Add method to parse a string into a Query

This is using `SPARQLParser`, an undocumented class provided by JRDFox

3 files changed, 16 insertions, 14 deletions

diff --git a/src/main/scala/rsacomb/Main.scala b/src/main/scala/rsacomb/Main.scala
index 35c682e..c6bd6a1 100644
--- a/src/main/scala/rsacomb/Main.scala
+++ b/src/main/scala/rsacomb/Main.scala
@@ -53,7 +53,9 @@ object RSAComb extends App {
     //val tboxCanon = rsa.canonicalModel()
 
     /* Load query */
-    val query = RSA.test_query
+    val query = RDFoxUtil.parseQuery(
+      "SELECT ?X WHERE {?X ?Y ?Z}"
+    )
 
     /* Compute the filtering program from the given query */
     val filter = ontology.filteringProgram(query)
diff --git a/src/main/scala/rsacomb/RDFoxUtil.scala b/src/main/scala/rsacomb/RDFoxUtil.scala
index d5a4dbb..b523d4e 100644
--- a/src/main/scala/rsacomb/RDFoxUtil.scala
+++ b/src/main/scala/rsacomb/RDFoxUtil.scala
@@ -2,13 +2,16 @@ package rsacomb
 
 /* Java imports */
 import java.util.HashMap
+import java.io.ByteArrayInputStream
 import tech.oxfordsemantic.jrdfox.Prefixes
-import tech.oxfordsemantic.jrdfox.logic.IRI
+import tech.oxfordsemantic.jrdfox.logic.{IRI, Query}
 import tech.oxfordsemantic.jrdfox.client.{
   ConnectionFactory,
   ServerConnection,
   DataStoreConnection
 }
+import tech.oxfordsemantic.jrdfox.formats.SPARQLParser
+
 object RDFoxUtil {
 
   implicit def owlapi2rdfox(iri: org.semanticweb.owlapi.model.IRI): IRI = {
@@ -41,6 +44,14 @@ object RDFoxUtil {
     (server, data)
   }
 
+  def parseQuery(query: String): Query = {
+    val parser = new SPARQLParser(
+      RSA.Prefixes,
+      new ByteArrayInputStream(query.getBytes())
+    )
+    parser.parseSingleQuery()
+  }
+
   def submitQuery(
       data: DataStoreConnection,
       prefixes: Prefixes,
diff --git a/src/main/scala/rsacomb/RSA.scala b/src/main/scala/rsacomb/RSA.scala
index 9125f9f..edabc6a 100644
--- a/src/main/scala/rsacomb/RSA.scala
+++ b/src/main/scala/rsacomb/RSA.scala
@@ -4,6 +4,7 @@ package rsacomb
 import java.io.File
 import java.util.Map
 
+import tech.oxfordsemantic.jrdfox.formats.SPARQLParser
 import tech.oxfordsemantic.jrdfox.Prefixes
 import tech.oxfordsemantic.jrdfox.logic.IRI
 import org.semanticweb.owlapi.apibinding.OWLManager
@@ -38,18 +39,6 @@ object RSA extends RSAOntology {
     Variable.create(f"I$counter%03d")
   }
 
-  val varX = Variable.create("X")
-  val varY = Variable.create("Y")
-  val varZ = Variable.create("Z")
-  val testAnswerVars = List[Variable](varX, varY, varZ).asJava;
-  val testFormula: Formula =
-    Conjunction.create(
-      Atom.rdf(varX, IRI.TOP_OBJECT_PROPERTY, varY),
-      Atom.rdf(varY, IRI.TOP_OBJECT_PROPERTY, varZ)
-    )
-  val test_query =
-    Query.create(QueryType.SELECT, false, testAnswerVars, testFormula)
-
   def internal(name: Any): IRI =
     IRI.create(
       Prefixes.getPrefixIRIsByPrefixName.get("internal:").getIRI