#4 added num distinct rdf nodes property

src/main/java/lodanalysis/model/statements/NumDistinctRDFNodes.java

@@ -0,0 +1,47 @@
+package lodanalysis.model.statements;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.commons.io.FileUtils;
+
+import lodanalysis.Paths;
+import lodanalysis.model.CreateModel;
+import lodanalysis.model.CreateModelStatement;
+import lodanalysis.model.CreateModel.Namespace;
+
+import com.hp.hpl.jena.datatypes.xsd.XSDDatatype;
+
+
+public class NumDistinctRDFNodes extends CreateModelStatement {
+
+
+	public NumDistinctRDFNodes(CreateModel factory) {
+		super(factory);
+	}
+
+	@Override
+	public void createDescription() throws IOException {
+	    int bnodes = 0;
+	    try {
+	        bnodes = countLines(new File(dir, Paths.BNODE_COUNTS));
+	    } catch (Exception IOException) {
+	        //just skip
+	    }
+	    int literals = 0;
+	    try {
+	        literals = Integer.parseInt(FileUtils.readFileToString(new File(dir, Paths.DISTINCT_LITERALS)));
+	    } catch(Exception e) {
+	        //just skip
+	    }
+	    int uris = 0;
+	    try {
+            uris = Integer.parseInt(FileUtils.readFileToString(new File(dir, Paths.DISTINCT_URIS)));
+        } catch(Exception e) {
+            //just skip
+        }
+
+		doc.addProperty(getProp(Namespace.LLM, "distinctRDFNodes"), Integer.toString(bnodes + literals + uris), XSDDatatype.XSDlong);
+	}
+
+}