Source Code for Module ZenModel.CdefGraphPoint

 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  __doc__="""CdefGraphPoint 
15   
16  Handles GraphPoints that define an rrd CDEF 
17  """ 
18   
19  import os 
20  from GraphPoint import GraphPoint 
21  from Globals import InitializeClass 
22   
23   
24 -def manage_addCdefGraphPoint(context, id, REQUEST = None): 
25      ''' This is here so than zope will let us copy/paste/rename 
26      graphpoints. 
27      ''' 
28      gp = CdefGraphPoint(id) 
29      context._setObject(gp.id, gp) 
30      if REQUEST: 
31          return context.callZenScreen(REQUEST) 
32   
33   
34 -class CdefGraphPoint(GraphPoint): 
35   
36      meta_type = 'CdefGraphPoint' 
37   
38      rpn = '' 
39   
40      _properties = GraphPoint._properties + ( 
41          {'id':'rpn', 'type':'string', 'mode':'w'}, 
42          ) 
43       
44 -    def getDescription(self): 
45          return self.rpn 
46   
47   
48 -    def getType(self): 
49          return 'CDEF' 
50   
51   
52 -    def getGraphCmds(self, cmds, context, rrdDir, addSummary, idx, 
53                          multiid=-1, prefix=''): 
54          ''' Build the graphing commands for this graphpoint 
55          ''' 
56          if not self.rpn: 
57              return cmds 
58          return cmds + ['CDEF:%s=%s' % ( 
59                          self.getDsName(self.id, multiid, prefix), self.rpn)] 
60   
61   
62  InitializeClass(CdefGraphPoint) 
63