def parseN3Logic(self,src):
store=N3RuleStore(additionalBuiltins=self.ruleStore.filters)
Graph(store).parse(src,format='n3')
store._finalize()
assert len(store.rules),"There are no rules passed in!"
from FuXi.Horn.HornRules import Ruleset
for rule in Ruleset(n3Rules=store.rules,
nsMapping=self.nsMap):
self.buildNetwork(iter(rule.formula.body),
iter(rule.formula.head),
rule)
self.rules.add(rule)
self.alphaNodes = [node for node in self.nodes.values() if isinstance(node,AlphaNode)]
self.alphaBuiltInNodes = [node for node in self.nodes.values() if isinstance(node,BuiltInAlphaNode)]
def NormalizeLPDb(ruleGraph,fact_db):
"""
For performance reasons, it 1s good to decompose the database into a set of
pure base predicates (which can then be stored using a standard DBMS)
and a set of pure derived predicates Fortunately, such a decomposition 1s
always possible, because every database can be rewritten ...as
database containing only base and derived predicates.
>>> ruleStore,ruleGraph=SetupRuleStore()
>>> g=ruleGraph.parse(StringIO(PARTITION_LP_DB_PREDICATES),format='n3')
>>> ruleStore._finalize()
>>> len(ruleStore.rules)
1
>>> factGraph=Graph().parse(StringIO(PARTITION_LP_DB_PREDICATES),format='n3')
>>> rs=Ruleset(n3Rules=ruleStore.rules,nsMapping=ruleStore.nsMgr)
>>> for i in rs: print i
Forall ?Y ?X ?Z ( ex:grandfather(?X ?Y) :- And( ex:father(?X ?Z) ex:parent(?X ?Y) ) )
>>> len(factGraph)
4
>>> print [p for p,iter in iter_non_base_non_derived_preds(rs,factGraph)]
[rdflib.URIRef('http://doi.acm.org/10.1145/16856.16859#grandfather')]
"""
candidatePreds=False
rs=Ruleset(n3Rules=ruleGraph.store.rules,
nsMapping=ruleStore.nsMgr)
toAdd=[]
for pred,replFacts in iter_non_base_non_derived_preds(rs,fact_db):
replPred=URIRef(pred+'_ext')
for s,p,o in replFacts:
fact_db.remove((s,p,o))
toAdd.append((s,replPred,o))
head=Uniterm(pred,pred.arg)
body=Uniterm(replPred,pred.arg)
newRule=Rule(Clause(body,head),
[term for term in pred.arg if isinstance(term,Variable)])
rs.append(newRule)
return rs
def main():
from optparse import OptionParser
op = OptionParser(
'usage: %prog [options] factFile1 factFile2 ... factFileN')
op.add_option(
'--why',
default=None,
help='Specifies the goals to solve for using the non-naive methods' +
'see --method')
op.add_option(
'--closure',
action='store_true',
default=False,
help='Whether or not to serialize the inferred triples' +
' along with the original triples. Otherwise ' +
'(the default behavior), serialize only the inferred triples')
op.add_option(
'--imports',
action='store_true',
default=False,
help='Whether or not to follow owl:imports in the fact graph')
op.add_option(
'--output',
default='n3',
metavar='RDF_FORMAT',
choices=[
'xml', 'TriX', 'n3', 'pml', 'proof-graph', 'nt', 'rif', 'rif-xml',
'conflict', 'man-owl'
],
help=
"Serialize the inferred triples and/or original RDF triples to STDOUT "
+
"using the specified RDF syntax ('xml', 'pretty-xml', 'nt', 'turtle', "
+
"or 'n3') or to print a summary of the conflict set (from the RETE " +
"network) if the value of this option is 'conflict'. If the the " +
" value is 'rif' or 'rif-xml', Then the rules used for inference " +
"will be serialized as RIF. If the value is 'pml' and --why is used, "
+ " then the PML RDF statements are serialized. If output is " +
"'proof-graph then a graphviz .dot file of the proof graph is printed. "
+
"Finally if the value is 'man-owl', then the RDF facts are assumed " +
"to be OWL/RDF and serialized via Manchester OWL syntax. The default is %default"
)
op.add_option(
'--class',
dest='classes',
action='append',
default=[],
metavar='QNAME',
help='Used with --output=man-owl to determine which ' +
'classes within the entire OWL/RDF are targetted for serialization' +
'. Can be used more than once')
op.add_option(
'--hybrid',
action='store_true',
default=False,
help='Used with with --method=bfp to determine whether or not to ' +
'peek into the fact graph to identify predicates that are both ' +
'derived and base. This is expensive for large fact graphs' +
'and is explicitely not used against SPARQL endpoints')
op.add_option(
'--property',
action='append',
dest='properties',
default=[],
metavar='QNAME',
help='Used with --output=man-owl or --extract to determine which ' +
'properties are serialized / extracted. Can be used more than once')
op.add_option(
'--normalize',
action='store_true',
default=False,
help=
"Used with --output=man-owl to attempt to determine if the ontology is 'normalized' [Rector, A. 2003]"
+ "The default is %default")
op.add_option(
'--ddlGraph',
default=False,
help=
"The location of a N3 Data Description document describing the IDB predicates"
)
op.add_option(
'--input-format',
default='xml',
dest='inputFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help=
"The format of the RDF document(s) which serve as the initial facts " +
" for the RETE network. One of 'xml', 'n3', 'trix', 'nt', " +
"or 'rdfa'. The default is %default")
op.add_option(
'--safety',
default='none',
metavar='RULE_SAFETY',
choices=['loose', 'strict', 'none'],
help="Determines how to handle RIF Core safety. A value of 'loose' " +
" means that unsafe rules will be ignored. A value of 'strict' " +
" will cause a syntax exception upon any unsafe rule. A value of " +
"'none' (the default) does nothing")
op.add_option(
'--pDSemantics',
action='store_true',
default=False,
help=
'Used with --dlp to add pD semantics ruleset for semantics not covered '
+ 'by DLP but can be expressed in definite Datalog Logic Programming' +
' The default is %default')
op.add_option(
'--stdin',
action='store_true',
default=False,
help=
'Parse STDIN as an RDF graph to contribute to the initial facts. The default is %default '
)
op.add_option(
'--ns',
action='append',
default=[],
metavar="PREFIX=URI",
help='Register a namespace binding (QName prefix to a base URI). This '
+ 'can be used more than once')
op.add_option(
'--rules',
default=[],
action='append',
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as rulesets for the RETE network'
+ '. Can be specified more than once')
op.add_option('-d',
'--debug',
action='store_true',
default=True,
help='Include debugging output')
op.add_option(
'--strictness',
default='defaultBase',
metavar='DDL_STRICTNESS',
choices=['loose', 'defaultBase', 'defaultDerived', 'harsh'],
help=
'Used with --why to specify whether to: *not* check if predicates are '
+
' both derived and base (loose), if they are, mark as derived (defaultDerived) '
+
'or as base (defaultBase) predicates, else raise an exception (harsh)')
op.add_option(
'--method',
default='naive',
metavar='reasoning algorithm',
choices=['gms', 'bfp', 'naive'],
help='Used with --why to specify how to evaluate answers for query. '
+ 'One of: gms, sld, bfp, naive')
op.add_option(
'--firstAnswer',
default=False,
action='store_true',
help=
'Used with --why to determine whether to fetch all answers or just ' +
'the first')
op.add_option(
'--edb',
default=[],
action='append',
metavar='EXTENSIONAL_DB_PREDICATE_QNAME',
help=
'Used with --why/--strictness=defaultDerived to specify which clashing '
+ 'predicate will be designated as a base predicate')
op.add_option(
'--idb',
default=[],
action='append',
metavar='INTENSIONAL_DB_PREDICATE_QNAME',
help=
'Used with --why/--strictness=defaultBase to specify which clashing ' +
'predicate will be designated as a derived predicate')
op.add_option(
'--hybridPredicate',
default=[],
action='append',
metavar='PREDICATE_QNAME',
help=
'Used with --why to explicitely specify a hybrid predicate (in both ' +
' IDB and EDB) ')
op.add_option(
'--noMagic',
default=[],
action='append',
metavar='DB_PREDICATE_QNAME',
help='Used with --why to specify that the predicate shouldnt have its '
+ 'magic sets calculated')
op.add_option(
'--filter',
action='append',
default=[],
metavar='PATH_OR_URI',
help=
'The Notation 3 documents to use as a filter (entailments do not particpate in network)'
)
op.add_option(
'--ruleFacts',
action='store_true',
default=False,
help="Determines whether or not to attempt to parse initial facts from "
+ "the rule graph. The default is %default")
op.add_option(
'--builtins',
default=False,
metavar='PATH_TO_PYTHON_MODULE',
help="The path to a python module with function definitions (and a " +
"dicitonary called ADDITIONAL_FILTERS) to use for builtins implementations"
)
op.add_option(
'--dlp',
action='store_true',
default=False,
help=
'Use Description Logic Programming (DLP) to extract rules from OWL/RDF. The default is %default'
)
op.add_option(
'--sparqlEndpoint',
action='store_true',
default=False,
help=
'Indicates that the sole argument is the URI of a SPARQL endpoint to query'
)
op.add_option(
'--ontology',
action='append',
default=[],
metavar='PATH_OR_URI',
help=
'The path to an OWL RDF/XML graph to use DLP to extract rules from ' +
'(other wise, fact graph(s) are used) ')
op.add_option(
'--ontologyFormat',
default='xml',
dest='ontologyFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help=
"The format of the OWL RDF/XML graph specified via --ontology. The default is %default"
)
op.add_option(
'--builtinTemplates',
default=None,
metavar='N3_DOC_PATH_OR_URI',
help=
'The path to an N3 document associating SPARQL FILTER templates to ' +
'rule builtins')
op.add_option('--negation',
action='store_true',
default=False,
help='Extract negative rules?')
