Package Products :: Package ZenModel :: Module VdefGraphPoint |
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# Source Code for Module Products.ZenModel.VdefGraphPoint

     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__="""VdefGraphPoint
    15
    16  Handles GraphPoints that define an rrd VDEF
    17  """
    18
    19  from GraphPoint import GraphPoint
    20  from Globals import InitializeClass
    21
    22
    23 -def manage_addVdefGraphPoint(context, id, REQUEST = None):
    24      ''' This is here so than zope will let us copy/paste/rename
    25      graphpoints.
    26      '''
    27      gp = VdefGraphPoint(id)
    28      context._setObject(gp.id, gp)
    29      if REQUEST:
    30          return context.callZenScreen(REQUEST)
    31
    32
    33 -class VdefGraphPoint(GraphPoint):
    34
    35      meta_type = 'VdefGraphPoint'
    36
    37      rpn = ''
    38
    39      _properties = GraphPoint._properties + (
    40          {'id':'rpn', 'type':'string', 'mode':'w'},
    41          )
    42
    43
    44 -    def getDescription(self):
    45          return self.rpn
    46
    47
    48 -    def getType(self):
    49          return 'VDEF'
    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          from Products.ZenUtils.Utils import unused
    57          unused(multiid, prefix, rrdDir)
    58          if not self.rpn:
    59              return cmds
    60          rpn = self.talesEval(self.rpn, context)
    61          return cmds + ['VDEF:%s=%s' % (
    62                          self.getDsName(self.id, multiid, prefix), rpn)]
    63
    64
    65  InitializeClass(VdefGraphPoint)
    66