本文整理汇总了Python中buildbot.status.persistent_queue.IndexedQueue类的典型用法代码示例。如果您正苦于以下问题：Python IndexedQueue类的具体用法？Python IndexedQueue怎么用？Python IndexedQueue使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了IndexedQueue类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
def __init__(self, serverPushCb, queue=None, path=None, filter=True,
bufferDelay=1, retryDelay=5, blackList=None):
"""
@serverPushCb: callback to be used. It receives 'self' as parameter. It
should call self.queueNextServerPush() when it's done to queue the next
push. It is guaranteed that the queue is not empty when this function is
called.
@queue: a item queue that implements IQueue.
@path: path to save config.
@filter: when True (default), removes all "", None, False, [] or {}
entries.
@bufferDelay: amount of time events are queued before sending, to
reduce the number of push requests rate. This is the delay between the
end of a request to initializing a new one.
@retryDelay: amount of time between retries when no items were pushed on
last serverPushCb call.
@blackList: events that shouldn't be sent.
"""
StatusReceiverMultiService.__init__(self)
# Parameters.
self.queue = queue
if self.queue is None:
self.queue = MemoryQueue()
self.queue = IndexedQueue(self.queue)
self.path = path
self.filter = filter
self.bufferDelay = bufferDelay
self.retryDelay = retryDelay
if not callable(serverPushCb):
raise NotImplementedError('Please pass serverPushCb parameter.')
def hookPushCb():
# Update the index so we know if the next push succeed or not, don't
# update the value when the queue is empty.
if not self.queue.nbItems():
return
self.lastIndex = self.queue.getIndex()
return serverPushCb(self)
self.serverPushCb = hookPushCb
self.blackList = blackList
# Other defaults.
# IDelayedCall object that represents the next queued push.
self.task = None
self.stopped = False
self.lastIndex = -1
self.state = {}
self.state['started'] = str(datetime.datetime.utcnow())
self.state['next_id'] = 1
self.state['last_id_pushed'] = 0
# Try to load back the state.
if self.path and os.path.isdir(self.path):
state_path = os.path.join(self.path, 'state')
if os.path.isfile(state_path):
with open(state_path, 'r') as f:
self.state.update(json.load(f))
if self.queue.nbItems():
# Last shutdown was not clean, don't wait to send events.
self.queueNextServerPush()示例2: StatusPush
class StatusPush(StatusReceiverMultiService):
"""Event streamer to a abstract channel.
It uses IQueue to batch push requests and queue the data when
the receiver is down.
When a PersistentQueue object is used, the items are saved to disk on master
shutdown so they can be pushed back when the master is restarted.
"""
def __init__(self, serverPushCb, queue=None, path=None, filter=True,
bufferDelay=1, retryDelay=5, blackList=None):
"""
@serverPushCb: callback to be used. It receives 'self' as parameter. It
should call self.queueNextServerPush() when it's done to queue the next
push. It is guaranteed that the queue is not empty when this function is
called.
@queue: a item queue that implements IQueue.
@path: path to save config.
@filter: when True (default), removes all "", None, False, [] or {}
entries.
@bufferDelay: amount of time events are queued before sending, to
reduce the number of push requests rate. This is the delay between the
end of a request to initializing a new one.
@retryDelay: amount of time between retries when no items were pushed on
last serverPushCb call.
@blackList: events that shouldn't be sent.
"""
StatusReceiverMultiService.__init__(self)
# Parameters.
self.queue = queue
if self.queue is None:
self.queue = MemoryQueue()
self.queue = IndexedQueue(self.queue)
self.path = path
self.filter = filter
self.bufferDelay = bufferDelay
self.retryDelay = retryDelay
if not callable(serverPushCb):
raise NotImplementedError('Please pass serverPushCb parameter.')
def hookPushCb():
# Update the index so we know if the next push succeed or not, don't
# update the value when the queue is empty.
if not self.queue.nbItems():
return
self.lastIndex = self.queue.getIndex()
return serverPushCb(self)
self.serverPushCb = hookPushCb
self.blackList = blackList
# Other defaults.
# IDelayedCall object that represents the next queued push.
self.task = None
self.stopped = False
self.lastIndex = -1
self.state = {}
self.state['started'] = str(datetime.datetime.utcnow())
self.state['next_id'] = 1
self.state['last_id_pushed'] = 0
# Try to load back the state.
if self.path and os.path.isdir(self.path):
state_path = os.path.join(self.path, 'state')
if os.path.isfile(state_path):
self.state.update(json.load(open(state_path, 'r')))
if self.queue.nbItems():
# Last shutdown was not clean, don't wait to send events.
self.queueNextServerPush()
def startService(self):
"""Starting up."""
StatusReceiverMultiService.startService(self)
self.status = self.parent.getStatus()
self.status.subscribe(self)
self.initialPush()
def wasLastPushSuccessful(self):
"""Returns if the "virtual pointer" in the queue advanced."""
return self.lastIndex <= self.queue.getIndex()
def queueNextServerPush(self):
"""Queue the next push or call it immediately.
Called to signal new items are available to be sent or on shutdown.
A timer should be queued to trigger a network request or the callback
should be called immediately. If a status push is already queued, ignore
the current call."""
# Determine the delay.
if self.wasLastPushSuccessful():
if self.stopped:
# Shutting down.
delay = 0
else:
# Normal case.
delay = self.bufferDelay
else:
if self.stopped:
# Too bad, we can't do anything now, we're shutting down and the
# receiver is also down. We'll just save the objects to disk.
return
#.........这里部分代码省略.........