[Backport 2.x] fix: fixed unsupported language issue due to cached language in localStorage

changelogs/fragments/8674.yml

@@ -0,0 +1,2 @@
+fix:
+- Fixed unsupported language is used from localStorage ([#8674](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/8674))

src/plugins/data/public/query/query_string/query_string_manager.ts

@@ -225,13 +225,27 @@
     };
   };
 
-  private getDefaultLanguage() {
-    return (
-      this.storage.get('userQueryLanguage') ||
-      this.uiSettings.get(UI_SETTINGS.SEARCH_QUERY_LANGUAGE)
+  private isLanguageSupported(languageId: string) {
+    const currentAppId = this.getCurrentAppId();
+    if (!currentAppId) {
+      return false;
+    }
+
+    return containsWildcardOrValue(
+      this.languageService.getLanguage(languageId)?.supportedAppNames,
+      currentAppId
     );
   }
 
+  private getDefaultLanguage() {
+    const lastUsedLanguage = this.storage.get('userQueryLanguage');
+    if (lastUsedLanguage && this.isLanguageSupported(lastUsedLanguage)) {
+      return lastUsedLanguage;
+    }
+
+    return this.uiSettings.get(UI_SETTINGS.SEARCH_QUERY_LANGUAGE);
+  }
+
   private getCurrentAppId = () => {
     let appId;
     try {