From f0f192c654010e2038a156add1fd777ec5f8a370 Mon Sep 17 00:00:00 2001
From: Nathan Reese <reese.nathan@gmail.com>
Date: Wed, 20 Jan 2021 11:25:48 -0700
Subject: [PATCH] [Maps] fix Maps should display better error message instead
 of EsError when there is no data for tracks data source (#88847)

---
 .../es_geo_line_source/es_geo_line_source.tsx | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/x-pack/plugins/maps/public/classes/sources/es_geo_line_source/es_geo_line_source.tsx b/x-pack/plugins/maps/public/classes/sources/es_geo_line_source/es_geo_line_source.tsx
index 3693f55586b3..9c851dcedb3f 100644
--- a/x-pack/plugins/maps/public/classes/sources/es_geo_line_source/es_geo_line_source.tsx
+++ b/x-pack/plugins/maps/public/classes/sources/es_geo_line_source/es_geo_line_source.tsx
@@ -9,7 +9,12 @@ import React from 'react';
 
 import { GeoJsonProperties } from 'geojson';
 import { i18n } from '@kbn/i18n';
-import { FIELD_ORIGIN, SOURCE_TYPES, VECTOR_SHAPE_TYPE } from '../../../../common/constants';
+import {
+  EMPTY_FEATURE_COLLECTION,
+  FIELD_ORIGIN,
+  SOURCE_TYPES,
+  VECTOR_SHAPE_TYPE,
+} from '../../../../common/constants';
 import { getField, addFieldToDSL } from '../../../../common/elasticsearch_util';
 import {
   ESGeoLineSourceDescriptor,
@@ -216,6 +221,18 @@ export class ESGeoLineSource extends AbstractESAggSource {
     );
     const totalEntities = _.get(entityResp, 'aggregations.totalEntities.value', 0);
     const areEntitiesTrimmed = entityBuckets.length >= MAX_TRACKS;
+    if (totalEntities === 0) {
+      return {
+        data: EMPTY_FEATURE_COLLECTION,
+        meta: {
+          areResultsTrimmed: false,
+          areEntitiesTrimmed: false,
+          entityCount: 0,
+          numTrimmedTracks: 0,
+          totalEntities: 0,
+        } as ESGeoLineSourceResponseMeta,
+      };
+    }
 
     //
     // Fetch tracks