99 lines
2.9 KiB
TypeScript
99 lines
2.9 KiB
TypeScript
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import { actionAddins } from ".";
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import { IAction, IActionProperty, IActionNode, IContext, IActionResult } from "../types/ActionTypes";
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import { ConditionTree } from '../types/Conditions';
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/**
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* アクションの属性定義
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*/
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interface IErrorShowProps {
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message: string;
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condition: string;
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}
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export class ErrorShowAction implements IAction {
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name: string;
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actionProps: IActionProperty[]; //调用从import导入关于显示类的定义
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props: IErrorShowProps;//从上方的interface 定义这个props所需要接受的属性
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constructor() { //解构函数定义需要的类名
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this.name = "エラー表示";
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this.actionProps = [];
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this.props = {
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message: '',
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condition: ''
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}
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this.register(); //重置以上注册表
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}
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/**
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* アクションの実行を呼び出す
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* @param actionNode
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* @param event
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* @returns
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*/
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async process(actionNode: IActionNode, event: any, context: IContext): Promise<IActionResult> { //异步处理某函数下的：xx属性
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let result = {
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canNext: true,
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result: false
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};
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try { //尝试执行以下代码部分
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this.actionProps = actionNode.actionProps;
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if (!('message' in actionNode.ActionValue) && !('condition' in actionNode.ActionValue)) { //如果message以及condition两者都不存在的情况下return
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return result
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}
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this.props = actionNode.ActionValue as IErrorShowProps;
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const conditionResult = this.getConditionResult(context);
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if (conditionResult) {
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event.error = this.props.message;
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} else {
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result = {
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canNext: false,
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result: true
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}
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}
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return result;
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} catch (error) {
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event.error = error;
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console.error(error);
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result.canNext = false;
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return result;
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}
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}
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/**
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*
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* @param context 条件式を実行する
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* @returns
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*/
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getConditionResult(context: any): boolean {
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const tree = this.getCondition(this.props.condition);
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if (!tree) {
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//条件を設定されていません
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return true;
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}
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return tree.evaluate(tree.root, context);
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}
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/**
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* @param condition 条件式ツリーを取得する
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* @returns
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*/
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getCondition(condition: string): ConditionTree | null {
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try {
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const tree = new ConditionTree();
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tree.fromJson(condition);
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if (tree.getConditions(tree.root).length > 0) {
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return tree;
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} else {
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return null;
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}
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} catch (error) {
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return null;
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}
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}
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register(): void {
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actionAddins[this.name] = this;
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}
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}
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new ErrorShowAction(); |