Commit accfa6d6 authored by Ioannis Papagiannopoulos's avatar Ioannis Papagiannopoulos Committed by Georgios Dagkakis

cherry-pick from readWIPseperatelly. OperatorPreemtive removed, no more needed

parent 01c103d8
......@@ -67,7 +67,7 @@ from BatchScrapMachine import BatchScrapMachine
from LineClearance import LineClearance
from EventGenerator import EventGenerator
from Operator import Operator
from OperatorPreemptive import OperatorPreemptive
# from OperatorPreemptive import OperatorPreemptive
from OperatorManagedJob import OperatorManagedJob
from OperatorPool import OperatorPool
from OperatedPoolBroker import Broker
......@@ -164,7 +164,7 @@ def createObjects():
G.LineClearanceList=[]
G.EventGeneratorList=[]
G.OperatorsList = []
G.OperatorPreemptivesList = []
# G.OperatorPreemptivesList = []
G.OperatorManagedJobsList = []
G.OperatorPoolsList = []
G.BrokersList = []
......@@ -217,19 +217,19 @@ def createObjects():
# calling the getSuccesorList() method on the operator
G.OperatorsList.append(O) # add the operator to the RepairmanList
G.ModelResourceList.append(O)
elif resourceClass=='Dream.OperatorPreemptive':
id = element.get('id', 'not found') # get the id of the element / default 'not_found'
name = element.get('name', 'not found') # get the name of the element / default 'not_found'
capacity = int(element.get('capacity') or 1) # get the capacity of the el. / defautl '1'
schedulingRule=element.get('schedulingRule', 'FIFO') # get the scheduling rule of the el. (how to choose which
# station to serve first) / default 'FIFO' i.e. the one that
# called first
O = OperatorPreemptive(element_id, name, capacity,schedulingRule) # create an operator object
O.coreObjectIds=getSuccessorList(id) # update the list of objects that the operator operates
# calling the getSuccesorList() method on the operator
G.OperatorsList.append(O) # add the operator to the RepairmanList
G.OperatorPreemptivesList.append(O)
G.ModelResourceList.append(O)
# elif resourceClass=='Dream.OperatorPreemptive':
# id = element.get('id', 'not found') # get the id of the element / default 'not_found'
# name = element.get('name', 'not found') # get the name of the element / default 'not_found'
# capacity = int(element.get('capacity') or 1) # get the capacity of the el. / defautl '1'
# schedulingRule=element.get('schedulingRule', 'FIFO') # get the scheduling rule of the el. (how to choose which
# # station to serve first) / default 'FIFO' i.e. the one that
# # called first
# O = OperatorPreemptive(element_id, name, capacity,schedulingRule) # create an operator object
# O.coreObjectIds=getSuccessorList(id) # update the list of objects that the operator operates
# # calling the getSuccesorList() method on the operator
# G.OperatorsList.append(O) # add the operator to the RepairmanList
# G.OperatorPreemptivesList.append(O)
# G.ModelResourceList.append(O)
elif resourceClass=='Dream.OperatorManagedJob':
id = element.get('id', 'not found') # get the id of the element / default 'not_found'
name = element.get('name', 'not found') # get the name of the element / default 'not_found'
......
# ===========================================================================
# Copyright 2013 University of Limerick
#
# This file is part of DREAM.
#
# DREAM is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# DREAM 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with DREAM. If not, see <http://www.gnu.org/licenses/>.
# ===========================================================================
'''
Created on 27 Jan 2014
@author: Ioannis
'''
'''
Inherits from Operator. When he gets called for an operation while he is busy,
he checks if the operation that calls him is of higher priority than the one
that he is currently in.
'''
from Operator import Operator
# ===========================================================================
# Error in the setting up of the WIP
# ===========================================================================
class NoCallerError(Exception):
def __init__(self, callerError):
Exception.__init__(self, callerError)
# ===========================================================================
# the resource that operates the machines
# ===========================================================================
class OperatorPreemptive(Operator):
# def __init__(self, id, name, capacity=1):
# Operator.__init__(self,id=id,name=name,capacity=capacity)
# self.type="OperatorPreemptive"
# =======================================================================
# Check if Operator Can perform a preemption
# =======================================================================
def checkIfResourceCanPreempt(self,callerObject=None):
# TODO: to discuss with George about the use of callerObject
activeResource= self.getResource()
activeResourceQueue = self.getResourceQueue()
# find out which station is requesting the operator?
thecaller=callerObject
# assert that the callerObject is not None
try:
if callerObject:
thecaller = callerObject
else:
raise NoCallerError('The caller must be defined for checkIfResourceCanPreempt')
except NoCallerError as noCaller:
print 'No caller error: {0}'.format(noCaller)
# Otherwise check the operator has a reason to preempt the machine he is currently working on
# TODO: update the objects requesting the operator
requestingObject=thecaller.requestingObject
# TODO: update the last object calling the operatorPool
receivingObject=thecaller.receivingObject
# TODO: the entity that is requesting the operator
requestingEntity=receivingObject.requestingEntity
# if the operator is not occupied return True
if len(activeResourceQueue)==0:
return True
# read the station currently operated by the operator
# TODO: the victim of the operator is the Broker of the Machine. Modify to preempt the machine and not the broker
victim=activeResourceQueue[0].victim
# read its activeQ
victimQueue=victim.getActiveObjectQueue()
requestingObjectQueue=requestingObject.getActiveObjectQueue()
receivingObjectQueue=receivingObject.getActiveObjectQueue()
#if the receiver is not empty and the caller is not empty
if len(victimQueue) and len(requestingObjectQueue):
try:
#if the Entity to be forwarded to the station currently processed by the operator is critical
if requestingObjectQueue[0].isCritical:
#if the receiver does not hold an Entity that is also critical
if not victimQueue[0].isCritical and not receivingObjectQueue[0].isCritical and victim.Up:
# then the receiver must be preemptied before it can receive any entities from the calerObject
victim.shouldPreempt=True
victim.preempt()
victim.timeLastEntityEnded=self.env.now #required to count blockage correctly in the preemptied station
return True
# if the entity has no isCritical property then ran the default behaviour
except:
pass
return len(self.Res.activeQ)<self.capacity
# =======================================================================
# override the default method so that Entities
# that are critical got served first
# TODO: NOT USED!
# =======================================================================
def sortEntities(self):
Operator.sortEntities(self) #do the default sorting first
activeObjectQ=self.activeCallersList
activeObjectQ.sort(key=lambda x: x.identifyEntityToGet().isCritical, reverse=True)
\ No newline at end of file
......@@ -72,7 +72,7 @@ from dream.simulation.OrderComponent import OrderComponent
from dream.simulation.Repairman import Repairman
from dream.simulation.OperatorPool import OperatorPool
from dream.simulation.Operator import Operator
from dream.simulation.OperatorPreemptive import OperatorPreemptive
# from dream.simulation.OperatorPreemptive import OperatorPreemptive
#ObjectInterruption
from dream.simulation.Failure import Failure
......
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