- modified TransformationRule to use Business Process

  instead of Supply Chain.
- added/changed some features for above modified.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@27271 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessProcess.py

@@ -185,3 +185,11 @@ class BusinessProcess(Path, XMLObject):
 
   def isStopDateReferential(self):
     return self.getReferentialDate() == 'stop_date'
+
+  def getTradePhaseList(self):
+    """
+      Returns all trade_phase of this business process
+    """
+    path_list = self.objectValues(portal_type=self.getPortalBusinessPathTypeList())
+    return filter(None, [path.getTradePhase()
+                         for path in path_list])

product/ERP5/Document/BusinessState.py

@@ -161,8 +161,10 @@ class BusinessState(XMLObject):
     """
     remaining_trade_phase_list = []
     for path in self.getPredecessorRelatedValueList():
-      if not (path.isCompleted(explanation) or
-              path.isPartiallyCompleted(explanation)):
+      # XXX When no simulations related to path, what should path.isCompleted return?
+      #     if True we don't have way to add remaining trade phases to new movement
+      if not (path._getRelatedSimulationMovementList(explanation) and
+              path.isCompleted(explanation)):
         remaining_trade_phase_list += path.getTradePhaseValueList()
 
       # collect to successor direction recursively

product/ERP5/Document/Transformation.py

@@ -42,6 +42,8 @@ from Products.ERP5.Document.Predicate import Predicate
 from Products.CMFCategory.Renderer import Renderer
 from Products.ERP5.AggregatedAmountList import AggregatedAmountList
 
+from zLOG import LOG, WARNING
+
 class Transformation(XMLObject, Predicate, Variated):
     """
       Build of material - contains a list of transformed resources
@@ -223,6 +225,8 @@ class Transformation(XMLObject, Predicate, Variated):
     security.declareProtected(Permissions.AccessContentsInformation, 
                               'getAggregatedAmountList')
     def getAggregatedAmountList(self, context=None, REQUEST=None,
+                                trade_phase_list=None,
+                                # obsolete, use trade_phase_list instead
                                 ind_phase_url_list=None,
                                 rejected_resource_uid_list=None, 
                                 context_quantity=0,**kw):
@@ -247,8 +251,14 @@ class Transformation(XMLObject, Predicate, Variated):
       transformation_line_list = []
       for transformation in ([self]+template_transformation_list):
         transformation_line_list.extend(transformation.objectValues())
+      # Get only lines related to a precise trade_phase
+      if trade_phase_list is not None:
+        transformation_line_list = filter(
+            lambda line: line.getTradePhase() in trade_phase_list,
+            transformation_line_list)
       # Get only lines related to a precise industrial_phase
       if ind_phase_url_list is not None:
+        LOG("Transformation", WARNING, "ind_phase_list is obsolete")
         new_transf_line_list = []
         for line in transformation_line_list:
           ind_ph = line.getIndustrialPhaseValue()

product/ERP5/Document/TransformationRule.py

+# -*- coding:utf-8 -*-
 ##############################################################################
 #
-# Copyright (c) 2002, 2005 Nexedi SARL and Contributors. All Rights Reserved.
+# Copyright (c) 2002-2009 Nexedi SARL and Contributors. All Rights Reserved.
 #                    Jean-Paul Smets-Solanes <jp@nexedi.com>
 #                    Romain Courteaud <romain@nexedi.com>
 #
@@ -27,29 +28,96 @@
 #
 ##############################################################################
 
+from ExtensionClass import Base
 from AccessControl import ClassSecurityInfo
 from Acquisition import aq_base, aq_parent, aq_inner, aq_acquire
 from Products.CMFCore.utils import getToolByName
 
 from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
 from Products.ERP5.Document.Rule import Rule
+from Products.ERP5.Document.SimulationMovement import SimulationMovement
 from Products.ERP5Type.Errors import TransformationRuleError
-from Products.ERP5.Document.TransformationSourcingRule import\
-                                            TransformationSourcingRuleMixin
 
