def bulk_get(self, queue, message_ids, project):
if project is None:
project = ''
message_ids = [id for id in
map(utils.msgid_decode, message_ids)
if id is not None]
statement = sa.sql.select([tables.Messages.c.id,
tables.Messages.c.body,
tables.Messages.c.ttl,
tables.Messages.c.created])
and_stmt = [tables.Messages.c.id.in_(message_ids),
tables.Queues.c.name == queue,
tables.Queues.c.project == project,
tables.Messages.c.ttl >
sfunc.now() - tables.Messages.c.created]
j = sa.join(tables.Messages, tables.Queues,
tables.Messages.c.qid == tables.Queues.c.id)
statement = statement.select_from(j).where(sa.and_(*and_stmt))
now = timeutils.utcnow_ts()
records = self.driver.run(statement)
for id, body, ttl, created in records:
yield {
'id': utils.msgid_encode(id),
'ttl': ttl,
'age': now - calendar.timegm(created.timetuple()),
'body': json.loads(body),
}
def post(self, queue, messages, client_uuid, project):
if project is None:
project = ''
with self.driver.trans() as trans:
qid = utils.get_qid(self.driver, queue, project)
# TODO(kgriffs): Need to port this to sqla! Bug #1331228
#
# cleanup all expired messages in this queue
# self.driver.run('''
# delete from Messages
# where ttl <= julianday() * 86400.0 - created
# and qid = ?''', qid)
# executemany() sets lastrowid to None, so no matter we manually
# generate the IDs or not, we still need to query for it.
def it():
for m in messages:
yield dict(qid=qid,
ttl=m['ttl'],
body=utils.json_encode(m['body']),
client=str(client_uuid))
result = trans.execute(tables.Messages.insert(), list(it()))
statement = sa.sql.select([tables.Messages.c.id])
statement = statement.limit(result.rowcount)
statement = statement.order_by(tables.Messages.c.id.desc())
result = trans.execute(statement).fetchall()
return [utils.msgid_encode(i[0]) for i in reversed(result)]
def post(self, queue, messages, client_uuid, project):
if project is None:
project = ''
with self.driver.trans() as trans:
qid = utils.get_qid(self.driver, queue, project)
# TODO(kgriffs): Need to port this to sqla! Bug #1331228
#
# cleanup all expired messages in this queue
# self.driver.run('''
# delete from Messages
# where ttl <= julianday() * 86400.0 - created
# and qid = ?''', qid)
# executemany() sets lastrowid to None, so no matter we manually
# generate the IDs or not, we still need to query for it.
def it():
for m in messages:
yield dict(qid=qid,
ttl=m['ttl'],
body=utils.json_encode(m['body']),
client=str(client_uuid))
result = trans.execute(tables.Messages.insert(), list(it()))
statement = sa.sql.select([tables.Messages.c.id])
statement = statement.limit(result.rowcount)
statement = statement.order_by(tables.Messages.c.id.desc())
result = trans.execute(statement).fetchall()
return [utils.msgid_encode(i[0]) for i in reversed(result)]
def it():
now = timeutils.utcnow_ts()
for id, body, ttl, created in records:
marker_id['next'] = id
yield {
'id': utils.msgid_encode(id),
'ttl': ttl,
'age': now - calendar.timegm(created.timetuple()),
'body': json.loads(body),
}
def pop(self, queue_name, limit, project=None):
if project is None:
project = ''
with self.driver.trans() as trans:
sel = sa.sql.select([
tables.Messages.c.id, tables.Messages.c.body,
tables.Messages.c.ttl, tables.Messages.c.created
])
j = sa.join(tables.Messages, tables.Queues,
tables.Messages.c.qid == tables.Queues.c.id)
sel = sel.select_from(j)
and_clause = [
tables.Queues.c.name == queue_name,
tables.Queues.c.project == project
]
and_clause.append(tables.Messages.c.cid == (None))
sel = sel.where(sa.and_(*and_clause))
sel = sel.limit(limit)
records = trans.execute(sel)
