node-web-mvc/dist/servlets/filter/DefaultFilterChain.js

node spring mvc

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class DefaultFilterChain {
    createDefer() {
        const runtime = { promise: null, resolve: null, reject: null };
        runtime.promise = new Promise((resolve, reject) => {
            runtime.resolve = resolve;
            runtime.reject = reject;
        });
        return runtime;
    }
    constructor(filters) {
        this.filters = filters;
        this.nextIndex = 0;
        this.doFilter = this.internalDoFilter;
    }
    async internalDoFilter(request, response) {
        const filter = this.filters[this.nextIndex];
        this.nextIndex++;
        const defer = this.createDefer();
        this.doFilter = (request, response) => {
            defer.resolve(this.internalDoFilter(request, response));
            return defer.promise;
        };
        if (filter === null || filter === void 0 ? void 0 : filter.doFilter) {
            await filter.doFilter(request, response, this);
            // 用于解决，在filter中执行chain.doFilter时不用进行return promise连接
            await defer.promise;
        }
        // 没有doFilter 则直接返回
    }
}
exports.default = DefaultFilterChain;