Add logging output (1.4.2 & 1.4.3)

ass1-doc/src/main/java/dst/ass1/doc/impl/DocumentQuery.java

@@ -37,6 +37,9 @@ public class DocumentQuery implements IDocumentQuery {
 
         List<Long> result = new ArrayList<>();
 
+        System.out.printf("Searching for locations within %sm of longitude %s and latitude %s%n",
+                                                            radius, longitude, latitude);
+
         MongoCursor<Document> cursor = collection.find(
                 Filters.and(
                         Filters.regex(M_LOCATION_NAME, ".*" + name + ".*"),
@@ -45,12 +48,20 @@ public class DocumentQuery implements IDocumentQuery {
         ).projection(Projections.include(I_LOCATION)).iterator();
 
         try {
-            while (cursor.hasNext())
+            while (cursor.hasNext()) {
-                result.add(cursor.next().getLong(I_LOCATION));
+                Document next = cursor.next();
+                System.out.printf("Adding location with id %s to results%n", next.getLong("location_id"));
+                result.add(next.getLong(I_LOCATION));
+            }
         } finally {
             cursor.close();
         }
 
+        if (result.isEmpty())
+            System.out.println("No locations with the given criteria found!");
+        else
+            System.out.println("Final result list: " + result.toString());
+
         return result;
     }
 
@@ -77,12 +88,20 @@ public class DocumentQuery implements IDocumentQuery {
 
         try {
             while (cursor.hasNext()) {
-                result.add(cursor.next());
+                Document next = cursor.next();
+                System.out.printf("Adding category %s with value %s to results%n",
+                                next.getString("_id"), next.getDouble("value"));
+                result.add(next);
             }
         } finally {
             cursor.close();
         }
 
+        if (result.isEmpty())
+            System.out.println("No categories found for type == 'place'!");
+        else
+            System.out.println("Final result list: " + result.toString());
+
         return result;
     }
 }