now = timeutils.utcnow_ts()
messages = []
message_ids = []
for id, body, ttl, created in records:
messages.append({
'id':
utils.msgid_encode(id),
'ttl':
ttl,
'age':
now - calendar.timegm(created.timetuple()),
'body':
utils.json_decode(body),
})
message_ids.append(id)
statement = tables.Messages.delete()
qid = utils.get_qid(self.driver, queue_name, project)
and_stmt = [
tables.Messages.c.id.in_(message_ids),
tables.Messages.c.qid == qid
]
trans.execute(statement.where(sa.and_(*and_stmt)))
return messages
def pop(self, queue_name, limit, project=None):
if project is None:
project = ''
with self.driver.trans() as trans:
sel = sa.sql.select([tables.Messages.c.id,
tables.Messages.c.body,
tables.Messages.c.ttl,
tables.Messages.c.created])
j = sa.join(tables.Messages, tables.Queues,
tables.Messages.c.qid == tables.Queues.c.id)
sel = sel.select_from(j)
and_clause = [tables.Queues.c.name == queue_name,
tables.Queues.c.project == project]
and_clause.append(tables.Messages.c.cid == (None))
sel = sel.where(sa.and_(*and_clause))
sel = sel.limit(limit)
records = trans.execute(sel)
now = timeutils.utcnow_ts()
messages = []
message_ids = []
for id, body, ttl, created in records:
messages.append({
'id': utils.msgid_encode(id),
'ttl': ttl,
'age': now - calendar.timegm(created.timetuple()),
'body': utils.json_decode(body),
})
message_ids.append(id)
statement = tables.Messages.delete()
qid = utils.get_qid(self.driver, queue_name, project)
and_stmt = [tables.Messages.c.id.in_(message_ids),
tables.Messages.c.qid == qid]
trans.execute(statement.where(sa.and_(*and_stmt)))
return messages
def __get(self, cid):
# NOTE(flaper87): This probably needs to
# join on `Claim` to check the claim ttl.
sel = sa.sql.select(
[
tables.Messages.c.id, tables.Messages.c.body,
tables.Messages.c.ttl, tables.Messages.c.created
],
sa.and_(
tables.Messages.c.ttl > utils.get_age(
tables.Messages.c.created),
#tables.Messages.c.ttl >
#utils.get_age(tables.Claims.c.created),
tables.Messages.c.cid == cid))
records = self.driver.run(sel)
for id, body, ttl, created in records:
yield {
'id': utils.msgid_encode(id),
'ttl': ttl,
'age': (timeutils.utcnow() - created).seconds,
'body': body,
}
def __get(self, cid):
# NOTE(flaper87): This probably needs to
# join on `Claim` to check the claim ttl.
sel = sa.sql.select([tables.Messages.c.id,
tables.Messages.c.body,
tables.Messages.c.ttl,
tables.Messages.c.created],
sa.and_(
tables.Messages.c.ttl >
utils.get_age(tables.Messages.c.created),
#tables.Messages.c.ttl >
#utils.get_age(tables.Claims.c.created),
tables.Messages.c.cid == cid
))
records = self.driver.run(sel)
for id, body, ttl, created in records:
yield {
'id': utils.msgid_encode(id),
'ttl': ttl,
'age': (timeutils.utcnow() - created).seconds,
'body': body,
}
def first(self, queue, project=None, sort=1):
if project is None:
project = ''
qid = utils.get_qid(self.driver, queue, project)
sel = sa.sql.select([tables.Messages.c.id,
tables.Messages.c.body,
tables.Messages.c.ttl,
tables.Messages.c.created],
sa.and_(
tables.Messages.c.ttl >
sfunc.now() - tables.Messages.c.created,
tables.Messages.c.qid == qid))
if sort not in (1, -1):
raise ValueError(u'sort must be either 1 (ascending) '
u'or -1 (descending)')
order = sa.asc
if sort == -1:
order = sa.desc
sel = sel.order_by(order(tables.Messages.c.id))
try:
id, body, ttl, created = self.driver.get(sel)
except utils.NoResult:
raise errors.QueueIsEmpty(queue, project)
created_iso = timeutils.isotime(created)
return {
'id': utils.msgid_encode(id),
'ttl': ttl,
'created': created_iso,
'age': int((timeutils.utcnow() - created).seconds),
'body': body,
}
