Fixes for ability to not draw arrows pointing to an empty box

shacl-diagram/src/main/java/fr/sparna/rdf/shacl/diagram/Main.java

@@ -37,8 +37,8 @@ public static void main(String[] args) throws Exception {
 		}
 
 
-		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(true, false);
-		String output = writer.writeInPlantUml(shaclGraph,owlGraph,outExpandDiagram);
+		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(true, false, outExpandDiagram);
+		String output = writer.writeInPlantUml(shaclGraph,owlGraph);
 
 		String outputDirectory ="C:/Temp" ; //args[1];
 

shacl-diagram/src/main/java/fr/sparna/rdf/shacl/diagram/PlantUmlRenderer.java

@@ -232,14 +232,14 @@ public String renderDefault(PlantUmlProperty property, String boxName) {
 		return output;
 	}
 
-	public String renderNodeShape(PlantUmlBox box, List<PlantUmlBox> GlobalBox, boolean outExpandDiagram) {
+	public String renderNodeShape(PlantUmlBox box, List<PlantUmlBox> GlobalBox, boolean avoidArrowsToEmptyBoxes) {
 		// String declaration = "Class"+"
 		// "+"\""+box.getNameshape()+"\""+((box.getNametargetclass() != null)?"
 		// "+"<"+box.getNametargetclass()+">":"");
 		String declaration = "";
 		// Array for control inverse
 
-		if (outExpandDiagram) {
+		if (avoidArrowsToEmptyBoxes) {
 			if (box.getProperties().size() > 0) {
 
 				declaration = "Class" + " " + "\"" + box.getLabel() + "\"";

shacl-diagram/src/main/java/fr/sparna/rdf/shacl/diagram/ShaclPlantUmlWriter.java

@@ -6,25 +6,29 @@
 import java.util.stream.Collectors;
 
 import org.apache.jena.rdf.model.Model;
-import org.apache.jena.rdf.model.Property;
 import org.apache.jena.rdf.model.RDFNode;
 import org.apache.jena.rdf.model.Resource;
-import org.apache.jena.vocabulary.OWL;
 import org.apache.jena.vocabulary.RDF;
 import org.topbraid.shacl.vocabulary.SH;
 
 public class ShaclPlantUmlWriter {
 
 	protected boolean includeSubclassLinks = true;
 	protected boolean generateAnchorHyperlink = false;
+	protected boolean avoidArrowsToEmptyBoxes = true;
 
-	public ShaclPlantUmlWriter(boolean includeSubclassLinks, boolean generateAnchorHyperlink) {
+	public ShaclPlantUmlWriter(
+			boolean includeSubclassLinks,
+			boolean generateAnchorHyperlink,
+			boolean avoidArrowsToEmptyBoxes
+	) {
 		super();
 		this.includeSubclassLinks = includeSubclassLinks;
 		this.generateAnchorHyperlink = generateAnchorHyperlink;
+		this.avoidArrowsToEmptyBoxes = avoidArrowsToEmptyBoxes;
 	}
 
-	public String writeInPlantUml(Model shaclGraph, Model owlGraph, boolean outExpandDiagram) {
+	public String writeInPlantUml(Model shaclGraph, Model owlGraph) {
 
 		// read everything typed as NodeShape
 		List<Resource> nodeShapes = shaclGraph.listResourcesWithProperty(RDF.type, SH.NodeShape).toList();
@@ -95,7 +99,7 @@ public String writeInPlantUml(Model shaclGraph, Model owlGraph, boolean outExpan
 			}
 
 			for (PlantUmlBox plantUmlBox : plantUmlBoxes.stream().filter(b -> b.getPackageName().equals(aPackage)).collect(Collectors.toList())) {
-				sourceuml.append(renderer.renderNodeShape(plantUmlBox,plantUmlBoxes,outExpandDiagram));
+				sourceuml.append(renderer.renderNodeShape(plantUmlBox,plantUmlBoxes,this.avoidArrowsToEmptyBoxes));
 			}
 
 			if(!aPackage.equals("")) {

shacl-doc/src/main/java/fr/sparna/rdf/shacl/doc/PlantUmlSourceGenerator.java

@@ -9,18 +9,24 @@
 
 public class PlantUmlSourceGenerator {
 
-	public String generatePlantUmlDiagram(Model shapesModel, Model owlModel, boolean subclasssOf,boolean Classlink, boolean outExpandDiagram) throws IOException {
+	public String generatePlantUmlDiagram(
+			Model shapesModel,
+			Model owlModel,
+			boolean subclasssOf,
+			boolean Classlink,
+			boolean avoidArrowsToEmptyBoxes
+	) throws IOException {
 
