From d04fa1f7121d996e05bd4def14951d89eb47d1ab Mon Sep 17 00:00:00 2001 From: Kegan Dougal Date: Mon, 16 Mar 2015 14:03:16 +0000 Subject: [PATCH] Implement ServiceQueuer with tests. --- synapse/appservice/scheduler.py | 40 +++++++++++++++------- tests/appservice/test_scheduler.py | 54 ++++++++++++++++++++++++++---- 2 files changed, 74 insertions(+), 20 deletions(-) diff --git a/synapse/appservice/scheduler.py b/synapse/appservice/scheduler.py index 54c42d1b94..3cedd479a2 100644 --- a/synapse/appservice/scheduler.py +++ b/synapse/appservice/scheduler.py @@ -83,7 +83,6 @@ class AppServiceScheduler(object): self.clock, self.store, self.as_api, self.txn_ctrl.on_recovered ) self.txn_ctrl.add_recoverers(recoverers) - self.txn_ctrl.start_polling() def submit_event_for_as(self, service, event): self.queuer.enqueue(service, event) @@ -96,24 +95,37 @@ class _ServiceQueuer(object): """ def __init__(self, txn_ctrl): - self.groups = {} # dict of {service: [events]} + self.queued_events = {} # dict of {service_id: [events]} + self.pending_requests = {} # dict of {service_id: Deferred} self.txn_ctrl = txn_ctrl def enqueue(self, service, event): - # if nothing in queue for this service, send event immediately and add - # callbacks. - self.txn_ctrl.send(service, [event]) + # if this service isn't being sent something + if not self.pending_requests.get(service.id): + self._send_request(service, [event]) + else: + # add to queue for this service + if service.id not in self.queued_events: + self.queued_events[service.id] = [] + self.queued_events[service.id].append(event) - # else add to queue for this service + def _send_request(self, service, events): + # send request and add callbacks + d = self.txn_ctrl.send(service, events) + d.addCallback(self._on_request_finish) + d.addErrback(self._on_request_fail) + self.pending_requests[service.id] = d - if service not in self.groups: - self.groups[service] = [] - self.groups[service].append(event) + def _on_request_finish(self, service): + self.pending_requests[service.id] = None + # if there are queued events, then send them. + if (service.id in self.queued_events + and len(self.queued_events[service.id]) > 0): + self._send_request(service, self.queued_events[service.id]) + self.queued_events[service.id] = [] - def drain_groups(self): - groups = self.groups - self.groups = {} - return groups + def _on_request_fail(self, err): + logger.error("AS request failed: %s", err) class _TransactionController(object): @@ -142,6 +154,8 @@ class _TransactionController(object): self._start_recoverer(service) except Exception as e: logger.exception(e) + # request has finished + defer.returnValue(service) @defer.inlineCallbacks def on_recovered(self, recoverer): diff --git a/tests/appservice/test_scheduler.py b/tests/appservice/test_scheduler.py index 38d792eb02..82a5965097 100644 --- a/tests/appservice/test_scheduler.py +++ b/tests/appservice/test_scheduler.py @@ -197,16 +197,56 @@ class ApplicationServiceSchedulerQueuerTestCase(unittest.TestCase): def test_send_single_event_no_queue(self): # Expect the event to be sent immediately. - pass + service = Mock(id=4) + event = Mock() + self.queuer.enqueue(service, event) + self.txn_ctrl.send.assert_called_once_with(service, [event]) def test_send_single_event_with_queue(self): - # - Send an event and don't resolve it just yet. - # - Send another event: expect send() to NOT be called. - # - Resolve the send event - # - Expect queued event to be sent - pass + d = defer.Deferred() + self.txn_ctrl.send = Mock(return_value=d) + service = Mock(id=4) + event = Mock(event_id="first") + event2 = Mock(event_id="second") + event3 = Mock(event_id="third") + # Send an event and don't resolve it just yet. + self.queuer.enqueue(service, event) + # Send more events: expect send() to NOT be called multiple times. + self.queuer.enqueue(service, event2) + self.queuer.enqueue(service, event3) + self.txn_ctrl.send.assert_called_with(service, [event]) + self.assertEquals(1, self.txn_ctrl.send.call_count) + # Resolve the send event: expect the queued events to be sent + d.callback(service) + self.txn_ctrl.send.assert_called_with(service, [event2, event3]) + self.assertEquals(2, self.txn_ctrl.send.call_count) def test_multiple_service_queues(self): # Tests that each service has its own queue, and that they don't block # on each other. - pass + srv1 = Mock(id=4) + srv_1_defer = defer.Deferred() + srv_1_event = Mock(event_id="srv1a") + srv_1_event2 = Mock(event_id="srv1b") + + srv2 = Mock(id=6) + srv_2_defer = defer.Deferred() + srv_2_event = Mock(event_id="srv2a") + srv_2_event2 = Mock(event_id="srv2b") + + send_return_list = [srv_1_defer, srv_2_defer] + self.txn_ctrl.send = Mock(side_effect=lambda x,y: send_return_list.pop(0)) + + # send events for different ASes and make sure they are sent + self.queuer.enqueue(srv1, srv_1_event) + self.queuer.enqueue(srv1, srv_1_event2) + self.txn_ctrl.send.assert_called_with(srv1, [srv_1_event]) + self.queuer.enqueue(srv2, srv_2_event) + self.queuer.enqueue(srv2, srv_2_event2) + self.txn_ctrl.send.assert_called_with(srv2, [srv_2_event]) + + # make sure callbacks for a service only send queued events for THAT + # service + srv_2_defer.callback(srv2) + self.txn_ctrl.send.assert_called_with(srv2, [srv_2_event2]) + self.assertEquals(3, self.txn_ctrl.send.call_count)