@ombori/epc-ean
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EPC Tag Data Standard encoding and decoding library, written in javascript
125 lines (124 loc) • 4.71 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Gsrn96 = void 0;
const utils_1 = __importDefault(require("../utils/utils"));
const epc_1 = require("../epc");
const type_1 = require("../type");
const partition_1 = require("../partition");
class Gsrn96 extends epc_1.Epc {
constructor(hexEpc) {
super(Gsrn96.TOTAL_BITS);
if (hexEpc) {
super.setFromHexString(hexEpc);
}
else {
super.set(Gsrn96.EPC_HEADER, epc_1.Epc.EPC_HEADER_OFFSET, epc_1.Epc.EPC_HEADER_END);
}
}
clone() {
return new Gsrn96().setFromBitArray(this);
}
getType() {
return type_1.Type.GSRN96;
}
fromTagURI(uri) {
const value = uri.split(':');
try {
if (value[3] === this.TAG_URI) {
const data = value[4].split('.');
const result = new Gsrn96();
result.setFilter(parseInt(data[0]));
result.setPartition(12 - data[1].length);
result.setCompanyPrefix(parseInt(data[1]));
result.setServiceReference(parseInt(data[2]));
return result;
}
}
catch (e) {
// console.log(e)
}
throw new Error(`${uri} is not a known EPC tag URI scheme`);
}
toTagURI() {
// F.C.S (Filter, Company, Service)
let partition = Gsrn96.PARTITIONS[this.getPartition()];
return Gsrn96.TAG_URI_TEMPLATE(this.getFilter(), this.getSegmentString(partition.a), this.getSegment(partition.b));
}
toIdURI() {
// C.S (Company, Service))
let partition = Gsrn96.PARTITIONS[this.getPartition()];
return Gsrn96.PID_URI_TEMPLATE(this.getSegmentString(partition.a), this.getSegment(partition.b));
}
toBarcode() {
return this.getGsrn();
}
getTotalBits() {
return Gsrn96.TOTAL_BITS;
}
getHeader() {
return Gsrn96.EPC_HEADER;
}
getPartition() {
return super.get(Gsrn96.PARTITION_OFFSET, Gsrn96.PARTITION_END);
}
setPartition(value) {
if (value < 0 || value >= Gsrn96.PARTITIONS.length) {
throw new Error(`Value '${value}' out of range (min: 0, max: ${Gsrn96.PARTITIONS.length - 1})`);
}
super.set(value, Gsrn96.PARTITION_OFFSET, Gsrn96.PARTITION_END);
return this;
}
getGsrn() {
let partition = Gsrn96.PARTITIONS[this.getPartition()];
let companyPrefix = super.getSegmentString(partition.a);
let service = super.getSegmentString(partition.b);
let result = companyPrefix + service;
return result + utils_1.default.computeCheckDigit(result);
}
setGsrn(gsrn) {
let partition = Gsrn96.PARTITIONS[this.getPartition()];
super.setSegment(gsrn.substring(0, partition.a.digits), partition.a);
let tmp = partition.a.digits + partition.b.digits;
super.setSegment(gsrn.substring(partition.a.digits, tmp), partition.b);
return this;
}
getCompanyPrefix() {
return super.getSegment(Gsrn96.PARTITIONS[this.getPartition()].a);
}
setCompanyPrefix(value) {
super.setSegment(value, Gsrn96.PARTITIONS[this.getPartition()].a);
return this;
}
getServiceReference() {
return super.getSegment(Gsrn96.PARTITIONS[this.getPartition()].b);
}
setServiceReference(value) {
super.setSegment(value, Gsrn96.PARTITIONS[this.getPartition()].b);
return this;
}
}
exports.Gsrn96 = Gsrn96;
Gsrn96.EPC_HEADER = 0x2d;
Gsrn96.TOTAL_BITS = 96;
Gsrn96.PARTITION_OFFSET = 11;
Gsrn96.PARTITION_END = 14;
Gsrn96.TAG_URI = 'gsrn-96';
Gsrn96.TAG_URI_TEMPLATE = (filter, company, service) => {
return `urn:epc:tag:${this.TAG_URI}:${filter}.${company}.${service}`;
}; // F.C.S (Filter, Company, Service)
Gsrn96.PID_URI_TEMPLATE = (company, asset) => {
return `urn:epc:id:gsrn:${company}.${asset}`;
}; // C.S (Company, Service)
// Partition table columns: Company prefix, Service Reference
Gsrn96.PARTITIONS = [
new partition_1.Partition(Gsrn96.PARTITION_END, 40, 12, 18, 5),
new partition_1.Partition(Gsrn96.PARTITION_END, 37, 11, 21, 6),
new partition_1.Partition(Gsrn96.PARTITION_END, 34, 10, 24, 7),
new partition_1.Partition(Gsrn96.PARTITION_END, 30, 9, 28, 8),
new partition_1.Partition(Gsrn96.PARTITION_END, 27, 8, 31, 9),
new partition_1.Partition(Gsrn96.PARTITION_END, 24, 7, 34, 10),
new partition_1.Partition(Gsrn96.PARTITION_END, 20, 6, 38, 11),
]; // 6 20 06 38 11