added type predicates for entities

Signed-off-by: Alex Rybchenko <arybchenko@box.com>

plugins/catalog/src/components/EntitySwitch/conditions.ts

@@ -14,7 +14,17 @@
  * limitations under the License.
  */
 
-import { Entity, ComponentEntity } from '@backstage/catalog-model';
+import {
+  ApiEntity,
+  ComponentEntity,
+  DomainEntity,
+  Entity,
+  GroupEntity,
+  LocationEntity,
+  ResourceEntity,
+  SystemEntity,
+  UserEntity,
+} from '@backstage/catalog-model';
 
 function strCmp(a: string | undefined, b: string | undefined): boolean {
   return Boolean(
@@ -57,3 +67,52 @@ export function isComponentType(types: string | string[]) {
 export function isNamespace(namespaces: string | string[]) {
   return (entity: Entity) => strCmpAll(entity.metadata?.namespace, namespaces);
 }
+
+/**
+ * @public
+ */
+export function isApiEntity(entity: Entity): entity is ApiEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'API';
+}
+/**
+ * @public
+ */
+export function isComponentEntity(entity: Entity): entity is ComponentEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'COMPONENT';
+}
+/**
+ * @public
+ */
+export function isDomainEntity(entity: Entity): entity is DomainEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'DOMAIN';
+}
+/**
+ * @public
+ */
+export function isGroupEntity(entity: Entity): entity is GroupEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'GROUP';
+}
+/**
+ * @public
+ */
+export function isLocationEntity(entity: Entity): entity is LocationEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'LOCATION';
+}
+/**
+ * @public
+ */
+export function isResourceEntity(entity: Entity): entity is ResourceEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'RESOURCE';
+}
+/**
+ * @public
+ */
+export function isSystemEntity(entity: Entity): entity is SystemEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'SYSTEM';
+}
+/**
+ * @public
+ */
+export function isUserEntity(entity: Entity): entity is UserEntity {
+  return entity.kind.toLocaleUpperCase('en-US') === 'USER';
+}

plugins/catalog/src/components/EntitySwitch/index.ts

@@ -16,4 +16,4 @@
 
 export { EntitySwitch } from './EntitySwitch';
 export type { EntitySwitchProps, EntitySwitchCaseProps } from './EntitySwitch';
-export { isKind, isNamespace, isComponentType } from './conditions';
+export * from './conditions';