api provides info about authors, creation date and modification dates

rest-api/src/main/java/lcsb/mapviewer/api/BaseRestImpl.java

@@ -4,7 +4,9 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
@@ -86,6 +88,8 @@ public abstract class BaseRestImpl {
 
   private Transformer mathMlTransformer;
 
+  private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
   protected Map<String, Object> okStatus() {
     Map<String, Object> result = new TreeMap<>();
     return result;
@@ -467,4 +471,19 @@ public abstract class BaseRestImpl {
     return annotatorParams;
   }
 
+  public String prepareDate(Calendar creationDate) {
+    if (creationDate == null) {
+      return null;
+    }
+    return dateFormat.format(creationDate.getTime());
+  }
+
+  public List<String> prepareDates(List<Calendar> modificationDates) {
+    List<String> result = new ArrayList<>();
+    for (Calendar calendar : modificationDates) {
+      result.add(prepareDate(calendar));
+    }
+    return result;
+  }
+
 }

rest-api/src/main/java/lcsb/mapviewer/api/projects/models/ModelRestImpl.java

@@ -113,6 +113,9 @@ public class ModelRestImpl extends BaseRestImpl {
       result.put("maxZoom", Configuration.MIN_ZOOM_LEVEL + submodel.getZoomLevels());
       result.put("submodelType", SubmodelType.UNKNOWN);
       result.put("references", createAnnotations(submodel.getMiriamData()));
+      result.put("authors", submodel.getAuthors());
+      result.put("creationDate", super.prepareDate(submodel.getCreationDate()));
+      result.put("modificationDates", super.prepareDates(submodel.getModificationDates()));
       return result;
     }
   }