op.add_option(
'--normalForm',
action='store_true',
default=False,
help='Whether or not to reduce DL axioms & LP rules to a normal form')
(options, facts) = op.parse_args()
nsBinds = {'iw': 'http://inferenceweb.stanford.edu/2004/07/iw.owl#'}
for nsBind in options.ns:
pref, nsUri = nsBind.split('=')
nsBinds[pref] = nsUri
namespace_manager = NamespaceManager(Graph())
if options.sparqlEndpoint:
factGraph = Graph(plugin.get('SPARQLStore', Store)(facts[0]))
options.hybrid = False
else:
factGraph = Graph()
ruleSet = Ruleset()
for fileN in options.rules:
if options.ruleFacts and not options.sparqlEndpoint:
factGraph.parse(fileN, format='n3')
print("Parsing RDF facts from ", fileN)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rs = HornFromN3(fileN,
additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
else:
rs = HornFromN3(fileN)
nsBinds.update(rs.nsMapping)
ruleSet.formulae.extend(rs)
#ruleGraph.parse(fileN, format='n3')
ruleSet.nsMapping = nsBinds
for prefix, uri in list(nsBinds.items()):
namespace_manager.bind(prefix, uri, override=False)
closureDeltaGraph = Graph()
closureDeltaGraph.namespace_manager = namespace_manager
factGraph.namespace_manager = namespace_manager
if not options.sparqlEndpoint:
for fileN in facts:
factGraph.parse(fileN, format=options.inputFormat)
if options.imports:
for owlImport in factGraph.objects(predicate=OWL_NS.imports):
factGraph.parse(owlImport)
print("Parsed Semantic Web Graph.. ", owlImport)
if not options.sparqlEndpoint and facts:
for pref, uri in factGraph.namespaces():
nsBinds[pref] = uri
if options.stdin:
assert not options.sparqlEndpoint, "Cannot use --stdin with --sparqlEndpoint"
factGraph.parse(sys.stdin, format=options.inputFormat)
#Normalize namespace mappings
#prune redundant, rdflib-allocated namespace prefix mappings
newNsMgr = NamespaceManager(factGraph)
from FuXi.Rete.Util import CollapseDictionary
for k, v in list(
CollapseDictionary(
dict([(k, v) for k, v in factGraph.namespaces()])).items()):
newNsMgr.bind(k, v)
factGraph.namespace_manager = newNsMgr
if options.normalForm:
NormalFormReduction(factGraph)
if not options.sparqlEndpoint:
workingMemory = generateTokenSet(factGraph)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rule_store, rule_graph, network = SetupRuleStore(
makeNetwork=True, additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
else:
rule_store, rule_graph, network = SetupRuleStore(makeNetwork=True)
network.inferredFacts = closureDeltaGraph
network.nsMap = nsBinds
if options.dlp:
from FuXi.DLP.DLNormalization import NormalFormReduction
if options.ontology:
ontGraph = Graph()
for fileN in options.ontology:
ontGraph.parse(fileN, format=options.ontologyFormat)
for prefix, uri in ontGraph.namespaces():
nsBinds[prefix] = uri
namespace_manager.bind(prefix, uri, override=False)
if options.sparqlEndpoint:
factGraph.store.bind(prefix, uri)
else:
ontGraph = factGraph
NormalFormReduction(ontGraph)
dlp = network.setupDescriptionLogicProgramming(
ontGraph,
addPDSemantics=options.pDSemantics,
constructNetwork=False,
ignoreNegativeStratus=options.negation,
safety=safetyNameMap[options.safety])
ruleSet.formulae.extend(dlp)
if options.output == 'rif' and not options.why:
for rule in ruleSet:
print(rule)
if options.negation:
for nRule in network.negRules:
print(nRule)
elif options.output == 'man-owl':
cGraph = network.closureGraph(factGraph, readOnly=False)
cGraph.namespace_manager = namespace_manager
Individual.factoryGraph = cGraph
if options.classes:
mapping = dict(namespace_manager.namespaces())
for c in options.classes:
pref, uri = c.split(':')
print(Class(URIRef(mapping[pref] + uri)).__repr__(True))
elif options.properties:
mapping = dict(namespace_manager.namespaces())
for p in options.properties:
pref, uri = p.split(':')
print(Property(URIRef(mapping[pref] + uri)))
else:
for p in AllProperties(cGraph):
print(p.identifier, first(p.label))
print(repr(p))
for c in AllClasses(cGraph):
if options.normalize:
if c.isPrimitive():
primAnc = [
sc for sc in c.subClassOf if sc.isPrimitive()
]
if len(primAnc) > 1:
warnings.warn(
"Branches of primitive skeleton taxonomy" +
" should form trees: %s has %s primitive parents: %s"
% (c.qname, len(primAnc), primAnc),
UserWarning, 1)
children = [desc for desc in c.subSumpteeIds()]
for child in children:
for otherChild in [
o for o in children if o is not child
]:
if not otherChild in [
c.identifier
for c in Class(child).disjointWith
]: # and \
warnings.warn(
"Primitive children (of %s) " % (c.qname) + \
"must be mutually disjoint: %s and %s" % (
Class(child).qname, Class(otherChild).qname), UserWarning, 1)
# if not isinstance(c.identifier, BNode):
print(c.__repr__(True))
if not options.why:
# Naive construction of graph
for rule in ruleSet:
network.buildNetworkFromClause(rule)
magicSeeds = []
if options.why:
builtinTemplateGraph = Graph()
if options.builtinTemplates:
builtinTemplateGraph = Graph().parse(options.builtinTemplates,
format='n3')
factGraph.templateMap = \
dict([(pred, template)
for pred, _ignore, template in
builtinTemplateGraph.triples(
(None,
TEMPLATES.filterTemplate,
None))])
goals = []
query = ParseSPARQL(options.why)
network.nsMap['pml'] = PML
network.nsMap['gmp'] = GMP_NS
network.nsMap['owl'] = OWL_NS
nsBinds.update(network.nsMap)
network.nsMap = nsBinds
if not query.prologue:
query.prologue = Prologue(None, [])
query.prologue.prefixBindings.update(nsBinds)
else:
for prefix, nsInst in list(nsBinds.items()):
if prefix not in query.prologue.prefixBindings:
query.prologue.prefixBindings[prefix] = nsInst
print("query.prologue", query.prologue)
print("query.query", query.query)
print("query.query.whereClause", query.query.whereClause)
print("query.query.whereClause.parsedGraphPattern",
query.query.whereClause.parsedGraphPattern)
goals.extend([(s, p, o) for s, p, o, c in ReduceGraphPattern(
query.query.whereClause.parsedGraphPattern,
query.prologue).patterns])
# dPreds=[]# p for s, p, o in goals ]
# print("goals", goals)
magicRuleNo = 0
bottomUpDerivedPreds = []
# topDownDerivedPreds = []
defaultBasePreds = []
defaultDerivedPreds = set()
hybridPredicates = []
mapping = dict(newNsMgr.namespaces())
for edb in options.edb:
pref, uri = edb.split(':')
defaultBasePreds.append(URIRef(mapping[pref] + uri))
noMagic = []
for pred in options.noMagic:
pref, uri = pred.split(':')
noMagic.append(URIRef(mapping[pref] + uri))
if options.ddlGraph:
ddlGraph = Graph().parse(options.ddlGraph, format='n3')
# @TODO: should also get hybrid predicates from DDL graph
defaultDerivedPreds = IdentifyDerivedPredicates(
ddlGraph, Graph(), ruleSet)
else:
for idb in options.idb:
pref, uri = idb.split(':')
defaultDerivedPreds.add(URIRef(mapping[pref] + uri))
defaultDerivedPreds.update(
set([p == RDF.type and o or p for s, p, o in goals]))
for hybrid in options.hybridPredicate:
pref, uri = hybrid.split(':')
hybridPredicates.append(URIRef(mapping[pref] + uri))
if options.method == 'gms':
for goal in goals:
goalSeed = AdornLiteral(goal).makeMagicPred()
print("Magic seed fact (used in bottom-up evaluation)",
goalSeed)
magicSeeds.append(goalSeed.toRDFTuple())
if noMagic:
print("Predicates whose magic sets will not be calculated")
for p in noMagic:
print("\t", factGraph.qname(p))
for rule in MagicSetTransformation(
factGraph,
ruleSet,
goals,
derivedPreds=bottomUpDerivedPreds,
strictCheck=nameMap[options.strictness],
defaultPredicates=(defaultBasePreds, defaultDerivedPreds),
noMagic=noMagic):
magicRuleNo += 1
network.buildNetworkFromClause(rule)
if len(list(ruleSet)):
print("reduction in size of program: %s (%s -> %s clauses)" %
(100 -
(float(magicRuleNo) / float(len(list(ruleSet)))) * 100,
len(list(ruleSet)), magicRuleNo))
start = time.time()
network.feedFactsToAdd(generateTokenSet(magicSeeds))
if not [
rule for rule in factGraph.adornedProgram if len(rule.sip)
]:
warnings.warn(
"Using GMS sideways information strategy with no " +
"information to pass from query. Falling back to " +
"naive method over given facts and rules")
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
print("Time to calculate closure on working memory: ", sTimeStr)
if options.output == 'rif':
print("Rules used for bottom-up evaluation")
if network.rules:
for clause in network.rules:
print(clause)
else:
for clause in factGraph.adornedProgram:
print(clause)
if options.output == 'conflict':
network.reportConflictSet()
elif options.method == 'bfp':
topDownDPreds = defaultDerivedPreds
if options.builtinTemplates:
builtinTemplateGraph = Graph().parse(options.builtinTemplates,
format='n3')
builtinDict = dict([
(pred, template) for pred, _ignore, template in
builtinTemplateGraph.triples((None,
TEMPLATES.filterTemplate,
None))
])
else:
builtinDict = None
topDownStore = TopDownSPARQLEntailingStore(
factGraph.store,
factGraph,
idb=ruleSet,
DEBUG=options.debug,
derivedPredicates=topDownDPreds,
templateMap=builtinDict,
nsBindings=network.nsMap,
identifyHybridPredicates=options.hybrid
if options.method == 'bfp' else False,
hybridPredicates=hybridPredicates)
targetGraph = Graph(topDownStore)
for pref, nsUri in list(network.nsMap.items()):
targetGraph.bind(pref, nsUri)
start = time.time()
# queryLiteral = EDBQuery([BuildUnitermFromTuple(goal) for goal in goals],
# targetGraph)
# query = queryLiteral.asSPARQL()
# print("Goal to solve ", query)
sTime = time.time() - start
