def _load_service_functions(self, service):
"""
Loads and stores functions (VNFs) referenced in the specified service
:param service: service
:return: True if successful, None otherwise
"""
log.debug("Loading functions of the service.")
# get VNFD file list from provided dpath
vnfd_files = list_files(self._dpath, self._dext)
log.debug("Found {0} descriptors in dpath='{2}': {1}".format(
len(vnfd_files), vnfd_files, self._dpath))
# load all VNFDs
path_vnfs = read_descriptor_files(vnfd_files)
# check for errors
if 'network_functions' not in service.content:
log.error("Service doesn't have any functions. "
"Missing 'network_functions' section.")
return
functions = service.content['network_functions']
if functions and not path_vnfs:
log.error("Service references VNFs but none could be found in "
"'{0}'. Please specify another '--dpath'".format(
self._dpath))
return
# store function descriptors referenced in the service
for function in functions:
fid = build_descriptor_id(function['vnf_vendor'],
function['vnf_name'],
function['vnf_version'])
if fid not in path_vnfs.keys():
log.error("Referenced function descriptor id='{0}' couldn't "
"be loaded".format(fid))
return
vnf_id = function['vnf_id']
new_func = self._storage.create_function(path_vnfs[fid])
service.associate_function(new_func, vnf_id)
return True
def _load_service_functions(self, service):
"""
Loads and stores functions (VNFs) referenced in the specified service
:param service: service
:return: True if successful, None otherwise
"""
log.debug("Loading functions of the service.")
# get VNFD file list from provided dpath
vnfd_files = list_files(self._dpath, self._dext)
log.debug("Found {0} descriptors in dpath='{2}': {1}"
.format(len(vnfd_files), vnfd_files, self._dpath))
# load all VNFDs
path_vnfs = read_descriptor_files(vnfd_files)
# check for errors
if 'network_functions' not in service.content:
log.error("Service doesn't have any functions. "
"Missing 'network_functions' section.")
return
functions = service.content['network_functions']
if functions and not path_vnfs:
log.error("Service references VNFs but none could be found in "
"'{0}'. Please specify another '--dpath'"
.format(self._dpath))
return
# store function descriptors referenced in the service
for function in functions:
fid = build_descriptor_id(function['vnf_vendor'],
function['vnf_name'],
function['vnf_version'])
if fid not in path_vnfs.keys():
log.error("Referenced function descriptor id='{0}' couldn't "
"be found in path '{1}'".format(fid, self._dpath))
return
vnf_id = function['vnf_id']
new_func = self._storage.create_function(path_vnfs[fid])
service.associate_function(new_func, vnf_id)
return True
def validate_function(self, vnfd_path):
"""
Validate one or multiple SONATA functions (VNFs).
By default, it performs the following validations: syntax, integrity
and network topology.
:param vnfd_path: function descriptor (VNFD) filename or
a directory to search for VNFDs
:return: True if all validations were successful, False otherwise
"""
self._assert_configuration()
# validate multiple VNFs
if os.path.isdir(vnfd_path):
log.info("Validating functions in path '{0}'".format(vnfd_path))
vnfd_files = list_files(vnfd_path, self._dext)
for vnfd_file in vnfd_files:
if not self.validate_function(vnfd_file):
return
return True
log.info("Validating function '{0}'".format(vnfd_path))
log.info("... syntax: {0}, integrity: {1}, topology: {2}".format(
self._syntax, self._integrity, self._topology))
function = self._storage.create_function(vnfd_path)
if not function:
evtlog.log("Couldn't store VNF of file '{0}'".format(vnfd_path),
'evt_function_invalid_descriptor')
return
if self._syntax and not self._validate_function_syntax(function):
return
if self._integrity and not self._validate_function_integrity(function):
return
if self._topology and not self._validate_function_topology(function):
return
return True
def validate_function(self, vnfd_path):
"""
Validate one or multiple SONATA functions (VNFs).
By default, it performs the following validations: syntax, integrity
and network topology.
:param vnfd_path: function descriptor (VNFD) filename or
a directory to search for VNFDs
:return: True if all validations were successful, False otherwise
"""
self._assert_configuration()
# validate multiple VNFs
if os.path.isdir(vnfd_path):
log.info("Validating functions in path '{0}'".format(vnfd_path))
vnfd_files = list_files(vnfd_path, self._dext)
for vnfd_file in vnfd_files:
if not self.validate_function(vnfd_file):
return
return True
log.info("Validating function '{0}'".format(vnfd_path))
log.info("... syntax: {0}, integrity: {1}, topology: {2}"
.format(self._syntax, self._integrity, self._topology))
function = self._storage.create_function(vnfd_path)
if not function:
log.critical("Couldn't store VNF of file '{0}'".format(vnfd_path))
return
if self._syntax and not self._validate_function_syntax(function):
return
if self._integrity and not self._validate_function_integrity(function):
return
if self._topology and not self._validate_function_topology(function):
return
return True
