return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'parse');
log.info(TAG, 'parsing %j', val);
self.base.parse(val);
var bh = new self.base.bitsHelper(val, 96);
if (bh.bits.slice(0, 8) !== header)
throw new Error(val + ' is not a valid GSRN.');
self.parts.Header = bh.bits.slice(0, 8);
self.parts.Filter = parseInt(bh.bits.slice(8, 11), 2);
self.parts.Partition = parseInt(bh.bits.slice(11, 14), 2);
var companyPrefixEnd = 14 + partition.bits.company[self.parts.Partition];
var company = parseInt(bh.bits.slice(14, companyPrefixEnd), 2).toString();
company = Array(partition.digits.company[self.parts.Partition] - company.length + 1).join('0') + company;
self.parts.CompanyPrefix = company;
var reference = parseInt(bh.bits.slice(companyPrefixEnd, companyPrefixEnd + partition.bits.reference[self.parts.Partition]), 2).toString();
reference = Array(partition.digits.reference[self.parts.Partition] - reference.length + 1).join('0') + reference;
self.parts.ServiceReference = reference;
resolve(self);
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'canParse');
var bh = new self.base.bitsHelper(val, 96);
resolve(bh.bits.slice(0, 8) === header);
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'getUri');
self.base.getUri(val);
self.parse(val)
.then(function(parsed) {
resolve('urn:epc:tag:grai:' + parsed.parts.CompanyPrefix + '.' + parsed.parts.AssetType + '.' + parsed.parts.SerialNumber);
});
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'getUri');
self.base.getUri(val);
self.parse(val)
.then(function(parsed) {
resolve('urn:epc:tag:gid:' + parsed.parts.ManagerNumber + '.' + parsed.parts.ObjectClass + '.' + parsed.parts.SerialNumber);
});
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'getUri');
self.base.getUri(val);
self.parse(val)
.then(function(parsed) {
resolve('urn:epc:tag:gsrn:' + parsed.parts.CompanyPrefix + '.' + parsed.parts.ServiceReference);
});
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'parse');
log.info(TAG, 'parsing %j', val);
// initialize base
self.base.parse(val);
// initalize the bit helper
var bh = new self.base.bitsHelper(val, 96);
// make sure the incoming value is really SGTIN by checking the header
if (bh.bits.slice(0, 8) !== header)
throw new Error(val + ' is not a valid SGTIN.');
// ok, looks good. parse the stuff we'll need to figure out the rest
self.parts.Header = bh.bits.slice(0, 8);
self.parts.Filter = parseInt(bh.bits.slice(8, 11), 2);
self.parts.Partition = parseInt(bh.bits.slice(11, 14), 2);
// find the end of the company portion by calculating the number of bits
// and adding it to the starting offset
var companyPrefixEnd = 14 + partition.bits.company[self.parts.Partition];
// get the company value from the bits, convert to a string
var company = parseInt(bh.bits.slice(14, companyPrefixEnd), 2).toString();
// pad the string with leading zeros to make-up the length according to the calculate length
company = Array(partition.digits.company[self.parts.Partition] - company.length + 1).join('0') + company;
self.parts.CompanyPrefix = company;
var item = parseInt(bh.bits.slice(companyPrefixEnd, companyPrefixEnd + partition.bits.reference[self.parts.Partition]), 2).toString();
item = Array(partition.digits.reference[self.parts.Partition] - item.length + 1).join('0') + item;
self.parts.ItemReference = item;
self.parts.SerialNumber = parseInt(bh.bits.slice(58), 2);
resolve(self);
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
return Q.Promise(function(resolve, reject) {
try {
log.verbose(TAG, 'parse');
log.info(TAG, 'parsing %j', val);
self.base.parse(val);
var bh = new self.base.bitsHelper(val, 96);
if (bh.bits.slice(0, 8) !== header)
throw new Error(val + ' is not a valid GID.');
self.parts.Header = bh.bits.slice(0, 8);
self.parts.ManagerNumber = parseInt(bh.bits.slice(8, 36), 2);
self.parts.ObjectClass = parseInt(bh.bits.slice(36, 60), 2);
self.parts.SerialNumber = parseInt(bh.bits.slice(60), 2);
resolve(self);
} catch (e) {
log.error(TAG, e);
reject(e);
}
});
value: function() {
log.verbose(TAG, 'getName');
return 'GRAI';
}
value: function() {
log.verbose(TAG, 'getName');
return 'SGTIN';
}