contentmonster/classes/retry.py
2021-11-26 11:23:39 +01:00

33 lines
1.1 KiB
Python

from paramiko.ssh_exception import SSHException, NoValidConnectionsError
class retry:
"""Decorator used to automatically retry operations throwing exceptions
"""
def __init__(self, exceptions: tuple[BaseException] = None):
"""Initializing the retry decorator
Args:
exceptions (tuple, optional): A tuple containing exception classes
that should be handled by the decorator. If none, handle only
paramiko.ssh_exception.SSHException/NoValidConnectionsError.
Defaults to None.
"""
self.exceptions = exceptions or (SSHException, NoValidConnectionsError)
def __call__(self, f):
"""Return a function through the retry decorator
Args:
f (function): Function to wrap in the decorator
Returns:
function: Function wrapping the passed function
"""
def wrapped_f(*args, **kwargs):
while True:
try:
return f(*args, **kwargs)
except self.exceptions as e:
print("Caught expected exception: " + repr(e))
return wrapped_f