first attempt to make Operator working with shifts

dream/simulation/Machine.py

@@ -1118,7 +1118,8 @@ class Machine(CoreObject):
         # find an available operator
         candidateOperator=self.operatorPool.findAvailableOperator()
         # append the station into its candidateStations
-        candidateOperator.candidateStations.append(self)
+        if candidateOperator:
+            candidateOperator.candidateStations.append(self)
         return candidateOperator
     
     #===========================================================================

dream/simulation/ObjectResource.py

@@ -58,12 +58,13 @@ class ObjectResource(ManPyObject):
         self.coreObjectIds=[]
         # list with the coreObjects that the resource services
         self.coreObjects=[]
-    
+        self.onShift=True
+        
     # =======================================================================
     #                    checks if the worker is available
     # =======================================================================       
     def checkIfResourceIsAvailable(self,callerObject=None): 
-        return len(self.Res.users)<self.capacity   
+        return len(self.Res.users)<self.capacity and self.onShift
     
        
     # =======================================================================

dream/simulation/OperatorPool.py

@@ -99,7 +99,12 @@ class OperatorPool(ObjectResource):
     # =======================================================================
     def findAvailableOperator(self):            # may need to implement different sorting of the operators
         # find the free operator if any
-        freeOperator = next(x for x in self.operators if x.checkIfResourceIsAvailable())
+        # freeOperator = next(x for x in self.operators if x.checkIfResourceIsAvailable())
+        freeOperator = None
+        for operator in self.operators:
+            if operator.checkIfResourceIsAvailable():
+                freeOperator=operator
+                break
         return freeOperator
         
     # =======================================================================

dream/simulation/OperatorRouter.py

@@ -322,7 +322,7 @@ class Router(ObjectInterruption):
             # find candidateOperators for each object operator
             candidateOperator=object.findCandidateOperator()
             # TODO: this way no sorting is performed
-            if not candidateOperator in self.candidateOperators:
+            if candidateOperator and (not candidateOperator in self.candidateOperators):
                 self.candidateOperators.append(candidateOperator)
         # for each pendingQueue
         for object in self.pendingQueues:
@@ -357,9 +357,12 @@ class Router(ObjectInterruption):
          # update the schedulingRule/multipleCriterionList of the Router
         if self.sorting:
             self.updateSchedulingRule()  
-        self.printTrace('router found candidate operators'+' '*3,
-                        [(operator.id, [station.id for station in operator.candidateStations]) for operator in self.candidateOperators])
-    
+        if self.candidateOperators:
+            self.printTrace('router found candidate operators'+' '*3,
+                            [(operator.id, [station.id for station in operator.candidateStations]) for operator in self.candidateOperators])
+        else:    
+            self.printTrace('router', 'found NO candidate operators')
+            
     #===========================================================================
     # find the candidate entities for each candidateOperator
     #===========================================================================

dream/simulation/ShiftScheduler.py

@@ -60,21 +60,30 @@ class ShiftScheduler(ObjectInterruption):
     #    The run method for the failure which has to served by a repairman
     # =======================================================================
     def run(self):
+        from CoreObject import CoreObject
         # the victim should not be interrupted but the scheduler should wait for the processing to finish before the stations turns to off-shift mode
         self.victim.totalOffShiftTime=0
         self.victim.timeLastShiftEnded=self.env.now
         # if in the beginning the victim is offShift set it as such
         if float(self.remainingShiftPattern[0][0])!=self.env.now:
             self.victim.onShift=False
-            self.interruptVictim()                  # interrupt processing operations if any
+            if issubclass(self.victim.__class__, CoreObject): 
+                if not self.victim.interruptionStart.triggered:
+                    self.interruptVictim()                      # interrupt the victim
+            else:
+                CoreObject.requestAllocation()
+
             self.victim.timeLastShiftEnded=self.env.now
             self.outputTrace(self.victim.name,"is off shift")
 
         while 1:
             if not self.victim.onShift:
                 yield self.env.timeout(float(self.remainingShiftPattern[0][0]-self.env.now))    # wait for the onShift
-                self.reactivateVictim()                 # re-activate the victim in case it was interrupted
-                
+                if issubclass(self.victim.__class__, CoreObject): 
+                    self.reactivateVictim()                 # re-activate the victim in case it was interrupted
+                else:
+                    CoreObject.requestAllocation()
+
                 # if the victim has interruptions that measure only the on-shift time, they have to be notified
                 for oi in self.victim.objectInterruptions:
                     if oi.isWaitingForVictimOnShift:
@@ -116,8 +125,12 @@ class ShiftScheduler(ObjectInterruption):
                             oi.victimOffShift.succeed(succeedTuple)
 
                 # interrupt the victim only if it was not previously interrupted
-                if not self.victim.interruptionStart.triggered:
-                    self.interruptVictim()                      # interrupt the victim
+                if issubclass(self.victim.__class__, CoreObject): 
+                    if not self.victim.interruptionStart.triggered:
+                        self.interruptVictim()                      # interrupt the victim
+                else:
+                    CoreObject.requestAllocation()
+                        
                 self.victim.onShift=False                        # get the victim off-shift
                 self.victim.timeLastShiftEnded=self.env.now
                 self.outputTrace(self.victim.name,"is off shift")