@pujansrt/data-genie/dist/filters/filtering-reader.js

High performant ETL engine written in TypeScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FilteringReader = void 0;
const transformers_1 = require("../transformers/transformers");
class FilteringReader extends transformers_1.DataTransformer {
    constructor(reader) {
        super(reader);
        this.rules = [];
    }
    add(rule) {
        this.rules.push(rule);
        return this;
    }
    async *read() {
        for await (const record of this.reader.read()) {
            let passedAllRules = true;
            for (const rule of this.rules) {
                if (!rule(record)) {
                    passedAllRules = false;
                    break;
                }
            }
            if (passedAllRules) {
                yield record;
            }
        }
    }
}
exports.FilteringReader = FilteringReader;