result = targetGraph.query(options.why, initNs=network.nsMap)
if result.askAnswer:
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
print("Time to reach answer ground goal answer of %s: %s" %
(result.askAnswer[0], sTimeStr))
else:
for rt in result:
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
if options.firstAnswer:
break
print(
"Time to reach answer %s via top-down SPARQL sip strategy: %s"
% (rt, sTimeStr))
if options.output == 'conflict' and options.method == 'bfp':
for _network, _goal in topDownStore.queryNetworks:
print(network, _goal)
_network.reportConflictSet(options.debug)
for query in topDownStore.edbQueries:
print(query.asSPARQL())
elif options.method == 'naive':
start = time.time()
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
print("Time to calculate closure on working memory: ", sTimeStr)
print(network)
if options.output == 'conflict':
network.reportConflictSet()
for fileN in options.filter:
for rule in HornFromN3(fileN):
network.buildFilterNetworkFromClause(rule)
if options.negation and network.negRules and options.method in [
'both', 'bottomUp'
]:
now = time.time()
rt = network.calculateStratifiedModel(factGraph)
print(
"Time to calculate stratified, stable model (inferred %s facts): %s"
% (rt, time.time() - now))
if options.filter:
print("Applying filter to entailed facts")
network.inferredFacts = network.filteredFacts
if options.closure and options.output in RDF_SERIALIZATION_FORMATS:
cGraph = network.closureGraph(factGraph)
cGraph.namespace_manager = namespace_manager
print(
cGraph.serialize(destination=None,
format=options.output,
base=None))
elif options.output and options.output in RDF_SERIALIZATION_FORMATS:
print(
network.inferredFacts.serialize(destination=None,
format=options.output,
base=None))
def main():
from optparse import OptionParser
op = OptionParser(
'usage: %prog [options] factFile1 factFile2 ... factFileN')
op.add_option('--why',
default=None,
help='Specifies the goals to solve for using the non-niave methods' +
'see --method')
op.add_option('--closure',
action='store_true',
default=False,
help='Whether or not to serialize the inferred triples' +
' along with the original triples. Otherwise ' +
'(the default behavior), serialize only the inferred triples')
op.add_option('--imports',
action='store_true',
default=False,
help='Whether or not to follow owl:imports in the fact graph')
op.add_option('--output',
default='n3',
metavar='RDF_FORMAT',
choices=['xml',
'TriX',
'n3',
'pml',
'proof-graph',
'nt',
'rif',
'rif-xml',
'conflict',
'man-owl'],
help="Serialize the inferred triples and/or original RDF triples to STDOUT "+
"using the specified RDF syntax ('xml','pretty-xml','nt','turtle', "+
"or 'n3') or to print a summary of the conflict set (from the RETE "+
"network) if the value of this option is 'conflict'. If the the "+
" value is 'rif' or 'rif-xml', Then the rules used for inference "+
"will be serialized as RIF. If the value is 'pml' and --why is used, "+
" then the PML RDF statements are serialized. If output is "+
"'proof-graph then a graphviz .dot file of the proof graph is printed. "+
"Finally if the value is 'man-owl', then the RDF facts are assumed "+
"to be OWL/RDF and serialized via Manchester OWL syntax. The default is %default")
op.add_option('--class',
dest='classes',
action='append',
default=[],
metavar='QNAME',
help='Used with --output=man-owl to determine which '+
'classes within the entire OWL/RDF are targetted for serialization'+
'. Can be used more than once')
op.add_option('--hybrid',
action='store_true',
default=False,
help='Used with with --method=bfp to determine whether or not to '+
'peek into the fact graph to identify predicates that are both '+
'derived and base. This is expensive for large fact graphs'+
'and is explicitely not used against SPARQL endpoints')
op.add_option('--property',
action='append',
dest='properties',
default=[],
metavar='QNAME',
help='Used with --output=man-owl or --extract to determine which '+
'properties are serialized / extracted. Can be used more than once')
op.add_option('--normalize',
action='store_true',
default=False,
help="Used with --output=man-owl to attempt to determine if the ontology is 'normalized' [Rector, A. 2003]"+
"The default is %default")
op.add_option('--ddlGraph',
default=False,
help="The location of a N3 Data Description document describing the IDB predicates")
op.add_option('--input-format',
default='xml',
dest='inputFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help="The format of the RDF document(s) which serve as the initial facts "+
" for the RETE network. One of 'xml','n3','trix', 'nt', "+
"or 'rdfa'. The default is %default")
op.add_option('--safety',
default='none',
metavar='RULE_SAFETY',
choices=['loose', 'strict', 'none'],
help="Determines how to handle RIF Core safety. A value of 'loose' "+
" means that unsafe rules will be ignored. A value of 'strict' "+
" will cause a syntax exception upon any unsafe rule. A value of "+
"'none' (the default) does nothing")
op.add_option('--pDSemantics',
action='store_true',
default=False,
help='Used with --dlp to add pD semantics ruleset for semantics not covered '+
'by DLP but can be expressed in definite Datalog Logic Programming'+
' The default is %default')
op.add_option('--stdin',
action='store_true',
default=False,
help='Parse STDIN as an RDF graph to contribute to the initial facts. The default is %default ')
op.add_option('--ns',
action='append',
default=[],
metavar="PREFIX=URI",
help='Register a namespace binding (QName prefix to a base URI). This '+
'can be used more than once')
op.add_option('--rules',
default=[],
action='append',
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as rulesets for the RETE network'+
'. Can be specified more than once')
op.add_option('-d', '--debug', action='store_true', default=False,
help='Include debugging output')
op.add_option('--strictness',
default='defaultBase',
metavar='DDL_STRICTNESS',
choices=['loose',
'defaultBase',
'defaultDerived',
'harsh'],
help='Used with --why to specify whether to: *not* check if predicates are '+
' both derived and base (loose), if they are, mark as derived (defaultDerived) '+
'or as base (defaultBase) predicates, else raise an exception (harsh)')
op.add_option('--method',
default='naive',
metavar='reasoning algorithm',
choices=['gms', 'bfp', 'naive'],
help='Used with --why to specify how to evaluate answers for query. '+
'One of: gms,bfp,naive')
op.add_option('--firstAnswer',
default=False,
action='store_true',
help='Used with --why to determine whether to fetch all answers or just '+
'the first')
op.add_option('--edb',
default=[],
action='append',
metavar='EXTENSIONAL_DB_PREDICATE_QNAME',
help='Used with --why/--strictness=defaultDerived to specify which clashing '+
'predicate will be designated as a base predicate')
op.add_option('--idb',
default=[],
action='append',
metavar='INTENSIONAL_DB_PREDICATE_QNAME',
help='Used with --why/--strictness=defaultBase to specify which clashing '+
'predicate will be designated as a derived predicate')
op.add_option('--hybridPredicate',
default=[],
action='append',
metavar='PREDICATE_QNAME',
help='Used with --why to explicitely specify a hybrid predicate (in both '+
' IDB and EDB) ')
op.add_option('--noMagic',
default=[],
action='append',
metavar='DB_PREDICATE_QNAME',
help='Used with --why to specify that the predicate shouldnt have its '+
'magic sets calculated')
op.add_option('--filter',
action='append',
default=[],
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as a filter (entailments do not particpate in network)')
op.add_option('--ruleFacts',
action='store_true',
default=False,
help="Determines whether or not to attempt to parse initial facts from "+
"the rule graph. The default is %default")
op.add_option('--builtins',
default=False,
metavar='PATH_TO_PYTHON_MODULE',
help="The path to a python module with function definitions (and a "+
"dicitonary called ADDITIONAL_FILTERS) to use for builtins implementations")
op.add_option('--dlp',
action='store_true',
default=False,
help='Use Description Logic Programming (DLP) to extract rules from OWL/RDF. The default is %default')
op.add_option('--sparqlEndpoint',
action='store_true',
default=False,
help='Indicates that the sole argument is the URI of a SPARQL endpoint to query')
op.add_option('--ontology',
action='append',
default=[],
metavar='PATH_OR_URI',
help='The path to an OWL RDF/XML graph to use DLP to extract rules from '+
'(other wise, fact graph(s) are used) ')
op.add_option('--ruleFormat',
default='n3',
dest='ruleFormat',
metavar='RULE_FORMAT',
choices=['n3', 'rif'],
help="The format of the rules to parse ('n3', 'rif'). The default is %default")
op.add_option('--ontologyFormat',
default='xml',
dest='ontologyFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help="The format of the OWL RDF/XML graph specified via --ontology. The default is %default")
op.add_option('--builtinTemplates',
default=None,
metavar='N3_DOC_PATH_OR_URI',
help='The path to an N3 document associating SPARQL FILTER templates to '+
'rule builtins')
op.add_option('--negation',
action='store_true',
default=False,
help='Extract negative rules?')
