Creating a Plugin Registry Service in Angular
Develop a service that acts as a registry for plugins, allowing them to be registered and retrieved by name or type.
import { Injectable } from '@angular/core';
@Injectable({
providedIn: 'root'
})
export class PluginRegistryService {
private plugins = new Map<string, any>();
// Method to register a plugin by providing a name and the plugin itself
registerPlugin(pluginName: string, plugin: any): void {
if (this.plugins.has(pluginName)) {
console.warn(`A plugin with the name ${pluginName} is already registered.`);
return;
}
this.plugins.set(pluginName, plugin);
}
// Method to get a plugin by its name
getPlugin(pluginName: string): any {
return this.plugins.get(pluginName);
}
// Method to get all plugins of a specific type
getPluginsByType<T>(type: { new(...args: any[]): T }): T[] {
return Array.from(this.plugins.values())
.filter(plugin => plugin instanceof type);
}
}
This is an Angular service named PluginRegistryService. It maintains a registry of plugins using a Map object. It includes the registerPlugin method for registering plugins with a unique name, the getPlugin method for retrieving a plugin by its name, and the getPluginsByType method that filters and returns all registered plugins of a specified type.