-from zLOG import LOG
+class TransformationRuleMixin(Base):
+  security = ClassSecurityInfo()
+
+  security.declareProtected(Permissions.View, 'getTransformation')
+  def getTransformation(self, movement=None, applied_rule=None):
+    """
+    Return transformation related to used by the applied rule.
+    """
+    if movement is None and applied_rule is not None:
+      movement = applied_rule.getParentValue()
+
+    order_movement = movement.getRootSimulationMovement().getOrderValue()
+    explanation = self.getExplanation(movement=movement,
+                                      applied_rule=applied_rule)
+    # find line recursively
+    order_line = order_movement
+    while order_line.getParentValue() != explanation:
+      order_line = order_line.getParentValue()
+
+    script = order_line._getTypeBasedMethod('_getTransformation')
+    if script is not None:
+      transformation = script()
+    else:
+      line_transformation = order_line.objectValues(
+        portal_type=self.getPortalTransformationTypeList())
+      if len(line_transformation) == 1:
+        transformation = line_transformation[0]
+      else:
+        transformation = order_line.getSpecialiseValue(
+          portal_type=self.getPortalTransformationTypeList())
 
-class TransformationRule(TransformationSourcingRuleMixin, Rule):
+    if transformation.getResource() == movement.getResource():
+      return transformation
+
+  security.declareProtected(Permissions.View, 'getBusinessProcess')
+  def getBusinessProcess(self, **kwargs):
+    """
+    Return business process related to root causality.
+    """
+    explanation = self.getExplanation(**kwargs)
+    if explanation is not None:
+      specialise = explanation.getSpecialiseValue()
+      business_process_type_list = self.getPortalBusinessProcessTypeList()
+      # because trade condition can be specialised
+      while specialise is not None and \
+            specialise.getPortalType() not in business_process_type_list:
+        specialise = specialise.getSpecialiseValue()
+      return specialise
+
+  security.declareProtected(Permissions.View, 'getRootExplanation')
+  def getRootExplanation(self, business_process):
     """
-      Order Rule object make sure an Order in the similation
-      is consistent with the real order
+    the method of ProductionOrderRule returns most tail path of business process
     """
+    if business_process is not None:
+      for business_path in business_process.contentValues(
+        portal_type=self.getPortalBusinessPathTypeList()):
+        if business_path.isDeliverable():
+          return business_path
+
+  security.declareProtected(Permissions.View, 'getExplanation')
+  def getExplanation(self, movement=None, applied_rule=None):
+    if applied_rule is not None:
+      return applied_rule.getRootAppliedRule().getCausalityValue()
+    else:
+      return movement.getRootSimulationMovement()\
+             .getOrderValue().getExplanationValue()
+
+
+class TransformationRule(TransformationRuleMixin, Rule):
+  """
+  """
+
   # CMF Type Definition
   meta_type = 'ERP5 Transformation Rule'
   portal_type = 'Transformation Rule'
   # Declarative security
   security = ClassSecurityInfo()
   security.declareObjectProtected(Permissions.AccessContentsInformation)
+
   __implements__ = ( Interface.Predicate,
                      Interface.Rule )
   # Default Properties
@@ -59,266 +127,179 @@ class TransformationRule(TransformationSourcingRuleMixin, Rule):
                       , PropertySheet.DublinCore
                       , PropertySheet.Task
                       )
-    # Class variable 
-    simulation_movement_portal_type = "Simulation Movement"
 
