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""" bank04: Simulate a single customer. random time in system """
from SimPy.Simulation import *
from random import Random, expovariate
## Model components ------------------------
class Customer(Process):
""" Customer arrives in the bank, looks around for
a random time and then leaves """
def __init__(self, name):
Process.__init__(self)
self.name = name
def visit(self, rv, timeInBank=0):
print("%7.4f %s: Here I am" % (now(), self.name))
t = rv.expovariate(1.0 / timeInBank)
yield hold, self, t
print("%7.4f %s: I must leave" % (now(), self.name))
## Experiment data -------------------------
maxTime = 100.0 # minutes
## Model/Experiment ------------------------------
def model():
rv = Random(1133)
initialize()
c = Customer(name="Klaus")
activate(c, c.visit(rv, timeInBank=10.0), at=5.0)
simulate(until=maxTime)
model()
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