Update data layer source name

Signed-off-by: Junqiu Lei <[email protected]>

Author: junqiu-lei

CHANGELOG.md

@@ -18,5 +18,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Bug Fixes
 ### Infrastructure
 ### Documentation
+* Update data layer source name [#588](https://github.com/opensearch-project/dashboards-maps/pull/588)
 ### Maintenance
 ### Refactoring

cypress/e2e/documentsLayer.cy.js

@@ -24,7 +24,7 @@ describe('Documents layer', () => {
     cy.contains('Create map').click();
     cy.get("button[data-test-subj='addLayerButton']").click();
     cy.contains('Documents').click();
-    cy.contains('Select data source', { timeout: 60000 }).click({ force: true });
+    cy.contains('Select index pattern', { timeout: 60000 }).click({ force: true });
     cy.contains('opensearch_dashboards_sample_data_flights').click();
     cy.contains('Select data field', { timeout: 60000 }).click({ force: true });
     cy.contains('DestLocation').click();

public/components/layer_config/documents_config/document_layer_source.tsx

@@ -264,7 +264,7 @@ export const DocumentLayerSource = ({
             <EuiFlexGrid columns={1}>
               <EuiFlexItem>
                 <EuiFormRow
-                  label="Data source"
+                  label="Index pattern"
                   isInvalid={!indexPattern}
                   error={errorsMap.datasource}
                   data-test-subj={'indexPatternSelect'}
@@ -273,7 +273,7 @@ export const DocumentLayerSource = ({
                   <IndexPatternSelect
                     savedObjectsClient={savedObjectsClient}
                     placeholder={i18n.translate('documentLayer.selectDataSourcePlaceholder', {
-                      defaultMessage: 'Select data source',
+                      defaultMessage: 'Select index pattern',
                     })}
                     indexPatternId={indexPattern?.id || ''}
                     onChange={async (newIndexPatternId: any) => {