-    # Simulation workflow
+  def getHeadProductionPathList(self, transformation, business_process):
+    """
+    Return list of path which is head of transformation trade_phases
+
+    this method assumes trade_phase of head paths is only one
+    """
+    production_trade_phase_set = set([amount.getTradePhase()
+                                      for amount in transformation\
+                                      .objectValues(portal_type='Transformation Transformed Resource')])
+    head_path_list = []
+    for state in business_process.objectValues(
+      portal_type=self.getPortalBusinessStateTypeList()):
+      if len(state.getSuccessorRelatedValueList()) == 0:
+        head_path_list.extend(state.getPredecessorRelatedValueList())
+
+    result_list = []
+    for path in head_path_list:
+      result_list += self._getHeadPathByTradePhaseList(path, production_trade_phase_set)
+
+    return map(lambda t: t[0], filter(lambda t: t != (None, None), result_list))
+
+  def _getHeadPathByTradePhaseList(self, path, trade_phase_set):
+    _set = set(path.getTradePhaseList())
+    if _set & trade_phase_set:
+      return [(path, _set & trade_phase_set)]
+
+    successor_node = path.getSuccessorValue()
+    if successor_node is None:
+      return [(None, None)]
+
+    _list = []
+    for next_path in successor_node.getPredecessorRelatedValueList():
+      _list += self._getHeadPathByTradePhaseList(next_path, trade_phase_set)
+    return _list
+
   security.declareProtected(Permissions.ModifyPortalContent, 'expand')
   def expand(self, applied_rule, **kw):
     """
-        Expands the current movement downward.
-        -> new status -> expanded
-        An applied rule can be expanded only if its parent movement
-        is expanded.
     """
+
     parent_movement = applied_rule.getParentValue()
-      # Get production node and production section
-      production = parent_movement.getSource()
-      production_section = parent_movement.getSourceSection()
-      # Get the current supply link used to calculate consumed resource
-      # The current supply link is calculated from the parent AppliedRule.
-      supply_chain = self.getSupplyChain(parent_movement.getParentValue())
-      parent_supply_link = self.getCurrentSupplyLink(parent_movement)
-      current_supply_link_list = supply_chain.\
-                     getPreviousProductionSupplyLinkList(parent_supply_link)
-      if len(current_supply_link_list) != 1:
-        # We shall no pass here.
-        # The test method returned a wrong value !
+
+    transformation = self.getTransformation(movement=parent_movement)
+    business_process = self.getBusinessProcess(movement=parent_movement)
+    explanation = self.getExplanation(movement=parent_movement)
+
+    # get all trade_phase of the Business Process
+    trade_phase_list = business_process.getTradePhaseList()
+
+    # get head of production path from business process with trade_phase_list
+    head_production_path_list = self.getHeadProductionPathList(transformation,
+                                                               business_process)
+
+    product_resource = transformation.getResource()
+    product_quantity = parent_movement.getNetQuantity()
+    product_quantity_unit = parent_movement.getQuantityUnit()
+    product_variation_category_list = parent_movement.getVariationCategoryList()
+    product_variation_property_dict = parent_movement.getVariationPropertyDict()
+
+    amount_dict = {}
+    # XXX Transformation.getAggregatedAmountList is useless, it can not have trade_phase, because Amout.
+    for amount in transformation.objectValues(portal_type='Transformation Transformed Resource'):
+      phase = amount.getTradePhase()
+      amount_dict.setdefault(phase, [])
+      amount_dict[phase].append(amount)
+
+    product_destination = None
+    for (phase, amount_list) in amount_dict.items():
+      if phase not in trade_phase_list:
         raise TransformationRuleError,\
-              "Expand must not be called on %r" %\
-                  applied_rule.getRelativeUrl()
-      else:
-        current_supply_link = current_supply_link_list[0]
-        # Generate produced movement
-        movement_dict = self._expandProducedResource(applied_rule,
-                                                     production,
-                                                     production_section,
-                                                     current_supply_link)
-        # Generate consumed movement
-        consumed_mvt_dict = self._expandConsumedResource(applied_rule,
-                                                         production,
-                                                         production_section,
-                                                         current_supply_link)
-        movement_dict.update(consumed_mvt_dict)
-        # Finally, build movement
-        self._buildMovementList(applied_rule, movement_dict, **kw)
-      # Expand each movement created
-      Rule.expand(self, applied_rule, **kw)
+              "Trade phase %r is not part of Business Process %r" % (phase, business_process)
 
