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  from GraphPoint import GraphPoint 
20  from Globals import InitializeClass 
21   
22   
23 -def manage_addCdefGraphPoint(context, id, REQUEST = None): 
24      ''' This is here so than zope will let us copy/paste/rename 
25      graphpoints. 
26      ''' 
27      gp = CdefGraphPoint(id) 
28      context._setObject(gp.id, gp) 
29      if REQUEST: 
30          return context.callZenScreen(REQUEST) 
31   
32   
33 -class CdefGraphPoint(GraphPoint): 
34   
35      meta_type = 'CdefGraphPoint' 
36   
37      rpn = '' 
38   
39      _properties = GraphPoint._properties + ( 
40          {'id':'rpn', 'type':'string', 'mode':'w'}, 
41          ) 
42       
43 -    def getDescription(self): 
44          return self.rpn 
45   
46   
47 -    def getType(self): 
48          return 'CDEF' 
49   
50   
51 -    def getGraphCmds(self, cmds, context, rrdDir, addSummary, idx, 
52                          multiid=-1, prefix=''): 
53          ''' Build the graphing commands for this graphpoint 
54          ''' 
55          from Products.ZenUtils.Utils import unused 
56          unused(rrdDir) 
57          if not self.rpn: 
58              return cmds 
59          rpn = self.talesEval(self.rpn, context) 
60          return cmds + ['CDEF:%s=%s' % ( 
61                          self.getDsName(self.id, multiid, prefix), rpn)] 
62   
63   
64  InitializeClass(CdefGraphPoint) 
65