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##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
# Jean-Paul Smets-Solanes <jp@nexedi.com>
#
# 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
from Products.ERP5Type.PsycoWrapper import psyco
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()
security.declareObjectProtected(Permissions.AccessContentsInformation)
# Default Properties
property_sheets = ( PropertySheet.Base
, PropertySheet.XMLObject
, PropertySheet.SimpleItem
, PropertySheet.CategoryCore
, PropertySheet.AppliedRule
)
def tpValues(self) :
""" show the content in the left pane of the ZMI """
return self.objectValues()
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)
security.declareProtected(Permissions.AccessContentsInformation,
'isAccountable')
def isAccountable(self, movement):
"""Tells wether generated movement needs to be accounted or not."""
return self.getSpecialiseValue().isAccountable(movement)
security.declareProtected(Permissions.ModifyPortalContent, 'expand')
def expand(self, **kw):
"""
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:
if self.isRootAppliedRule():
# We should capture here a list of url/uids of deliveires to update
rule._v_notify_dict = {}
rule.expand(self,**kw)
# 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)
#expand = WorkflowMethod(expand)
security.declareProtected(Permissions.ModifyPortalContent, 'solve')
def solve(self, solution_list):
"""
Solve inconsistency 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 ()
security.declareProtected(Permissions.AccessContentsInformation,
'isRootAppliedRule')
def isRootAppliedRule(self):
"""
Returns 1 is this is a root applied rule
"""
return self.getParentValue().getMetaType() == "ERP5 Simulation Tool"
security.declareProtected(Permissions.AccessContentsInformation,
'getRootAppliedRule')
def getRootAppliedRule(self):
"""Return the root applied rule.
useful if some reindexing is needed from inside
"""
if self.getParentValue().getMetaType() == "ERP5 Simulation Tool":
return self
return self.getParentValue().getRootAppliedRule()
security.declareProtected(Permissions.ModifyPortalContent,
'notifySimulationChange')
def notifySimulationChange(self, notify_dict):
for delivery_url in notify_dict.keys():
delivery_value = self.getPortalObject().restrictedTraverse(delivery_url)
if delivery_value is None:
LOG("ERP5 WARNING", 0,
'Unable to access object %s to notify simulation change' %
delivery_url)
else:
delivery_value.notifySimulationChange()