op.add_option('--normalForm',
action='store_true',
default=False,
help='Whether or not to reduce DL axioms & LP rules to a normal form')
(options, facts) = op.parse_args()
nsBinds = {'iw': 'http://inferenceweb.stanford.edu/2004/07/iw.owl#'}
for nsBind in options.ns:
pref, nsUri = nsBind.split('=')
nsBinds[pref]=nsUri
namespace_manager = NamespaceManager(Graph())
if options.sparqlEndpoint:
factGraph = Graph(plugin.get('SPARQL', Store)(facts[0]))
options.hybrid = False
else:
factGraph = Graph()
ruleSet = Ruleset()
for fileN in options.rules:
if options.ruleFacts and not options.sparqlEndpoint:
factGraph.parse(fileN, format='n3')
print("Parsing RDF facts from %s" % fileN)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rs = HornFromN3(fileN,
additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
nsBinds.update(rs.nsMapping)
elif options.ruleFormat == 'rif':
try:
from FuXi.Horn.RIFCore import RIFCoreParser
rif_parser = RIFCoreParser(location=fileN, debug=options.debug)
rs = rif_parser.getRuleset()
except ImportError:
raise Exception(
"Missing 3rd party libraries for RIF processing"
)
else:
rs = HornFromN3(fileN)
nsBinds.update(rs.nsMapping)
ruleSet.formulae.extend(rs)
#ruleGraph.parse(fileN,format='n3')
ruleSet.nsMapping = nsBinds
for prefix, uri in list(nsBinds.items()):
namespace_manager.bind(prefix, uri, override=False)
closureDeltaGraph = Graph()
closureDeltaGraph.namespace_manager = namespace_manager
factGraph.namespace_manager = namespace_manager
if not options.sparqlEndpoint:
for fileN in facts:
factGraph.parse(fileN, format=options.inputFormat)
if options.imports:
for owlImport in factGraph.objects(predicate=OWL_NS.imports):
factGraph.parse(owlImport)
print("Parsed Semantic Web Graph.. %s" % owlImport)
if not options.sparqlEndpoint and facts:
for pref, uri in factGraph.namespaces():
nsBinds[pref]=uri
if options.stdin:
assert not options.sparqlEndpoint, "Cannot use --stdin with --sparqlEndpoint"
factGraph.parse(sys.stdin, format=options.inputFormat)
#Normalize namespace mappings
#prune redundant, rdflib-allocated namespace prefix mappings
newNsMgr = NamespaceManager(factGraph)
from FuXi.Rete.Util import CollapseDictionary
for k, v in list(CollapseDictionary(dict([(k, v)
for k, v in factGraph.namespaces()])).items()):
newNsMgr.bind(k, v)
factGraph.namespace_manager = newNsMgr
if options.normalForm:
NormalFormReduction(factGraph)
if not options.sparqlEndpoint:
workingMemory = generateTokenSet(factGraph)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rule_store, rule_graph, network = SetupRuleStore(
makeNetwork=True,
additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
else:
rule_store, rule_graph, network = SetupRuleStore(makeNetwork=True)
network.inferredFacts = closureDeltaGraph
network.nsMap = nsBinds
if options.dlp:
from FuXi.DLP.DLNormalization import NormalFormReduction
if options.ontology:
ontGraph = Graph()
for fileN in options.ontology:
ontGraph.parse(fileN, format=options.ontologyFormat)
for prefix, uri in ontGraph.namespaces():
nsBinds[prefix] = uri
namespace_manager.bind(prefix, uri, override=False)
if options.sparqlEndpoint:
factGraph.store.bind(prefix, uri)
else:
ontGraph=factGraph
NormalFormReduction(ontGraph)
dlp=network.setupDescriptionLogicProgramming(
ontGraph,
addPDSemantics=options.pDSemantics,
constructNetwork=False,
ignoreNegativeStratus=options.negation,
safety=safetyNameMap[options.safety])
ruleSet.formulae.extend(dlp)
if options.output == 'rif' and not options.why:
for rule in ruleSet:
print(rule)
if options.negation:
for nRule in network.negRules:
print(nRule)
elif options.output == 'man-owl':
cGraph = network.closureGraph(factGraph, readOnly=False)
cGraph.namespace_manager = namespace_manager
Individual.factoryGraph = cGraph
if options.classes:
mapping = dict(namespace_manager.namespaces())
for c in options.classes:
pref, uri = c.split(':')
print(Class(URIRef(mapping[pref] + uri)).__repr__(True))
elif options.properties:
mapping = dict(namespace_manager.namespaces())
for p in options.properties:
pref, uri = p.split(':')
print(Property(URIRef(mapping[pref] + uri)))
else:
for p in AllProperties(cGraph):
print(p.identifier, first(p.label))
print(repr(p))
for c in AllClasses(cGraph):
if options.normalize:
if c.isPrimitive():
primAnc = [sc for sc in c.subClassOf if sc.isPrimitive()]
if len(primAnc) > 1:
warnings.warn("Branches of primitive skeleton taxonomy" +
" should form trees: %s has %s primitive parents: %s" % (
c.qname, len(primAnc), primAnc), UserWarning, 1)
children = [desc for desc in c.subSumpteeIds()]
for child in children:
for otherChild in [o for o in children if o is not child]:
if not otherChild in [c.identifier
for c in Class(child).disjointWith]: # and\
warnings.warn("Primitive children (of %s) " % (c.qname) +
"must be mutually disjoint: %s and %s" % (
Class(child).qname,
Class(otherChild).qname), UserWarning, 1)
# if not isinstance(c.identifier,BNode):
print(c.__repr__(True))
if not options.why:
#Naive construction of graph
for rule in ruleSet:
network.buildNetworkFromClause(rule)
magicSeeds=[]
if options.why:
builtinTemplateGraph = Graph()
if options.builtinTemplates:
builtinTemplateGraph = Graph().parse(options.builtinTemplates,
format='n3')
factGraph.templateMap = \
dict([(pred, template)
for pred, _ignore, template in
builtinTemplateGraph.triples(
(None,
TEMPLATES.filterTemplate,
None))])
goals = []
query = ParseSPARQL(options.why)
network.nsMap['pml'] = PML
network.nsMap['gmp'] = GMP_NS
network.nsMap['owl'] = OWL_NS
nsBinds.update(network.nsMap)
network.nsMap = nsBinds
if not query.prolog:
query.prolog = Prolog(None, [])
query.prolog.prefixBindings.update(nsBinds)
else:
for prefix, nsInst in list(nsBinds.items()):
if prefix not in query.prolog.prefixBindings:
query.prolog.prefixBindings[prefix] = nsInst
goals.extend([(s, p, o) for s, p, o, c in ReduceGraphPattern(
query.query.whereClause.parsedGraphPattern,
query.prolog).patterns])
# dPreds=[]# p for s,p,o in goals ]
magicRuleNo = 0
bottomUpDerivedPreds = []
# topDownDerivedPreds = []
defaultBasePreds = []
defaultDerivedPreds = set()
hybridPredicates = []
mapping = dict(newNsMgr.namespaces())
for edb in options.edb:
pref, uri = edb.split(':')
defaultBasePreds.append(URIRef(mapping[pref] + uri))
noMagic = []
for pred in options.noMagic:
pref, uri = pred.split(':')
noMagic.append(URIRef(mapping[pref] + uri))
if options.ddlGraph:
ddlGraph = Graph().parse(options.ddlGraph, format='n3')
# @TODO: should also get hybrid predicates from DDL graph
defaultDerivedPreds=IdentifyDerivedPredicates(
ddlGraph,
Graph(),
ruleSet)
else:
for idb in options.idb:
pref, uri = idb.split(':')
defaultDerivedPreds.add(URIRef(mapping[pref] + uri))
defaultDerivedPreds.update(
set([p == RDF.type and o or p for s, p, o in goals]))
for hybrid in options.hybridPredicate:
pref, uri = hybrid.split(':')
hybridPredicates.append(URIRef(mapping[pref]+uri))
if options.method == 'gms':
for goal in goals:
goalSeed=AdornLiteral(goal).makeMagicPred()
print("Magic seed fact (used in bottom-up evaluation) %s" % goalSeed)
magicSeeds.append(goalSeed.toRDFTuple())
if noMagic:
print("Predicates whose magic sets will not be calculated")
for p in noMagic:
print("\t%s" % factGraph.qname(p))
for rule in MagicSetTransformation(
factGraph,
ruleSet,
goals,
derivedPreds=bottomUpDerivedPreds,
strictCheck=nameMap[options.strictness],
defaultPredicates=(defaultBasePreds,
defaultDerivedPreds),
noMagic=noMagic):
magicRuleNo+=1
network.buildNetworkFromClause(rule)
if len(list(ruleSet)):
print("reduction in size of program: %s (%s -> %s clauses)" % (
100 - (float(magicRuleNo) /
float(len(list(ruleSet)))
) * 100,
len(list(ruleSet)),
magicRuleNo))
start = time.time()
network.feedFactsToAdd(generateTokenSet(magicSeeds))
if not [
rule for rule in factGraph.adornedProgram if len(rule.sip)]:
warnings.warn(
"Using GMS sideways information strategy with no "+
"information to pass from query. Falling back to "+
"naive method over given facts and rules")
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds"%sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds"%sTime
print("Time to calculate closure on working memory: %s" % sTimeStr)
if options.output == 'rif':
print("Rules used for bottom-up evaluation")
if network.rules:
for clause in network.rules:
print(clause)
else:
for clause in factGraph.adornedProgram:
print(clause)
if options.output == 'conflict':
network.reportConflictSet()
elif options.method == 'bfp':
topDownDPreds = defaultDerivedPreds
if options.builtinTemplates:
builtinTemplateGraph = Graph().parse(options.builtinTemplates,
format='n3')
builtinDict = dict([(pred, template)
for pred, _ignore, template in
builtinTemplateGraph.triples(
(None,
TEMPLATES.filterTemplate,
None))])
else:
builtinDict = None
topDownStore=TopDownSPARQLEntailingStore(
factGraph.store,
factGraph,
idb=ruleSet,
DEBUG=options.debug,
derivedPredicates=topDownDPreds,
templateMap=builtinDict,
nsBindings=network.nsMap,
identifyHybridPredicates=options.hybrid \
if options.method == 'bfp' else False,
hybridPredicates=hybridPredicates)
targetGraph = Graph(topDownStore)