-    def _expandProducedResource(self, applied_rule, production,
-                                production_section, current_supply_link):
-      """
-        Produced resource.
-        Create a movement for the resource produced by the transformation.
-        Only one produced movement can be created.
-      """
-      parent_movement = applied_rule.getParentValue()
-      stop_date = parent_movement.getStartDate()
-      produced_movement_dict = {
-        'pr': {
-          "resource": parent_movement.getResource(),
-          # XXX what is lost quantity ?
-          "quantity": parent_movement.getQuantity(),# + lost_quantity,
-          "quantity_unit": parent_movement.getQuantityUnit(),
-          "variation_category_list":\
-                        parent_movement.getVariationCategoryList(),
-          "variation_property_dict": \
-                        parent_movement.getVariationPropertyDict(),
-          "source_list": (),
-          "source_section_list": (),
-          "destination": production,
-          "destination_section": production_section,
-          "deliverable": 1,
-          'start_date': current_supply_link.calculateStartDate(stop_date),
-          'stop_date': stop_date,
-          'causality_value': current_supply_link,
-        }
-      }
-      return produced_movement_dict
-
-    def _expandConsumedResource(self, applied_rule, production,
-                                production_section, current_supply_link):
-      """
-        Consumed resource.
-        Create a movement for each resource consumed by the transformation,
-        and for the previous variation of the produced resource.
-      """
-      # Calculate all consumed resource
-      # Store each value in a dictionnary before created them.
-      # { movement_id: {property_name: property_value,} ,}
-      consumed_movement_dict = {}
-      parent_movement = applied_rule.getParentValue()
-      supply_chain = self.getSupplyChain(parent_movement.getParentValue())
-      # Consumed previous variation
-      previous_variation_dict = self._expandConsumedPreviousVariation(
-                                                        applied_rule, 
-                                                        production, 
-                                                        production_section,
-                                                        supply_chain,
-                                                        current_supply_link)
-      consumed_movement_dict.update(previous_variation_dict)
-      # Consumed raw materials
-      raw_material_dict = self._expandConsumedRawMaterials(
-                                                        applied_rule, 
-                                                        production, 
-                                                        production_section,
-                                                        supply_chain,
-                                                        current_supply_link)
-      consumed_movement_dict.update(raw_material_dict)
-      return consumed_movement_dict
-
-    def _expandConsumedPreviousVariation(self, applied_rule, production,
-                                         production_section, supply_chain,
-                                         current_supply_link):
-      """
-        Create a movement for the previous variation of the produced resource.
-      """
-      id_count = 1
-      consumed_movement_dict = {}
-      parent_movement = applied_rule.getParentValue()
-      # Calculate the variation category list of parent movement
-      base_category_list = parent_movement.getVariationBaseCategoryList()
-      if "industrial_phase" in base_category_list:
-        # We do not want to get the industrial phase variation
-        base_category_list.remove("industrial_phase")
-      category_list = parent_movement.getVariationCategoryList(
-                                  base_category_list=base_category_list)
-      # Calculate the previous variation
-      for previous_supply_link in supply_chain.\
-            getPreviousSupplyLinkList(current_supply_link):
-        previous_ind_phase_list = supply_chain.\
-            getPreviousProductionIndustrialPhaseList(previous_supply_link,
-                                                     all=1)
-        if previous_ind_phase_list != []:
-          # Industrial phase is a category
-          ind_phase_list = [x.getRelativeUrl() for x in \
-                            previous_ind_phase_list]
-          consumed_mvt_id = "%s_%s" % ("mr", id_count)
-          id_count += 1
-          stop_date = parent_movement.getStartDate()
-          consumed_movement_dict[consumed_mvt_id] = {
-            'start_date': current_supply_link.calculateStartDate(stop_date),
-            'stop_date': stop_date,
-            "resource": parent_movement.getResource(),
-            # XXX Is the quantity value correct ?
-            "quantity": parent_movement.getNetQuantity(), # getNetQuantity to support efficency from transformation
-            "quantity_unit": parent_movement.getQuantityUnit(),
-            "destination_list": (),
-            "destination_section_list": (),
-            "source": production,
-            "source_section": production_section,
-            "deliverable": 1,
-            "variation_category_list": category_list+ind_phase_list,
-            "variation_property_dict": \
-                        parent_movement.getVariationPropertyDict(),
-            'causality_value': current_supply_link,
-            }
-      return consumed_movement_dict
-
-    def _expandConsumedRawMaterials(self, applied_rule, production,
-                                    production_section, supply_chain,
-                                    current_supply_link):
+      phase_path_list = business_process.getPathValueList(phase)
       """
-        Create a movement for each resource consumed by the transformation,
+      XXX: In this context, we assume quantity as ratio,
+      but this notion is consistent with transformation.
       """
-      parent_movement = applied_rule.getParentValue()
-      # Calculate the context for getAggregatedAmountList
-      base_category_list = parent_movement.getVariationBaseCategoryList()
-      if "industrial_phase" in base_category_list:
-        # We do not want to get the industrial phase variation
-        base_category_list.remove("industrial_phase")
-      category_list = parent_movement.getVariationCategoryList(
-                                  base_category_list=base_category_list)
-      # Get the transformation to use
-      transformation = self.getTransformation(applied_rule)
-      # Generate the fake context 
-      tmp_context = parent_movement.asContext(
-                   context=parent_movement, 
-                   REQUEST={'categories':category_list})
-      # Calculate the industrial phase list
-      previous_ind_phase_list = supply_chain.\
-          getPreviousPackingListIndustrialPhaseList(current_supply_link)
-      ind_phase_id_list = [x.getRelativeUrl() for x in previous_ind_phase_list]
-      # Call getAggregatedAmountList
-      # XXX expand failed if transformation is not defined.
-      # Do we need to catch the exception ?
-      amount_list = transformation.getAggregatedAmountList(
-                   tmp_context,
-                   ind_phase_url_list=ind_phase_id_list)
-      # Add entries in the consumed_movement_dict
-      consumed_movement_dict = {}
-      for amount in amount_list:
-        consumed_mvt_id = "%s_%s" % ("cr", amount.getId())
-        stop_date = parent_movement.getStartDate()
-        resource_price = amount.getResourcePrice()
-        price = None
-        if resource_price is not None:
-          price = amount.getNetQuantity() * resource_price # getNetQuantity to support efficency from transformation
-        consumed_movement_dict[consumed_mvt_id] = {
-          'start_date': current_supply_link.calculateStartDate(stop_date),
-          'stop_date': stop_date,
-          "resource": amount.getResource(),
-          "variation_category_list":\
-                        amount.getVariationCategoryList(),
-          "variation_property_dict": \
-                        amount.getVariationPropertyDict(),
-          "quantity": amount.getNetQuantity() * parent_movement.getQuantity(), # getNetQuantity to support efficency from transformation
-          "price": price,
-          "quantity_unit": amount.getQuantityUnit(),
-          "destination_list": (),
-          "destination_section_list": (),
-          "source": production,
-          "source_section": production_section,
-          "deliverable": 1,
-          'causality_value': current_supply_link,
-        }
-      return consumed_movement_dict
-
-    security.declareProtected(Permissions.ModifyPortalContent, 'solve')
-    def solve(self, applied_rule, solution_list):
+      if sum(map(lambda path: path.getQuantity(), phase_path_list)) != 1:
+        raise TransformationRuleError,\
+              "sum ratio of Trade Phase %r of Business Process %r is not one" % (phase, business_process)
+
+      for path in phase_path_list:
+        start_date = path.getExpectedStartDate(explanation)
+        stop_date = path.getExpectedStopDate(explanation)
+        predecessor_remaining_phase_list = path.getPredecessorValue()\
+                                           .getRemainingTradePhaseList(explanation,
+                                                                       trade_phase_list=trade_phase_list)
+        successor_remaining_phase_list = path.getSuccessorValue()\
+                                         .getRemainingTradePhaseList(explanation,
+                                                                     trade_phase_list=trade_phase_list)
+        if len(successor_remaining_trade_phase_list) == 0:
           """
-        Solve inconsistency according to a certain number of solutions
-        templates. This updates the
+            Destinations of last paths for transformation must be same,
+            because paths for transformation must be integrated finally,
 
