def invoke(self, api, *arg):
"""A convenience routine which wraps invoke_elem().
It constructs an NaElement with name $api, and for
each argument name/value pair, adds a child element
to it. It's an error to have an even number of
arguments to this function.
Example: myserver->invoke('snapshot-create',
'snapshot', 'mysnapshot',
'volume', 'vol0');
"""
num_parms = len(arg)
if ((num_parms & 1) != 0):
return self.fail_response(
13001, "in Zapi::invoke, invalid number of parameters")
xi = NaElement(api)
i = 0
while (i < num_parms):
key = arg[i]
i = i + 1
value = arg[i]
i = i + 1
xi.child_add(NaElement(key, value))
return self.invoke_elem(xi)
def invoke(self, api, *arg):
"""A convenience routine which wraps invoke_elem().
It constructs an NaElement with name $api, and for
each argument name/value pair, adds a child element
to it. It's an error to have an even number of
arguments to this function.
Example: myserver->invoke('snapshot-create',
'snapshot', 'mysnapshot',
'volume', 'vol0');
"""
num_parms = len(arg)
if ((num_parms & 1)!= 0):
return self.fail_response(13001,"in Zapi::invoke, invalid number of parameters")
xi = NaElement(api)
i = 0
while(i < num_parms):
key = arg[i]
i = i+1
value = arg[i]
i = i+1
xi.child_add(NaElement(key, value))
return self.invoke_elem(xi)
def start_element(self, name, attrs):
"""This is a private function, not to be called from outside NaElement
"""
n = NaElement(name)
self.ZAPI_stack.append(n)
self.ZAPI_atts = {}
attr_name = list(attrs.keys())
attr_value = list(attrs.values())
i = 0
for att in attr_name:
val = attr_value[i]
i = i + 1
self.ZAPI_atts[att] = val
n.attr_set(att, val)
def fail_response(self, errno, reason):
"""This is a private function, not to be called from outside NaElement
"""
n = NaElement("results")
n.attr_set("status", "failed")
n.attr_set("reason", reason)
n.attr_set("errno", errno)
return n
def start_element(self, name, attrs):
"""This is a private function, not to be called from outside NaElement
"""
n = NaElement(name)
self.ZAPI_stack.append(n)
self.ZAPI_atts = {}
attr_name = list(attrs.keys())
attr_value = list(attrs.values())
i = 0
for att in attr_name :
val = attr_value[i]
i = i+1
self.ZAPI_atts[att] = val
n.attr_set(att,val)
def _invoke_api(conn, *args):
api = NaElement(*args)
call = conn.invoke_elem(api)
if call.results_errno() != 0:
raise IOError('Failed api call=%s, errno=%s, desc=%s' %
(args, call.results_errno(), call.sprintf()))
return call
def fail_response(self, errno, reason):
"""This is a private function, not to be called from outside NaElement
"""
n = NaElement("results")
n.attr_set("status","failed")
n.attr_set("reason",reason)
n.attr_set("errno",errno)
return n