本文整理汇总了Python中trove.instance.models.DBInstance.get_by方法的典型用法代码示例。如果您正苦于以下问题：Python DBInstance.get_by方法的具体用法？Python DBInstance.get_by怎么用？Python DBInstance.get_by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trove.instance.models.DBInstance的用法示例。
在下文中一共展示了DBInstance.get_by方法的1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: _create_guest_queue
# 需要导入模块: from trove.instance.models import DBInstance [as 别名]
# 或者: from trove.instance.models.DBInstance import get_by [as 别名]
def _create_guest_queue(self):
"""Call to construct, start and immediately stop rpc server in order
to create a queue to communicate with the guestagent. This is
method do nothing in case a queue is already created by
the guest
"""
from trove.instance.models import DBInstance
server = None
target = messaging.Target(topic=self._get_routing_key(),
server=self.id,
version=self.API_BASE_VERSION)
try:
instance = DBInstance.get_by(id=self.id)
instance_key = instance.key if instance else None
server = rpc.get_server(target, [], key=instance_key)
server.start()
finally:
if server is not None:
server.stop()
server.wait()