-        -> new status -> solved
+            valid graph
+            a --
+                \--
+                   X- b
+                /--
+            c --
 
-        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.
-      """
+            invalid graph
+            a ------- b
 
-    security.declareProtected(Permissions.ModifyPortalContent, 'diverge')
-    def diverge(self, applied_rule):
+            c ------- d
           """
-        -> new status -> diverged
+          if product_destination is None:
+            product_destination = path.getDestination()
+          if product_destination != path.getDestination():
+            raise TransformationRuleError,\
+                  "Transformation %r is not integrated on Business Process %r" % (transformation, business_process)
+        else:
+          # partial product movement
+          movement = applied_rule.newContent(portal_type="Simulation Movement")
+          movement.edit(causality_value=path,
+                        start_date=path.getExpectedStartDate(explanation),
+                        stop_date=path.getExpectedStopDate(explanation),
+                        resource=product_resource,
+                        quantity=-(product_quantity * path.getQuantity()),
+                        quantity_unit=product_quantity_unit,
+                        variation_category_list=product_variation_category_list,
+                        variation_property_dict=product_variation_property_dict,
+                        destination=path.getDestination(),
+                        #destination_section=???,
+                        trade_phase_value_list=successor_remaining_trade_phase_list)
 
-        This basically sets the rule to "diverged"
-        and blocks expansion process
-      """
+        # when the path is part of production but not first, consume previous partial product
+        if path not in head_production_path_list:
+          # consumed partial product movement
+          movement = applied_rule.newContent(portal_type="Simulation Movement")
+          movement.edit(causality_value=path,
+                        start_date=start_date,
+                        stop_date=stop_date,
+                        resource=product_resource,
+                        quantity=product_quantity * path.getQuantity(),
+                        quantity_unit=product_quantity_unit,
+                        variation_category_list=product_variation_category_list,
+                        variation_property_dict=product_variation_property_dict,
+                        source=path.getSource(),
+                        #source_section=???,
+                        trade_phase_value_list=predecessor_remaining_trade_phase_list)
 
