Source Code for Module ZenModel.RRDDataPoint

  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__="""RRDDataPoint 
 15   
 16  Defines attributes for how a datasource will be graphed 
 17  and builds the nessesary DEF and CDEF statements for it. 
 18   
 19  $Id:$""" 
 20   
 21  __version__ = "$Revision:$"[11:-2] 
 22   
 23  import os 
 24   
 25  from Globals import DTMLFile 
 26  from Globals import InitializeClass 
 27  from AccessControl import ClassSecurityInfo, Permissions 
 28  from Acquisition import aq_parent 
 29   
 30  from Products.ZenRelations.RelSchema import * 
 31   
 32  from ZenModelRM import ZenModelRM 
 33  from ZenPackable import ZenPackable 
 34   
 35 -def manage_addRRDDataPoint(context, id, REQUEST = None): 
 36      """make a RRDDataPoint""" 
 37      dp = RRDDataPoint(id) 
 38      context._setObject(dp.id, dp) 
 39      if REQUEST is not None: 
 40          REQUEST['RESPONSE'].redirect(context.absolute_url()+'/manage_main') 
 41                                        
 42  #addRRDDataPoint = DTMLFile('dtml/addRRDDataPoint',globals()) 
 43   
 44  SEPARATOR = '_' 
 45   
 46 -def convertMethodParameter(value, type): 
 47      if type == "integer": 
 48          return int(value) 
 49      elif type == "string": 
 50          return str(value) 
 51      elif type == "float": 
 52          return float(value) 
 53      else: 
 54          raise TypeError('Unsupported method parameter type: %s' % type) 
 55   
 56 -class RRDDataPointError(Exception): pass 
 57   
 58 -class RRDDataPoint(ZenModelRM, ZenPackable): 
 59   
 60      meta_type = 'RRDDataPoint' 
 61     
 62      rrdtypes = ('COUNTER', 'GAUGE', 'DERIVE', 'ABSOLUTE') 
 63       
 64      createCmd = "" 
 65      rrdtype = 'GAUGE' 
 66      isrow = True 
 67      rrdmin = None 
 68      rrdmax = None 
 69       
 70      ## These attributes can be removed post 2.1 
 71      ## They should remain in 2.1 so the migrate script works correctly 
 72      linetypes = ('', 'AREA', 'LINE') 
 73      rpn = "" 
 74      color = "" 
 75      linetype = '' 
 76      limit = -1 
 77      format = '%5.2lf%s' 
 78       
 79   
 80      _properties = ( 
 81          {'id':'rrdtype', 'type':'selection', 
 82          'select_variable' : 'rrdtypes', 'mode':'w'}, 
 83          {'id':'createCmd', 'type':'text', 'mode':'w'}, 
 84          {'id':'isrow', 'type':'boolean', 'mode':'w'}, 
 85          {'id':'rrdmin', 'type':'string', 'mode':'w'}, 
 86          {'id':'rrdmax', 'type':'string', 'mode':'w'}, 
 87          ) 
 88   
 89   
 90      _relations = ZenPackable._relations + ( 
 91          ("datasource", ToOne(ToManyCont,"Products.ZenModel.RRDDataSource","datapoints")), 
 92          ) 
 93       
 94      # Screen action bindings (and tab definitions) 
 95      factory_type_information = (  
 96      {  
 97          'immediate_view' : 'editRRDDataPoint', 
 98          'actions'        : 
 99          (  
100              { 'id'            : 'edit' 
101              , 'name'          : 'Data Point' 
102              , 'action'        : 'editRRDDataPoint' 
103              , 'permissions'   : ( Permissions.view, ) 
104              }, 
105          ) 
106      }, 
107      ) 
108   
109      security = ClassSecurityInfo() 
110   
111   
112 -    def breadCrumbs(self, terminator='dmd'): 
113          """Return the breadcrumb links for this object add ActionRules list. 
114          [('url','id'), ...] 
115          """ 
116          from RRDTemplate import crumbspath 
117          crumbs = super(RRDDataPoint, self).breadCrumbs(terminator) 
118          return crumbspath(self.rrdTemplate(), crumbs, -3) 
119   
120   
121   
122      security.declareProtected('View', 'getPrimaryUrlPath') 
123 -    def getPrimaryUrlPath(self): 
124          """get the physicalpath as a url""" 
125          return self.absolute_url_path() 
126   
127   
128 -    def name(self): 
129          """Include the data source name in our name, 
130          useful for lists of DataPoints""" 
131          return '%s%c%s' % (self.datasource().id, SEPARATOR, self.id) 
132   
133 -    def getRRDCreateCommand(self, performanceConf): 
134          """Get the create command. 
135          Return '' for the default from performanceConf""" 
136          if self.createCmd: 
137              return self.createCmd 
138          return '' 
139   
140   
141      security.declareProtected('Manage DMD', 'zmanage_editProperties') 
142 -    def zmanage_editProperties(self, REQUEST=None): 
143          """Edit a ZenModel object and return its proper page template 
144          """ 
145          if REQUEST: 
146              msgs = [] 
147              for optional in 'rrdmin', 'rrdmax': 
148                  v = REQUEST.form.get(optional, None) 
149                  if v: 
150                      try: 
151                          REQUEST.form[optional] = long(v) 
152                      except ValueError: 
153                          msgs.append('Unable to convert "%s" to a number' % v) 
154              msgs = ', '.join(msgs) 
155              if msgs: 
156                  REQUEST['message'] = msgs[0].capitalize() + msgs[1:] + ", at Time:" 
157                  return self.callZenScreen(REQUEST, False) 
158           
159          return ZenModelRM.zmanage_editProperties(self, REQUEST) 
160