for pref, nsUri in list(network.nsMap.items()):
targetGraph.bind(pref, nsUri)
start = time.time()
# queryLiteral = EDBQuery([BuildUnitermFromTuple(goal)
# for goal in goals],
# targetGraph)
# query = queryLiteral.asSPARQL()
# print >>sys.stderr, "Goal to solve ", query
sTime = time.time() - start
result = targetGraph.query(options.why, initNs=network.nsMap)
if result.askAnswer:
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds"%sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds"%sTime
print("Time to reach answer ground goal answer of %s: %s" % (
result.askAnswer[0], sTimeStr))
else:
for rt in result:
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
if options.firstAnswer:
break
print(
"Time to reach answer %s via top-down SPARQL sip strategy: %s" % (
rt, sTimeStr))
if options.output == 'conflict' and options.method == 'bfp':
for _network, _goal in topDownStore.queryNetworks:
print(_network, _goal)
_network.reportConflictSet(options.debug)
for query in topDownStore.edbQueries:
print(query.asSPARQL())
elif options.method == 'naive':
start = time.time()
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds"%sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds"%sTime
print("Time to calculate closure on working memory: %s" % sTimeStr)
print(network)
if options.output == 'conflict':
network.reportConflictSet()
for fileN in options.filter:
for rule in HornFromN3(fileN):
network.buildFilterNetworkFromClause(rule)
if options.negation and network.negRules and options.method in ['both',
'bottomUp']:
now=time.time()
rt=network.calculateStratifiedModel(factGraph)
print("Time to calculate stratified, stable model (inferred %s facts): %s" % (
rt,
time.time()-now))
if options.filter:
print("Applying filter to entailed facts")
network.inferredFacts = network.filteredFacts
if options.closure \
and options.output in RDF_SERIALIZATION_FORMATS:
cGraph = network.closureGraph(factGraph)
cGraph.namespace_manager = namespace_manager
print(cGraph.serialize(destination=None,
format=options.output,
base=None))
elif options.output and options.output in RDF_SERIALIZATION_FORMATS:
print(network.inferredFacts.serialize(destination=None,
format=options.output,
base=None))
def __init__(self, ruleStore, name=None,
initialWorkingMemory=None,
inferredTarget=None,
nsMap={},
graphVizOutFile=None,
dontFinalize=False,
goal=None):
self.leanCheck = {}
self.goal = goal
self.nsMap = nsMap
self.name = name and name or BNode()
self.nodes = {}
self.alphaPatternHash = {}
self.ruleSet = set()
for alphaPattern in xcombine(('1', '0'), ('1', '0'), ('1', '0')):
self.alphaPatternHash[tuple(alphaPattern)] = {}
if inferredTarget is None:
self.inferredFacts = Graph()
namespace_manager = NamespaceManager(self.inferredFacts)
for k, v in list(nsMap.items()):
namespace_manager.bind(k, v)
self.inferredFacts.namespace_manager = namespace_manager
else:
self.inferredFacts = inferredTarget
self.workingMemory = initialWorkingMemory and initialWorkingMemory or set()
self.proofTracers = {}
self.terminalNodes = set()
self.instantiations = {}
start = time.time()
self.ruleStore = ruleStore
self.justifications = {}
self.dischargedBindings = {}
if not dontFinalize:
self.ruleStore._finalize()
self.filteredFacts = Graph()
# 'Universal truths' for a rule set are rules where the LHS is empty.
# Rather than automatically adding them to the working set, alpha nodes are 'notified'
# of them, so they can be checked for while performing inter element
# tests.
self.universalTruths = []
from FuXi.Horn.HornRules import Ruleset
self.rules = set()
self.negRules = set()
for rule in Ruleset(n3Rules=self.ruleStore.rules, nsMapping=self.nsMap):
import warnings
warnings.warn(
"Rules in a network should be built *after* construction via " +
" self.buildNetworkClause(HornFromN3(n3graph)) for instance",
DeprecationWarning, 2)
self.buildNetworkFromClause(rule)
self.alphaNodes = [
node for node in list(self.nodes.values()) if isinstance(node, AlphaNode)]
self.alphaBuiltInNodes = [node for node in list(
self.nodes.values()) if isinstance(node, BuiltInAlphaNode)]
self._setupDefaultRules()
if initialWorkingMemory:
start = time.time()
self.feedFactsToAdd(initialWorkingMemory)
print("Time to calculate closure on working memory: %s m seconds" % (
(time.time() - start) * 1000))
if graphVizOutFile:
print("Writing out RETE network to ", graphVizOutFile)
renderNetwork(self, nsMap=nsMap).write(graphVizOutFile)
def main():
from optparse import OptionParser
op = OptionParser('usage: %prog [options] factFile1 factFile2 ... factFileN')
op.add_option('--closure',
action='store_true',
default=False,
help = 'Whether or not to serialize the inferred triples'+
' along with the original triples. Otherwise '+
'(the default behavior), serialize only the inferred triples')
op.add_option('--output',
default='n3',
metavar='RDF_FORMAT',
choices = ['xml',
'TriX',
'n3',
'nt',
'rif',
'rif-xml',
'conflict',
'man-owl'],
help = "Serialize the inferred triples and/or original RDF triples to STDOUT "+
"using the specified RDF syntax ('xml','pretty-xml','nt','turtle', "+
"or 'n3') or to print a summary of the conflict set (from the RETE "+
"network) if the value of this option is 'conflict'. If the the "+
" value is 'rif' or 'rif-xml', Then the rules used for inference "+
"will be serialized as RIF. Finally if the value is 'man-owl', then "+
"the RDF facts are assumed to be OWL/RDF and serialized via Manchester OWL "+
"syntax. The default is %default")
op.add_option('--class',
dest='classes',
action='append',
default=[],
metavar='QNAME',
help = 'Used with --output=man-owl to determine which '+
'classes within the entire OWL/RDF are targetted for serialization'+
'. Can be used more than once')
op.add_option('--property',
action='append',
dest='properties',
default=[],
metavar='QNAME',
help = 'Used with --output=man-owl or --extract to determine which '+
'properties are serialized / extracted. Can be used more than once')
op.add_option('--normalize',
action='store_true',
default=False,
help = "Used with --output=man-owl to attempt to determine if the ontology is 'normalized' [Rector, A. 2003]"+
"The default is %default")
op.add_option('--input-format',
default='xml',
dest='inputFormat',
metavar='RDF_FORMAT',
choices = ['xml', 'trix', 'n3', 'nt', 'rdfa'],
help = "The format of the RDF document(s) which serve as the initial facts "+
" for the RETE network. One of 'xml','n3','trix', 'nt', "+
"or 'rdfa'. The default is %default")
op.add_option('--pDSemantics',
action='store_true',
default=False,
help = 'Used with --dlp to add pD semantics ruleset for semantics not covered '+
'by DLP but can be expressed in definite Datalog Logic Programming'+
' The default is %default')
op.add_option('--stdin',
action='store_true',
default=False,
help = 'Parse STDIN as an RDF graph to contribute to the initial facts. The default is %default ')
op.add_option('--ns',
action='append',
default=[],
metavar="PREFIX=URI",
help = 'Register a namespace binding (QName prefix to a base URI). This '+
'can be used more than once')
op.add_option('--rules',
default=[],
action='append',
default=[],
metavar='PATH_OR_URI',
help = 'The Notation 3 documents to use as rulesets for the RETE network'+
'. Can be specified more than once')
op.add_option('--ruleFacts',
action='store_true',
default=False,
help = "Determines whether or not to attempt to parse initial facts from "+
"the rule graph. The default is %default")
op.add_option('--dlp',
action='store_true',
default=False,
help = 'Use Description Logic Programming (DLP) to extract rules from OWL/RDF. The default is %default')
(options, facts) = op.parse_args()
nsBinds = {'iw':'http://inferenceweb.stanford.edu/2004/07/iw.owl#'}
for nsBind in options.ns:
pref,nsUri = nsBind.split('=')
nsBinds[pref]=nsUri
namespace_manager = NamespaceManager(Graph())
factGraph = Graph()
ruleSet = Ruleset()
for fileN in options.rules:
if options.ruleFacts:
factGraph.parse(fileN,format='n3')
print >>sys.stderr,"Parsing RDF facts from ", fileN
rs = HornFromN3(fileN)
nsBinds.update(rs.nsMapping)
ruleSet.formulae.extend(rs)
#ruleGraph.parse(fileN,format='n3')
ruleSet.nsMapping = nsBinds
for prefix,uri in nsBinds.items():
namespace_manager.bind(prefix, uri, override=False)
closureDeltaGraph = Graph()
closureDeltaGraph.namespace_manager = namespace_manager
factGraph.namespace_manager = namespace_manager
for fileN in facts:
factGraph.parse(fileN,format=options.inputFormat)
if options.stdin:
factGraph.parse(sys.stdin,format=options.inputFormat)
workingMemory = generateTokenSet(factGraph)
rule_store, rule_graph, network = SetupRuleStore(makeNetwork=True)
network.inferredFacts = closureDeltaGraph
network.nsMap = nsBinds
if options.dlp:
dlp=setupDescriptionLogicProgramming(factGraph,
addPDSemantics=options.pDSemantics,
constructNetwork=False)
ruleSet.formulae.extend(dlp)
if options.output == 'rif':
for rule in ruleSet:
print rule
elif options.output == 'man-owl':
cGraph = network.closureGraph(factGraph,readOnly=False)
cGraph.namespace_manager = namespace_manager
Individual.factoryGraph = cGraph
if options.classes:
