本文整理汇总了Python中kafka.SimpleClient.has_metadata_for_topic方法的典型用法代码示例。如果您正苦于以下问题：Python SimpleClient.has_metadata_for_topic方法的具体用法？Python SimpleClient.has_metadata_for_topic怎么用？Python SimpleClient.has_metadata_for_topic使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类kafka.SimpleClient的用法示例。
在下文中一共展示了SimpleClient.has_metadata_for_topic方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_has_metadata_for_topic
# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import has_metadata_for_topic [as 别名]
def test_has_metadata_for_topic(self, protocol, conn):
mock_conn(conn)
brokers = [
BrokerMetadata(0, 'broker_1', 4567, None),
BrokerMetadata(1, 'broker_2', 5678, None)
]
resp0_brokers = list(map(itemgetter(0, 1, 2), brokers))
topics = [
(NO_LEADER, 'topic_still_creating', []),
(UNKNOWN_TOPIC_OR_PARTITION, 'topic_doesnt_exist', []),
(NO_ERROR, 'topic_noleaders', [
(NO_LEADER, 0, -1, [], []),
(NO_LEADER, 1, -1, [], []),
]),
]
protocol.decode_metadata_response.return_value = MetadataResponse[0](resp0_brokers, topics)
client = SimpleClient(hosts=['broker_1:4567'])
# Topics with no partitions return False
self.assertFalse(client.has_metadata_for_topic('topic_still_creating'))
self.assertFalse(client.has_metadata_for_topic('topic_doesnt_exist'))
# Topic with partition metadata, but no leaders return True
self.assertTrue(client.has_metadata_for_topic('topic_noleaders'))示例2: KafkaIntegrationTestCase
# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import has_metadata_for_topic [as 别名]
class KafkaIntegrationTestCase(unittest.TestCase):
create_client = True
topic = None
zk = None
server = None
def setUp(self):
super(KafkaIntegrationTestCase, self).setUp()
if not os.environ.get('KAFKA_VERSION'):
self.skipTest('Integration test requires KAFKA_VERSION')
if not self.topic:
topic = "%s-%s" % (self.id()[self.id().rindex(".") + 1:], random_string(10))
self.topic = topic
if self.create_client:
self.client = SimpleClient('%s:%d' % (self.server.host, self.server.port))
timeout = time.time() + 30
while time.time() < timeout:
try:
self.client.load_metadata_for_topics(self.topic, ignore_leadernotavailable=False)
if self.client.has_metadata_for_topic(topic):
break
except (LeaderNotAvailableError, InvalidTopicError):
time.sleep(1)
else:
raise KafkaTimeoutError('Timeout loading topic metadata!')
# Ensure topic partitions have been created on all brokers to avoid UnknownPartitionErrors
# TODO: It might be a good idea to move this to self.client.ensure_topic_exists
for partition in self.client.get_partition_ids_for_topic(self.topic):
while True:
try:
req = OffsetRequestPayload(self.topic, partition, -1, 100)
self.client.send_offset_request([req])
break
except (NotLeaderForPartitionError, UnknownTopicOrPartitionError, FailedPayloadsError) as e:
if time.time() > timeout:
raise KafkaTimeoutError('Timeout loading topic metadata!')
time.sleep(.1)
self._messages = {}
def tearDown(self):
super(KafkaIntegrationTestCase, self).tearDown()
if not os.environ.get('KAFKA_VERSION'):
return
if self.create_client:
self.client.close()
def current_offset(self, topic, partition):
try:
offsets, = self.client.send_offset_request([OffsetRequestPayload(topic,
partition, -1, 1)])
except Exception:
# XXX: We've seen some UnknownErrors here and can't debug w/o server logs
self.zk.child.dump_logs()
self.server.child.dump_logs()
raise
else:
return offsets.offsets[0]
def msgs(self, iterable):
return [self.msg(x) for x in iterable]
def msg(self, s):
if s not in self._messages:
self._messages[s] = '%s-%s-%s' % (s, self.id(), str(uuid.uuid4()))
return self._messages[s].encode('utf-8')
def key(self, k):
return k.encode('utf-8')