def test_probability_distribution_source(self):
processing_times = selection(self.cols['Event_Name'],
lambda x: x == Constants.NEXT_ARRIVAL,
self.big_matrix)
processing_times = transformCols(
[self.cols['Event_Scheduled'], self.cols['Event-Time']],
self.cols['Current_Time'], lambda x, y: y - x, processing_times)
processing_times = groupBy([self.cols['Shift']], [
self.cols['Current_Time'], self.cols['Current_Time'],
self.cols['Current_Time'], self.cols['Current_Time']
], [countA, sumA, minA, maxA], processing_times, True)
processing_times = transformCols([1, 2], 1, lambda x, y: y / x,
processing_times) # average
processing_times = projection([0, 1, 3, 4], processing_times)
self.assertEquals(len(processing_times), 1,
"There should not be any shifts")
shift3 = processing_times[0]
self.assertGreater(shift3[2], 0, "The time should be greater or equal")
random = Random()
self.assertTrue(
abs(shift3[2] - random.LAMBDA) < 50,
"The lambda should be almost equal")
def scheduleEndService(self):
operationType = self.hostedEntity.getOperationType()
rand = Random()
serviceIncrement = rand.processorIncrement(operationType)
endServiceEvent = Event(
self, # eventCreator
Constants.END_SERVICE, # eventName
self.core.currentTime, # eventScheduled
self.core.currentTime + serviceIncrement # eventTime
)
return endServiceEvent
def scheduleNextArrival(self):
shift = self.core.getCurrentShift()
rand = Random()
arrivalIncrement = rand.sourceIncrement(shift)
arrivalEvent = Event(
self, # eventCreator
Constants.NEXT_ARRIVAL, # eventName
self.core.currentTime, # eventSheduled
self.core.currentTime + arrivalIncrement # eventTime
)
return arrivalEvent
def __init__(self, parameters=None):
if parameters is None:
self.parameters = Parameters()
else:
self.parameters = parameters
num_sources = Constants.DEFAULT_SOURCES
num_processors = self.parameters.num_processors
# Attributes initialization
self.processors = []
self.sources = []
self.eventsList = PriorityQueue(0) # maxsize = 0 (infinite)
self.previousTime = Constants.SIMULATION_INITIAL_TIME
self.currentTime = Constants.SIMULATION_INITIAL_TIME
self.idleProcessors = 0
self.serviceProcessors = 0
self.entitiesSystem = 0
self.service_per_shift = []
self.service_per_total = []
self.shift_durations = self.parameters.getParameters()[1]
self.shift_next_time = self.shift_durations[0]
self.shift_next_index = 1
# Instance creation
self.queue = Queue(Constants.SLOTS_BUFFER)
self.parking = Queue(Constants.SLOTS_QUEUE)
self.random = Random()
for _ in range(0, num_processors):
self.processors.append(Processor(self))
for _ in range(0, num_sources):
self.sources.append(Source(self))
# Dependency injection
for source in self.sources:
source.addOutput(self.queue) # source -> queue
self.queue.addOutput(self.parking) # queue -> parking
self.parking.addInput(self.queue) # parking <- queue
for processor in self.processors:
self.parking.addOutput(processor) # parking -> processor
processor.addInput(self.parking) # processor <- parking
self.output_file = None
self.numberOfIdleProcessors = num_processors
def setUp(self):
self.parametersObj = Parameters()
self.parametersObj.WITH_SHIFTS = True
rand = Random()
rand.initialization()
def setWithShifts(self, value):
param = Parameters()
param.WITH_SHIFTS = value
self.randObj = Random()
self.randObj.initialization()
def test_ensure_there_s_one_instance(self):
rand = Random()
assert rand is self.randObj
def setUp(self):
param = Parameters()
param.WITH_SHIFTS = True
self.randObj = Random()
self.randObj.initialization()
self.coreObj = Core()
def setWithShifts(cls, value):
param = Parameters()
param.WITH_SHIFTS = value
cls.randObj = Random()
cls.randObj.initialization()