def nquads_transform(doc):
'''
This function takes a json-ld document,
and parse it into nquads format (rdf)
'''
t = jsonld.JsonLdProcessor()
nquads = t.parse_nquads(jsonld.to_rdf(doc, {'format': 'application/nquads'}))['@default']
return nquads
def get(self):
t_start = datetime.datetime.now()
args_dict = {
arg_key: arg_val
for arg_key, arg_val in request.args.items()
if arg_key not in ['compact']
}
compact = request.args.get('compact')
# Subselect for selected Node-IDs
node_ids = db.session.query(Node.id)
t_delta1 = int(
(datetime.datetime.now() - t_start).total_seconds() * 1000)
for arg_key, arg_val in args_dict.items():
filter_it = Node.json[arg_key] == cast(arg_val, JSON)
node_ids = node_ids.filter(filter_it)
node_ids = node_ids.group_by(Node.id).subquery()
# Main select for all Nodes with the IDs from the subselect
query = Node.query.join(node_ids, Node.id == node_ids.c.id)
t_delta2 = int(
(datetime.datetime.now() - t_start).total_seconds() * 1000)
expanded_list, expanded_len, tst_3 = self.expanded_list(query)
t_delta3 = int((tst_3 - t_start).total_seconds() * 1000)
t_delta4 = int(
(datetime.datetime.now() - t_start).total_seconds() * 1000)
if compact is None:
return expanded_list, 200, {
'Access-Control-Expose-Headers': 'X-Total-Count',
'X-Total-Count': expanded_len,
'X-Perf-1-MSec': t_delta1,
'X-Perf-2-MSec': t_delta2,
'X-Perf-3-MSec': t_delta3,
'X-Perf-4-MSec': t_delta4,
}
else:
return_list = []
jsonld_proc = jsonld.JsonLdProcessor()
for expanded_node in expanded_list:
compacted_node = jsonld_proc.compact(expanded_node,
compact,
options=None)
return_list.append(compacted_node)
t_delta5 = int(
(datetime.datetime.now() - t_start).total_seconds() * 1000)
return return_list, 200, {
'Access-Control-Expose-Headers': 'X-Total-Count',
'X-Total-Count': len(return_list),
'X-Perf-1-MSec': t_delta1,
'X-Perf-2-MSec': t_delta2,
'X-Perf-3-MSec': t_delta3,
'X-Perf-4-MSec': t_delta4,
'X-Perf-5-MSec': t_delta5,
}
def _doit(self, j):
proc = jsonld.JsonLdProcessor()
context = j['@context']
bads = []
try:
ctx = proc.process_context(proc._get_initial_context({}), context,
{})
except jsonld.JsonLdError as e:
for k, v in context.items():
c = {k: v, '@version': context['@version']}
try:
ctx = proc.process_context(proc._get_initial_context({}),
c, {})
except jsonld.JsonLdError as e:
bads.append((k, v))
assert not bads, bads
def my_expand_compact(query_in):
expand = request.args.get('expand')
compact = request.args.get('compact')
if expand and expand.lower() == 'true':
ret_list = [i.expanded for i in query_in]
ret_len = len(ret_list)
elif compact is not None:
ret_dict = {}
for obj in query_in:
if obj.id not in ret_dict:
ret_dict[obj.id] = {}
ret_dict[obj.id].update(obj.expanded)
ret_list = []
jsonld_proc = jsonld.JsonLdProcessor()
for expanded_node in ret_dict.values():
compacted_node = jsonld_proc.compact(expanded_node,
compact,
options=None)
ret_list.append(compacted_node)
ret_len = len(ret_list)
else:
ret_list = [i.json for i in query_in]
ret_len = len(ret_list)
return ret_list, ret_len
def nquads_transform(doc):
t = jsonld.JsonLdProcessor()
nquads = t.parse_nquads(jsonld.to_rdf(doc, {'format': 'application/nquads'}))['@default']
return nquads
ctx = json.load(fh)
argv_i += 2
else:
ctx = None
if len(sys.argv) > argv_i:
if sys.argv[argv_i] == '-l':
list_file = sys.argv[argv_i+1]
with open(list_file, 'r') as fh:
files = [f.strip() for f in fh]
else:
files = sys.argv[argv_i:]
else:
files = [f.strip() for f in sys.stdin]
proc = jsonld.JsonLdProcessor()
r = re.compile(r'_:(\S+)')
def convert(p):
filename = str(p)
try:
with p.open('r') as fh:
bnode_map = {}
input = json.load(fh)
try:
id = input['id']
except KeyError as e:
print(f'*** Skipping {filename}')
return 0
if not id.startswith('urn:uuid:'):
raise JSONLDError(f"file doesn't have a valid top-level UUID: {filename}")
def __init__(self):
self.processor = jsonld.JsonLdProcessor()
self.temp_attr_id = None
self.temp_properties = None
self.logger, self.logfile = get_logger('jsonld')
def __init__(self):
self.processor = jsonld.JsonLdProcessor()
self.temp_attr_id = None