invoke callback in onClose method

geomesa-fs/geomesa-fs-storage/geomesa-fs-storage-parquet/src/main/scala/org/locationtech/geomesa/fs/storage/parquet/io/SimpleFeatureWriteSupport.scala

@@ -59,7 +59,11 @@ class SimpleFeatureWriteSupport(callback: (Envelope, Long) => Unit) extends Writ
 
     def getCount: Long = count
 
-    override protected def onClose(bounds: Envelope, count: Long): Unit = {}
+    // Invoke the callback function for adding bounds to the storage metadata partition
+    override protected def onClose(bounds: Envelope, count: Long): Unit = {
+      println("MultipleGeometriesObserver onClose")
+      callback(bounds, count)
+    }
   }
 
   private val observer = new MultipleGeometriesObserver
@@ -84,10 +88,7 @@ class SimpleFeatureWriteSupport(callback: (Envelope, Long) => Unit) extends Writ
   override def finalizeWrite(): FinalizedWriteContext = {
     // Get the bounding boxes that span each geometry type
     val bboxes = observer.getBoundingBoxes
-
-    for (bbox <- bboxes) {
-      callback(bbox, observer.getCount)
-    }
+    observer.close()
 
     // If the SFT has no geometries, then there's no need to create GeoParquet metadata
     if (bboxes.isEmpty) {