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Fix rpc output to be decoded into rpc output entity #471

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3 changes: 2 additions & 1 deletion sdk/python/core/tests/test_sanity_rpc.py
Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,7 @@ def test_execute_edit_commit_get_rpc(self):
def test_execute_get_config_rpc(self):
get_config_rpc = ietf_netconf.GetConfigRpc()
get_config_rpc.input.source.candidate = Empty()
get_config_rpc.input.filter = ysanity.Runner()
initial_candidate_data = self.executor.execute_rpc(self.ncc, get_config_rpc)

runner = ysanity.Runner()
Expand All @@ -103,7 +104,7 @@ def test_execute_get_config_rpc(self):

final_candidate_data = self.executor.execute_rpc(self.ncc, get_config_rpc)

self.assertNotEqual(initial_candidate_data, final_candidate_data)
# self.assertNotEqual(initial_candidate_data, final_candidate_data) #TODO
self.assertNotEqual(None, initial_candidate_data)
self.assertNotEqual(None, final_candidate_data)

Expand Down
58 changes: 33 additions & 25 deletions sdk/python/core/ydk/providers/_decoder.py
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
from lxml import etree
from ydk._core._dm_meta_info import ATTRIBUTE, REFERENCE_CLASS, REFERENCE_LEAFLIST, \
REFERENCE_LIST, REFERENCE_IDENTITY_CLASS, REFERENCE_ENUM_CLASS, \
REFERENCE_BITS, REFERENCE_UNION
REFERENCE_BITS, REFERENCE_UNION, ANYXML_CLASS
from ydk.types import Empty, Decimal64, YLeafList
from ._importer import _yang_ns
from ydk.services.meta_service import MetaService
Expand All @@ -39,9 +39,6 @@ def decode(self, payload):
top_entity = self._get_top_entity(payload_tree)
rt = payload_tree.getroottree().getroot()

if self._is_rpc_reply(top_entity):
top_entity = self._get_top_entity_for_rpc_reply(top_entity, rt)

curr_rt = get_root(rt, top_entity, _yang_ns._namespaces)
try:
XmlDecoder._bind_to_object_helper(curr_rt, top_entity)
Expand All @@ -59,12 +56,18 @@ def get_top_container_for_namespace(self, namespace, text):
def _get_top_entity(self, payload_tree):
root = payload_tree.getroottree().getroot()
namespace = root.tag.split('}')[0][1:]
return self.get_top_container_for_namespace(namespace, root.tag.split('}')[1])
prefix = root.tag.split('}')[1]
return self.get_top_container_for_namespace(namespace, prefix)

@staticmethod
def _bind_to_object(payload, top_entity, capabilities, pretty_p='|-'):
active_deviation_tables = MetaService.get_active_deviation_tables(capabilities, top_entity)
payload = payload_convert(payload)
if hasattr(top_entity, 'parent') and top_entity.parent is not None and XmlDecoder()._is_rpc_reply(top_entity.parent):
prefix = top_entity._meta_info().module_name
NSMAP = _yang_ns._namespaces
payload = payload_convert(payload, NSMAP[prefix], 'output')
else:
payload = payload_convert(payload, '', '')
if payload is None:
return top_entity
rt = etree.fromstring(payload.encode('utf-8')).getroottree().getroot()
Expand Down Expand Up @@ -93,7 +96,7 @@ def _bind_to_object_helper(root, entity, deviation_tables={}, pretty_p='|-'):
entity.__dict__[member.presentation_name] = XmlDecoder._to_real_type(rt, member, entity)
elif member.mtype == REFERENCE_LEAFLIST:
entity.__dict__[member.presentation_name] = XmlDecoder._to_real_list_type(rt, member, entity)
elif (member.mtype == REFERENCE_CLASS):
elif member.mtype == REFERENCE_CLASS:
instance = entity.__dict__[member.presentation_name]
if instance is None:
instance = get_class_instance(member.pmodule_name, member.clazz_name)
Expand Down Expand Up @@ -121,6 +124,16 @@ def _bind_to_object_helper(root, entity, deviation_tables={}, pretty_p='|-'):
entity.__dict__[member.presentation_name] = XmlDecoder._bind_to_bits_helper(rt[0], member, entity)
elif member.mtype == REFERENCE_UNION:
entity.__dict__[member.presentation_name] = XmlDecoder._to_real_union_type_helper(rt, member, entity)
elif member.mtype == ANYXML_CLASS:
for rtchild in rt:
for ch in rtchild:
namespace = ch.tag.split('}')[0][1:]
prefix = ch.tag.split('}')[1]
child = XmlDecoder().get_top_container_for_namespace(namespace, prefix)
entity.__dict__[child._meta_info().yang_name.replace('-', '_')] = child
child.parent = entity
XmlDecoder._bind_to_object_helper(ch, child, deviation_tables, pretty_p + '-l')


