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kwg_sparqlquery.py
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import json
import logging
import os
from collections import namedtuple
from qgis.core import QgsMessageLog, Qgis
from .kwg_sparqlutil import kwg_sparqlutil
class kwg_sparqlquery:
def __init__(self):
self.logger = logging.getLogger()
self.logger.setLevel(logging.DEBUG)
self.sparqlUTIL = kwg_sparqlutil()
self.path = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__file__)))
if not os.path.exists(os.path.join(self.path, 'logs')):
os.makedirs(os.path.join(self.path, 'logs'))
handler = logging.FileHandler(os.path.join(self.path, 'logs', 'kwg_geoenrichment.log'), 'w+', 'utf-8')
formatter = logging.Formatter(
'%(asctime)s - %(levelname)s - %(filename)s:%(funcName)s - %(message)s')
handler.setFormatter(formatter) # Pass handler as a parameter, not assign
self.logger.addHandler(handler)
def getEntityValuesFromGeometry(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
wkt_literal="Polygon((-119.73822343857 34.4749685817967, -119.571162553598 34.4767458252538, -119.670688187198 34.3754429481962, -119.73822343857 34.4749685817967))"):
"""
Retrieves Entities based on the selected wkt literal
Arguments:
sparql_endpoint: the sparql end point for the graph database
wkt_literal: the wkt literal for the user selected polygon
Returns:
The raw JSON response containing entities associated with S2Cells within the given geometry
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
EntityQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
geoPrefix = "kwg-ont" if sparql_endpoint=="https://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V2-Vienna" else "geo"
queryString = """
select distinct ?entity where {
values ?userWKT {"%s"^^geo:wktLiteral}.
?adminRegion2 a kwg-ont:AdministrativeRegion_2.
?adminRegion2 geo:hasGeometry ?arGeo2.
?arGeo2 geo:asWKT ?arWKT2.
FILTER(geof:sfIntersects(?userWKT, ?arWKT2) || geof:sfWithin(?userWKT, ?arWKT2)).
?adminRegion3 %s:sfWithin ?adminRegion2.
?adminRegion3 a kwg-ont:AdministrativeRegion_3.
?adminRegion3 geo:hasGeometry ?arGeo3.
?arGeo3 geo:asWKT ?arWKT3.
FILTER(geof:sfIntersects(?userWKT, ?arWKT3) || geof:sfWithin(?userWKT, ?arWKT3)).
?adminRegion3 kwg-ont:sfContains ?s2Cell.
?s2Cell a kwg-ont:KWGCellLevel13.
?s2Cell geo:hasGeometry ?s2Geo.
?s2Geo geo:asWKT ?s2WKT.
FILTER(geof:sfIntersects(?userWKT, ?s2WKT) || geof:sfWithin(?userWKT, ?s2WKT)).
{?entity ?p ?s2Cell.} union {?s2Cell ?p ?entity.}
?entity a geo:Feature.
}
""" % (wkt_literal, geoPrefix)
query = queryPrefix + queryString
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
EntityQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(EntityQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(EntityQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: ent"
EntityQueryResultBindings.extend(EntityQueryResult["results"]["bindings"])
except:
return "error: ent"
return EntityQueryResultBindings
def getFirstDegreeClass(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[]
):
"""
Retrieves first degree class given the entity list
Arguments:
sparql_endpoint: the sparql end point for the graph database
entityList: list object of entities associated with the S2Cells
Returns:
The raw JSON response containing first degree class
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
FirstDegreeClassQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
queryString = """
select distinct ?type ?label where {
?entity a ?type.
?type rdfs:label ?label.
values ?entity {%s}
}
""" % (entityPrefixed)
# self.logger.debug("Class0Debug: " + queryString)
query = queryPrefix + queryString
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
FirstDegreeClassQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(FirstDegreeClassQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(FirstDegreeClassQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: sub0"
FirstDegreeClassQueryResultBindings.extend(FirstDegreeClassQueryResult["results"]["bindings"])
except:
return "error: sub0"
return FirstDegreeClassQueryResultBindings
def getFirstDegreePredicate(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[],
firstDegreeClass=""
):
"""
Retrieves first degree predicate given first degree class and entity list
Arguments:
sparql_endpoint: the sparql end point for the graph database
entityList: list object of entities associated with the S2Cells
firstDegreeClass: the name of the user selected first degree class
Returns:
The raw JSON response containing first degree predicate
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
FirstDegreePredicateQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
queryString = """
select distinct ?p ?label where {
?entity a %s;
?p ?o.
optional {?p rdfs:label ?label}
values ?entity {%s}
}
""" % (firstDegreeClass, entityPrefixed)
query = queryPrefix + queryString
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
FirstDegreePredicateQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(FirstDegreePredicateQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(FirstDegreePredicateQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: pred0"
FirstDegreePredicateQueryResultBindings.extend(FirstDegreePredicateQueryResult["results"]["bindings"])
except:
return "error: pred0"
return FirstDegreePredicateQueryResultBindings
def getFirstDegreeObject(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[],
firstDegreeClass="",
firstDegreePredicate=""
):
"""
Retrieves first degree object given first degree class, first degree predicate and entity list
Arguments:
sparql_endpoint: the sparql end point for the graph database
entityList: list object of entities associated with the S2Cells
firstDegreeClass: the name of the user selected first degree class
firstDegreePredicate: the name of the user selected first degree predicate
Returns:
The raw JSON response containing first degree object
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
FirstDegreeObjectQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
queryString = """
select distinct ?type ?label ?o where {
?entity a %s; %s ?o.
