Add fileSuccess callback support

Refs: #7621

@@ -163,6 +163,9 @@ define(function(require) {
                     flowFile.flowObj.ownerContent.set('statusId', 'CTNT_AVAILABLE');
                     flowFile.flowObj.ownerContent.save(function() {
                         console.log('MARKED', flowFile.flowObj.ownerContent, ' AVAILABLE');
+                        if (this.model.get('handlers') && this.model.get('handlers').fileSuccess !== undefined) {
+                            this.model.get('handlers').fileSuccess(flowFile);
+                        }
                     });
                 }
             },