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fix(platform-server): allow multiple instances of platformServer and platformDynamicServer

This commit is contained in:
Vikram Subramanian 2017-02-12 09:16:23 -08:00 committed by Igor Minar
parent 0e2fd9d91a
commit 17486fd696
6 changed files with 152 additions and 113 deletions
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11
modules/@angular/core/src/application_ref.ts
View File

@ -37,6 +37,8 @@ let _devMode: boolean = true;
let _runModeLocked: boolean = false;
let _platform: PlatformRef;
export const ALLOW_MULTIPLE_PLATFORMS = new InjectionToken<boolean>('AllowMultipleToken');
/**
* Disable Angular's development mode, which turns off assertions and other
* checks within the framework.
@ -83,7 +85,8 @@ export class NgProbeToken {
* @experimental APIs related to application bootstrap are currently under review.
*/
export function createPlatform(injector: Injector): PlatformRef {
if (_platform && !_platform.destroyed) {
if (_platform && !_platform.destroyed &&
!_platform.injector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {
throw new Error(
'There can be only one platform. Destroy the previous one to create a new one.');
}
@ -103,7 +106,8 @@ export function createPlatformFactory(
providers: Provider[] = []): (extraProviders?: Provider[]) => PlatformRef {
const marker = new InjectionToken(`Platform: ${name}`);
return (extraProviders: Provider[] = []) => {
if (!getPlatform()) {
let platform = getPlatform();
if (!platform || platform.injector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {
if (parentPlatformFactory) {
parentPlatformFactory(
providers.concat(extraProviders).concat({provide: marker, useValue: true}));
@ -117,8 +121,7 @@ export function createPlatformFactory(
}
/**
* Checks that there currently is a platform
* which contains the given token as a provider.
* Checks that there currently is a platform which contains the given token as a provider.
*
* @experimental APIs related to application bootstrap are currently under review.
*/

5
modules/@angular/core/src/core_private_export.ts
View File

@ -14,6 +14,7 @@ import {AnimationSequencePlayer as AnimationSequencePlayer_} from './animation/a
import * as animationUtils from './animation/animation_style_util';
import {AnimationStyles as AnimationStyles_} from './animation/animation_styles';
import {AnimationTransition} from './animation/animation_transition';
import {ALLOW_MULTIPLE_PLATFORMS} from './application_ref';
import * as application_tokens from './application_tokens';
import * as change_detection_util from './change_detection/change_detection_util';
import * as constants from './change_detection/constants';
@ -124,7 +125,8 @@ export const __core_private__: {
FILL_STYLE_FLAG: typeof FILL_STYLE_FLAG_,
isPromise: typeof isPromise,
isObservable: typeof isObservable,
AnimationTransition: typeof AnimationTransition
AnimationTransition: typeof AnimationTransition,
ALLOW_MULTIPLE_PLATFORMS: typeof ALLOW_MULTIPLE_PLATFORMS,
view_utils: typeof view_utils,
ERROR_COMPONENT_TYPE: typeof ERROR_COMPONENT_TYPE,
viewEngine: typeof viewEngine,
@ -180,6 +182,7 @@ export const __core_private__: {
isPromise: isPromise,
isObservable: isObservable,
AnimationTransition: AnimationTransition,
ALLOW_MULTIPLE_PLATFORMS: ALLOW_MULTIPLE_PLATFORMS,
ERROR_COMPONENT_TYPE: ERROR_COMPONENT_TYPE,
TransitionEngine: TransitionEngine
} as any /* TODO(misko): export these using omega names instead */;

3
modules/@angular/platform-server/src/private_import_core.ts
View File

@ -23,3 +23,6 @@ export type DebugDomRootRenderer = typeof r._DebugDomRootRenderer;
export const DebugDomRootRenderer: typeof r.DebugDomRootRenderer = r.DebugDomRootRenderer;
export type DebugDomRendererV2 = typeof r._DebugDomRendererV2;
export const DebugDomRendererV2: typeof r.DebugDomRendererV2 = r.DebugDomRendererV2;
export type ALLOW_MULTIPLE_PLATFORMS = typeof r.ALLOW_MULTIPLE_PLATFORMS;
export const ALLOW_MULTIPLE_PLATFORMS: typeof r.ALLOW_MULTIPLE_PLATFORMS =
r.ALLOW_MULTIPLE_PLATFORMS;

