def hasParseError_rdflib(q, parse_path=True):
"""
if has parse error, return true.
input:
q, the same as GetSPO_rdflib, one row from DataFrame with key: query
output:
boolean
"""
try:
# from ipdb import set_trace; set_trace()
pq = parser.parseQuery(q['query'])
if parse_path:
# using function in rdflib to absolutize/resolve prefixes
# may cause prefix error
prologue = translatePrologue(pq[0], None)
# using function in rdflib to simplify filter
inner_traverse(pq[1], inner_simplifyFilters)
pq[1] = traverse(pq[1],
visitPost=functools.partial(translatePName,
prologue=prologue))
# using function in rdflib to translate path
if 'where' in pq[1].keys():
pq[1]['where'] = traverse(pq[1]['where'],
visitPost=translatePath)
return False
except:
#from ipdb import set_trace; set_trace()
return True
def GetSPOfromQuery(q, getBlankNode=False):
pq = parser.parseQuery(q)
form = GetQueryForm(pq)
# using function in rdflib to absolutize/resolve prefixes
prologue = translatePrologue(pq[0], None)
pq[1] = traverse(pq[1],
visitPost=functools.partial(translatePName,
prologue=prologue))
# using function in rdflib to simplify filter
inner_traverse(pq[1], inner_simplifyFilters)
# using function in rdflib to translate path
if 'where' in pq[1].keys():
pq[1]['where'] = traverse(pq[1]['where'], visitPost=translatePath)
if form == 'DescribeQuery':
triples, graph, bind, values, service, filter_info, describe_var = proQueryForm(
pq)
else:
triples, graph, bind, values, service, filter_info = proQueryForm(pq)
so = GetSOFromTriple(triples, getBlankNode=getBlankNode)
p = GetPFromTriple(triples, getBlankNode=getBlankNode)
if form == 'DescribeQuery':
so = so + describe_var
return list(set(so + p))
def parseStr(query):
pq = parser.parseQuery(query)
# using function in rdflib to absolutize/resolve prefixes
# may cause prefix error
prologue = translatePrologue(pq[0], None)
# using function in rdflib to simplify filter
inner_traverse(pq[1], inner_simplifyFilters)
pq[1] = traverse(pq[1],
visitPost=functools.partial(translatePName,
prologue=prologue))
# using function in rdflib to translate path
if 'where' in pq[1].keys():
pq[1]['where'] = traverse(pq[1]['where'], visitPost=translatePath)
return pq
def GetInfo(query):
pq = parser.parseQuery(query)
prologue = translatePrologue(pq[0], None)
pq[1] = traverse(pq[1],
visitPost=functools.partial(translatePName,
prologue=prologue))
# using function in rdflib to simplify filter
inner_traverse(pq[1], inner_simplifyFilters)
# using function in rdflib to translate path
if 'where' in pq[1].keys():
pq[1]['where'] = traverse(pq[1]['where'], visitPost=translatePath)
info = proQueryForm(pq, additional=False)
return info