/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.riot.process.inf;
import java.util.ArrayList ;
import java.util.HashMap ;
import java.util.List ;
import java.util.Map ;
import org.apache.jena.atlas.lib.StrUtils ;
import com.hp.hpl.jena.graph.Node ;
import com.hp.hpl.jena.query.Query ;
import com.hp.hpl.jena.query.QueryExecution ;
import com.hp.hpl.jena.query.QueryExecutionFactory ;
import com.hp.hpl.jena.query.QueryFactory ;
import com.hp.hpl.jena.query.QuerySolution ;
import com.hp.hpl.jena.query.ResultSet ;
import com.hp.hpl.jena.query.Syntax ;
import com.hp.hpl.jena.rdf.model.Model ;
public class InferenceSetupRDFS
{
/*package*/ final Map<Node, List<Node>> transClasses = new HashMap<Node, List<Node>>() ;
/*package*/ final Map<Node, List<Node>> transProperties = new HashMap<Node, List<Node>>() ;
/*package*/ final Map<Node, List<Node>> domainList = new HashMap<Node, List<Node>>() ;
/*package*/ final Map<Node, List<Node>> rangeList = new HashMap<Node, List<Node>>() ;
public InferenceSetupRDFS(Model vocab)
{
// Find classes - uses property paths
exec("SELECT ?x ?y { ?x rdfs:subClassOf+ ?y }", vocab, transClasses) ;
// Find properties
exec("SELECT ?x ?y { ?x rdfs:subPropertyOf+ ?y }", vocab, transProperties) ;
// Find domain
exec("SELECT ?x ?y { ?x rdfs:domain ?y }", vocab, domainList) ;
// Find range
exec("SELECT ?x ?y { ?x rdfs:range ?y }", vocab, rangeList) ;
}
private static void exec(String qs, Model model, Map<Node, List<Node>> multimap)
{
String preamble = StrUtils.strjoinNL("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>",
"PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>",
"PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>",
"PREFIX owl: <http://www.w3.org/2002/07/owl#>",
"PREFIX skos: <http://www.w3.org/2004/02/skos/core#>") ;
Query query = QueryFactory.create(preamble+"\n"+qs, Syntax.syntaxARQ) ;
QueryExecution qexec = QueryExecutionFactory.create(query, model) ;
ResultSet rs = qexec.execSelect() ;
for ( ; rs.hasNext() ; )
{
QuerySolution soln= rs.next() ;
Node x = soln.get("x").asNode() ;
Node y = soln.get("y").asNode() ;
if ( ! multimap.containsKey(x) )
multimap.put(x, new ArrayList<Node>()) ;
multimap.get(x).add(y) ;
}
}
}