UNPKG

12.5 kBJavaScriptView Raw
1"use strict";
2/**
3 * @license
4 * Copyright Google LLC All Rights Reserved.
5 *
6 * Use of this source code is governed by an MIT-style license that can be
7 * found in the LICENSE file at https://angular.io/license
8 */
9Object.defineProperty(exports, "__esModule", { value: true });
10exports.FallbackEngineHost = void 0;
11const rxjs_1 = require("rxjs");
12const operators_1 = require("rxjs/operators");
13const src_1 = require("../src");
14/**
15 * An EngineHost that support multiple hosts in a fallback configuration. If a host does not
16 * have a collection/schematics, use the following host before giving up.
17 */
18class FallbackEngineHost {
19 constructor() {
20 this._hosts = [];
21 }
22 addHost(host) {
23 this._hosts.push(host);
24 }
25 createCollectionDescription(name, requester) {
26 for (const host of this._hosts) {
27 try {
28 const description = host.createCollectionDescription(name, requester);
29 return { name, host, description };
30 }
31 catch (_) { }
32 }
33 throw new src_1.UnknownCollectionException(name);
34 }
35 createSchematicDescription(name, collection) {
36 const description = collection.host.createSchematicDescription(name, collection.description);
37 if (!description) {
38 return null;
39 }
40 return { name, collection, description };
41 }
42 getSchematicRuleFactory(schematic, collection) {
43 return collection.host.getSchematicRuleFactory(schematic.description, collection.description);
44 }
45 createSourceFromUrl(url, context) {
46 return context.schematic.collection.description.host.createSourceFromUrl(url, context);
47 }
48 transformOptions(schematic, options, context) {
49 // eslint-disable-next-line @typescript-eslint/no-explicit-any
50 return (0, rxjs_1.of)(options).pipe(...this._hosts.map((host) => (0, operators_1.mergeMap)((opt) => host.transformOptions(schematic, opt, context))));
51 }
52 transformContext(context) {
53 let result = context;
54 this._hosts.forEach((host) => {
55 result = (host.transformContext(result) || result);
56 });
57 return result;
58 }
59 listSchematicNames(collection, includeHidden) {
60 const allNames = new Set();
61 this._hosts.forEach((host) => {
62 try {
63 host
64 .listSchematicNames(collection.description, includeHidden)
65 .forEach((name) => allNames.add(name));
66 }
67 catch (_) { }
68 });
69 return [...allNames];
70 }
71 createTaskExecutor(name) {
72 for (const host of this._hosts) {
73 if (host.hasTaskExecutor(name)) {
74 return host.createTaskExecutor(name);
75 }
76 }
77 return (0, rxjs_1.throwError)(new src_1.UnregisteredTaskException(name));
78 }
79 hasTaskExecutor(name) {
80 for (const host of this._hosts) {
81 if (host.hasTaskExecutor(name)) {
82 return true;
83 }
84 }
85 return false;
86 }
87}
88exports.FallbackEngineHost = FallbackEngineHost;
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If a host does not\n * have a collection/schematics, use the following host before giving up.\n */\nexport class FallbackEngineHost implements EngineHost<{}, {}> {\n  private _hosts: EngineHost<{}, {}>[] = [];\n\n  addHost<CollectionT extends object, SchematicT extends object>(\n    host: EngineHost<CollectionT, SchematicT>,\n  ) {\n    this._hosts.push(host);\n  }\n\n  createCollectionDescription(\n    name: string,\n    requester?: CollectionDescription<{}>,\n  ): CollectionDescription<FallbackCollectionDescription> {\n    for (const host of this._hosts) {\n      try {\n        const description = host.createCollectionDescription(name, requester);\n\n        return { name, host, description };\n      } catch (_) {}\n    }\n\n    throw new UnknownCollectionException(name);\n  }\n\n  createSchematicDescription(\n    name: string,\n    collection: CollectionDescription<FallbackCollectionDescription>,\n  ): SchematicDescription<FallbackCollectionDescription, FallbackSchematicDescription> | null {\n    const description = collection.host.createSchematicDescription(name, collection.description);\n    if (!description) {\n      return null;\n    }\n\n    return { name, collection, description };\n  }\n\n  getSchematicRuleFactory<OptionT extends object>(\n    schematic: SchematicDescription<FallbackCollectionDescription, FallbackSchematicDescription>,\n    collection: CollectionDescription<FallbackCollectionDescription>,\n  ): RuleFactory<OptionT> {\n    return collection.host.getSchematicRuleFactory(schematic.description, collection.description);\n  }\n\n  createSourceFromUrl(url: Url, context: FallbackContext): Source | null {\n    return context.schematic.collection.description.host.createSourceFromUrl(url, context);\n  }\n\n  transformOptions<OptionT extends object, ResultT extends object>(\n    schematic: SchematicDescription<FallbackCollectionDescription, FallbackSchematicDescription>,\n    options: OptionT,\n    context?: FallbackContext,\n  ): Observable<ResultT> {\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    return (observableOf(options) as any).pipe(\n      ...this._hosts.map((host) =>\n        mergeMap((opt: {}) => host.transformOptions(schematic, opt, context)),\n      ),\n    ) as {} as Observable<ResultT>;\n  }\n\n  transformContext(context: FallbackContext): FallbackContext {\n    let result = context;\n\n    this._hosts.forEach((host) => {\n      result = (host.transformContext(result) || result) as FallbackContext;\n    });\n\n    return result;\n  }\n\n  listSchematicNames(\n    collection: CollectionDescription<FallbackCollectionDescription>,\n    includeHidden?: boolean,\n  ): string[] {\n    const allNames = new Set<string>();\n    this._hosts.forEach((host) => {\n      try {\n        host\n          .listSchematicNames(collection.description, includeHidden)\n          .forEach((name) => allNames.add(name));\n      } catch (_) {}\n    });\n\n    return [...allNames];\n  }\n\n  createTaskExecutor(name: string): Observable<TaskExecutor> {\n    for (const host of this._hosts) {\n      if (host.hasTaskExecutor(name)) {\n        return host.createTaskExecutor(name);\n      }\n    }\n\n    return throwError(new UnregisteredTaskException(name));\n  }\n\n  hasTaskExecutor(name: string): boolean {\n    for (const host of this._hosts) {\n      if (host.hasTaskExecutor(name)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n}\n"]}
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