mapping = dict(namespace_manager.namespaces())
for c in options.classes:
pref,uri=c.split(':')
print Class(URIRef(mapping[pref]+uri)).__repr__(True)
elif options.properties:
mapping = dict(namespace_manager.namespaces())
for p in options.properties:
pref,uri=p.split(':')
print Property(URIRef(mapping[pref]+uri))
else:
for p in AllProperties(cGraph):
print p.identifier
print repr(p)
for c in AllClasses(cGraph):
if options.normalize:
if c.isPrimitive():
primAnc = [sc for sc in c.subClassOf if sc.isPrimitive()]
if len(primAnc)>1:
warnings.warn("Branches of primitive skeleton taxonomy"+
" should form trees: %s has %s primitive parents: %s"%(
c.qname,len(primAnc),primAnc),UserWarning,1)
children = [desc for desc in c.subSumpteeIds()]
for child in children:
for otherChild in [o for o in children if o is not child]:
if not otherChild in [c.identifier
for c in Class(child).disjointWith]:# and\
warnings.warn("Primitive children (of %s) "+
"must be mutually disjoint: %s and %s"%(
c.qname,
Class(child).qname,
Class(otherChild).qname),UserWarning,1)
if not isinstance(c.identifier,BNode):
print c.__repr__(True)
for rule in ruleSet:
network.buildNetworkFromClause(rule)
start = time.time()
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds"%sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds"%sTime
print >>sys.stderr,"Time to calculate closure on working memory: ",sTimeStr
print >>sys.stderr, network
if options.output == 'conflict':
network.reportConflictSet()
elif options.output not in ['rif','rif-xml','man-owl']:
if options.closure:
cGraph = network.closureGraph(factGraph)
cGraph.namespace_manager = namespace_manager
print cGraph.serialize(destination=None,
format=options.output,
base=None)
else:
print network.inferredFacts.serialize(destination=None,
format=options.output,
base=None)
def main():
from optparse import OptionParser
op = OptionParser('usage: %prog [options] factFile1 factFile2 ... factFileN')
op.add_option('--why',
default=None,
help='Specifies the goals to solve for using the non-naive methods' +
'see --method')
op.add_option('--closure',
action='store_true',
default=False,
help='Whether or not to serialize the inferred triples' +
' along with the original triples. Otherwise ' +
'(the default behavior), serialize only the inferred triples')
op.add_option('--imports',
action='store_true',
default=False,
help='Whether or not to follow owl:imports in the fact graph')
op.add_option('--output',
default='n3',
metavar='RDF_FORMAT',
choices=['xml',
'TriX',
'n3',
'pml',
'proof-graph',
'nt',
'rif',
'rif-xml',
'conflict',
'man-owl'],
help="Serialize the inferred triples and/or original RDF triples to STDOUT " +
"using the specified RDF syntax ('xml', 'pretty-xml', 'nt', 'turtle', " +
"or 'n3') or to print a summary of the conflict set (from the RETE " +
"network) if the value of this option is 'conflict'. If the the " +
" value is 'rif' or 'rif-xml', Then the rules used for inference " +
"will be serialized as RIF. If the value is 'pml' and --why is used, " +
" then the PML RDF statements are serialized. If output is " +
"'proof-graph then a graphviz .dot file of the proof graph is printed. " +
"Finally if the value is 'man-owl', then the RDF facts are assumed " +
"to be OWL/RDF and serialized via Manchester OWL syntax. The default is %default")
op.add_option('--class',
dest='classes',
action='append',
default=[],
metavar='QNAME',
help='Used with --output=man-owl to determine which ' +
'classes within the entire OWL/RDF are targetted for serialization' +
'. Can be used more than once')
op.add_option('--hybrid',
action='store_true',
default=False,
help='Used with with --method=bfp to determine whether or not to ' +
'peek into the fact graph to identify predicates that are both ' +
'derived and base. This is expensive for large fact graphs' +
'and is explicitely not used against SPARQL endpoints')
op.add_option('--property',
action='append',
dest='properties',
default=[],
metavar='QNAME',
help='Used with --output=man-owl or --extract to determine which ' +
'properties are serialized / extracted. Can be used more than once')
op.add_option('--normalize',
action='store_true',
default=False,
help="Used with --output=man-owl to attempt to determine if the ontology is 'normalized' [Rector, A. 2003]" +
"The default is %default")
op.add_option('--ddlGraph',
default=False,
help="The location of a N3 Data Description document describing the IDB predicates")
op.add_option('--input-format',
default='xml',
dest='inputFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help="The format of the RDF document(s) which serve as the initial facts " +
" for the RETE network. One of 'xml', 'n3', 'trix', 'nt', " +
"or 'rdfa'. The default is %default")
op.add_option('--safety',
default='none',
metavar='RULE_SAFETY',
choices=['loose', 'strict', 'none'],
help="Determines how to handle RIF Core safety. A value of 'loose' " +
" means that unsafe rules will be ignored. A value of 'strict' " +
" will cause a syntax exception upon any unsafe rule. A value of " +
"'none' (the default) does nothing")
op.add_option('--pDSemantics',
action='store_true',
default=False,
help='Used with --dlp to add pD semantics ruleset for semantics not covered ' +
'by DLP but can be expressed in definite Datalog Logic Programming' +
' The default is %default')
op.add_option('--stdin',
action='store_true',
default=False,
help='Parse STDIN as an RDF graph to contribute to the initial facts. The default is %default ')
op.add_option('--ns',
action='append',
default=[],
metavar="PREFIX=URI",
help='Register a namespace binding (QName prefix to a base URI). This ' +
'can be used more than once')
op.add_option('--rules',
default=[],
action='append',
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as rulesets for the RETE network' +
'. Can be specified more than once')
op.add_option('-d', '--debug', action='store_true', default=True,
help='Include debugging output')
op.add_option('--strictness',
default='defaultBase',
metavar='DDL_STRICTNESS',
choices=['loose',
'defaultBase',
'defaultDerived',
'harsh'],
help='Used with --why to specify whether to: *not* check if predicates are ' +
' both derived and base (loose), if they are, mark as derived (defaultDerived) ' +
'or as base (defaultBase) predicates, else raise an exception (harsh)')
op.add_option('--method',
default='naive',
metavar='reasoning algorithm',
choices=['gms', 'bfp', 'naive'],
help='Used with --why to specify how to evaluate answers for query. ' +
'One of: gms, sld, bfp, naive')
op.add_option('--firstAnswer',
default=False,
action='store_true',
help='Used with --why to determine whether to fetch all answers or just ' +
'the first')
op.add_option('--edb',
default=[],
action='append',
metavar='EXTENSIONAL_DB_PREDICATE_QNAME',
help='Used with --why/--strictness=defaultDerived to specify which clashing ' +
'predicate will be designated as a base predicate')
op.add_option('--idb',
default=[],
action='append',
metavar='INTENSIONAL_DB_PREDICATE_QNAME',
help='Used with --why/--strictness=defaultBase to specify which clashing ' +
'predicate will be designated as a derived predicate')
op.add_option('--hybridPredicate',
default=[],
action='append',
metavar='PREDICATE_QNAME',
help='Used with --why to explicitely specify a hybrid predicate (in both ' +
' IDB and EDB) ')
op.add_option('--noMagic',
default=[],
action='append',
metavar='DB_PREDICATE_QNAME',
help='Used with --why to specify that the predicate shouldnt have its ' +
'magic sets calculated')
op.add_option('--filter',
action='append',
default=[],
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as a filter (entailments do not particpate in network)')
op.add_option('--ruleFacts',
action='store_true',
default=False,
help="Determines whether or not to attempt to parse initial facts from " +
"the rule graph. The default is %default")
op.add_option('--builtins',
default=False,
metavar='PATH_TO_PYTHON_MODULE',
help="The path to a python module with function definitions (and a " +
"dicitonary called ADDITIONAL_FILTERS) to use for builtins implementations")
op.add_option('--dlp',
action='store_true',
default=False,
help='Use Description Logic Programming (DLP) to extract rules from OWL/RDF. The default is %default')
op.add_option('--sparqlEndpoint',
action='store_true',
default=False,
help='Indicates that the sole argument is the URI of a SPARQL endpoint to query')
op.add_option('--ontology',
action='append',
default=[],
metavar='PATH_OR_URI',
help='The path to an OWL RDF/XML graph to use DLP to extract rules from ' +
'(other wise, fact graph(s) are used) ')
op.add_option('--ontologyFormat',
default='xml',
dest='ontologyFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help="The format of the OWL RDF/XML graph specified via --ontology. The default is %default")
op.add_option('--builtinTemplates',
default=None,
metavar='N3_DOC_PATH_OR_URI',
help='The path to an N3 document associating SPARQL FILTER templates to ' +
'rule builtins')
op.add_option('--negation',
action='store_true',
default=False,
help='Extract negative rules?')