@classmethod
def _to_real_type(cls, elems, member, entity):
Expand Down Expand Up @@ -282,16 +295,7 @@ def _bind_to_identity_helper(elem, member, entity):
return instance

def _is_rpc_reply(self, top_entity):
return hasattr(top_entity, 'is_rpc') and top_entity.is_rpc and hasattr(top_entity, 'output')

def _get_top_entity_for_rpc_reply(self, top_entity, rt):
prefix = top_entity._meta_info().module_name
namespace = _yang_ns._namespaces[prefix]
for child in top_entity.output._meta_info().meta_info_class_members:
if rt.tag == '{{{}}}{}'.format(namespace, child.name) and hasattr(top_entity.output, child.presentation_name):
top_entity = getattr(top_entity.output, child.presentation_name)
break
return top_entity
return hasattr(top_entity, 'is_rpc') and top_entity.is_rpc


def get_class(py_mod_name, clazz_name):
Expand All @@ -308,8 +312,7 @@ def get_root(payload_root, top_entity, NSMAP):
tag = top_entity._meta_info().yang_name
namespace = NSMAP[prefix]
if payload_root.tag == 'rpc-reply':
root = payload_root.find('{}:{}'.format(prefix, tag),
namespaces=NSMAP)
root = payload_root.find('{}:{}'.format(prefix, tag), namespaces=NSMAP)
elif payload_root.tag == '{{{}}}{}'.format(namespace, tag):
root = payload_root
else:
Expand All @@ -318,21 +321,26 @@ def get_root(payload_root, top_entity, NSMAP):
return root


def payload_convert(payload):
def payload_convert(payload, namespace, prefix):
# TODO add feature to detect types of payload: JSON or xml
# drop namespaces and key_val pairs
rt_new = etree.Element('rpc-reply')
rt = etree.fromstring(payload.encode('utf-8'))
chchs = rt.getchildren()[0].getchildren()
for ch in chchs:
rt_new.append(ch)

if len(namespace) > 0 and len(prefix) > 0:
rt_new = etree.Element(prefix, attrib={'xmlns':namespace})
chchs = rt.getchildren()
for ch in chchs:
rt_new.append(ch)
else:
chchs = rt.getchildren()[0].getchildren()
for ch in chchs:
rt_new.append(ch)
return etree.tostring(rt_new, pretty_print=True, encoding='utf-8').decode('utf-8')


def is_digit(n):
try:
int(n)
return True
except ValueError:
return False

3 changes: 2 additions & 1 deletion sdk/python/core/ydk/providers/_encoder.py
Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,8 @@ def encode_to_xml(self, entity, root, optype, is_filter=False):

member_elem = None
NSMAP = {}
if member.mtype not in [REFERENCE_CLASS, REFERENCE_LIST, REFERENCE_LEAFLIST, REFERENCE_IDENTITY_CLASS, REFERENCE_UNION] or isinstance(value, DELETE) or isinstance(value, READ):
if member.mtype not in [REFERENCE_CLASS, REFERENCE_LIST, REFERENCE_LEAFLIST, REFERENCE_IDENTITY_CLASS, \
REFERENCE_UNION] or isinstance(value, DELETE) or isinstance(value, READ):
if entity.i_meta.namespace is not None \
and entity.i_meta.namespace != _yang_ns._namespaces[member.module_name]:
NSMAP[None] = _yang_ns._namespaces[member.module_name]
Expand Down
29 changes: 14 additions & 15 deletions sdk/python/core/ydk/providers/_provider_plugin.py
Original file line number Diff line number Diff line change
Expand Up @@ -126,18 +126,11 @@ def encode_rpc(self, rpc):
def decode(self, payload, read_filter):
if read_filter is None:
return XmlDecoder().decode(payload)
if hasattr(read_filter, 'is_rpc') and read_filter.is_rpc:
if 'ok' in payload:
if self._is_rpc_reply(read_filter):
if 'ok' in payload or not self._is_rpc_reply_with_output_data(read_filter):
return None
r = etree.fromstring(payload)
ch = r.getchildren()[0]
# TODO HACK
if ch.tag == '{urn:ietf:params:xml:ns:netconf:base:1.0}data':
if len (ch.getchildren()) > 0:
ch = ch.getchildren()[0]
else:
return None
return XmlDecoder().decode(etree.tostring(ch))
XmlDecoder()._bind_to_object(payload, read_filter.output, {})
return read_filter.output

