Finish appservice txn storage impl and tests.

This commit is contained in:
Kegan Dougal 2015-03-09 15:53:03 +00:00
parent 1ead1caa18
commit 0a60bbf4fa
3 changed files with 139 additions and 16 deletions

View file

@ -429,15 +429,7 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
# The highest id may be the last one sent (in which case it is last_txn)
# or it may be the highest in the txns list (which are waiting to be/are
# being sent)
result = txn.execute(
"SELECT last_txn FROM application_services_state WHERE as_id=?",
(service.id,)
)
last_txn_id = result.fetchone()
if last_txn_id is None: # no row exists
last_txn_id = 0
else:
last_txn_id = int(last_txn_id[0]) # select 'last_txn' col
last_txn_id = self._get_last_txn(txn, service.id)
result = txn.execute(
"SELECT MAX(txn_id) FROM application_services_txns WHERE as_id=?",
@ -467,12 +459,43 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
service(ApplicationService): The application service which was sent
this transaction.
Returns:
A Deferred which resolves to True if this transaction was completed
A Deferred which resolves if this transaction was stored
successfully.
"""
# TODO: Set current txn_id for AS to 'txn_id'
# TODO: Delete txn contents
pass
return self.runInteraction(
"complete_appservice_txn",
self._complete_appservice_txn,
txn_id, service
)
def _complete_appservice_txn(self, txn, txn_id, service):
txn_id = int(txn_id)
# Debugging query: Make sure the txn being completed is EXACTLY +1 from
# what was there before. If it isn't, we've got problems (e.g. the AS
# has probably missed some events), so whine loudly but still continue,
# since it shouldn't fail completion of the transaction.
last_txn_id = self._get_last_txn(txn, service.id)
if (last_txn_id + 1) != txn_id:
logger.error(
"appservice: Completing a transaction which has an ID > 1 from "
"the last ID sent to this AS. We've either dropped events or "
"sent it to the AS out of order. FIX ME. last_txn=%s "
"completing_txn=%s service_id=%s", last_txn_id, txn_id,
service.id
)
# Set current txn_id for AS to 'txn_id'
self._simple_upsert_txn(
txn, "application_services_state", dict(as_id=service.id),
dict(last_txn=txn_id)
)
# Delete txn contents
self._simple_delete_txn(
txn, "application_services_txns",
dict(txn_id=txn_id, as_id=service.id)
)
def get_oldest_unsent_txn(self, service):
"""Get the oldest transaction which has not been sent for this
@ -484,6 +507,38 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
A Deferred which resolves to an AppServiceTransaction or
None.
"""
# TODO: Monotonically increasing txn ids, so just select the smallest
return self.runInteraction(
"get_oldest_unsent_appservice_txn",
self._get_oldest_unsent_txn,
service
)
def _get_oldest_unsent_txn(self, txn, service):
# Monotonically increasing txn ids, so just select the smallest
# one in the txns table (we delete them when they are sent)
pass
result = txn.execute(
"SELECT *,MIN(txn_id) FROM application_services_txns WHERE as_id=?",
(service.id,)
)
entry = self.cursor_to_dict(result)[0]
if not entry or entry["txn_id"] is None:
# the min(txn_id) part will force a row, so entry may not be None
return None
return AppServiceTransaction(
service=service, id=entry["txn_id"], events=json.loads(
entry["content"]
)
)
def _get_last_txn(self, txn, service_id):
result = txn.execute(
"SELECT last_txn FROM application_services_state WHERE as_id=?",
(service_id,)
)
last_txn_id = result.fetchone()
if last_txn_id is None: # no row exists
return 0
else:
return int(last_txn_id[0]) # select 'last_txn' col

View file

@ -15,7 +15,7 @@
CREATE TABLE IF NOT EXISTS application_services_state(
as_id INTEGER PRIMARY KEY,
state TEXT NOT NULL,
state TEXT,
last_txn TEXT,
FOREIGN KEY(as_id) REFERENCES application_services(id)
);

View file

@ -304,6 +304,74 @@ class ApplicationServiceTransactionStoreTestCase(unittest.TestCase):
self.assertEquals(txn.events, events)
self.assertEquals(txn.service, service)
@defer.inlineCallbacks
def test_complete_appservice_txn_first_txn(self):
service = Mock(id=self.as_list[0]["id"])
events = [{"foo": "bar"}]
txn_id = 1
yield self._insert_txn(service.id, txn_id, events)
yield self.store.complete_appservice_txn(txn_id=txn_id, service=service)
res = yield self.db_pool.runQuery(
"SELECT last_txn FROM application_services_state WHERE as_id=?",
(service.id,)
)
self.assertEquals(1, len(res))
self.assertEquals(str(txn_id), res[0][0])
res = yield self.db_pool.runQuery(
"SELECT * FROM application_services_txns WHERE txn_id=?",
(txn_id,)
)
self.assertEquals(0, len(res))
@defer.inlineCallbacks
def test_complete_appservice_txn_existing_in_state_table(self):
service = Mock(id=self.as_list[0]["id"])
events = [{"foo": "bar"}]
txn_id = 5
yield self._set_last_txn(service.id, 4)
yield self._insert_txn(service.id, txn_id, events)
yield self.store.complete_appservice_txn(txn_id=txn_id, service=service)
res = yield self.db_pool.runQuery(
"SELECT last_txn, state FROM application_services_state WHERE "
"as_id=?",
(service.id,)
)
self.assertEquals(1, len(res))
self.assertEquals(str(txn_id), res[0][0])
self.assertEquals(ApplicationServiceState.UP, res[0][1])
res = yield self.db_pool.runQuery(
"SELECT * FROM application_services_txns WHERE txn_id=?",
(txn_id,)
)
self.assertEquals(0, len(res))
@defer.inlineCallbacks
def test_get_oldest_unsent_txn_none(self):
service = Mock(id=self.as_list[0]["id"])
txn = yield self.store.get_oldest_unsent_txn(service)
self.assertEquals(None, txn)
@defer.inlineCallbacks
def test_get_oldest_unsent_txn(self):
service = Mock(id=self.as_list[0]["id"])
events = [{"type": "nothing"}, {"type": "here"}]
yield self._insert_txn(self.as_list[1]["id"], 9, {"badger": "mushroom"})
yield self._insert_txn(service.id, 10, events)
yield self._insert_txn(service.id, 11, [{"foo":"bar"}])
yield self._insert_txn(service.id, 12, [{"argh":"bargh"}])
txn = yield self.store.get_oldest_unsent_txn(service)
self.assertEquals(service, txn.service)
self.assertEquals(10, txn.id)
self.assertEquals(events, txn.events)
@defer.inlineCallbacks
def test_get_appservices_by_state_single(self):
yield self._set_state(