Source Code for Module Products.ZenModel.DefGraphPoint

 1  ############################################################################## 
 2  #  
 3  # Copyright (C) Zenoss, Inc. 2007, all rights reserved. 
 4  #  
 5  # This content is made available according to terms specified in 
 6  # License.zenoss under the directory where your Zenoss product is installed. 
 7  #  
 8  ############################################################################## 
 9   
10   
11  __doc__="""DefGraphPoint 
12   
13  Handles GraphPoints that define an rrd DEF 
14  """ 
15   
16  from GraphPoint import GraphPoint 
17  from Globals import InitializeClass 
18   
19   
20 -def manage_addDefGraphPoint(context, id, REQUEST = None): 
21      ''' This is here so than zope will let us copy/paste/rename 
22      graphpoints. 
23      ''' 
24      gp = DefGraphPoint(id) 
25      context._setObject(gp.id, gp) 
26      if REQUEST: 
27          return context.callZenScreen(REQUEST) 
28   
29   
30 -class DefGraphPoint(GraphPoint): 
31   
32      meta_type = 'DefGraphPoint' 
33       
34      rrdFile = '' 
35      dsName = 'ds0' 
36      step = '' 
37      start = '' 
38      end = '' 
39      cFunc = 'AVERAGE' 
40      rFunc = '' 
41       
42      _properties = GraphPoint._properties + ( 
43          {'id':'rrdFile', 'type':'string', 'mode':'w'}, 
44          {'id':'dsName', 'type':'string', 'mode':'w'}, 
45          {'id':'step', 'type':'string', 'mode':'w'}, 
46          {'id':'start', 'type':'string', 'mode':'w'}, 
47          {'id':'end', 'type':'string', 'mode':'w'}, 
48          {'id':'cFunc', 'type':'string', 'mode':'w'}, 
49          {'id':'rFunc', 'type':'string', 'mode':'w'},         
50          ) 
51       
52   
53 -    def getDescription(self): 
54          return '%s %s' % (self.rrdFile, self.dsName) 
55   
56   
57 -    def getType(self): 
58          return 'DEF' 
59   
60   
61 -    def getGraphCmds(self, cmds, context, rrdDir, addSummary, idx,  
62                              multiid=-1, prefix=''): 
63          ''' Build the graphing commands for this graphpoint 
64          ''' 
65          if not (self.rrdFile and self.dsName and self.cFunc): 
66              return cmds 
67           
68          rrdFile = self.talesEval(self.rrdFile, context, rrdDir=rrdDir)     
69               
70          dest = self.getDsName(self.id, multiid, prefix) 
71          gopt = 'DEF:%s=%s:%s:%s' % ( 
72                      dest, 
73                      rrdFile, 
74                      self.dsName, 
75                      self.cFunc) 
76          if self.step: 
77              gopt += ':step=%s' % self.step 
78          if self.start: 
79              start = self.talesEval(self.start, context) 
80              gopt += ':start=%s' % start.replace(':', '\:') 
81          if self.end: 
82              end = self.talesEval(self.end, context) 
83              gopt += ':end=%s' % end.replace(':', '\:') 
84          if self.rFunc: 
85              gopt += ':reduce=%s' % self.rFunc         
86          return cmds + [gopt] 
87   
88   
89  InitializeClass(DefGraphPoint) 
90