__init__ method added to ObjectResource. isInitialized() method is also added

dream/simulation/ObjectResource.py

@@ -31,11 +31,16 @@ from SimPy.Simulation import Resource
 # ===========================================================================
 class ObjectResource(object):
     
+    def __init__(self):
+        self.initialized = False
+        
     def initialize(self):
         self.totalWorkingTime=0         #holds the total working time
         self.totalWaitingTime=0         #holds the total waiting time
         self.timeLastOperationStarted=0    #holds the time that the last repair was started        
-        self.Res=Resource(self.capacity) 
+        self.Res=Resource(self.capacity)
+        # variable that checks weather the resource is already initialized
+        self.initialized = True
     
     # =======================================================================
     #                    checks if the worker is available
@@ -91,3 +96,9 @@ class ObjectResource(object):
     def getResourceQueue(self):
         return self.Res.activeQ
     
+    # =======================================================================
+    # check if the resource is already initialized
+    # =======================================================================
+    def isInitialized(self):
+        return self.initialized
+    

dream/simulation/OperatorPool.py

@@ -80,8 +80,11 @@ class OperatorPool(ObjectResource):
 #         self.timeLastOperationStarted=0    #holds the time that the last operation was started        
 
         # initialize the operators
+        # an operator that may have been initialized by an other operator pool, is initiated again
+        # reconsider
         for operator in self.operators:
-            operator.initialize()
+            if not operator.isInitialized():
+                operator.initialize()
             
     # =======================================================================
     #                  checks if there are operators available

dream/simulation/Repairman.py

@@ -36,7 +36,8 @@ from ObjectResource import ObjectResource
 # ===========================================================================
 class Repairman(ObjectResource):
     
-    def __init__(self, id, name, capacity=1):    
+    def __init__(self, id, name, capacity=1):  
+        ObjectResource.__init__(self)  
         self.id=id      
         self.objName=name
         self.capacity=capacity      # repairman is an instance of resource
@@ -49,7 +50,7 @@ class Repairman(ObjectResource):
         self.coreObjectIds=[]
         # list with the coreObjects that the repairman repairs
         self.coreObjects=[]
-                
+        
     # =======================================================================    
     #            actions to be taken after the simulation ends
     # =======================================================================