def __init__(self, ppm):
self.task_queue = QueueAA()
self.__pages_per_minute = ppm
self.__time_remaining = 0
self.__current_task = None
self.__waiting_times = []
self.__job_history = {}
self.__job_id = 1000
class Printer(object):
def __init__(self, ppm):
self.task_queue = QueueAA()
self.__pages_per_minute = ppm
self.__time_remaining = 0
self.__current_task = None
self.__waiting_times = []
self.__job_history = {}
self.__job_id = 1000
def start_next_task(self):
self.__current_task = self.task_queue.dequeue()
if self.__current_task != None:
#Task is starting
print("Job #{0}: Starting new print task...".format(self.__job_id))
self.__job_history[self.__job_id] = self.__current_task.get_pages()
self.__time_remaining = self.__current_task.get_pages(
) * 60 / self.__pages_per_minute
self.__waiting_times.append(self.__time_remaining)
def tick(self):
if self.__current_task != None:
self.__time_remaining -= 1
if self.__time_remaining <= 0:
#Task is done
print("Job #{0}: Task done. Printed {1} pages".format(
self.__job_id, self.__job_history[self.__job_id]))
self.__job_id += 1
if self.__time_remaining <= 0:
self.start_next_task()
def add_print_task(self, task):
self.task_queue.enqueue(task)
def is_busy(self):
return self.__current_task != None
def average_waiting_time(self):
return sum(self.__waiting_times) / len(self.__waiting_times)
def average_pages(self):
return sum(self.__job_history.values()) / len(self.__job_history)
def reset_history(self):
self.__waiting_times = []
def reset_printing_queue(self):
self.task_queue.clear()
class Printer(object):
def __init__(self, ppm):
self.task_queue = QueueAA()
self.__pages_per_minute = ppm
self.__time_remaining = 0
self.__current_task = None
self.__waiting_times = []
self.__job_history = {}
self.__job_id = 1000
def start_next_task(self):
self.__current_task = self.task_queue.dequeue()
if self.__current_task != None:
#Task is starting
print("Job #{0}: Starting new print task...".format(self.__job_id))
self.__job_history[self.__job_id] = self.__current_task.get_pages()
self.__time_remaining = self.__current_task.get_pages() * 60 / self.__pages_per_minute
self.__waiting_times.append(self.__time_remaining)
def tick(self):
if self.__current_task != None:
self.__time_remaining -= 1
if self.__time_remaining <= 0:
#Task is done
print("Job #{0}: Task done. Printed {1} pages".format(self.__job_id, self.__job_history[self.__job_id]))
self.__job_id += 1
if self.__time_remaining <= 0:
self.start_next_task()
def add_print_task(self, task):
self.task_queue.enqueue(task)
def is_busy(self):
return self.__current_task != None
def average_waiting_time(self):
return sum(self.__waiting_times) / len(self.__waiting_times)
def average_pages(self):
return sum(self.__job_history.values()) / len(self.__job_history)
def reset_history(self):
self.__waiting_times = []
def reset_printing_queue(self):
self.task_queue.clear()
def __init__(self, ppm):
self.task_queue = QueueAA()
self.__pages_per_minute = ppm
self.__time_remaining = 0
self.__current_task = None
self.__waiting_times = []
self.__job_history = {}
self.__job_id = 1000
def testALQueueTest(self):
queue = QueueAA()
self.assertEqual(queue.size(), 0)
self.assertTrue(queue.is_empty())
self.assertEqual(queue.dequeue(), None)
queue.enqueue("First")
queue.enqueue(2)
queue.enqueue("Third")
self.assertEqual(queue.size(), 3)
self.assertFalse(queue.is_empty())
self.assertEqual(queue.dequeue(), "First")
self.assertEqual(queue.dequeue(), 2)
self.assertEqual(queue.dequeue(), "Third")
self.assertEqual(queue.dequeue(), None)
queue.enqueue("Fourth")
self.assertEqual(queue.dequeue(), "Fourth")
queue.enqueue("Uno")
queue.enqueue("Dos")
queue.clear()
self.assertEqual(queue.is_empty(), True)
def testALQueueTest(self):
queue = QueueAA()
self.assertEqual(queue.size(),0)
self.assertTrue(queue.is_empty())
self.assertEqual(queue.dequeue(), None)
queue.enqueue("First")
queue.enqueue(2)
queue.enqueue("Third")
self.assertEqual(queue.size(),3)
self.assertFalse(queue.is_empty())
self.assertEqual(queue.dequeue(), "First")
self.assertEqual(queue.dequeue(), 2)
self.assertEqual(queue.dequeue(), "Third")
self.assertEqual(queue.dequeue(), None)
queue.enqueue("Fourth")
self.assertEqual(queue.dequeue(), "Fourth")
queue.enqueue("Uno")
queue.enqueue("Dos")
queue.clear()
self.assertEqual(queue.is_empty(), True)
