items to JSON" % len(self)) 
34              return json.dumps(self) 
35          else: 
36              th_l.error("Cannot procede with converting the transaction history to JSON") 
37   
38 -    def to_pretty_json(self): 
39          from compatible_libs import json 
40          if json: 
41              th_l.debug("Attempting to dump %s history items to indented, readable JSON" % len(self)) 
42              return json.dumps(self, indent=True) 
43          else: 
44              th_l.error("Cannot procede with converting the transaction history to JSON") 
45