smartsocket/ts/smartsocket.classes.socketfunction.ts
2019-08-13 15:58:08 +02:00

93 lines
2.7 KiB
TypeScript

import * as plugins from './smartsocket.plugins';
// import classes
import { Objectmap } from '@pushrocks/lik';
import { SocketRole } from './smartsocket.classes.socketrole';
import { SocketConnection } from './smartsocket.classes.socketconnection';
import { Smartsocket } from './smartsocket.classes.smartsocket';
import { SmartsocketClient } from './smartsocket.classes.smartsocketclient';
// export interfaces
/**
* interface of the contructor options of class SocketFunction
*/
export interface ISocketFunctionConstructorOptions {
funcName: string;
funcDef: TFuncDef;
allowedRoles: SocketRole[]; // all roles that are allowed to execute a SocketFunction
}
/**
* interface of the Socket Function call, in other words the object that routes a call to a function
*/
export interface ISocketFunctionCall {
funcName: string;
funcDataArg: any;
}
/**
* interface for function definition of SocketFunction
*/
export type TFuncDef = (dataArg: any, connectionArg: SocketConnection) => PromiseLike<any>;
// export classes
/**
* class that respresents a function that can be transparently called using a SocketConnection
*/
export class SocketFunction {
// STATIC
public static getSocketFunctionByName(
smartsocketRefArg: Smartsocket | SmartsocketClient,
functionNameArg: string
): SocketFunction {
return smartsocketRefArg.socketFunctions.find(socketFunctionArg => {
return socketFunctionArg.name === functionNameArg;
});
}
// INSTANCE
public name: string;
public funcDef: TFuncDef;
public roles: SocketRole[];
/**
* the constructor for SocketFunction
*/
constructor(optionsArg: ISocketFunctionConstructorOptions) {
this.name = optionsArg.funcName;
this.funcDef = optionsArg.funcDef;
this.roles = optionsArg.allowedRoles;
for (const socketRoleArg of this.roles) {
this._notifyRole(socketRoleArg);
}
}
/**
* invokes the function of this SocketFunction
*/
public invoke(dataArg: ISocketFunctionCall, socketConnectionArg: SocketConnection): Promise<any> {
const done = plugins.smartpromise.defer();
if (dataArg.funcName === this.name) {
this.funcDef(dataArg.funcDataArg, socketConnectionArg).then((resultData: any) => {
const funcResponseData: ISocketFunctionCall = {
funcName: this.name,
funcDataArg: resultData
};
done.resolve(funcResponseData);
});
} else {
throw new Error("SocketFunction.name does not match the data argument's .name!");
}
return done.promise;
}
/**
* notifies a role about access to this SocketFunction
*/
private _notifyRole(socketRoleArg: SocketRole) {
socketRoleArg.addSocketFunction(this);
}
}