def first(self, queue, project=None, sort=1):
if sort not in (1, -1):
raise ValueError(u'sort must be either 1 (ascending) '
u'or -1 (descending)')
message_id = self._get_first_message_id(queue, project, sort)
if not message_id:
raise errors.QueueIsEmpty(queue, project)
message = Message.from_redis(message_id, self._client)
if message is None:
raise errors.QueueIsEmpty(queue, project)
now = timeutils.utcnow_ts()
return message.to_basic(now, include_created=True)
def first(self, queue, project=None, sort=1):
if sort not in (1, -1):
raise ValueError(u'sort must be either 1 (ascending) '
u'or -1 (descending)')
cursor = self._list(queue, project, limit=1, sort=sort)
try:
message = next(next(cursor))
except StopIteration:
raise errors.QueueIsEmpty(queue, project)
return message
def stats(self, name, project=None):
if not self._queue_ctrl.exists(name, project=project):
raise errors.QueueDoesNotExist(name, project)
total = 0
claimed = 0
container = utils._message_container(name, project)
try:
_, objects = self._client.get_container(container)
except swiftclient.ClientException as exc:
if exc.http_status == 404:
raise errors.QueueIsEmpty(name, project)
newest = None
oldest = None
now = timeutils.utcnow_ts(True)
for obj in objects:
try:
headers = self._client.head_object(container, obj['name'])
except swiftclient.ClientException as exc:
if exc.http_status != 404:
raise
else:
created = float(headers['x-timestamp'])
created_iso = datetime.datetime.utcfromtimestamp(
created).strftime('%Y-%m-%dT%H:%M:%SZ')
newest = {
'id': obj['name'],
'age': now - created,
'created': created_iso
}
if oldest is None:
oldest = copy.deepcopy(newest)
total += 1
if headers.get('x-object-meta-claimid'):
claimed += 1
msg_stats = {
'claimed': claimed,
'free': total - claimed,
'total': total,
}
if newest is not None:
msg_stats['newest'] = newest
msg_stats['oldest'] = oldest
return {'messages': msg_stats}
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(int(id)),
'ttl': ttl,
'created': created_iso,
'age': int((timeutils.utcnow() - created).seconds),
'body': body,
}