?o a ?type. ?type rdfs:label ?label.
values ?entity {%s}
}
""" % (firstDegreeClass, firstDegreePredicate, entityPrefixed)
query = queryPrefix + queryString
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
FirstDegreeObjectQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(FirstDegreeObjectQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(FirstDegreeObjectQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: obj0"
FirstDegreeObjectQueryResultBindings.extend(FirstDegreeObjectQueryResult["results"]["bindings"])
except:
return "error: obj0"
return FirstDegreeObjectQueryResultBindings
def getNDegreePredicate(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[],
selectedVals=[],
degree=0
):
"""
Retrieves first degree predicate given first degree class and entity list
Arguments:
sparql_endpoint: the sparql end point for the graph database
entityList: list object of entities associated with the S2Cells
firstDegreeClass: the name of the user selected first degree class
Returns:
The raw JSON response containing first degree predicate
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
FirstNPredicateQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
propQuery = "select distinct ?p ?label where { \n";
for i in range(1, degree+1):
subjectStr = "?entity" if (i == 1) else "?o" + str(i - 1)
classStr = selectedVals[2 * (i-1)]
predicateStr = "?p" if (i == degree) else selectedVals[2 * (i-1) + 1]
objectStr = "?o" + str(i)
propQuery += subjectStr + " a " + classStr + "; " + predicateStr + " " + objectStr + ". "
propQuery += "optional {?p rdfs:label ?label} values ?entity { %s } }" % (entityPrefixed)
query = queryPrefix + propQuery
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
self.logger.debug(query)
FirstDegreePredicateQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(FirstDegreePredicateQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(FirstDegreePredicateQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: predN"
FirstNPredicateQueryResultBindings.extend(FirstDegreePredicateQueryResult["results"]["bindings"])
except:
return "error: predN"
return FirstNPredicateQueryResultBindings
def getNDegreeObject(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[],
selectedVals=[],
degree=0
):
"""
Retrieves first degree object given first degree class, first degree predicate and entity list
Arguments:
sparql_endpoint: the sparql end point for the graph database
entityList: list object of entities associated with the S2Cells
firstDegreeClass: the name of the user selected first degree class
firstDegreePredicate: the name of the user selected first degree predicate
Returns:
The raw JSON response containing first degree object
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
NDegreeObjectQueryResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
objQuery = "select distinct ?type ?label where { \n";
for i in range(1, degree + 1):
subjectStr = "?entity" if (i == 1) else "?o" + str(i - 1)
classStr = selectedVals[2 * (i - 1)]
predicateStr = selectedVals[2 * (i - 1) + 1]
objectStr = "?o. ?o a ?type" if (i == degree) else "?o" + str(i)
objQuery += subjectStr + " a " + classStr + "; " + predicateStr + " " + objectStr + ". "
objQuery += "?type rdfs:label ?label. values ?entity { %s } }" % (entityPrefixed)
query = queryPrefix + objQuery
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
self.logger.debug(query)
NDegreeObjectQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(NDegreeObjectQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(NDegreeObjectQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: objN"
NDegreeObjectQueryResultBindings.extend(NDegreeObjectQueryResult["results"]["bindings"])
except:
return "error: objN"
return NDegreeObjectQueryResultBindings
def getNDegreeResults(self,
sparql_endpoint="http://stko-kwg.geog.ucsb.edu/graphdb/repositories/KWG-V3",
entityList=[],
selectedVals=[],
degree=0
):
"""
"""
SPARQLUtil = kwg_sparqlutil()
queryPrefix = SPARQLUtil.make_sparql_prefix()
NDegreeResultBindings = []
keepPaginating = True
offset = 0
try:
while keepPaginating:
entityPrefixed = ""
for entity in entityList:
entityPrefixed += " " + self.sparqlUTIL.make_prefixed_iri(entity)
finalObject = "?o" + str(degree)
# content 2
sub_query = "select distinct ?entity ?entityLabel ?o %s ?wkt where { ?entity rdfs:label ?entityLabel. " % (finalObject)
for i in range (0, len(selectedVals)):
if i % 2 == 0:
if i == 0:
entityName = "?entity";
else:
entityName = "?o" if (i + 1 == len(selectedVals)) else "?o" + str(i//2)
className = selectedVals[i]
sub_query += entityName + " a " + className + ". "
else:
if i == 1:
entityName = "?entity"
nextEntityName = "?o" if (i + 1 == len(selectedVals)) else "?o1"
else:
entityName = "?o" + str(i//2)
nextEntityName = "?o" if (i + 1 == len(selectedVals)) else "?o" + str (i//2 + 1)
propName = selectedVals[i]
sub_query += entityName + " " + propName + " " + nextEntityName + ". "
sub_query += "\t\t\t optional {?entity geo:hasGeometry ?geo. ?geo geo:asWKT ?wkt} values ?entity {%s}}" % (
entityPrefixed)
query = queryPrefix + sub_query
query += "ORDER BY ?entity "
query += "LIMIT 10000 "
query += "OFFSET %s" % (offset)
self.logger.info("programmed: " + query)
self.logger.debug(query)
NDegreeObjectQueryResult = SPARQLUtil.sparql_requests(query=query,
sparql_endpoint=sparql_endpoint,
doInference=False,
request_method="post")
try:
if len(NDegreeObjectQueryResult["results"]["bindings"]) == 10000:
keepPaginating = True
offset += len(NDegreeObjectQueryResult["results"]["bindings"])
else :
keepPaginating = False
except Exception as e:
return "error: res"
for obj in NDegreeObjectQueryResult["results"]["bindings"]:
NDegreeResultBindings.append(obj)
except:
return "error: res"
return NDegreeResultBindings
if __name__ == "__main__":
SQ = kwg_sparqlquery()
# SQ.EventTypeSPARQLQuery()
# print(SQ.sparqlUTIL.make_sparql_prefix())
print(SQ.getS2CellsFromGeometry())