From eefcd8ed9cfd7df1280e40d2efa9abb9721f0f67 Mon Sep 17 00:00:00 2001
From: Claudenir Fonseca <claudenirmf@gmail.com>
Date: Sat, 20 Mar 2021 20:30:34 +0100
Subject: [PATCH] Bugfix class order serialization

---
 .../inf/ontouml/vp/model/ontouml/model/Class.java    | 12 ++++++++++++
 .../model/ontouml/serialization/ClassSerializer.java |  2 +-
 .../ontouml/vp/model/ontouml2vp/IClassLoader.java    |  2 +-
 .../ontouml/vp/model/vp2ontouml/IClassAdapter.java   | 10 ++++++++--
 4 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/model/Class.java b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/model/Class.java
index 1eb4e204..f54708da 100644
--- a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/model/Class.java
+++ b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/model/Class.java
@@ -14,6 +14,10 @@
 @JsonSerialize(using = ClassSerializer.class)
 @JsonDeserialize(using = ClassDeserializer.class)
 public final class Class extends Classifier<Class, ClassStereotype> {
+
+  public static Integer ORDERLESS = Integer.MAX_VALUE;
+  public static String ORDERLESS_STRING = "*";
+
   protected Boolean isExtensional;
   protected Boolean isPowertype;
   protected Integer order;
@@ -86,6 +90,14 @@ public void setOrder(Integer value) {
     order = value;
   }
 
+  public Optional<String> getOrderAsString() {
+    if (order == null) return Optional.empty();
+    else
+      return ORDERLESS.equals(order)
+          ? Optional.of(ORDERLESS_STRING)
+          : Optional.of(order.toString());
+  }
+
   public Set<Nature> getRestrictedTo() {
     return restrictedTo;
   }
diff --git a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/serialization/ClassSerializer.java b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/serialization/ClassSerializer.java
index c8e35e7f..10f40851 100644
--- a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/serialization/ClassSerializer.java
+++ b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml/serialization/ClassSerializer.java
@@ -22,7 +22,7 @@ static void serializeFields(Class clazz, JsonGenerator jsonGen) throws IOExcepti
     Serializer.writeNullableBooleanField(
         "isExtensional", clazz.isExtensional().orElse(null), jsonGen);
     Serializer.writeNullableBooleanField("isPowertype", clazz.isPowertype().orElse(null), jsonGen);
-    Serializer.writeNullableNumberField("order", clazz.getOrder().orElse(null), jsonGen);
+    Serializer.writeNullableStringField("order", clazz.getOrderAsString().orElse(null), jsonGen);
     Serializer.writeNullableArrayField("literals", clazz.getLiterals(), jsonGen);
 
     if (!clazz.getRestrictedTo().isEmpty()) {
diff --git a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml2vp/IClassLoader.java b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml2vp/IClassLoader.java
index c7dcb0d3..d2528962 100644
--- a/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml2vp/IClassLoader.java
+++ b/src/main/java/it/unibz/inf/ontouml/vp/model/ontouml2vp/IClassLoader.java
@@ -32,7 +32,7 @@ public static IClass importElement(Class fromClass) {
 
     fromClass.isExtensional().ifPresent(aBoolean -> setIsExtensional(toClass, aBoolean));
     fromClass.isPowertype().ifPresent(aBoolean -> setIsPowertype(toClass, aBoolean));
-    fromClass.getOrder().ifPresent(anInteger -> setOrder(toClass, anInteger.toString()));
+    fromClass.getOrderAsString().ifPresent(aString -> setOrder(toClass, aString));
 
     String restrictedTo = getRestrictedToString(fromClass);
     setRestrictedTo(toClass, restrictedTo);
diff --git a/src/main/java/it/unibz/inf/ontouml/vp/model/vp2ontouml/IClassAdapter.java b/src/main/java/it/unibz/inf/ontouml/vp/model/vp2ontouml/IClassAdapter.java
index 9c11dd48..15a53065 100644
--- a/src/main/java/it/unibz/inf/ontouml/vp/model/vp2ontouml/IClassAdapter.java
+++ b/src/main/java/it/unibz/inf/ontouml/vp/model/vp2ontouml/IClassAdapter.java
@@ -1,6 +1,7 @@
 package it.unibz.inf.ontouml.vp.model.vp2ontouml;
 
 import com.vp.plugin.model.*;
+import it.unibz.inf.ontouml.vp.model.ontouml.model.Class;
 import it.unibz.inf.ontouml.vp.utils.StereotypesManager;
 
 public class IClassAdapter implements IAdapter {
@@ -82,9 +83,14 @@ public Integer getOrder() {
     Integer order = null;
 
     try {
-      order = value instanceof String ? Integer.parseInt((String) value) : null;
+      if (value instanceof String) {
+        order =
+            Class.ORDERLESS_STRING.equals(value)
+                ? Class.ORDERLESS
+                : Integer.parseInt((String) value);
+      }
     } catch (NumberFormatException ignored) {
-      System.out.println("Order is is an integer!");
+      System.out.println("Order cannot be converted to an integer or orderless!");
     }
 
     return order;