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ntriples_diff.py
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ntriples_diff.py
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# -*- coding: utf-8 -*-
# Owlready
# Copyright (C) 2013-2019 Jean-Baptiste LAMY
# LIMICS (Laboratoire d'informatique médicale et d'ingénierie des connaissances en santé), UMR_S 1142
# University Paris 13, Sorbonne paris-Cité, Bobigny, France
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#cp -f ./owlready2/test/test.owl /tmp/t.owl
#cp -f ./owlready2/test/test_inverse.owl /tmp/t.owl
#cp -f ./owlready2/test/test_reasoning.owl /tmp/t.owl
#cp -f ./owlready2/test/test_breakline.owl /tmp/t.owl
#cp -f ~/telechargements/base_med/obi.owl /tmp/t.owl
#rapper /tmp/t.owl > /tmp/rap.nt ; python -c 'b = open("/tmp/rap.nt", "rb").read(); lb = b.split(b"\n"); ls = [i.replace(b"\\" + b"\"", b"\\\\" + b"\"").decode("unicode-escape").replace("\n", "\\n") for i in lb]; s = "\n".join(ls); open("/tmp/rap2.nt", "w").write(s)'
#python ./owlready2/rdfxml_2_ntriples.py /tmp/t.owl > /tmp/py.nt
#python ./owlready2/ntriples_diff.py /tmp/rap.nt /tmp/py.nt --short
"""ntriples_diff.py
Compute the differences between 2 NTriples files. Take care of symmetric relations
and different blank node naming.
Usage:
ntriple_diff.py onto.nt : canonize the NTriples file.
ntriple_diff.py onto1.nt onto2.nt : compare the two NTriples files.
Options:
--short : shortify IRI and literal (more Human readable).
"""
import sys, os, warnings
def shortify(triples):
triples2 = []
for s,p,o, l in triples:
if "#" in s: s = "<%s" % s.split("#", 1)[-1]
if "#" in p: p = "<%s" % p.split("#", 1)[-1]
if o.startswith('"'):
o = o[1:].rsplit('"', 1)[0]
elif "#" in o:
o = "<%s" % o.split("#", 1)[-1]
triples2.append((s,p,o, l))
return triples2
symmetric_predicates = {
"<http://www.w3.org/2002/07/owl#complementOf>",
"<http://www.w3.org/2002/07/owl#inverseOf>",
"<http://www.w3.org/2002/07/owl#equivalentClass>",
"<http://www.w3.org/2002/07/owl#equivalentProperty>",
"<http://www.w3.org/2002/07/owl#sameAs>",
"<http://www.w3.org/2002/07/owl#disjointWith>",
}
useless_triples = {
("<http://www.w3.org/1999/02/22-rdf-syntax-ns#PlainLiteral>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
("<http://www.w3.org/2000/01/rdf-schema#Literal>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
("<http://www.w3.org/2001/XMLSchema#float>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
("<http://www.w3.org/2001/XMLSchema#integer>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
("<http://www.w3.org/2001/XMLSchema#nonNegativeInteger>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
("<http://www.w3.org/2001/XMLSchema#string>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Datatype>"),
}
class Blank(object):
def __init__(self):
self.triples = set()
self.name = None
def add_triple(self, s,p,o):
if isinstance(s, Blank): s = "_"
if isinstance(o, Blank): o = "_"
self.triples.add((s,p,o))
def get_name(self):
if not self.name: self.name = "_:%s" % hash(frozenset(self.triples))
return self.name
def canonize(nt):
triples = []
blanks = {}
l = 0
nt = nt.replace("/>", ">") # Owlready remove trailing /
for line in nt.split("\n"):
if not line: continue
l += 1
#print(l, line)
if line.startswith("#") or not line: continue
line = line[:-1].strip()
s,p,o = line.split(None, 2)
if o.endswith("^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#PlainLiteral>"): o = o.rsplit("^^", 1)[0]
if s.startswith("_"): s = blanks.get(s) or Blank()
if o.startswith("_"): o = blanks.get(o) or Blank()
if isinstance(s, Blank): s.add_triple(s,p,o)
if isinstance(o, Blank): o.add_triple(s,p,o)
triples.append((s,p,o, l))
if p in symmetric_predicates:
if isinstance(s, Blank): s.add_triple(o,p,s)
if isinstance(o, Blank): o.add_triple(o,p,s)
triples.append((o,p,s, 0))
triples2 = []
for s,p,o, l in triples:
if isinstance(s, Blank): s = s.get_name()
if isinstance(o, Blank): o = o.get_name()
triples2.append((s,p,o, l))
#triples2.sort()
return triples2
def diff(nt1, nt2):
triples1 = canonize(nt1)
triples2 = canonize(nt2)
triples1_set = set((s,p,o) for (s,p,o, l) in triples1)
triples2_set = set((s,p,o) for (s,p,o, l) in triples2)
removed = []
added = []
for s,p,o, l in triples1:
if (s,p,o) in useless_triples: continue
if not (s,p,o) in triples2_set:
removed.append((s,p,o, l))
for s,p,o, l in triples2:
if (s,p,o) in useless_triples: continue
if not (s,p,o) in triples1_set:
added.append((s,p,o, l))
return removed, added
if __name__ == "__main__":
if "--short" in sys.argv:
sys.argv.remove("--short")
short = True
else:
short = False
if len(sys.argv) == 2:
nt = open(sys.argv[1]).read()
triples = canonize(nt)
if short: triples = shortify(triples)
for s,p,o in sorted(triples):
print(s,p,o, ".")
elif len(sys.argv) == 3:
nt1 = open(sys.argv[1]).read()
nt2 = open(sys.argv[2]).read()
removed, added = diff(nt1, nt2)
if short:
removed = shortify(removed)
added = shortify(added)
for s,p,o, l in removed:
if l: print("-", s, p, o, ". # line", l)
print()
for s,p,o, l in added:
if l: print("+", s, p, o, ". # line", l)