Source Code for Module Products.ZenRRD.ComponentCommandParser

 1  ########################################################################### 
 2  # 
 3  # This program is part of Zenoss Core, an open source monitoring platform. 
 4  # Copyright (C) 2008, 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  from Products.ZenRRD.CommandParser import CommandParser 
15  from Products.ZenUtils.Utils import prepId as globalPrepId 
16  import re 
17  from pprint import pformat 
18  import logging 
19   
20  log = logging.getLogger("zen.ComponentCommandParser") 
21   
22 -class ComponentCommandParser(CommandParser): 
23   
24      componentSplit = '\n' 
25   
26      componentScanner = '' 
27   
28      scanners = () 
29   
30      componentScanValue = 'id' 
31   
32 -    def prepId(self, id, subchar='_'): 
33          return globalPrepId(id, subchar) 
34   
35 -    def dataForParser(self, context, dp): 
36          return dict(componentScanValue = getattr(context, self.componentScanValue)) 
37   
38 -    def processResults(self, cmd, result): 
39   
40          # Map datapoints by data you can find in the command output 
41          ifs = {} 
42          for dp in cmd.points: 
43              points = ifs.setdefault(dp.data['componentScanValue'], {}) 
44              points[dp.id] = dp 
45   
46          # split data into component blocks 
47          parts = cmd.result.output.split(self.componentSplit) 
48   
49          for part in parts: 
50              # find the component match 
51              match = re.search(self.componentScanner, part) 
52              if not match: continue 
53              component = match.groupdict()['component'].strip() 
54              if self.componentScanValue == 'id': component = self.prepId(component) 
55              points = ifs.get(component, None) 
56              if not points: continue 
57   
58              # find any datapoints 
59              for search in self.scanners: 
60                  match = re.search(search, part) 
61                  if match: 
62                      for name, value in match.groupdict().items(): 
63                          dp = points.get(name, None) 
64                          if dp is not None: 
65                              if value in ('-', ''): value = 0 
66                              result.values.append( (dp, float(value) ) ) 
67                               
68          log.debug(pformat(result)) 
69          return result 
70