Source Code for Module ZenModel.DefGraphPoint

 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__="""DefGraphPoint 
15   
16  Handles GraphPoints that define an rrd DEF 
17  """ 
18   
19  import os 
20  from GraphPoint import GraphPoint 
21  from Globals import InitializeClass 
22   
23   
24 -def manage_addDefGraphPoint(context, id, REQUEST = None): 
25      ''' This is here so than zope will let us copy/paste/rename 
26      graphpoints. 
27      ''' 
28      gp = DefGraphPoint(id) 
29      context._setObject(gp.id, gp) 
30      if REQUEST: 
31          return context.callZenScreen(REQUEST) 
32   
33   
34 -class DefGraphPoint(GraphPoint): 
35   
36      meta_type = 'DefGraphPoint' 
37       
38      rrdFile = '' 
39      dsName = 'ds0' 
40      step = '' 
41      start = '' 
42      end = '' 
43      cFunc = 'AVERAGE' 
44      rFunc = '' 
45       
46      _properties = GraphPoint._properties + ( 
47          {'id':'rrdFile', 'type':'string', 'mode':'w'}, 
48          {'id':'dsName', 'type':'string', 'mode':'w'}, 
49          {'id':'step', 'type':'string', 'mode':'w'}, 
50          {'id':'start', 'type':'string', 'mode':'w'}, 
51          {'id':'end', 'type':'string', 'mode':'w'}, 
52          {'id':'cFunc', 'type':'string', 'mode':'w'}, 
53          {'id':'rFunc', 'type':'string', 'mode':'w'},         
54          ) 
55       
56   
57 -    def getDescription(self): 
58          return '%s %s' % (self.rrdFile, self.dsName) 
59   
60   
61 -    def getType(self): 
62          return 'DEF' 
63   
64   
65 -    def getGraphCmds(self, cmds, context, rrdDir, addSummary, idx,  
66                              multiid=-1, prefix=''): 
67          ''' Build the graphing commands for this graphpoint 
68          ''' 
69          if not (self.rrdFile and self.dsName and self.cFunc): 
70              return cmds 
71           
72          rrdFile = self.talesEval(self.rrdFile, context, rrdDir=rrdDir)     
73               
74          dest = self.getDsName(self.id, multiid, prefix) 
75          gopt = 'DEF:%s=%s:%s:%s' % ( 
76                      dest, 
77                      rrdFile, 
78                      self.dsName, 
79                      self.cFunc) 
80          if self.step: 
81              gopt += ':step=%s' % self.step 
82          if self.start: 
83              start = self.talesEval(self.start, context) 
84              gopt += ':start=%s' % start.replace(':', '\:') 
85          if self.end: 
86              end = self.talesEval(self.end, context) 
87              gopt += ':end=%s' % end.replace(':', '\:') 
88          if self.rFunc: 
89              gopt += ':reduce=%s' % self.rFunc         
90          return cmds + [gopt] 
91   
92   
93  InitializeClass(DefGraphPoint) 
94