rdf-dataset-fragmenter/lib/strategy/FragmentationStrategyComposite.js

Fragments an RDF dataset into multiple parts

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FragmentationStrategyComposite = void 0;
const node_stream_1 = require("node:stream");
/**
 * A fragmentation strategy that combines multiple strategies.
 * This means that all the given strategies will be executed in parallel.
 */
class FragmentationStrategyComposite {
    strategies;
    constructor(strategies) {
        this.strategies = strategies;
    }
    async fragment(quadStream, quadSink) {
        await Promise.all(this.strategies.map((strategy) => {
            const clone = new node_stream_1.PassThrough({ objectMode: true });
            const ret = strategy.fragment(clone, quadSink);
            quadStream.on('error', error => clone.emit('error', error));
            quadStream.pipe(clone);
            return ret;
        }));
    }
}
exports.FragmentationStrategyComposite = FragmentationStrategyComposite;
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