Earliest Due Date, Earliest Order Date and Number Of Remaining Stations...

Earliest Due Date, Earliest Order Date and Number Of Remaining Stations scheduling rules implemented

dream/simulation/Entity.py

@@ -29,7 +29,7 @@ Class that acts as an abstract. It should have no instances. All the Entities sh
 class Entity(object):
     type="Entity"
 
-    def __init__(self, name, priority=0):
+    def __init__(self, name, priority=0, dueDate=0, orderDate=0):
         self.name=name
         self.currentStop=None      #contains the current object that the material is in 
         self.creationTime=0
@@ -38,4 +38,7 @@ class Entity(object):
         self.width=1.0
         self.height=1.0
         self.length=1.0
-        self.priority=priority
\ No newline at end of file
+        self.priority=priority
+        self.dueDate=dueDate
+        self.orderDate=orderDate
+        
\ No newline at end of file

dream/simulation/JSONInputs/Topology20.json

@@ -74,7 +74,7 @@
         "Q2": {
             "_class": "Dream.QueueJobShop",
             "name": "Queue2",
-			"schedulingRule": "Priority",
+			"schedulingRule": "NumStations",
             "isDummy": "0",
             "capacity": "1000"
         },
@@ -93,6 +93,8 @@
             "_class": "Dream.Job",
             "name": "Job1",
 			"priority": "1",
+			"dueDate": "900",
+			"orderDate": "5",
             "route": [
                 {
                     "stepNumber": "0",
@@ -132,6 +134,8 @@
             "_class": "Dream.Job",
             "name": "Job2",
 			"priority": "7",
+			"dueDate": "100",
+			"orderDate": "3",
             "route": [
                 {
                     "stepNumber": "0",
@@ -171,6 +175,8 @@
             "_class": "Dream.Job",
             "name": "Job3",
 			"priority": "3",
+			"dueDate": "200",
+			"orderDate": "2",
             "route": [
                 {
                     "stepNumber": "0",
@@ -202,6 +208,8 @@
             "_class": "Dream.Job",
             "name": "Job4",
 			"priority": "1",
+			"dueDate": "99",
+			"orderDate": "1.5",
             "route": [
                 {
                     "stepNumber": "0",

dream/simulation/Job.py

@@ -33,8 +33,8 @@ from Entity import Entity
 class Job(Entity):    
     type="Job"
     
-    def __init__(self, id, name, route, priority=0):
-        Entity.__init__(self, name, priority)
+    def __init__(self, id, name, route, priority=0, dueDate=0, orderDate=0):
+        Entity.__init__(self, name, priority=priority, dueDate=dueDate, orderDate=orderDate)
         self.id=id
         self.fullRoute=route    #the route that the job follows, also contains the processing times in each station
         self.remainingRoute=route   #the remaining route. in the beginning this should be the same as the full route
@@ -42,6 +42,5 @@ class Job(Entity):
         
         
         
-        
     
     
\ No newline at end of file

dream/simulation/LineGenerationJSON.py

@@ -290,6 +290,8 @@ def createObjects():
             id=element.get('id', 'not found')
             name=element.get('name', 'not found')
             priority=int(element.get('priority', '0'))
+            dueDate=float(element.get('dueDate', '0'))
+            orderDate=float(element.get('orderDate', '0'))
             JSONRoute=element.get('route', [])
             route=[]
             for i in range(len(JSONRoute)):
@@ -301,7 +303,7 @@ def createObjects():
                 distributionType=processingTime.get('distributionType', 'not found')
                 mean=int(processingTime.get('mean', 'not found'))
                 route[stepNumber]=[nextId, mean]
-            J=Job(id, name, route, priority=priority)
+            J=Job(id, name, route, priority=priority, dueDate=dueDate, orderDate=orderDate)
             G.JobList.append(J)   
             G.WipList.append(J)  
             G.EntityList.append(J)              

dream/simulation/Queue.py

@@ -177,10 +177,22 @@ class Queue(CoreObject):
     #sorts the Entities of the Queue according to the scheduling rule
     def sortEntities(self):
         activeObjectQ=self.Res.activeQ
-        if self.schedulingRule=="FIFO":
+        schedulingRule=self.schedulingRule
+        #if the schedulingRule is first in first out
+        if schedulingRule=="FIFO": 
             pass
-        elif self.schedulingRule=="Priority":
-            activeObjectQ.sort(key=lambda x: x.priority, reverse=True)        
+        #if the schedulingRule is based on a pre-defined prioriy
+        elif schedulingRule=="Priority":
+            activeObjectQ.sort(key=lambda x: x.priority, reverse=True)
+        #if the schedulingRule is earliest due date
+        elif schedulingRule=="EDD":
+            activeObjectQ.sort(key=lambda x: x.dueDate)   
+        #if the schedulingRule is earliest order date
+        elif schedulingRule=="EOD":
+            activeObjectQ.sort(key=lambda x: x.orderDate)      
+        #if the schedulingRule is to short Entities according to the stations they have to visit
+        elif schedulingRule=="NumStations":
+            activeObjectQ.sort(key=lambda x: len(x.remainingRoute), reverse=True)                 
                          
     #outputs message to the trace.xls. Format is (Simulation Time | Entity Name | message)
     def outputTrace(self, entityName, message):