 		// draw - without subclasses links
 		// set first parameter to true to draw subclassOf links
-		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(subclasssOf, Classlink);
+		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(subclasssOf, Classlink, avoidArrowsToEmptyBoxes);
 		Model finalModel = ModelFactory.createDefaultModel();
 		finalModel.add(shapesModel);
 		if(owlModel != null) {
 			finalModel.add(owlModel);
 		}
 		//String plantUmlString = writer.writeInPlantUml(finalModel,,outExpandDiagram);
-		String plantUmlString = writer.writeInPlantUml(shapesModel,owlModel,outExpandDiagram);
+		String plantUmlString = writer.writeInPlantUml(shapesModel,owlModel);
 		return plantUmlString;
 	}
 

shacl-doc/src/main/java/fr/sparna/rdf/shacl/doc/SVGGenerator.java

@@ -14,18 +14,18 @@
 
 public class SVGGenerator {
 
-	public String generateSvgDiagram(Model shapesModel, Model owlModel,boolean outExpandDiagram) throws IOException {
+	public String generateSvgDiagram(Model shapesModel, Model owlModel,boolean avoidArrowsToEmptyBoxes) throws IOException {
 
 		// draw - without subclasses links
 		// set first parameter to true to draw subclassOf links
-		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(true, true);
+		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(true, true, avoidArrowsToEmptyBoxes);
 		Model finalModel = ModelFactory.createDefaultModel();
 		finalModel.add(shapesModel);
 		if(owlModel != null) {
 			finalModel.add(owlModel);
 		}
 		//String plantUmlString = writer.writeInPlantUml(finalModel);
-		String plantUmlString = writer.writeInPlantUml(shapesModel,owlModel,outExpandDiagram);
+		String plantUmlString = writer.writeInPlantUml(shapesModel,owlModel);
 
 		// System.out.println(plantUmlString);
 

shacl-play-app/src/main/java/fr/sparna/rdf/shacl/app/draw/Draw.java

@@ -33,9 +33,9 @@ public void execute(Object args) throws Exception {
 		InputModelReader.populateModel(shapesModel, a.getInput(), null);
 
 		// draw
-		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(a.isIncludeSubclasses(), false);
+		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(a.isIncludeSubclasses(), false, true);
 		// TODO : add parameter with OWL file
-		String plantUmlString = writer.writeInPlantUml(shapesModel, ModelFactory.createDefaultModel(), false);
+		String plantUmlString = writer.writeInPlantUml(shapesModel, ModelFactory.createDefaultModel());
 
 		for(File outputFile : a.getOutput()) {
 

shacl-play/src/main/java/fr/sparna/rdf/shacl/shaclplay/doc/DocController.java

@@ -167,7 +167,8 @@ protected void doOutputDoc(
 		ShapesDocumentationReaderIfc reader = new ShapesDocumentationModelReader(true);
 		ShapesDocumentation doc = reader.readShapesDocumentation(
 				shapesModel,
-				null,
+				// OWL graph
+				ModelFactory.createDefaultModel(),
 				"en",
 				filename,
 				false

shacl-play/src/main/java/fr/sparna/rdf/shacl/shaclplay/draw/DrawController.java

@@ -185,14 +185,20 @@ protected void doOutputDiagram(
 			FORMAT format,
 			HttpServletResponse response
 	) throws IOException {
-		// includes the subClassOf links in the generated diagram
-		// don't generate hyperlinks
-		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(true, false);
+
+
+		ShaclPlantUmlWriter writer = new ShaclPlantUmlWriter(
+				// includes the subClassOf links in the generated diagram
+				true,
+				// don't generate hyperlinks
+				false,
+				// avoid arrows to empty boxes
+				true);
 		String plantumlString = writer.writeInPlantUml(
 				shapesModel,
 				// OWL Model
-				ModelFactory.createDefaultModel(),
-				false);
+				ModelFactory.createDefaultModel()
+		);
 
 		response.setContentType(format.mimeType);
 		response.setHeader("Content-Disposition", "inline; filename=\""+filename+"."+format.extension+"\"");