| import simpy |
| from modules.process.random_delay import delay |
|
|
| class Conveyor(simpy.Resource): |
| """ |
| This class represents the conveyors. The difference to cranes is that conveyors do not wait |
| before processing the next item. There is no queue for the conveyor. |
| Simulated WearAndTear faults only apply to Conveyors. |
| """ |
| def __init__(self, name, duration, logger, env, debug=True): |
| super(Conveyor, self).__init__(env) |
| self.debug = debug |
| self.duration = duration |
| self.logger = logger |
| self.name = name |
| self.env = env |
| self.faults = [] |
|
|
| def add_fault(self, fault): |
| self.faults.append(fault) |
|
|
| def process(self): |
| with self.request() as req: |
| yield req |
| if self.debug: |
| print(self.name + ": input") |
| self.logger.addMessage(self.name + " CONVEYOR_GATE"); |
| yield self.env.timeout(delay(self.duration, 1)) |
| for fault in self.faults: |
| yield fault.spawn() |
| if self.debug: |
| print(self.name + ": to_next_step") |
| return |
|
|
| def spawn(self): |
| return self.env.process(self.process()) |
|
|
| def get_events(self): |
| return [self.name + " CONVEYOR_GATE"] |
|
|
