import_plwn.py
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import sys, os, codecs
from django.core.management.base import BaseCommand
from lxml import etree
from xml.sax import saxutils, handler, make_parser
from wordnet.models import LexicalUnit, LexicalUnitLink, SynsetLink, Relation, Synset
from settings import PROJECT_PATH
BULK = 250
class PlWNHandler(handler.ContentHandler):
def __init__(self, out=sys.stdout):
handler.ContentHandler.__init__(self)
self._out = out
self._lexical_units = {}
self._reflexive_lexical_units = {}
self._mutual_lexical_units = {}
self._synsets = {}
self._root_synsets_ids = set()
self._root_synsets = []
self._defined_synset = -1
self._unit = False
self._content = ''
self._other_synset_relations = set()
self._lexical_relations = set()
self._synsets_to_base = []
self._lexical_units_to_base = []
self._lexical_units_objs = {}
self._synset_links_to_base = []
self._lus_links_to_base = []
def startElement(self, name, attrs):
if name == 'lexical-unit':
# if 'pwn' not in attrs['pos']:
luid = int(attrs['id'])
lubase = attrs['name']
lusense = int(attrs['variant'])
pos = attrs['pos']
desc = attrs['desc']
self._lexical_units[luid] = (lubase, lusense, pos, desc)
elif name == 'synset':
sid = int(attrs['id'])
self._defined_synset = sid
s = Synset(id=sid)
self._synsets_to_base.append(s)
self._synsets[sid] = s
elif name == 'unit-id':
self._unit = True
elif name == 'synsetrelations':
if attrs['valid'] == 'true':
parent = int(attrs['parent'])
child = int(attrs['child'])
relation = Relation.objects.get(id=int(attrs['relation']))
if child in self._synsets and parent in self._synsets:
p = self._synsets[parent]
c = self._synsets[child]
l = SynsetLink(parent=p, child=c, relation=relation)
self._synset_links_to_base.append(l)
elif name == 'lexicalrelations':
if attrs['valid'] == 'true':
parent = int(attrs['parent'])
child = int(attrs['child'])
relation = Relation.objects.get(id=int(attrs['relation']))
if child in self._lexical_units_objs and parent in self._lexical_units_objs:
p = self._lexical_units_objs[parent]
c = self._lexical_units_objs[child]
l = LexicalUnitLink(parent=p, child=c, relation=relation)
self._lus_links_to_base.append(l)
else:
print (self._lexical_units[child], '-->', self._lexical_units[parent])
def endElement(self, name):
if name == 'synset':
self._defined_synset = -1
elif name == 'unit-id':
luid = int(self._content)
if luid in self._lexical_units:
s = self._synsets[self._defined_synset]
lubase, lusense, pos, desc = self._lexical_units[luid]
lu = LexicalUnit(luid=luid, base=lubase, sense=lusense, pos=pos, synset=s, definition=desc)
self._lexical_units_to_base.append(lu)
self._lexical_units_objs[luid] = lu
self._unit = False
self._content = ''
def characters(self, content):
if self._unit and self._defined_synset >= 0 and content.strip():
self._content += content
def endDocument(self):
pass
def import_relations(plwn_path):
print ('Importing relation types')
for _, element in etree.iterparse(plwn_path):
if element.tag == 'relationtypes':
Relation.objects.create(id=int(element.attrib['id']),
name=element.attrib['name'])
elif element.getparent() is not None:
element.getparent().remove(element)
print ('Adding parent relations')
for _, element in etree.iterparse(plwn_path):
if element.tag == 'relationtypes' and 'parent' in element.attrib:
child = Relation.objects.get(id=int(element.attrib['id']))
parent = Relation.objects.get(id=int(element.attrib['parent']))
child.parent = parent
child.save()
elif element.getparent() is not None:
element.getparent().remove(element)
# ==========================================================#
class Command(BaseCommand):
args = 'none'
help = ''
def handle(self, **options):
import_plWordnet()
def import_plWordnet():
f = os.path.join(PROJECT_PATH, 'data', 'plwordnet-3.0.xml')
import_relations(f)
parser = make_parser()
parser.setContentHandler(PlWNHandler())
print ("Parsing Wordnet...")
parser.parse(f)
print ("...DONE")
print ("")
print ("Storing synsets...")
synsets = parser.getContentHandler()._synsets_to_base
max_len = len(synsets)
i = 0
while i * BULK < max_len:
store = synsets[i * BULK:min((i + 1) * BULK, max_len)]
Synset.objects.bulk_create(store)
i += 1
print (str(i * BULK) + "...")
print ("...DONE")
print ("")
print ("Storing lexical units...")
lexical_units = parser.getContentHandler()._lexical_units_to_base
max_len = len(lexical_units)
i = 0
while i * BULK < max_len:
store = lexical_units[i * BULK:min((i + 1) * BULK, max_len)]
LexicalUnit.objects.bulk_create(store)
i += 1
print (str(i * BULK) + "...")
print ("...DONE")
print ("")
print ("Storing synset links...")
synset_links = parser.getContentHandler()._synset_links_to_base
max_len = len(synset_links)
i = 0
while i * BULK < max_len:
store = synset_links[i * BULK:min((i + 1) * BULK, max_len)]
SynsetLink.objects.bulk_create(store)
i += 1
print (str(i * BULK) + "...")
print ("...DONE")
print ("")
print ("Storing lexical unit links...")
lus_links = parser.getContentHandler()._lus_links_to_base
max_len = len(lus_links)
i = 0
while i * BULK < max_len:
store = lus_links[i * BULK:min((i + 1) * BULK, max_len)]
LexicalUnitLink.objects.bulk_create(store)
i += 1
print (str(i * BULK) + "...")
print ("...DONE")