add getVisibleTypes API to SO type registry (#70559)

* add getVisibleTypes API

* doc nit

* fix mocking in tests

docs/development/core/server/kibana-plugin-core-server.savedobjecttyperegistry.getalltypes.md

@@ -4,7 +4,9 @@
 
 ## SavedObjectTypeRegistry.getAllTypes() method
 
-Return all [types](./kibana-plugin-core-server.savedobjectstype.md) currently registered.
+Return all [types](./kibana-plugin-core-server.savedobjectstype.md) currently registered, including the hidden ones.
+
+To only get the visible types (which is the most common use case), use `getVisibleTypes` instead.
 
 <b>Signature:</b>
 

docs/development/core/server/kibana-plugin-core-server.savedobjecttyperegistry.getvisibletypes.md

@@ -0,0 +1,19 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [SavedObjectTypeRegistry](./kibana-plugin-core-server.savedobjecttyperegistry.md) &gt; [getVisibleTypes](./kibana-plugin-core-server.savedobjecttyperegistry.getvisibletypes.md)
+
+## SavedObjectTypeRegistry.getVisibleTypes() method
+
+Returns all visible [types](./kibana-plugin-core-server.savedobjectstype.md)<!-- -->.
+
+A visible type is a type that doesn't explicitly define `hidden=true` during registration.
+
+<b>Signature:</b>
+
+```typescript
+getVisibleTypes(): SavedObjectsType[];
+```
+<b>Returns:</b>
+
+`SavedObjectsType[]`
+

docs/development/core/server/kibana-plugin-core-server.savedobjecttyperegistry.md

@@ -16,10 +16,11 @@ export declare class SavedObjectTypeRegistry
 
 |  Method | Modifiers | Description |
 |  --- | --- | --- |
-|  [getAllTypes()](./kibana-plugin-core-server.savedobjecttyperegistry.getalltypes.md) |  | Return all [types](./kibana-plugin-core-server.savedobjectstype.md) currently registered. |
+|  [getAllTypes()](./kibana-plugin-core-server.savedobjecttyperegistry.getalltypes.md) |  | Return all [types](./kibana-plugin-core-server.savedobjectstype.md) currently registered, including the hidden ones.<!-- -->To only get the visible types (which is the most common use case), use <code>getVisibleTypes</code> instead. |
 |  [getImportableAndExportableTypes()](./kibana-plugin-core-server.savedobjecttyperegistry.getimportableandexportabletypes.md) |  | Return all [types](./kibana-plugin-core-server.savedobjectstype.md) currently registered that are importable/exportable. |
 |  [getIndex(type)](./kibana-plugin-core-server.savedobjecttyperegistry.getindex.md) |  | Returns the <code>indexPattern</code> property for given type, or <code>undefined</code> if the type is not registered. |
 |  [getType(type)](./kibana-plugin-core-server.savedobjecttyperegistry.gettype.md) |  | Return the [type](./kibana-plugin-core-server.savedobjectstype.md) definition for given type name. |
+|  [getVisibleTypes()](./kibana-plugin-core-server.savedobjecttyperegistry.getvisibletypes.md) |  | Returns all visible [types](./kibana-plugin-core-server.savedobjectstype.md)<!-- -->.<!-- -->A visible type is a type that doesn't explicitly define <code>hidden=true</code> during registration. |
 |  [isHidden(type)](./kibana-plugin-core-server.savedobjecttyperegistry.ishidden.md) |  | Returns the <code>hidden</code> property for given type, or <code>false</code> if the type is not registered. |
 |  [isImportableAndExportable(type)](./kibana-plugin-core-server.savedobjecttyperegistry.isimportableandexportable.md) |  | Returns the <code>management.importableAndExportable</code> property for given type, or <code>false</code> if the type is not registered or does not define a management section. |
 |  [isMultiNamespace(type)](./kibana-plugin-core-server.savedobjecttyperegistry.ismultinamespace.md) |  | Returns whether the type is multi-namespace (shareable); resolves to <code>false</code> if the type is not registered |

src/core/server/saved_objects/saved_objects_type_registry.mock.ts

@@ -25,6 +25,7 @@ const createRegistryMock = (): jest.Mocked<
   const mock = {
     registerType: jest.fn(),
     getType: jest.fn(),
+    getVisibleTypes: jest.fn(),
     getAllTypes: jest.fn(),
     getImportableAndExportableTypes: jest.fn(),
     isNamespaceAgnostic: jest.fn(),
@@ -35,6 +36,7 @@ const createRegistryMock = (): jest.Mocked<
     isImportableAndExportable: jest.fn(),
   };
 
+  mock.getVisibleTypes.mockReturnValue([]);
   mock.getAllTypes.mockReturnValue([]);
   mock.getImportableAndExportableTypes.mockReturnValue([]);
   mock.getIndex.mockReturnValue('.kibana-test');

src/core/server/saved_objects/saved_objects_type_registry.test.ts

@@ -99,10 +99,37 @@ describe('SavedObjectTypeRegistry', () => {
     });
   });
 