7
modules/@angular/platform-server/src/server.ts
View File

@ -14,7 +14,7 @@ import {BrowserModule, DOCUMENT} from '@angular/platform-browser';
import {ServerPlatformLocation} from './location';
import {Parse5DomAdapter, parseDocument} from './parse5_adapter';
import {PlatformState} from './platform_state';
import {DebugDomRendererV2, DebugDomRootRenderer} from './private_import_core';
import {ALLOW_MULTIPLE_PLATFORMS, DebugDomRendererV2, DebugDomRootRenderer} from './private_import_core';
import {SharedStylesHost, getDOM} from './private_import_platform-browser';
import {ServerRendererV2, ServerRootRenderer} from './server_renderer';
@ -25,8 +25,9 @@ function notSupported(feature: string): Error {
export const INTERNAL_SERVER_PLATFORM_PROVIDERS: Array<any /*Type | Provider | any[]*/> = [
{provide: DOCUMENT, useFactory: _document, deps: [Injector]},
{provide: PLATFORM_INITIALIZER, useFactory: initParse5Adapter, multi: true, deps: [Injector]},
{provide: PlatformLocation, useClass: ServerPlatformLocation},
PlatformState,
{provide: PlatformLocation, useClass: ServerPlatformLocation}, PlatformState,
// Add special provider that allows multiple instances of platformServer* to be created.
{provide: ALLOW_MULTIPLE_PLATFORMS, useValue: true}
];
function initParse5Adapter(injector: Injector) {

4
modules/@angular/platform-server/src/utils.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {ApplicationRef, NgModuleFactory, NgModuleRef, PlatformRef, Provider, Type, destroyPlatform} from '@angular/core';
import {ApplicationRef, NgModuleFactory, NgModuleRef, PlatformRef, Provider, Type} from '@angular/core';
import {filter} from 'rxjs/operator/filter';
import {first} from 'rxjs/operator/first';
import {toPromise} from 'rxjs/operator/toPromise';
@ -40,7 +40,7 @@ function _render<T>(
.call(first.call(filter.call(applicationRef.isStable, (isStable: boolean) => isStable)))
.then(() => {
const output = platform.injector.get(PlatformState).renderToString();
destroyPlatform();
platform.destroy();
return output;
});
});

