def __init__(self, engine, dao, max_file_processors=5):
'''
Constructor
'''
super(QueueManager, self).__init__()
self._dao = dao
self._engine = engine
self._local_folder_queue = Queue()
self._local_file_queue = Queue()
self._remote_file_queue = Queue()
self._remote_folder_queue = Queue()
self._connected = local()
self._local_folder_enable = True
self._local_file_enable = True
self._remote_folder_enable = True
self._remote_file_enable = True
self._local_folder_thread = None
self._local_file_thread = None
self._remote_folder_thread = None
self._remote_file_thread = None
self._error_threshold = ERROR_THRESHOLD
self._error_interval = 60
self.set_max_processors(max_file_processors)
self._threads_pool = list()
self._processors_pool = list()
self._get_file_lock = Lock()
# Should not operate on thread while we are inspecting them
'''
This error required to add a lock for inspecting threads, as the below Traceback shows the processor thread was ended while the method was running
Traceback (most recent call last):
File "/Users/hudson/tmp/workspace/FT-nuxeo-drive-master-osx/nuxeo-drive-client/nxdrive/engine/watcher/local_watcher.py", line 845, in handle_watchdog_event
self.scan_pair(rel_path)
File "/Users/hudson/tmp/workspace/FT-nuxeo-drive-master-osx/nuxeo-drive-client/nxdrive/engine/watcher/local_watcher.py", line 271, in scan_pair
self._suspend_queue()
File "/Users/hudson/tmp/workspace/FT-nuxeo-drive-master-osx/nuxeo-drive-client/nxdrive/engine/watcher/local_watcher.py", line 265, in _suspend_queue
for processor in self._engine.get_queue_manager().get_processors_on('/', exact_match=False):
File "/Users/hudson/tmp/workspace/FT-nuxeo-drive-master-osx/nuxeo-drive-client/nxdrive/engine/queue_manager.py", line 413, in get_processors_on
res.append(self._local_file_thread.worker)
AttributeError: 'NoneType' object has no attribute 'worker'
'''
self._thread_inspection = Lock()
# ERROR HANDLING
self._error_lock = Lock()
self._on_error_queue = BlacklistQueue(delay=DEFAULT_DELAY)
self._error_timer = QTimer()
# TODO newErrorGiveUp signal is not connected
self._error_timer.timeout.connect(self._on_error_timer)
self.newError.connect(self._on_new_error)
self.queueProcessing.connect(self.launch_processors)
# LAST ACTION
self._dao.register_queue_manager(self)
