Add FeatureError with severity level

Author: garrettjstevens

packages/core/data_adapters/BaseAdapter.ts

@@ -3,6 +3,7 @@ import { toArray } from 'rxjs/operators'
 import { isStateTreeNode, getSnapshot } from 'mobx-state-tree'
 import { ObservableCreate } from '../util/rxjs'
 import { checkAbortSignal } from '../util'
+import { FeatureError } from '../util/types'
 import { Feature } from '../util/simpleFeature'
 import {
   readConfObject,
@@ -169,8 +170,9 @@ export abstract class BaseFeatureDataAdapter extends BaseAdapter {
       checkAbortSignal(opts.signal)
       if (!hasData) {
         observer.error(
-          new Error(
+          new FeatureError(
             `refName "${region.refName}" not found. You may need to configure refName aliases.`,
+            'info',
           ),
         )
       } else {

packages/core/util/types/index.ts

@@ -400,6 +400,20 @@ export function isRetryException(exception: Error): boolean {
   )
 }
 
+export class FeatureError extends Error {
+  constructor(
+    public message: string,
+    public severity: 'error' | 'warning' | 'info' = 'error',
+  ) {
+    super(message)
+    this.name = 'FeatureError'
+  }
+}
+
+export function isFeatureError(error: Error): error is FeatureError {
+  return error.name === 'FeatureError'
+}
+
 export interface BlobLocation extends SnapshotIn<typeof MUBlobLocation> {}
 
 export type FileLocation = LocalPathLocation | UriLocation | BlobLocation

plugins/linear-genome-view/src/BaseLinearDisplay/components/ServerSideRenderedBlockContent.tsx

@@ -4,6 +4,7 @@ import { makeStyles } from 'tss-react/mui'
 import { observer } from 'mobx-react'
 import { getParent } from 'mobx-state-tree'
 import { getParentRenderProps } from '@jbrowse/core/util/tracks'
+import { isFeatureError } from '@jbrowse/core/util/types'
 import RefreshIcon from '@mui/icons-material/Refresh'
 
 const useStyles = makeStyles()(theme => ({
@@ -118,9 +119,9 @@ function BlockError({
   return (
     <div className={classes.blockMessage}>
       <Alert
-        severity="error"
+        severity={isFeatureError(error) ? error.severity : 'error'}
         action={
-          reload ? (
+          !isFeatureError(error) || error.severity === 'error' ? (
             <Button
               data-testid="reload_button"
               onClick={reload}