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, }