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"""Exceptions used in the Face layer of RPC Framework."""
import abc
[docs]class NoSuchMethodError(Exception):
"""Raised by customer code to indicate an unrecognized RPC method name.
Attributes:
name: The unrecognized name.
"""
def __init__(self, name):
"""Constructor.
Args:
name: The unrecognized RPC method name.
"""
super(NoSuchMethodError, self).__init__()
self.name = name
[docs]class RpcError(Exception):
"""Common super type for all exceptions raised by the Face layer.
Only RPC Framework should instantiate and raise these exceptions.
"""
__metaclass__ = abc.ABCMeta
[docs]class CancellationError(RpcError):
"""Indicates that an RPC has been cancelled."""
[docs]class ExpirationError(RpcError):
"""Indicates that an RPC has expired ("timed out")."""
[docs]class NetworkError(RpcError):
"""Indicates that some error occurred on the network."""
[docs]class ServicedError(RpcError):
"""Indicates that the Serviced failed in the course of an RPC."""
[docs]class ServicerError(RpcError):
"""Indicates that the Servicer failed in the course of servicing an RPC."""