op.add_option('--normalForm',
action='store_true',
default=False,
help='Whether or not to reduce DL axioms & LP rules to a normal form')
(options, facts) = op.parse_args()
nsBinds = {'iw': 'http://inferenceweb.stanford.edu/2004/07/iw.owl#'}
for nsBind in options.ns:
pref, nsUri = nsBind.split('=')
nsBinds[pref] = nsUri
namespace_manager = NamespaceManager(Graph())
if options.sparqlEndpoint:
factGraph = Graph(plugin.get('SPARQLStore', Store)(facts[0]))
options.hybrid = False
else:
factGraph = Graph()
ruleSet = Ruleset()
for fileN in options.rules:
if options.ruleFacts and not options.sparqlEndpoint:
factGraph.parse(fileN, format='n3')
print("Parsing RDF facts from ", fileN)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rs = HornFromN3(fileN,
additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
else:
rs = HornFromN3(fileN)
nsBinds.update(rs.nsMapping)
ruleSet.formulae.extend(rs)
#ruleGraph.parse(fileN, format='n3')
ruleSet.nsMapping = nsBinds
for prefix, uri in list(nsBinds.items()):
namespace_manager.bind(prefix, uri, override=False)
closureDeltaGraph = Graph()
closureDeltaGraph.namespace_manager = namespace_manager
factGraph.namespace_manager = namespace_manager
if not options.sparqlEndpoint:
for fileN in facts:
factGraph.parse(fileN, format=options.inputFormat)
if options.imports:
for owlImport in factGraph.objects(predicate=OWL_NS.imports):
factGraph.parse(owlImport)
print("Parsed Semantic Web Graph.. ", owlImport)
if facts:
for pref, uri in factGraph.namespaces():
nsBinds[pref] = uri
if options.stdin:
assert not options.sparqlEndpoint, (
"Cannot use --stdin with --sparqlEndpoint")
factGraph.parse(sys.stdin, format=options.inputFormat)
# Normalize namespace mappings
# prune redundant, rdflib-allocated namespace prefix mappings
new_ns_mgr = NamespaceManager(factGraph)
from FuXi.Rete.Util import CollapseDictionary
for k, v in CollapseDictionary(dict([(k, v) for k, v in
factGraph.namespaces()])).items():
new_ns_mgr.bind(k, v)
factGraph.namespace_manager = new_ns_mgr
if options.normalForm:
NormalFormReduction(factGraph)
if not options.sparqlEndpoint:
workingMemory = generateTokenSet(factGraph)
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rule_store, rule_graph, network = SetupRuleStore(
makeNetwork=True, additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
else:
rule_store, rule_graph, network = SetupRuleStore(makeNetwork=True)
network.inferredFacts = closureDeltaGraph
network.nsMap = nsBinds
if options.dlp:
from FuXi.DLP.DLNormalization import NormalFormReduction
if options.ontology:
ontGraph = Graph()
for fileN in options.ontology:
ontGraph.parse(fileN, format=options.ontologyFormat)
for prefix, uri in ontGraph.namespaces():
nsBinds[prefix] = uri
namespace_manager.bind(prefix, uri, override=False)
if options.sparqlEndpoint:
factGraph.store.bind(prefix, uri)
else:
ontGraph = factGraph
NormalFormReduction(ontGraph)
dlp = network.setupDescriptionLogicProgramming(
ontGraph,
addPDSemantics=options.pDSemantics,
constructNetwork=False,
ignoreNegativeStratus=options.negation,
safety=safetyNameMap[options.safety])
ruleSet.formulae.extend(dlp)
if options.output == 'rif' and not options.why:
for rule in ruleSet:
print(rule)
if options.negation:
for nRule in network.negRules:
print(nRule)
elif options.output == 'man-owl':
cGraph = network.closureGraph(factGraph, readOnly=False)
cGraph.namespace_manager = namespace_manager
Individual.factoryGraph = cGraph
if options.classes:
mapping = dict(namespace_manager.namespaces())
for c in options.classes:
pref, uri = c.split(':')
print(Class(URIRef(mapping[pref] + uri)).__repr__(True))
elif options.properties:
mapping = dict(namespace_manager.namespaces())
for p in options.properties:
pref, uri = p.split(':')
print(Property(URIRef(mapping[pref] + uri)))
else:
for p in AllProperties(cGraph):
print(p.identifier, first(p.label))
print(repr(p))
for c in AllClasses(cGraph):
if options.normalize:
if c.isPrimitive():
primAnc = [sc for sc in c.subClassOf if sc.isPrimitive()]
if len(primAnc) > 1:
warnings.warn("Branches of primitive skeleton taxonomy" +
" should form trees: %s has %s primitive parents: %s" % (
c.qname, len(primAnc), primAnc), UserWarning, 1)
children = [desc for desc in c.subSumpteeIds()]
for child in children:
for otherChild in [o for o in children if o is not child]:
if not otherChild in [c.identifier
for c in Class(child).disjointWith]: # and \
warnings.warn(
"Primitive children (of %s) " % (c.qname) + \
"must be mutually disjoint: %s and %s" % (
Class(child).qname, Class(otherChild).qname), UserWarning, 1)
# if not isinstance(c.identifier, BNode):
print(c.__repr__(True))
if not options.why:
# Naive construction of graph
for rule in ruleSet:
network.buildNetworkFromClause(rule)
if options.why:
why(options, factGraph, network, nsBinds, ruleSet, workingMemory)
elif options.method == 'naive':
start = time.time()
network.feedFactsToAdd(workingMemory)
sTime = time.time() - start
if sTime > 1:
sTimeStr = "%s seconds" % sTime
else:
sTime = sTime * 1000
sTimeStr = "%s milli seconds" % sTime
print("Time to calculate closure on working memory: ", sTimeStr)
print(network)
if options.output == 'conflict':
network.reportConflictSet()
for fileN in options.filter:
for rule in HornFromN3(fileN):
network.buildFilterNetworkFromClause(rule)
if options.negation and network.negRules and options.method in [
'both', 'bottomUp']:
now = time.time()
rt = network.calculateStratifiedModel(factGraph)
print(
"Time to calculate stratified, stable model"
" (inferred %s facts): %s" % (rt, time.time() - now))
if options.filter:
print("Applying filter to entailed facts")
network.inferredFacts = network.filteredFacts
if options.closure and options.output in RDF_SERIALIZATION_FORMATS:
cGraph = network.closureGraph(factGraph)
cGraph.namespace_manager = namespace_manager
print(cGraph.serialize(destination=None,
format=options.output,
base=None))
elif options.output and options.output in RDF_SERIALIZATION_FORMATS:
print(network.inferredFacts.serialize(destination=None,
format=options.output,
base=None))
def main():
from optparse import OptionParser
op = OptionParser(
'usage: %prog [options] factFile1 factFile2 ... factFileN')
op.add_option('--why',
default=None,
help='Specifies the goals to solve for')
op.add_option(
'--closure',
action='store_true',
default=False,
help='Whether or not to serialize the inferred triples' +
' along with the original triples. Otherwise ' +
'(the default behavior), serialize only the inferred triples')
op.add_option(
'--naive',
action='store_true',
default=False,
help='Naively perform forward chaining over rules and facts using the '
+ 'RETE network')
op.add_option(
'--imports',
action='store_true',
default=False,
help='Whether or not to follow owl:imports in the fact graph')
op.add_option(
'--output',
default='n3',
metavar='RDF_FORMAT',
choices=[
'xml', 'TriX', 'n3', 'pml', 'proof-graph', 'nt', 'rif', 'rif-xml',
'conflict', 'man-owl'
],
help=
"Serialize the inferred triples and/or original RDF triples to STDOUT "
+
"using the specified RDF syntax ('xml','pretty-xml','nt','turtle', " +
"or 'n3') or to print a summary of the conflict set (from the RETE " +
"network) if the value of this option is 'conflict'. If the the " +
" value is 'rif' or 'rif-xml', Then the rules used for inference " +
