Source Code for Module Products.ZenModel.ThresholdGraphPoint

  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__="""ThreshGraphPoint 
 12   
 13  Handles GraphPoints that refer to RRDDataPoints 
 14  """ 
 15   
 16  from GraphPoint import GraphPoint 
 17  from Globals import InitializeClass 
 18  from Products.ZenUtils.deprecated import deprecated 
 19   
 20   
 21  @deprecated 
 22 -def manage_addThresholdGraphPoint(context, id, REQUEST = None): 
 23      ''' This is here so than zope will let us copy/paste/rename 
 24      graphpoints. 
 25      ''' 
 26      gp = ThresholdGraphPoint(id) 
 27      context._setObject(gp.id, gp) 
 28      if REQUEST: 
 29          return context.callZenScreen(REQUEST) 
 30   
 31   
 32 -class ThresholdGraphPoint(GraphPoint): 
 33   
 34      meta_type = 'ThresholdGraphPoint' 
 35     
 36      isThreshold = True 
 37     
 38      threshId = '' 
 39      color = '' 
 40      legend = GraphPoint.DEFAULT_LEGEND 
 41   
 42      _properties = GraphPoint._properties + ( 
 43          {'id':'threshId', 'type':'string', 'mode':'w'}, 
 44          {'id':'color', 'type':'string', 'mode':'w'}, 
 45          {'id':'legend', 'type':'string', 'mode':'w'}, 
 46          ) 
 47       
 48 -    def getThreshClass(self, context): 
 49          ''' Get the related threshold class or None if it doesn't exist 
 50          ''' 
 51          threshClass = None 
 52          if self.graphDef.rrdTemplate(): 
 53              threshClass = self.graphDef.rrdTemplate.thresholds._getOb( 
 54                                                  self.threshId, None) 
 55          return threshClass 
 56   
 57   
 58 -    def getDescription(self): 
 59          return self.threshId 
 60   
 61   
 62 -    def getType(self): 
 63          return 'Threshold' 
 64   
 65   
 66 -    def getRelatedGraphPoints(self, context): 
 67          ''' Return a dictionary where keys are the dp names from the 
 68          threshold and values are a DataPointGraphPoint for that dp or 
 69          None if a RPGP doesn't exist.  If multiple exist for any given 
 70          dp then return just the first one. 
 71          ''' 
 72          related = {} 
 73          threshClass = self.getThreshClass(context) 
 74          if threshClass: 
 75              for dpName in threshClass.dsnames: 
 76                  gps = self.graphDef.getDataPointGraphPoints(dpName) 
 77                  if gps: 
 78                      gp = gps[0] 
 79                  else: 
 80                      gp = None 
 81                  related[dpName] = gp 
 82          return related 
 83   
 84   
 85 -    def getGraphCmds(self, cmds, context, rrdDir, addSummary, idx,  
 86                          multiid=-1, prefix=''): 
 87          ''' Build the graphing commands for this graphpoint 
 88          ''' 
 89          from Products.ZenUtils.Utils import unused 
 90          unused(multiid, rrdDir) 
 91          if getattr(context, 'isFake', False): 
 92              return cmds 
 93          relatedGps = self.getRelatedGraphPoints(context) 
 94          gopts = [] 
 95          threshClass = self.getThreshClass(context) 
 96          if threshClass: 
 97              threshInst = threshClass.createThresholdInstance(context) 
 98              namespace = self.addPrefix(prefix, self.id) 
 99              color = self.getThresholdColor(idx) 
100              legend = self.talesEval(self.legend, context) 
101              template = self.graphDef.rrdTemplate() or None 
102              # We can't get templates when doing mgr 
103              # need to refactor threshinst to not take template. 
104              # Looks like it's not being used anyway. 
105              gopts = threshInst.getGraphElements( 
106                          template, context, gopts, namespace,  
107                          color, legend, relatedGps) 
108          return cmds + gopts 
109   
110   
111  InitializeClass(ThresholdGraphPoint) 
112