-#    # Solvers
-#    security.declareProtected(Permissions.View, 'isDivergent')
-#    def isDivergent(self, applied_rule):
-#      """
-#        Returns 1 if divergent rule
-#      """
-#
-#    security.declareProtected(Permissions.View, 'getDivergenceList')
-#    def getDivergenceList(self, applied_rule):
-#      """
-#        Returns a list Divergence descriptors
-#      """
-#
-#    security.declareProtected(Permissions.View, 'getSolverList')
-#    def getSolverList(self, applied_rule):
-#      """
-#        Returns a list Divergence solvers
-#      """
-
-    # Deliverability / orderability
-    def isDeliverable(self, m):
-      return 1
-    def isOrderable(self, m):
-      return 0
+        # consumption movement
+        for amount in amount_list:
+          consumed_resource = amount.getResource()
+          consumed_quantity = product_quantity * amount.getQuantity() / amount.getEfficiency()
+          consumed_quantity_unit = amount.getQuantityUnit()
+
+          # consume resource
+          movement = applied_rule.newContent(portal_type="Simulation Movement")
+          movement.edit(causality_value=path,
+                        start_date=start_date,
+                        stop_date=stop_date,
+                        resource=consumed_resource,
+                        quantity=consumed_quantity * path.getQuantity(),
+                        quantity_unit=consumed_quantity_unit,
+                        source=path.getSource(),
+                        #source_section=???,
+                        trade_phase=path.getTradePhase())
 
+    # product movement
+    movement = applied_rule.newContent(portal_type="Simulation Movement")
+    movement.edit(start_date=path.getExpectedStartDate(explanation),
+                  stop_date=path.getExpectedStopDate(explanation),
+                  resource=product_resource,
+                  quantity=-(product_quantity),
+                  quantity_unit=product_quantity_unit,
+                  variation_category_list=product_variation_category_list,
+                  variation_property_dict=product_variation_property_dict,
+                  destination=product_destination,
+                  #destination_section=???,
+                  )
+
+    Rule.expand(self, applied_rule, **kw)

product/ERP5/Interface/IBusinessProcess.py

@@ -85,3 +85,7 @@ class IBusinessProcess(IBusinessCompletable, IBusinessBuildable):
     'explanation' is the Order or Item or Document which is the
     cause of a root applied rule in the simulation
     """
+
+  def getTradePhaseList(self):
+    """Returns list of all trade_phase of this Business Process
+    """