"will be serialized as RIF. If the value is 'pml' and --why is used, "
+ " then the PML RDF statements are serialized. If output is " +
"'proof-graph then a graphviz .dot file of the proof graph is printed. "
+
"Finally if the value is 'man-owl', then the RDF facts are assumed " +
"to be OWL/RDF and serialized via Manchester OWL syntax. The default is %default"
)
op.add_option(
'--class',
dest='classes',
action='append',
default=[],
metavar='QNAME',
help='Used with --output=man-owl to determine which ' +
'classes within the entire OWL/RDF are targetted for serialization' +
'. Can be used more than once')
op.add_option(
'--hybrid',
action='store_true',
default=False,
help='Used to determine whether or not to ' +
'peek into the fact graph to identify predicates that are both ' +
'derived and base. This is expensive for large fact graphs' +
'and is explicitely not used against SPARQL endpoints')
op.add_option(
'--property',
action='append',
dest='properties',
default=[],
metavar='QNAME',
help='Used with --output=man-owl or --extract to determine which ' +
'properties are serialized / extracted. Can be used more than once')
op.add_option(
'--normalize',
action='store_true',
default=False,
help=
"Used with --output=man-owl to attempt to determine if the ontology is 'normalized' [Rector, A. 2003]"
+ "The default is %default")
op.add_option(
'--ddlGraph',
default=False,
help=
"The location of a N3 Data Description document describing the IDB predicates"
)
op.add_option(
'--input-format',
default='xml',
dest='inputFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help=
"The format of the RDF document(s) which serve as the initial facts " +
" for the RETE network. One of 'xml','n3','trix', 'nt', " +
"or 'rdfa'. The default is %default")
op.add_option(
'--safety',
default='none',
metavar='RULE_SAFETY',
choices=['loose', 'strict', 'none'],
help="Determines how to handle RIF Core safety. A value of 'loose' " +
" means that unsafe rules will be ignored. A value of 'strict' " +
" will cause a syntax exception upon any unsafe rule. A value of " +
"'none' (the default) does nothing")
op.add_option(
'--pDSemantics',
action='store_true',
default=False,
help=
'Used with --dlp to add pD semantics ruleset for semantics not covered '
+ 'by DLP but can be expressed in definite Datalog Logic Programming' +
' The default is %default')
op.add_option(
'--stdin',
action='store_true',
default=False,
help=
'Parse STDIN as an RDF graph to contribute to the initial facts. The default is %default '
)
op.add_option(
'--ns',
action='append',
default=[],
metavar="PREFIX=URI",
help='Register a namespace binding (QName prefix to a base URI). This '
+ 'can be used more than once')
op.add_option(
'--rules',
default=[],
action='append',
metavar='PATH_OR_URI',
help='The Notation 3 documents to use as rulesets for the RETE network'
+ '. Can be specified more than once')
op.add_option('-d',
'--debug',
action='store_true',
default=False,
help='Include debugging output')
op.add_option(
'--strictness',
default='defaultBase',
metavar='DDL_STRICTNESS',
choices=['loose', 'defaultBase', 'defaultDerived', 'harsh'],
help=
'Used with --why to specify whether to: *not* check if predicates are '
+
' both derived and base (loose), if they are, mark as derived (defaultDerived) '
+
'or as base (defaultBase) predicates, else raise an exception (harsh)')
op.add_option(
'--firstAnswer',
default=False,
action='store_true',
help=
'Used with --why to determine whether to fetch all answers or just ' +
'the first')
op.add_option(
'--edb',
default=[],
action='append',
metavar='EXTENSIONAL_DB_PREDICATE_QNAME',
help=
'Used with --why/--strictness=defaultDerived to specify which clashing '
+ 'predicate will be designated as a base predicate')
op.add_option(
'--idb',
default=[],
action='append',
metavar='INTENSIONAL_DB_PREDICATE_QNAME',
help=
'Used with --why/--strictness=defaultBase to specify which clashing ' +
'predicate will be designated as a derived predicate')
op.add_option(
'--hybridPredicate',
default=[],
action='append',
metavar='PREDICATE_QNAME',
help=
'Used with --why to explicitely specify a hybrid predicate (in both ' +
' IDB and EDB) ')
op.add_option(
'--noMagic',
default=[],
action='append',
metavar='DB_PREDICATE_QNAME',
help='Used with --why to specify that the predicate shouldnt have its '
+ 'magic sets calculated')
op.add_option(
'--filter',
action='append',
default=[],
metavar='PATH_OR_URI',
help=
'The Notation 3 documents to use as a filter (entailments do not particpate in network)'
)
op.add_option(
'--ruleFacts',
action='store_true',
default=False,
help="Determines whether or not to attempt to parse initial facts from "
+ "the rule graph. The default is %default")
op.add_option(
'--builtins',
default=False,
metavar='PATH_TO_PYTHON_MODULE',
help="The path to a python module with function definitions (and a " +
"dicitonary called ADDITIONAL_FILTERS) to use for builtins implementations"
)
op.add_option(
'--dlp',
action='store_true',
default=False,
help=
'Use Description Logic Programming (DLP) to extract rules from OWL/RDF. The default is %default'
)
op.add_option(
'--sparqlEndpoint',
action='store_true',
default=False,
help=
'Indicates that the sole argument is the URI of a SPARQL endpoint to query'
)
op.add_option(
'--ontology',
action='append',
default=[],
metavar='PATH_OR_URI',
help=
'The path to an OWL RDF/XML graph to use DLP to extract rules from ' +
'(other wise, fact graph(s) are used) ')
op.add_option(
'--ruleFormat',
default='n3',
dest='ruleFormat',
metavar='RULE_FORMAT',
choices=['n3', 'rif'],
help=
"The format of the rules to parse ('n3', 'rif'). The default is %default"
)
op.add_option(
'--ontologyFormat',
default='xml',
dest='ontologyFormat',
metavar='RDF_FORMAT',
choices=['xml', 'trix', 'n3', 'nt', 'rdfa'],
help=
"The format of the OWL RDF/XML graph specified via --ontology. The default is %default"
)
op.add_option(
'--builtinTemplates',
default=None,
metavar='N3_DOC_PATH_OR_URI',
help=
'The path to an N3 document associating SPARQL FILTER templates to ' +
'rule builtins')
op.add_option(
'--normalForm',
action='store_true',
default=False,
help='Whether or not to reduce DL axioms & LP rules to a normal form')
(options, facts) = op.parse_args()
nsBinds = {'iw': 'http://inferenceweb.stanford.edu/2004/07/iw.owl#'}
for nsBind in options.ns:
pref, nsUri = nsBind.split('=')
nsBinds[pref] = nsUri
namespace_manager = NamespaceManager(Graph())
if options.sparqlEndpoint:
factGraph = Graph(plugin.get('SPARQL', Store)(facts[0]))
options.hybrid = False
else:
factGraph = Graph()
ruleSet = Ruleset()
for fileN in options.rules:
if options.ruleFacts and not options.sparqlEndpoint:
factGraph.parse(fileN, format='n3')
print >> sys.stderr, "Parsing RDF facts from ", fileN
if options.builtins:
import imp
userFuncs = imp.load_source('builtins', options.builtins)
rs = HornFromN3(fileN,
additionalBuiltins=userFuncs.ADDITIONAL_FILTERS)
nsBinds.update(rs.nsMapping)
elif options.ruleFormat == 'rif':
try:
from FuXi.Horn.RIFCore import RIFCoreParser
rif_parser = RIFCoreParser(location=fileN,
debug=options.debug,
nsBindings=nsBinds)
rs, facts = rif_parser.getRuleset()
except ImportError, e:
raise Exception(
"Missing 3rd party libraries for RIF processing: %s" % e)
else:
rs = HornFromN3(fileN)
nsBinds.update(rs.nsMapping)
ruleSet.formulae.extend(rs)