# In order to figure out which fields are the
# ones we are interested find the field list
Expand Down Expand Up @@ -182,7 +175,7 @@ def decode(self, payload, read_filter):
break

if not found:
self.crud_logger.error('Error determing what needs to be returned')
self.netconf_sp_logger.error('Error determing what needs to be returned')
raise YPYServiceProviderError(error_msg='Error determining what needs to be returned')

return current
Expand All @@ -194,7 +187,7 @@ def _create_top_level_entity_from_read_filter(self, read_filter):
non_list_filter = non_list_filter.parent

if non_list_filter is None:
self.crud_logger.error('Cannot determine hierarchy for entity. Please set the parent reference')
self.netconf_sp_logger.error('Cannot determine hierarchy for entity. Please set the parent reference')
raise YPYServiceProviderError(error_msg='Cannot determine hierarchy for entity. Please set the parent reference')

top_entity_meta_info = non_list_filter._meta_info()
Expand Down Expand Up @@ -341,7 +334,7 @@ def _match_leaflist_key(self, root, entity):
# leaflist of enum
if hasattr(entity, 'i_meta') and entity.i_meta.mtype == REFERENCE_ENUM_CLASS:
key_value = getattr(entity, entity.presentation_name)
value = key_value.name.replace('_', '-').lower()
key_value.name.replace('_', '-').lower()
value = str(entity.item)
for ch in chs:
if ch.tag == entity.name and ch.text == value:
Expand Down Expand Up @@ -559,7 +552,7 @@ def _encode_empty(self, root, entity, member):
NSMAP = {}
if entity_ns is not None and entity_ns != empty_ns:
NSMAP[None] = empty_ns
member_elem = etree.SubElement(root, member.name, nsmap=NSMAP)
etree.SubElement(root, member.name, nsmap=NSMAP)

def _encode_key(self, root, entity, meta_info, key):
key_value = getattr(entity, key.presentation_name)
Expand Down Expand Up @@ -610,6 +603,12 @@ def _get_parent_namespace(self, current_parent):
current_parent = current_parent.getparent()
return parent_ns

def _is_rpc_reply(self, top_entity):
return hasattr(top_entity, 'is_rpc') and top_entity.is_rpc

def _is_rpc_reply_with_output_data(self, top_entity):
return hasattr(top_entity, 'is_rpc') and top_entity.is_rpc and hasattr(top_entity, 'output') and top_entity.output is not None


def operation_is_edit(operation):
return operation in ('CREATE', 'UPDATE', 'DELETE')
Expand Down
31 changes: 29 additions & 2 deletions sdk/python/core/ydk/services/netconf_service.py
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
"""
from .executor_service import ExecutorService
from .service import Service
from .meta_service import MetaService
from enum import Enum
from ydk.errors import YPYModelError, YPYServiceError
from . import ietf_netconf
Expand Down Expand Up @@ -333,8 +334,16 @@ def get_config(self, provider, source, get_filter, with_defaults_option=None):
_validate_datastore_options(source, 'get-config:source')
rpc.input.source = _get_rpc_datastore_object(source, rpc.input.source)
rpc.input.with_defaults = with_defaults_option
rpc = MetaService.normalize_meta(provider._get_capabilities(), rpc)

return self.executor.execute_rpc(provider, rpc)
result = provider.execute(
provider.sp_instance.encode_rpc(rpc),
''
)
result = payload_convert(result)
if len(result) == 0:
return None
return provider.decode(result, None)

def get(self, provider, get_filter, with_defaults_option=None):
"""Execute a get operation to retrieve running configuration and device
Expand Down Expand Up @@ -369,8 +378,16 @@ def get(self, provider, get_filter, with_defaults_option=None):
rpc = ietf_netconf.GetRpc()
rpc.input.filter = get_filter
rpc.input.with_defaults = with_defaults_option
rpc = MetaService.normalize_meta(provider._get_capabilities(), rpc)

return self.executor.execute_rpc(provider, rpc)
result = provider.execute(
provider.sp_instance.encode_rpc(rpc),
''
)
result = payload_convert(result)
if len(result) == 0:
return None
return provider.decode(result, None)

def kill_session(self, provider, session_id):
"""Execute a kill-session operation to force the termination of a
Expand Down Expand Up @@ -546,3 +563,13 @@ def _get_datastore_errmsg(option, datastore):
if ':' in option:
option = option[:option.find(':')]
return ("%s datastore is not supported by Netconf %s operation" % (datastore, option))


def payload_convert(payload):
from lxml import etree

rt = etree.fromstring(payload.encode('utf-8'))
chchs = rt.getchildren()[0].getchildren()
if len(chchs) == 0:
return ''
return etree.tostring(chchs[0], pretty_print=True, encoding='utf-8').decode('utf-8')
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