AppliedRule.py 8.5 KB
Newer Older
Jean-Paul Smets's avatar
Jean-Paul Smets committed
1 2 3
##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
4
#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
Jean-Paul Smets's avatar
Jean-Paul Smets committed
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from AccessControl import ClassSecurityInfo
from Products.CMFCore.utils import getToolByName
from Products.CMFCore.WorkflowCore import WorkflowMethod
from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
from Products.ERP5Type.XMLObject import XMLObject
34
from Products.ERP5Type.PsycoWrapper import psyco
Jean-Paul Smets's avatar
Jean-Paul Smets committed
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

from zLOG import LOG

class AppliedRule(XMLObject):
    """
      An applied rule holds a list of simulation movements

      An applied rule points to an instance of Rule
      (which defines the actual rule to apply with its parameters)

      An applied rule can expand itself (look at its direct parent
      and take conclusions on what should be inside). This is similar
      to the base_fix_consistency mechanism

      An applied rule can "solve" or "backtrack". In this case
      it looks at its children, looks at the difference between
      target and actual, and takes conclusions on its parent

      All algorithms are implemented by the rule
    """

    # CMF Type Definition
    meta_type = 'ERP5 Applied Rule'
    portal_type = 'Applied Rule'

    # Declarative security
    security = ClassSecurityInfo()
62
    security.declareObjectProtected(Permissions.AccessContentsInformation)
Jean-Paul Smets's avatar
Jean-Paul Smets committed
63 64 65 66 67 68 69 70 71

    # Default Properties
    property_sheets = ( PropertySheet.Base
                      , PropertySheet.XMLObject
                      , PropertySheet.SimpleItem
                      , PropertySheet.CategoryCore
                      , PropertySheet.AppliedRule
                      )

72 73 74 75
    def tpValues(self) :
      """ show the content in the left pane of the ZMI """
      return self.objectValues()

Jean-Paul Smets's avatar
Jean-Paul Smets committed
76 77 78 79 80 81 82 83 84 85 86 87
    security.declareProtected(Permissions.AccessContentsInformation, 'test')
    def test(self):
      """
        Tests if the rule (still) applies
      """
      my_parent = self.aq_parent
      if my_parent is None: # Should be is portal_simulation
        return 1
      else:
        rule = self.getSpecialiseValue()
        return rule.test(my_parent)

88 89 90 91 92 93
    security.declareProtected(Permissions.AccessContentsInformation,
                              'isAccountable')
    def isAccountable(self, movement):
      """Tells wether generated movement needs to be accounted or not."""
      return self.getSpecialiseValue().isAccountable(movement)
    
Jean-Paul Smets's avatar
Jean-Paul Smets committed
94
    security.declareProtected(Permissions.ModifyPortalContent, 'expand')
95
    def expand(self, **kw):
Jean-Paul Smets's avatar
Jean-Paul Smets committed
96 97 98 99 100 101 102 103 104 105
      """
        Expands the current movement downward.

        -> new status -> expanded

        An applied rule can be expanded only if its parent movement
        is expanded.
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
106
        if self.isRootAppliedRule():
107
          # We should capture here a list of url/uids of deliveires to update
108
          rule._v_notify_dict = {}
Sebastien Robin's avatar
Sebastien Robin committed
109
        rule.expand(self,**kw)
110 111 112 113 114 115
        # XXX This part must be done with a interaction workflow is needed.
#       if self.isRootAppliedRule():
#         self.activate(
#                after_method_id=["immediateReindexObject", 
#                                 "recursiveImmediateReindexObject"]).\
#                                   notifySimulationChange(rule._v_notify_dict)
116
        
Jean-Paul Smets's avatar
Jean-Paul Smets committed
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188
    #expand = WorkflowMethod(expand)

    security.declareProtected(Permissions.ModifyPortalContent, 'solve')
    def solve(self, solution_list):
      """
        Solve inconsitency according to a certain number of solutions
        templates. This updates the

        -> new status -> solved

        This applies a solution to an applied rule. Once
        the solution is applied, the parent movement is checked.
        If it does not diverge, the rule is reexpanded. If not,
        diverge is called on the parent movement.
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
        rule.solve(self)

    #solve = WorkflowMethod(solve)

    security.declareProtected(Permissions.ModifyPortalContent, 'diverge')
    def diverge(self):
      """
        -> new status -> diverged

        This basically sets the rule to "diverged"
        and blocks expansion process
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
        rule.diverge(self)

    #diverge = WorkflowMethod(diverge)

    # Solvers
    security.declareProtected(Permissions.View, 'isDivergent')
    def isDivergent(self):
      """
        Returns 1 if divergent rule
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
        return rule.isDivergent(self)
      return 0

    security.declareProtected(Permissions.View, 'getDivergenceList')
    def getDivergenceList(self):
      """
        Returns a list Divergence descriptors
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
        return rule.getDivergenceList(self)
      return ()

    security.declareProtected(Permissions.View, 'getSolverList')
    def getSolverList(self):
      """
        Returns a list Divergence solvers
      """
      rule = self.getSpecialiseValue()
      if rule is not None:
        return rule.getSolverList(self)
      return ()

    # Optimized Reindexing
    security.declareProtected(Permissions.View, 'getMovementIndex')
    def getMovementIndex(self):
      """
        Returns a list of indexable movements
      """
189
      result = [ { 'uid'                        : self.getUid(),
190
                   'id'                         : self.getId(),
191 192 193 194 195 196 197 198
                   'portal_type'                : self.getPortalType(),
                   'url'                        : self.getUrl(),
                   'relative_url'               : self.getRelativeUrl(),
                   'parent_uid'                 : self.getParentUid(),
                   'simulation_state'           : None,
                   'causality_uid'              : self.getCausalityUid(),
                   'specialise_uid'             : self.getSpecialiseUid(),
                  } ]
Jean-Paul Smets's avatar
Jean-Paul Smets committed
199 200 201 202
      for m in self.objectValues():
        result.extend(m.getMovementIndex())
      return result

203 204
    security.declareProtected(Permissions.AccessContentsInformation,
                              'isRootAppliedRule')
Jean-Paul Smets's avatar
Jean-Paul Smets committed
205 206 207 208
    def isRootAppliedRule(self):
      """
        Returns 1 is this is a root applied rule
      """
209
      return self.getParentValue().getMetaType() == "ERP5 Simulation Tool"
Jean-Paul Smets's avatar
Jean-Paul Smets committed
210

211 212
    security.declareProtected(Permissions.AccessContentsInformation,
                              'getRootAppliedRule')
Jean-Paul Smets's avatar
Jean-Paul Smets committed
213
    def getRootAppliedRule(self):
214 215 216 217
      """Return the root applied rule.
      useful if some reindexing is needed from inside
      """
      if self.getParentValue().getMetaType() == "ERP5 Simulation Tool":
Jean-Paul Smets's avatar
Jean-Paul Smets committed
218
        return self
219
      return self.getParentValue().getRootAppliedRule()
Jean-Paul Smets's avatar
Jean-Paul Smets committed
220 221 222

    # Psyco optimizations
    psyco.bind(getMovementIndex)
223

224 225
    security.declareProtected(Permissions.ModifyPortalContent,
                              'notifySimulationChange')
226 227 228 229
    def notifySimulationChange(self, notify_dict):
      for delivery_url in notify_dict.keys():
        delivery_value = self.getPortalObject().restrictedTraverse(delivery_url)
        if delivery_value is None:
230 231 232
          LOG("ERP5 WARNING", 0,
              'Unable to access object %s to notify simulation change' %
               delivery_url)
233 234
        else:
          delivery_value.notifySimulationChange()