Package Products :: Package ZenModel :: Module CdefGraphPoint |
[hide private]
[frames] | no frames]

# Source Code for Module Products.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