nope/lib/dispatcher/getDispatcher.ts

91 lines
2.2 KiB
TypeScript

/**
* @author Martin Karkowski
* @email m.karkowski@zema.de
* @create date 2020-11-06 08:52:48
* @modify date 2022-01-10 14:17:09
* @desc [description]
*/
import { getSingleton } from "../helpers/singletonMethod";
import { NopeGenericWrapper } from "../module/GenericWrapper";
import { NopeObservable } from "../observables/nopeObservable";
import {
IDispatcherConstructor,
INopeDispatcher,
INopeDispatcherOptions,
} from "../types/nope/nopeDispatcher.interface";
import { addAllBaseServices } from "./baseServices";
import { NopeDispatcher } from "./nopeDispatcher";
/**
* Function to extract a Singleton Dispatcher
* @param dispatcherOptions The provided options for the Dispatcher
*
* ```typescript
*
* ```
*/
export function getDispatcher(
dispatcherOptions: INopeDispatcherOptions,
options: {
constructorClass?: IDispatcherConstructor;
singleton?: boolean;
useBaseServices?: boolean;
} = {}
): INopeDispatcher {
if (
options.constructorClass === null ||
options.constructorClass === undefined
) {
options.constructorClass = NopeDispatcher;
}
options = Object.assign(
{
constructorClass: null,
singleton: true,
useBaseServices: true,
},
options
);
const create = () => {
const dispatcher = new options.constructorClass(
dispatcherOptions,
() => new NopeObservable()
);
// Register a default instance generator:
// Defaultly generate a NopeGenericModule
dispatcher.instanceManager.registerInternalWrapperGenerator(
"*",
async (core, description) => {
const mod = new NopeGenericWrapper(core, () => new NopeObservable());
await mod.fromDescription(description, "overwrite");
// await mod.init();
return mod;
}
);
if (options.useBaseServices) {
addAllBaseServices(dispatcher);
}
// Return the Dispathcer
return dispatcher as INopeDispatcher;
};
if (options.singleton) {
// Create a singaleton if required.
// use the container to receive the
// singleton object
const container = getSingleton("nopeBackendDispatcher.instance", create);
return container.instance;
}
// No singleton is required =>
// create a new instance.
return create();
}