def _parse_path(p_names):
"""Parses a list of path names for path keys.
Args:
p_names: (list) of path elements, which may include keys.
Returns:
a gnmi_pb2.Path object representing gNMI path elements.
Raises:
XpathError: Unabled to parse the xpath provided.
"""
gnmi_elems = []
for word in p_names:
word_search = _RE_PATH_COMPONENT.search(word)
if not word_search: # Invalid path specified.
raise XpathError('xpath component parse error: %s' % word)
if word_search.group('key') is not None: # A path key was provided.
gnmi_elems.append(
gnmi_pb2.PathElem(
name=word_search.group('pname'),
key={word_search.group('key'):
word_search.group('value')}))
else:
gnmi_elems.append(gnmi_pb2.PathElem(name=word, key={}))
return gnmi_pb2.Path(elem=gnmi_elems)
def _parse_path(p_names):
"""Parses a list of path names for path keys.
Args:
p_names: (list) of path elements, which may include keys.
Returns:
a gnmi_pb2.Path object representing gNMI path elements.
Raises:
XpathError: Unabled to parse the xpath provided.
p_names will get passed in a list for examples ['interfaces', 'interface[name=Ethernet1]', 'state', 'counters']
I think this is where it actually calls everything and returns back paths from the function of what is actually available.
"""
gnmi_elems = []
for word in p_names:
word_search = _RE_PATH_COMPONENT.search(word)
if not word_search: # Invalid path specified.
raise XpathError('xpath component parse error: %s' % word)
if word_search.group('key') is not None: # A path key was provided.
tmp_key = {}
for x in re.findall(r'\[([^]]*)\]', word):
tmp_key[x.split("=")[0]] = x.split("=")[-1]
gnmi_elems.append(gnmi_pb2.PathElem(name=word_search.group(
'pname'), key=tmp_key))
else:
gnmi_elems.append(gnmi_pb2.PathElem(name=word, key={}))
return gnmi_pb2.Path(elem=gnmi_elems)
def ParsePath(p_names: Iterable[Text]) -> gnmi_pb2.Path:
"""Parses a list of path names for path keys.
Args:
p_names: (list) of path elements, which may include keys.
Returns:
a gnmi_pb2.Path object representing gNMI path elements.
Raises:
XpathError: Unabled to parse the xpath provided.
"""
gnmi_elems = []
for word in p_names:
word_search = _RE_PATH_COMPONENT.search(word)
if not word_search: # Invalid path specified.
raise XpathError('xpath component parse error: %s' % word)
if word_search.group('key') is not None: # A path key was provided.
tmp_key = {}
for x in re.findall(r'\[([^]]*)\]', word):
tmp_key[x.split('=')[0]] = x.split('=')[-1]
gnmi_elems.append(
gnmi_pb2.PathElem(name=word_search.group('pname'),
key=tmp_key))
else:
gnmi_elems.append(gnmi_pb2.PathElem(name=word, key={}))
return gnmi_pb2.Path(elem=gnmi_elems)
def _parse_path(p_names):
gnmi_elems = []
for word in p_names:
word_search = _RE_PATH_COMPONENT.search(word)
if not word_search: # Invalid path specified.
raise XpathError('xpath component parse error: %s' % word)
if word_search.group('key') is not None: # A path key was provided.
tmp_key = {}
for x in re.findall(r'\[([^]]*)\]', word):
tmp_key[x.split("=")[0]] = x.split("=")[-1]
gnmi_elems.append(
gnmi_pb2.PathElem(name=word_search.group('pname'),
key=tmp_key))
else:
gnmi_elems.append(gnmi_pb2.PathElem(name=word, key={}))
return gnmi_pb2.Path(elem=gnmi_elems)
def GetRequest(stub, path):
"""Issue a gNMI GetRequest for the given path."""
path_list = [gnmi_pb2.PathElem(name=path, key={})]
paths = gnmi_pb2.Path(elem=path_list)
# Metadata is User/pass for our example gNMI Target
response = stub.Get(gnmi_pb2.GetRequest(path=[paths]),
metadata=[('username', 'foo'), ('password', 'bar')])
return response
def path_from_string(path='/'):
mypath = []
for e in list_from_path(path):
eName = e.split("[", 1)[0]
eKeys = re.findall('\[(.*?)\]', e)
dKeys = dict(x.split('=', 1) for x in eKeys)
mypath.append(gnmi_pb2.PathElem(name=eName, key=dKeys))
return gnmi_pb2.Path(elem=mypath)
print("Supported Encodings:")
for e in capabilityResponse.supported_encodings:
print(e)
print("gNMI Version: ", capabilityResponse.gNMI_version)
if args.paths:
d_print("Creating getRequest...")
prefix=gnmi_pb2.Path(origin=args.origin)
# "repeated" PB message fields like "elem" and "path" must be Python iterables
paths = []
for path in args.paths:
pathElems = []
for elem in path.strip("/").split("/"):
# TODO: add support for key-value pairs
pathElems.append(gnmi_pb2.PathElem(name=elem))
d_print("pathElems=", pathElems)
paths.append(gnmi_pb2.Path(elem=pathElems))
d_print("constructed paths=", paths)
getRequest = gnmi_pb2.GetRequest(prefix=prefix, path=paths, type='ALL',
encoding='JSON_IETF')
d_print("getRequest=", getRequest)
d_print("Executing gNMI Get()...")
getResponse = stub.Get(getRequest, metadata=metadata, timeout=args.timeout)
#d_print("getResponse: ", getResponse.notification)
print("Response content: ")
for n in getResponse.notification: # response can have multiple notifications
print("timestamp: ", n.timestamp)
print("alias: ", n.alias)
# Assgin the gRPC channel to our gNMI Target.
channel = grpc.secure_channel('www.example.com:10161', creds)
stub = gnmi_pb2_grpc.gNMIStub(channel)
return stub
def GetRequest(stub, path_list):
"""Issue a gNMI GetRequest for the given path."""
paths = gnmi_pb2.Path(elem=path_list)
# Metadata is User/pass for our example gNMI Target
response = stub.Get(gnmi_pb2.GetRequest(path=[paths]),
metadata=[('username', 'foo'), ('password', 'bar')])
return response
if __name__ == '__main__':
all_configs = CreateConfigs()
stub = SetUpChannel()
path_list = [
gnmi_pb2.PathElem(name='interfaces', key={}),
gnmi_pb2.PathElem(name='config', key={})
]
gnmi_response = GetRequest(stub, path_list)
js_response = json.loads(
gnmi_response.notification[0].update[0].val.json_val)
pybindJSONDecoder.load_json(js_response,
None,
None,
obj=configs.interfaces.config)
print(pybindJSON.dumps(configs, indent=2))
