adding blank node factory to ValueFactory

Author: prbblrypier

src/main/java/fr/inria/corese/core/next/impl/temp/CoreseAdaptedValueFactory.java

@@ -14,11 +14,15 @@
 import java.time.temporal.TemporalAccessor;
 import java.time.temporal.TemporalAmount;
 import java.util.Date;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.atomic.AtomicLong;
 
 public class CoreseAdaptedValueFactory implements ValueFactory {
 
     private static Logger logger = LoggerFactory.getLogger(CoreseAdaptedValueFactory.class);
 
+    private final AtomicLong nodeID = new AtomicLong(ThreadLocalRandom.current().nextLong());
+
     public CoreseAdaptedValueFactory() {
     }
 
@@ -34,12 +38,12 @@ public IRI createIRI(String namespace, String localName) {
 
     @Override
     public BNode createBNode() {
-        return null;
+        return new CoreseBNode(Long.toHexString(Math.abs(nodeID.getAndIncrement())));
     }
 
     @Override
     public BNode createBNode(String nodeID) {
-        return null;
+        return new CoreseBNode(nodeID);
     }
 
     @Override

src/test/java/fr/inria/corese/core/next/api/model/ValueFactoryTest.java

@@ -1,5 +1,6 @@
 package fr.inria.corese.core.next.api.model;
 
+import fr.inria.corese.core.next.api.BNode;
 import fr.inria.corese.core.next.api.Literal;
 import fr.inria.corese.core.next.api.ValueFactory;
 import fr.inria.corese.core.next.impl.exception.IncorrectFormatException;
@@ -40,6 +41,14 @@ public void testCreateIRI() {
 
     @Test
     public void testCreateBNode() {
+        String nodeId = "corese123";
+        BNode nodesCorese123 = this.valueFactory.createBNode(nodeId);
+        BNode nodesCoreseRandom = this.valueFactory.createBNode();
+
+        assertNotNull(nodesCorese123);
+        assertNotNull(nodesCoreseRandom);
+        assertNotNull(nodesCoreseRandom.getID());
+        assertEquals(nodesCorese123.getID(), "corese123");
     }
 
     @Test