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83 lines
2.6 KiB
83 lines
2.6 KiB
import {
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AbstractFactory,
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DependencyRequirement,
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PropertyDependency,
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isInstantiable,
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DEPENDENCY_KEYS_METADATA_KEY,
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DEPENDENCY_KEYS_PROPERTY_METADATA_KEY, Instantiable, Injectable, Inject, FactoryProducer,
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} from '../../di'
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import {Collection, ErrorWithContext} from '../../util'
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import {Logging} from '../../service/Logging'
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import {Config} from '../../service/Config'
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import {Migrator} from './Migrator'
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import {DatabaseMigrator} from './DatabaseMigrator'
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/**
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* A dependency injection factory that matches the abstract Migrator class
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* and produces an instance of the configured session driver implementation.
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*/
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@Injectable()
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@FactoryProducer()
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export class MigratorFactory extends AbstractFactory<Migrator> {
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@Inject()
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protected readonly logging!: Logging
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@Inject()
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protected readonly config!: Config
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constructor() {
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super({})
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}
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produce(): Migrator {
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return new (this.getMigratorClass())()
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}
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match(something: unknown): boolean {
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return something === Migrator
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}
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getDependencyKeys(): Collection<DependencyRequirement> {
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const meta = Reflect.getMetadata(DEPENDENCY_KEYS_METADATA_KEY, this.getMigratorClass())
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if ( meta ) {
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return meta
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}
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return new Collection<DependencyRequirement>()
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}
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getInjectedProperties(): Collection<PropertyDependency> {
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const meta = new Collection<PropertyDependency>()
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let currentToken = this.getMigratorClass()
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do {
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const loadedMeta = Reflect.getMetadata(DEPENDENCY_KEYS_PROPERTY_METADATA_KEY, currentToken)
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if ( loadedMeta ) {
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meta.concat(loadedMeta)
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}
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currentToken = Object.getPrototypeOf(currentToken)
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} while (Object.getPrototypeOf(currentToken) !== Function.prototype && Object.getPrototypeOf(currentToken) !== Object.prototype)
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return meta
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}
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/**
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* Return the instantiable class of the configured migrator backend.
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* @protected
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* @return Instantiable<Migrator>
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*/
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protected getMigratorClass(): Instantiable<Migrator> {
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const MigratorClass = this.config.get('database.migrations.driver', DatabaseMigrator)
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if ( !isInstantiable(MigratorClass) || !(MigratorClass.prototype instanceof Migrator) ) {
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const e = new ErrorWithContext('Provided migration driver class does not extend from @extollo/lib.Migrator')
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e.context = {
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configKey: 'database.migrations.driver',
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class: MigratorClass.toString(),
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}
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}
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return MigratorClass
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}
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}
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