genomic-reader
Version:
A Typescript library for reading BigWig, BigBed, 2bit, and Bam files. Capable of streaming. For use in the browser or on Node.js.
30 lines • 1.39 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileDataLoader = void 0;
const fs_1 = require("fs");
class FileDataLoader {
constructor(file) {
this.file = file;
}
load(start, size) {
return __awaiter(this, void 0, void 0, function* () {
return (yield new Response(this.file.slice(start, size && start + size))).arrayBuffer();
});
}
loadStream(start, size) {
return __awaiter(this, void 0, void 0, function* () {
return fs_1.createReadStream(this.file.name, { start, end: size && start + size });
});
}
}
exports.FileDataLoader = FileDataLoader;
//# sourceMappingURL=FileDataLoader.js.map