class DownUpManager:
gDownUpManager = None
@staticmethod
def getInstance():
if DownUpManager.gDownUpManager is None:
DownUpManager.gDownUpManager = DownUpManager()
return DownUpManager.gDownUpManager
def __init__(self):
self.__scheduler = Scheduler(ServersManager.getInstance())
self.__tasks = {}
self.__running = False
self.__listeners = []
self.ensureRun()
def ensureRun(self):
if self.__running == False:
self.__scheduler.start()
self.__running = True
## Listeners
def registerListener(self, listener):
if listener not in self.__listeners:
self.__listeners.append(listener)
def removeListener(self, listener):
if listener in self.__listeners:
self.__listeners.remove(listener)
## Events
def notifyTaskDone(self, task):
for listener in self.__listeners:
listener.onTaskDone(task)
def notifyTaskProgress(self, task, progress):
for listener in self.__listeners:
listener.onTaskProgress(task, progress)
def notifyTaskCancel(self, task):
for listener in self.__listeners:
listener.onTaskCancel(task)
def notifyTaskSuspended(self, task):
for listener in self.__listeners:
listener.onTaskSuspended(task)
def notifyTaskResumed(self, task):
for listener in self.__listeners:
listener.onTaskResumed(task)
def notifyTaskError(self, task):
for listener in self.__listeners:
listener.onTaskError(task)
## Task management
def queueTask(self, task):
self.__scheduler.queueTask(task)
def __registerTask(self, task):
if task.uuid not in self.__tasks:
self.__tasks[task.uuid] = TaskRef(task)
def upload(self, filename):
t = UpTask(self, filename)
self.__registerTask(t)
return t.uuid
def download(self, url, prefix=''):
t = DownTask(self, url, prefix)
self.__registerTask(t)
return t.uuid
def startTask(self, task):
if task in self.__tasks:
self.__tasks[task].object.process()
def removeTask(self, task):
if task in self.__tasks:
self.__tasks[task].cancel()
del self.__tasks[task]
def suspendTask(self, task):
if task in self.__tasks:
self.__tasks[task].suspend()
def resumeTask(self, task):
if task in self.__tasks:
self.__tasks[task].resume()
def getTaskStatus(self, task):
if task in self.__tasks:
return self.__tasks[task].status
def getTask(self, task):
if task in self.__tasks:
return self.__tasks[task]
else:
return None
def cancel(self, task):
if task in self.__tasks:
self.__tasks[task].cancel()
self.notifyTaskCancel(task)
def shutdown(self):
self.__scheduler.cancel()
self.__scheduler.join()
## Events
def onTaskDone(self, task):
if task.uuid in self.__tasks:
self.__tasks[task.uuid].status=TaskStatus.TASK_DONE
self.notifyTaskDone(task.uuid)
def onTaskError(self, task):
if task.uuid in self.__tasks:
self.__tasks[task.uuid].status=TaskStatus.TASK_ERR
self.notifyTaskError(task.uuid)
def onTaskProgress(self, task, done, total):
if task.uuid in self.__tasks:
self.__tasks[task.uuid].update(done, total)
self.notifyTaskProgress(task.uuid,float(done)/total)
