1 | import { Dict } from './dict';
|
2 | import { Factory, FactoryDefinition } from './factory';
|
3 |
|
4 | export interface RegistrationOptions {
|
5 | singleton?: boolean;
|
6 | instantiate?: boolean;
|
7 | }
|
8 |
|
9 | export interface Injection {
|
10 | property: string,
|
11 | source: string
|
12 | }
|
13 |
|
14 | export interface RegistryWriter {
|
15 | register(specifier: string, factory: any, options?: RegistrationOptions): void;
|
16 | unregister(specifier: string): void;
|
17 | registerOption(specifier: string, option: string, value: any): void;
|
18 | unregisterOption(specifier: string, option: string): void;
|
19 | registerInjection(specifier: string, property: string, source: string): void;
|
20 | }
|
21 |
|
22 | export interface RegistryReader {
|
23 | registration(specifier: string): any;
|
24 | registeredOption(specifier: string, option: string): any;
|
25 | registeredOptions(specifier: string): any;
|
26 | registeredInjections(specifier: string): Injection[];
|
27 | }
|
28 |
|
29 | export interface RegistryOptions {
|
30 | fallback?: RegistryReader;
|
31 | }
|
32 |
|
33 | export interface RegistryAccessor extends RegistryReader, RegistryWriter {}
|
34 |
|
35 | export default class Registry implements RegistryAccessor {
|
36 | private _registrations: Dict<FactoryDefinition<any>>;
|
37 | private _registeredOptions: Dict<any>;
|
38 | private _registeredInjections: Dict<Injection[]>;
|
39 | private _fallback: RegistryReader;
|
40 |
|
41 | constructor(options?: RegistryOptions) {
|
42 | this._registrations = {};
|
43 | this._registeredOptions = {};
|
44 | this._registeredInjections = {};
|
45 | if (options && options.fallback) {
|
46 | this._fallback = options.fallback;
|
47 | }
|
48 | }
|
49 |
|
50 | register(specifier: string, factoryDefinition: FactoryDefinition<any>, options?: RegistrationOptions): void {
|
51 | this._registrations[specifier] = factoryDefinition;
|
52 | if (options) {
|
53 | this._registeredOptions[specifier] = options;
|
54 | }
|
55 | }
|
56 |
|
57 | registration(specifier: string): FactoryDefinition<any> {
|
58 | let registration = this._registrations[specifier];
|
59 | if (registration === undefined && this._fallback) {
|
60 | registration = this._fallback.registration(specifier);
|
61 | }
|
62 | return registration;
|
63 | }
|
64 |
|
65 | unregister(specifier: string): void {
|
66 | delete this._registrations[specifier];
|
67 | delete this._registeredOptions[specifier];
|
68 | delete this._registeredInjections[specifier];
|
69 | }
|
70 |
|
71 | registerOption(specifier: string, option: string, value: any): void {
|
72 | let options = this._registeredOptions[specifier];
|
73 |
|
74 | if (!options) {
|
75 | options = {};
|
76 | this._registeredOptions[specifier] = options;
|
77 | }
|
78 |
|
79 | options[option] = value;
|
80 | }
|
81 |
|
82 | registeredOption(specifier: string, option: string): any {
|
83 | let result: Boolean;
|
84 | let options = this.registeredOptions(specifier);
|
85 |
|
86 | if (options) {
|
87 | result = options[option];
|
88 | }
|
89 |
|
90 | if (result === undefined && this._fallback !== undefined) {
|
91 | result = this._fallback.registeredOption(specifier, option);
|
92 | }
|
93 |
|
94 | return result;
|
95 | }
|
96 |
|
97 | registeredOptions(specifier: string): any {
|
98 | let options = this._registeredOptions[specifier];
|
99 | if (options === undefined) {
|
100 | let type = specifier.split(':')[0];
|
101 | options = this._registeredOptions[type];
|
102 | }
|
103 | return options;
|
104 | }
|
105 |
|
106 | unregisterOption(specifier: string, option: string): void {
|
107 | let options = this._registeredOptions[specifier];
|
108 |
|
109 | if (options) {
|
110 | delete options[option];
|
111 | }
|
112 | }
|
113 |
|
114 | registerInjection(specifier: string, property: string, source: string): void {
|
115 | let injections = this._registeredInjections[specifier];
|
116 | if (injections === undefined) {
|
117 | this._registeredInjections[specifier] = injections = [];
|
118 | }
|
119 | injections.push({
|
120 | property,
|
121 | source
|
122 | });
|
123 | }
|
124 |
|
125 | registeredInjections(specifier: string): Injection[] {
|
126 | let type = specifier.split(':')[0];
|
127 | let injections: Injection[] = this._fallback ? this._fallback.registeredInjections(specifier) : [];
|
128 | Array.prototype.push.apply(injections, this._registeredInjections[type]);
|
129 | Array.prototype.push.apply(injections, this._registeredInjections[specifier]);
|
130 | return injections;
|
131 | }
|
132 | }
|