+  describe('#getVisibleTypes', () => {
+    it('returns only visible registered types', () => {
+      const typeA = createType({ name: 'typeA', hidden: false });
+      const typeB = createType({ name: 'typeB', hidden: true });
+      const typeC = createType({ name: 'typeC', hidden: false });
+      registry.registerType(typeA);
+      registry.registerType(typeB);
+      registry.registerType(typeC);
+
+      const registered = registry.getVisibleTypes();
+      expect(registered.length).toEqual(2);
+      expect(registered).toContainEqual(typeA);
+      expect(registered).toContainEqual(typeC);
+    });
+
+    it('does not mutate the registered types when altering the list', () => {
+      registry.registerType(createType({ name: 'typeA', hidden: false }));
+      registry.registerType(createType({ name: 'typeB', hidden: true }));
+      registry.registerType(createType({ name: 'typeC', hidden: false }));
+
+      const types = registry.getVisibleTypes();
+      types.splice(0, 2);
+
+      expect(registry.getVisibleTypes().length).toEqual(2);
+    });
+  });
+
   describe('#getAllTypes', () => {
     it('returns all registered types', () => {
       const typeA = createType({ name: 'typeA' });
-      const typeB = createType({ name: 'typeB' });
+      const typeB = createType({ name: 'typeB', hidden: true });
       const typeC = createType({ name: 'typeC' });
       registry.registerType(typeA);
       registry.registerType(typeB);

src/core/server/saved_objects/saved_objects_type_registry.ts

@@ -54,7 +54,18 @@ export class SavedObjectTypeRegistry {
   }
 
   /**
-   * Return all {@link SavedObjectsType | types} currently registered.
+   * Returns all visible {@link SavedObjectsType | types}.
+   *
+   * A visible type is a type that doesn't explicitly define `hidden=true` during registration.
+   */
+  public getVisibleTypes() {
+    return [...this.types.values()].filter((type) => !this.isHidden(type.name));
+  }
+
+  /**
+   * Return all {@link SavedObjectsType | types} currently registered, including the hidden ones.
+   *
+   * To only get the visible types (which is the most common use case), use `getVisibleTypes` instead.
    */
   public getAllTypes() {
     return [...this.types.values()];

src/core/server/server.api.md

@@ -2468,6 +2468,7 @@ export class SavedObjectTypeRegistry {
     getImportableAndExportableTypes(): SavedObjectsType[];
     getIndex(type: string): string | undefined;
     getType(type: string): SavedObjectsType | undefined;
+    getVisibleTypes(): SavedObjectsType[];
     isHidden(type: string): boolean;
     isImportableAndExportable(type: string): boolean;
     isMultiNamespace(type: string): boolean;

src/legacy/server/saved_objects/saved_objects_mixin.js

@@ -34,8 +34,8 @@ export function savedObjectsMixin(kbnServer, server) {
   const typeRegistry = kbnServer.newPlatform.start.core.savedObjects.getTypeRegistry();
   const mappings = migrator.getActiveMappings();
   const allTypes = typeRegistry.getAllTypes().map((t) => t.name);
+  const visibleTypes = typeRegistry.getVisibleTypes().map((t) => t.name);
   const schema = new SavedObjectsSchema(convertTypesToLegacySchema(typeRegistry.getAllTypes()));
-  const visibleTypes = allTypes.filter((type) => !schema.isHiddenType(type));
 
   server.decorate('server', 'kibanaMigrator', migrator);
 

x-pack/plugins/features/server/plugin.test.ts

@@ -10,19 +10,13 @@ const initContext = coreMock.createPluginInitializerContext();
 const coreSetup = coreMock.createSetup();
 const coreStart = coreMock.createStart();
 const typeRegistry = savedObjectsServiceMock.createTypeRegistryMock();
-typeRegistry.getAllTypes.mockReturnValue([
+typeRegistry.getVisibleTypes.mockReturnValue([
   {
     name: 'foo',
     hidden: false,
     mappings: { properties: {} },
     namespaceType: 'single' as 'single',
   },
-  {
-    name: 'bar',
-    hidden: true,
-    mappings: { properties: {} },
-    namespaceType: 'agnostic' as 'agnostic',
-  },
 ]);
 coreStart.savedObjects.getTypeRegistry.mockReturnValue(typeRegistry);
 

x-pack/plugins/features/server/plugin.ts

@@ -80,10 +80,7 @@ export class Plugin {
 
   private registerOssFeatures(savedObjects: SavedObjectsServiceStart) {
     const registry = savedObjects.getTypeRegistry();
-    const savedObjectTypes = registry
-      .getAllTypes()
-      .filter((t) => !t.hidden)
-      .map((t) => t.name);
+    const savedObjectTypes = registry.getVisibleTypes().map((t) => t.name);
 
     this.logger.debug(
       `Registering OSS features with SO types: ${savedObjectTypes.join(', ')}. "includeTimelion": ${