fix(i3s-scene-parser): provide unsupported layer types in the excepti…

…on (#2863)

modules/i3s/src/index.ts

@@ -51,4 +51,5 @@ export {ArcGISWebSceneLoader} from './arcgis-webscene-loader';
 
 export type {SLPKArchive} from './lib/parsers/parse-slpk/slpk-archieve';
 export {parseSLPKArchive} from './lib/parsers/parse-slpk/parse-slpk';
+export {LayerError} from './lib/parsers/parse-arcgis-webscene';
 export {customizeColors} from './lib/utils/customize-colors';

modules/i3s/src/lib/parsers/parse-arcgis-webscene.ts

@@ -26,6 +26,22 @@ const SUPPORTED_LAYERS_TYPES = [
 const NO_AVAILABLE_SUPPORTED_LAYERS_ERROR = 'NO_AVAILABLE_SUPPORTED_LAYERS_ERROR';
 const NOT_SUPPORTED_CRS_ERROR = 'NOT_SUPPORTED_CRS_ERROR';
 
+/**
+ * Provides additional information in the exception Error object, e.g. unsupported layer types.
+ * @param message - message used in the Error object
+ * @param details - additional information that can be used to handle the exception.
+ * @example throw new LayerError(NO_AVAILABLE_SUPPORTED_LAYERS_ERROR, unsupportedLayers);
+ */
+export class LayerError extends Error {
+  constructor(
+    message: string,
+    public details: unknown
+  ) {
+    super(message);
+    this.name = 'LayerError';
+  }
+}
+
 /**
  * Parses ArcGIS WebScene
  * @param data
@@ -36,7 +52,7 @@ export async function parseWebscene(data: ArrayBuffer): Promise<ArcGISWebSceneDa
   const {layers, unsupportedLayers} = await parseOperationalLayers(operationalLayers, true);
 
   if (!layers.length) {
-    throw new Error(NO_AVAILABLE_SUPPORTED_LAYERS_ERROR);
+    throw new LayerError(NO_AVAILABLE_SUPPORTED_LAYERS_ERROR, unsupportedLayers);
   }
 
   return {