product/ERP5/tests/testMRP.py

+# -*- coding: utf-8 -*-
+##############################################################################
+# Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
+#          Yusuke Muraoka <yusuke@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility 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
+# guarantees 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.
+#
+##############################################################################
+
+import unittest
+import transaction
+
+from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
+from AccessControl.SecurityManagement import newSecurityManager
+from DateTime import DateTime
+
+from Products.ERP5Type.tests.Sequence import SequenceList
+from Products.CMFCore.utils import getToolByName
+from Products.ERP5Type.tests.utils import reindex
+
+from Products.ERP5.Document.TransformationRule import TransformationRule
+
+from Products.ERP5.tests.testBPMCore import TestBPMMixin
+
+class TestMRPMixin(TestBPMMixin):
+  transformation_portal_type = 'Transformation'
+  transformed_resource_portal_type = 'Transformation Transformed Resource'
+  product_portal_type = 'Product'
+
+  def setUpOnce(self):
+    self.portal = self.getPortalObject()
+
+  def invalidateRules(self):
+    """
+    do reversely of validateRules
+    """
+    rule_tool = self.getRuleTool()
+    for rule in rule_tool.contentValues(
+      portal_type=rule_tool.getPortalRuleTypeList()):
+      rule.invalidate()
+    
+  def createTransformation(self):
+    module = self.portal.getDefaultModule(
+        portal_type=self.transformation_portal_type)
+    return module.newContent(portal_type=self.transformation_portal_type)
+
+  def createTransformedResource(self, transformation=None):
+    if transformation is None:
+      transformation = self.createTransformation()
+    return transformation.newContent(
+      portal_type=self.transformed_resource_portal_type)
+
+  @reindex
+  def createCategories(self):
+    category_tool = getToolByName(self.portal, 'portal_categories')
+    self.createCategoriesInCategory(category_tool.base_amount, ['weight'])
+    self.createCategoriesInCategory(category_tool.base_amount.weight, ['kg'])
+    self.createCategoriesInCategory(category_tool.trade_phase, ['mrp',])
+    self.createCategoriesInCategory(category_tool.trade_phase.mrp,
+        ['p' + str(i) for i in range(5)]) # phase0 ~ 4
+
+  def createProduct(self):
+    module = self.portal.getDefaultModule(
+      portal_type=self.product_portal_type)
+    return module.newContent(portal_type=self.product_portal_type)
+
+  @reindex
+  def createDefaultTransformation(self):
+    resource1 = self.createProduct()
+    resource2 = self.createProduct()
+    resource3 = self.createProduct()
+    resource4 = self.createProduct()
+    resource5 = self.createProduct()
+    transformation = self.createTransformation()
+    amount1 = self.createTransformedResource(transformation=transformation)
+    amount2 = self.createTransformedResource(transformation=transformation)
+    amount3 = self.createTransformedResource(transformation=transformation)
+    amount4 = self.createTransformedResource(transformation=transformation)
+
+    resource1.edit(title='product', quantity_unit_list=['weight/kg'])
+    resource2.edit(title='triangle', quantity_unit_list=['weight/kg'])
+    resource3.edit(title='box', quantity_unit_list=['weight/kg'])
+    resource4.edit(title='circle', quantity_unit_list=['weight/kg'])
+    resource5.edit(title='banana', quantity_unit_list=['weight/kg'])
+
+    transformation.edit(resource_value=resource1)
+    amount1.edit(resource_value=resource2, quantity=3,
+                 quantity_unit_list=['weight/kg'], trade_phase='mrp/p2')
+    amount2.edit(resource_value=resource3, quantity=1,
+                 quantity_unit_list=['weight/kg'], trade_phase='mrp/p2')
+    amount3.edit(resource_value=resource4, quantity=4,
+                 quantity_unit_list=['weight/kg'], trade_phase='mrp/p3')
+    amount4.edit(resource_value=resource5, quantity=1,
+                 quantity_unit_list=['weight/kg'], trade_phase='mrp/p3')
+    return transformation
+
+  @reindex
+  def createSimpleBusinessProcess(self):
+    """    mrp/p2                    mrp/3
+    ready -------- partial_produced ------- done
+    """
+    business_process = self.createBusinessProcess()
+    business_path_p2 = self.createBusinessPath(business_process)
+    business_path_p3 = self.createBusinessPath(business_process)
+    business_state_ready = self.createBusinessState(business_process)
+    business_state_partial = self.createBusinessState(business_process)
+    business_state_done = self.createBusinessState(business_process)
+
+    business_process.edit(referential_date='stop_date')
+    business_path_p2.edit(id='p2',
+                          predecessor_value=business_state_ready,
+                          successor_value=business_state_partial,
+                          quantity=1,
+                          trade_phase=['mrp/p2'])
+    business_path_p3.edit(id='p3',
+                          predecessor_value=business_state_partial,
+                          successor_value=business_state_done,
+                          quantity=1,
+                          deliverable=1, # root explanation
+                          trade_phase=['mrp/p3'])
+    return business_process
+
+  @reindex
+  def createConcurrentBusinessProcess(self):
+    """    mrp/p2
+    ready ======== partial_produced
+           mrp/p3
+    """
+    business_process = self.createBusinessProcess()
+    business_path_p2 = self.createBusinessPath(business_process)
+    business_path_p3 = self.createBusinessPath(business_process)
+    business_state_ready = self.createBusinessState(business_process)
