taskbuffer/ts/taskbuffer.classes.task.ts
2019-01-15 00:17:44 +01:00

107 lines
2.3 KiB
TypeScript

import * as plugins from './taskbuffer.plugins';
import * as helpers from './taskbuffer.classes.helpers';
export interface ITaskFunction {
(x?: any): PromiseLike<any>;
}
export class Task {
// man datory properties
name: string;
taskFunction: ITaskFunction;
buffered: boolean;
bufferMax: number;
execDelay: number;
// tasks to run before and after
preTask: Task;
afterTask: Task;
// initialize by default
running: boolean = false;
bufferRunner = new helpers.BufferRunner(this);
cycleCounter = new helpers.CycleCounter(this);
idle: boolean = true;
private _state: string = 'ready';
constructor(optionsArg: {
/**
* the task function to run, must return promise
*/
taskFunction: ITaskFunction;
/**
* any other task to run before
*/
preTask?: Task;
/**
* any other task to run after
*/
afterTask?: Task;
/**
* wether this task should run buffered
*/
buffered?: boolean;
/**
* the maximum buffer
*/
bufferMax?: number;
/**
* the execution delay, before the task is executed
* only makes sense when running in buffered mode
*/
execDelay?: number;
/**
* the name of the task
*/
name?: string;
}) {
this.taskFunction = optionsArg.taskFunction;
this.preTask = optionsArg.preTask;
this.afterTask = optionsArg.afterTask;
this.idle = !this.running;
this.buffered = optionsArg.buffered;
this.bufferMax = optionsArg.bufferMax;
this.execDelay = optionsArg.execDelay;
this.name = optionsArg.name;
}
/**
* trigger the task. Will trigger buffered if this.buffered is true
*/
trigger(x?): Promise<any> {
if (this.buffered) {
return this.triggerBuffered(x);
} else {
return this.triggerUnBuffered(x);
}
}
/**
* trigger task unbuffered.
*/
triggerUnBuffered(x?): Promise<any> {
return helpers.runTask(this, { x: x });
}
/**
* trigger task buffered.
*/
triggerBuffered(x?): Promise<any> {
return this.bufferRunner.trigger(x);
}
get state(): string {
return this._state;
}
set state(stateArg: string) {
if (stateArg === 'locked') {
this._state = 'locked';
} else {
plugins.smartlog.defaultLogger.log('error', 'state type ' + stateArg + ' could not be set');
}
}
}