When list_ports() is executed, Class ApiCall will be created for becoming a decorator to examine the arguments as follows:
import sys
class ApiCall(object):
"""A Decorator to add support for format and tenant overriding"""
def __init__(self, function):
self.function = function
def __get__(self, instance, owner):
def with_params(*args, **kwargs):
"""
Temporarily sets the format and tenant for this request
"""
(format, tenant) = (instance.format, instance.tenant)
if 'format' in kwargs:
instance.format = kwargs['format']
if 'tenant' in kwargs:
instance.tenant = kwargs['tenant']
ret = self.function(instance, *args)
(instance.format, instance.tenant) = (format, tenant)
return ret
return with_params
class Client(object):
def __init__(self, tenant=None, format="xml"):
self.tenant = tenant
self.format = format
@ApiCall
def list_ports(self, network):
"""
Fetches a list of ports on a given network
"""
return network
def main():
client = Client(tenant="AAA",format="xml")
client.list_ports('my network')
sys.exit(0)
if __name__ == "__main__":
main()