119
modules/@angular/platform-server/test/integration_spec.ts
View File

@ -25,93 +25,121 @@ class MyServerApp {
class ExampleModule {
}
@Component({selector: 'app', template: `Works too!`})
class MyServerApp2 {
}
@NgModule({declarations: [MyServerApp2], imports: [ServerModule], bootstrap: [MyServerApp2]})
class ExampleModule2 {
}
@Component({selector: 'app', template: '{{text}}'})
class MyAsyncServerApp {
text = '';
ngOnInit() {
Promise.resolve(null).then(() => setTimeout(() => { this.text = 'Works!'; }, 10));
}
}
@NgModule(
{declarations: [MyAsyncServerApp], imports: [ServerModule], bootstrap: [MyAsyncServerApp]})
class AsyncServerModule {
}
export function main() {
if (getDOM().supportsDOMEvents()) return; // NODE only
describe('platform-server integration', () => {
beforeEach(() => destroyPlatform());
afterEach(() => destroyPlatform());
beforeEach(() => {
if (getPlatform()) destroyPlatform();
});
it('should bootstrap', async(() => {
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}])
.bootstrapModule(ExampleModule)
.then((moduleRef) => {
const platform = platformDynamicServer(
[{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
platform.bootstrapModule(ExampleModule).then((moduleRef) => {
const doc = moduleRef.injector.get(DOCUMENT);
expect(getDOM().getText(doc)).toEqual('Works!');
platform.destroy();
});
}));
it('should allow multiple platform instances', async(() => {
const platform = platformDynamicServer(
[{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
const platform2 = platformDynamicServer(
[{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
platform.bootstrapModule(ExampleModule).then((moduleRef) => {
const doc = moduleRef.injector.get(DOCUMENT);
expect(getDOM().getText(doc)).toEqual('Works!');
platform.destroy();
});
platform2.bootstrapModule(ExampleModule2).then((moduleRef) => {
const doc = moduleRef.injector.get(DOCUMENT);
expect(getDOM().getText(doc)).toEqual('Works too!');
platform2.destroy();
});
}));
describe('PlatformLocation', () => {
it('is injectable', () => {
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}])
.bootstrapModule(ExampleModule)
.then(appRef => {
it('is injectable', async(() => {
const platform = platformDynamicServer(
[{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
platform.bootstrapModule(ExampleModule).then(appRef => {
const location: PlatformLocation = appRef.injector.get(PlatformLocation);
expect(location.pathname).toBe('/');
platform.destroy();
});
});
it('pushState causes the URL to update', () => {
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}])
.bootstrapModule(ExampleModule)
.then(appRef => {
}));
it('pushState causes the URL to update', async(() => {
const platform = platformDynamicServer(
[{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
platform.bootstrapModule(ExampleModule).then(appRef => {
const location: PlatformLocation = appRef.injector.get(PlatformLocation);
location.pushState(null, 'Test', '/foo#bar');
expect(location.pathname).toBe('/foo');
expect(location.hash).toBe('#bar');
platform.destroy();
});
});
}));
it('allows subscription to the hash state', done => {
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}])
.bootstrapModule(ExampleModule)
.then(appRef => {
const platform =
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
platform.bootstrapModule(ExampleModule).then(appRef => {
const location: PlatformLocation = appRef.injector.get(PlatformLocation);
expect(location.pathname).toBe('/');
location.onHashChange((e: any) => {
expect(e.type).toBe('hashchange');
expect(e.oldUrl).toBe('/');
expect(e.newUrl).toBe('/foo#bar');
platform.destroy();
done();
});
location.pushState(null, 'Test', '/foo#bar');
});
});
});
});
describe('Platform Server', () => {
@Component({selector: 'app', template: '{{text}}'})
class MyAsyncServerApp {
text = '';
ngOnInit() {
Promise.resolve(null).then(() => setTimeout(() => { this.text = 'Works!'; }, 10));
}
}
@NgModule(
{declarations: [MyAsyncServerApp], imports: [ServerModule], bootstrap: [MyAsyncServerApp]})
class AsyncServerModule {
}
describe('render', () => {
let doc: string;
let called: boolean;
let expectedOutput =
'<html><head></head><body><app ng-version="0.0.0-PLACEHOLDER">Works!</app></body></html>';
beforeEach(() => {
destroyPlatform();
// PlatformConfig takes in a parsed document so that it can be cached across requests.
doc = '<html><head></head><body><app></app></body></html>';
called = false;
});
afterEach(() => {
expect(called).toBe(true);
// Platform should have been destroyed at the end of rendering.
expect(getPlatform()).toBeNull();
});
afterEach(() => { expect(called).toBe(true); });
it('PlatformState should render to string (Long form rendering)', async(() => {
it('using long from should work', async(() => {
const platform =
platformDynamicServer([{provide: INITIAL_CONFIG, useValue: {document: doc}}]);
@ -123,19 +151,19 @@ export function main() {
})
.then((b) => {
expect(platform.injector.get(PlatformState).renderToString()).toBe(expectedOutput);
destroyPlatform();
platform.destroy();
called = true;
});
}));
it('renderModule should render to string (short form rendering)', async(() => {
it('using renderModule should work', async(() => {
renderModule(AsyncServerModule, {document: doc}).then(output => {
expect(output).toBe(expectedOutput);
called = true;
});
}));
it('renderModuleFactory should render to string (short form rendering)',
it('using renderModuleFactory should work',
async(inject([PlatformRef], (defaultPlatform: PlatformRef) => {
const compilerFactory: CompilerFactory =
defaultPlatform.injector.get(CompilerFactory, null);
@ -147,4 +175,5 @@ export function main() {
});
})));
});
});
}