wurtle/dist/N3GroupedWriter.js

Utilities to parse grouped quads from the N3-family of serializations based on parser directives

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var n3_1 = require("n3");
/**
 * Due to some historic decisions in N3.js it seems impossible to extend the Writer class.
 */
var GroupedWriter = /** @class */ (function () {
    function GroupedWriter(outputStream, options) {
        this.writer = new n3_1.Writer(outputStream, options);
        this._groupCount = 0;
    }
    /**
     * Add a group of quads and group them using wurtle
     * @param groupedQuads
     */
    GroupedWriter.prototype.addGroupedQuads = function (groupedQuads) {
        var _this = this;
        this.writer._outputStream.write('# @group begin ' + this._groupCount + '\n');
        var _loop_1 = function (i) {
            var quad = groupedQuads[i];
            this_1.writer.addQuad(quad.subject, quad.predicate, quad.object, quad.graph, function () {
                //If this was the last element, close the group now.
                if (groupedQuads.length === i + 1) {
                    _this.writer._outputStream.write('\n# @group end ' + _this._groupCount + '\n');
                    _this._groupCount++;
                }
            });
        };
        var this_1 = this;
        for (var i = 0; i < groupedQuads.length; i++) {
            _loop_1(i);
        }
    };
    GroupedWriter.prototype.end = function (cb) {
        this.writer.end(cb);
    };
    return GroupedWriter;
}());
exports.default = GroupedWriter;
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