+    business_state_partial = self.createBusinessState(business_process)
+
+    business_process.edit(referential_date='stop_date')
+    business_path_p2.edit(id='p2',
+                          predecessor_value=business_state_ready,
+                          successor_value=business_state_partial,
+                          quantity=1,
+                          trade_phase=['mrp/p2'])
+    business_path_p3.edit(id='p3',
+                          predecessor_value=business_state_ready,
+                          successor_value=business_state_partial,
+                          quantity=1,
+                          deliverable=1, # root explanation
+                          trade_phase=['mrp/p3'])
+    return business_process
+
+class TestMRPImplementation(TestMRPMixin, ERP5TypeTestCase):
+  """the test for implementation"""
+  def test_TransformationRule_getHeadProductionPathList(self):
+    rule = self.portal.portal_rules.default_transformation_rule
+
+    transformation = self.createDefaultTransformation()
+
+    business_process = self.createSimpleBusinessProcess()
+    self.assertEquals([business_process.p2],
+                      rule.getHeadProductionPathList(transformation, business_process))
+
+    business_process = self.createConcurrentBusinessProcess()
+    self.assertEquals(set([business_process.p2, business_process.p3]),
+                      set(rule.getHeadProductionPathList(transformation, business_process)))
+
+  def test_TransformationRule_expand(self):
+    transformation = self.createDefaultTransformation()
+
+    """
+      Simple case
+    """
+    business_process = self.createSimpleBusinessProcess()
+
+    # mock order
+    order = self.portal.production_order_module.newContent(portal_type="Production Order")
+    order_line = order.newContent(portal_type="Production Order Line")
+
+    base_date = DateTime()
+    order.edit(specialise_value=business_process,
+               start_date=base_date,
+               stop_date=base_date+3,
+               source_section_value=order,
+               source_value=order)
+    order_line.edit(quantity=10)
+    order_line.setSpecialiseValue(transformation) # XXX Why can not define by edit?
+
+    # don't need another rules, just need TransformationRule for test
+    self.invalidateRules()
+
+    self.stepTic()
+
+    # alter simulations of the order
+    # root
+    applied_rule = self.portal.portal_simulation.newContent(portal_type='Applied Rule')
+    movement = applied_rule.newContent(portal_type='Simulation Movement')
+    applied_rule.edit(causality_value=order)
+    movement.edit(order_value=order_line,
+                  quantity=order_line.getQuantity(),
+                  resource=transformation.getResource())
+    # test mock
+    applied_rule = movement.newContent(potal_type='Applied Rule')
+
+    rule = self.portal.portal_rules.default_transformation_rule
+    rule.expand(applied_rule)
+
+    # assertion
+    expected_value_set = set([
+      ('business_process_module/1/p2', 'product_module/1', 'mrp/p3', -10),
+      ('business_process_module/1/p2', 'product_module/2', 'mrp/p2', 30),
+      ('business_process_module/1/p2', 'product_module/3', 'mrp/p2', 10),
+      ('business_process_module/1/p3', 'product_module/1', 'mrp/p3', 10),
+      ('business_process_module/1/p3', 'product_module/4', 'mrp/p3', 40),
+      ('business_process_module/1/p3', 'product_module/5', 'mrp/p3', 10),
+      (None, 'product_module/1', None, -10)])
+    movement_list = applied_rule.objectValues()
+    self.assertEquals(len(expected_value_set), len(movement_list))
+    movement_value_set = set([])
+    for movement in movement_list:
+      movement_value_set |= set([(movement.getCausality(),
+                                  movement.getResource(),
+                                  movement.getTradePhase(),
+                                  movement.getQuantity())])
+    self.assertEquals(expected_value_set, movement_value_set)
+
+    """
+      Concurrent case
+    """
+    business_process = self.createConcurrentBusinessProcess()
+    order.edit(specialise_value=business_process)
+
+    self.stepTic()
+
+    # alter simulations of the order
+    # root
+    applied_rule = self.portal.portal_simulation.newContent(portal_type='Applied Rule')
+    movement = applied_rule.newContent(portal_type='Simulation Movement')
+    applied_rule.edit(causality_value=order)
+    movement.edit(order_value=order_line,
+                  quantity=order_line.getQuantity(),
+                  resource=transformation.getResource())
+    # test mock
+    applied_rule = movement.newContent(potal_type='Applied Rule')
+
+    rule = self.portal.portal_rules.default_transformation_rule
+    rule.expand(applied_rule)
+
+    # assertion
+    expected_value_set = set([
+      ('business_process_module/2/p2', 'product_module/2', 'mrp/p2', 30),
+      ('business_process_module/2/p2', 'product_module/3', 'mrp/p2', 10),
+      ('business_process_module/2/p3', 'product_module/4', 'mrp/p3', 40),
+      ('business_process_module/2/p3', 'product_module/5', 'mrp/p3', 10),
+      (None, 'product_module/1', None, -10)])
+    movement_list = applied_rule.objectValues()
+    self.assertEquals(len(expected_value_set), len(movement_list))
+    movement_value_set = set([])
+    for movement in movement_list:
+      movement_value_set |= set([(movement.getCausality(),
+                                  movement.getResource(),
+                                  movement.getTradePhase(),
+                                  movement.getQuantity())])
+    self.assertEquals(expected_value_set, movement_value_set)
+
+def test_suite():
+  suite = unittest.TestSuite()
+  suite.addTest(unittest.makeSuite(TestMRPImplementation))
+  return suite