@ombori/epc-ean
Version:
EPC Tag Data Standard encoding and decoding library, written in javascript
140 lines (139 loc) • 5.48 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Grai96 = 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 Grai96 extends epc_1.Epc {
constructor(hexEpc) {
super(Grai96.TOTAL_BITS);
if (hexEpc) {
super.setFromHexString(hexEpc);
}
else {
super.set(Grai96.EPC_HEADER, epc_1.Epc.EPC_HEADER_OFFSET, epc_1.Epc.EPC_HEADER_END);
}
}
clone() {
return new Grai96().setFromBitArray(this);
}
getType() {
return type_1.Type.GRAI96;
}
fromTagURI(uri) {
const value = uri.split(':');
try {
if (value[3] === this.TAG_URI) {
const data = value[4].split('.');
const result = new Grai96();
result.setFilter(parseInt(data[0]));
result.setPartition(12 - data[1].length);
result.setCompanyPrefix(parseInt(data[1]));
result.setAssetType(parseInt(data[2]));
result.setSerial(parseInt(data[3]));
return result;
}
}
catch (e) {
// console.log(e)
}
throw new Error(`${uri} is not a known EPC tag URI scheme`);
}
toTagURI() {
// F.C.I.S (Filter, Company, Asset Type, Serial)
let partition = Grai96.PARTITIONS[this.getPartition()];
return Grai96.TAG_URI_TEMPLATE(this.getFilter(), this.getSegmentString(partition.a), this.getSegmentString(partition.b), this.getSerial());
}
toIdURI() {
// C.I.S (Company, Asset Type, Serial)
let partition = Grai96.PARTITIONS[this.getPartition()];
return Grai96.PID_URI_TEMPLATE(this.getSegmentString(partition.a), this.getSegmentString(partition.b), this.getSerial());
}
toBarcode() {
return this.getGrai();
}
getTotalBits() {
return Grai96.TOTAL_BITS;
}
getHeader() {
return Grai96.EPC_HEADER;
}
getPartition() {
return super.get(Grai96.PARTITION_OFFSET, Grai96.PARTITION_END);
}
setPartition(value) {
if (value < 0 || value >= Grai96.PARTITIONS.length) {
throw new Error(`Value '${value}' out of range (min: 0, max: ${Grai96.PARTITIONS.length - 1})`);
}
super.set(value, Grai96.PARTITION_OFFSET, Grai96.PARTITION_END);
return this;
}
getGrai() {
let partition = Grai96.PARTITIONS[this.getPartition()];
let companyPrefix = super.getSegmentString(partition.a);
let assetType = super.getSegmentString(partition.b);
let result = companyPrefix + assetType;
return result + utils_1.default.computeCheckDigit(result) + this.getSerial();
}
setGrai(grai) {
let partition = Grai96.PARTITIONS[this.getPartition()];
super.setSegment(grai.substring(0, partition.a.digits), partition.a);
let tmp = partition.a.digits + partition.b.digits;
super.setSegment(grai.substring(partition.a.digits, tmp), partition.b);
this.setSerial(Number(grai.substring(tmp + 1, grai.length)));
return this;
}
getCompanyPrefix() {
return super.getSegment(Grai96.PARTITIONS[this.getPartition()].a);
}
setCompanyPrefix(value) {
super.setSegment(value, Grai96.PARTITIONS[this.getPartition()].a);
return this;
}
getAssetType() {
return super.getSegment(Grai96.PARTITIONS[this.getPartition()].b);
}
setAssetType(value) {
super.setSegment(value, Grai96.PARTITIONS[this.getPartition()].b);
return this;
}
getSerial() {
return super.get(Grai96.SERIAL_OFFSET, Grai96.SERIAL_END);
}
setSerial(value) {
if (value > Grai96.MAX_SERIAL)
throw new Error(`Value '${value}' out of range (min: 0, max: ${Grai96.MAX_SERIAL})`);
super.set(value, Grai96.SERIAL_OFFSET, Grai96.SERIAL_END);
return this;
}
}
exports.Grai96 = Grai96;
Grai96.EPC_HEADER = 0x33;
Grai96.TOTAL_BITS = 96;
Grai96.PARTITION_OFFSET = 11;
Grai96.PARTITION_END = 14;
Grai96.SERIAL_OFFSET = 58;
Grai96.SERIAL_END = Grai96.TOTAL_BITS;
Grai96.SERIAL_BITS = 38;
Grai96.MAX_SERIAL = utils_1.default.getMaxValue(Grai96.SERIAL_BITS); // 274877906943
Grai96.TAG_URI = 'grai-96';
Grai96.TAG_URI_TEMPLATE = (filter, company, asset, serial) => {
return `urn:epc:tag:${this.TAG_URI}:${filter}.${company}.${asset}.${serial}`;
}; // F.C.A.S (Filter, Company, AssetType, Serial)
Grai96.PID_URI_TEMPLATE = (company, asset, serial) => {
return `urn:epc:id:grai:${company}.${asset}.${serial}`;
}; // C.A.S (Company, AssetType, Serial)
// Partition table columns: Company prefix, Asset Type
Grai96.PARTITIONS = [
new partition_1.Partition(Grai96.PARTITION_END, 40, 12, 4, 0),
new partition_1.Partition(Grai96.PARTITION_END, 37, 11, 7, 1),
new partition_1.Partition(Grai96.PARTITION_END, 34, 10, 10, 2),
new partition_1.Partition(Grai96.PARTITION_END, 30, 9, 14, 3),
new partition_1.Partition(Grai96.PARTITION_END, 27, 8, 17, 4),
new partition_1.Partition(Grai96.PARTITION_END, 24, 7, 20, 5),
new partition_1.Partition(Grai96.PARTITION_END, 20, 6, 24, 6),
]; // 6 20 06 24 6