====== Code zu ValidateGLN, ValidateBarcode, Abs ====== using System; using eBiss.Api; namespace Map { /// /// Sample class containing mapping function(s) /// /// This class must inherit from eBiss.Api.IMapFunctionExtender and should use logging /// via eBiss.Api.ILoggingObject /// public class fun : IMapFunctionExtender, ILoggingObject { /// /// Validate GLN checks if a given value has 13 digits and is a valid Barcode number /// /// /// //TRUE/FALSE /// //Usage: Map.fun.ValidateGLN(41235746687) [eBiss.Api.MappingFunction] public Boolean ValidateGLN(string value) { bool check; check = ((value.Length == 13) & (isValidBarcodeWithCheckDigit(value))); //check if value is a valid Barcode and has 13 digits //if (value.Length != 13) //check if it has the required length // //throw new ApplicationException("GLNs must have 13 digits!"); // check = false; Log.Info("ValidateGLN('{0}') returns {1}", value, check); if (!check) throw new ApplicationException("GLN('" + value + "') is " + (check ? "valid" : "invalid")); return check; } /// /// Validate Barcode /// /// /// //TRUE/FALSE /// //Usage: Map.fun.ValidateBarCode(41235746687) [eBiss.Api.MappingFunction] public Boolean ValidateBarcode(string value) { Log.Info("ValidateBarcode('{0}') returns {1}", value, isValidBarcodeWithCheckDigit(value)); return isValidBarcodeWithCheckDigit(value); } /// /// Absolute Value /// /// /// /// //Usage: Map.fun.Abs(-1) [eBiss.Api.MappingFunction] public NullableNumeric Abs(NullableNumeric value) { Log.Info("Abs(" + value + ")"); return Math.Abs(value); } private eBiss.Api.ILogContext logContext; public eBiss.Api.ILogContext Log { get { return logContext; } set { logContext = value; } } private static char GetBarcodeChecksumWithLegacyCode(string barcodeWithoutCheckSum) { if (barcodeWithoutCheckSum.Length > 6) { int a = 0; int b = 0; int j = barcodeWithoutCheckSum.Length - 1; int i = j; while (i >= 0) { a = a + barcodeWithoutCheckSum[i] - 48; i = i - 2; } j = barcodeWithoutCheckSum.Length - 2; i = j; while (i >= 0) { b = b + barcodeWithoutCheckSum[i] - 48; i = i - 2; } a = 3 * a + b; b = a % 10; if (b != 0) b = 10 - b; var ch = (char)(48 + b); return ch; } return ' '; } public static string GetBarcodeChecksum(string barcode) { int oddTotal; int oddTotalTripled; int evenTotal; // Which positions are odd or even depend on the length of the barcode, // or more specifically, whether its length is odd or even, so: if (isStringOfEvenLen(barcode)) { oddTotal = sumInsideOrdinals(barcode); oddTotalTripled = oddTotal * 3; evenTotal = sumOutsideOrdinals(barcode); } else { oddTotal = sumOutsideOrdinals(barcode); oddTotalTripled = oddTotal * 3; evenTotal = sumInsideOrdinals(barcode); } int finalTotal = oddTotalTripled + evenTotal; int modVal = finalTotal % 10; int czechSum = 10 - modVal; if (czechSum == 10) { return "0"; } return czechSum.ToString(); } private static bool isStringOfEvenLen(string barcode) { return (barcode.Length % 2 == 0); } // "EvenOrdinals" instead of "EvenVals" because values at index 0,2,4,etc. are seen by the // checkdigitmeisters as First, Third, Fifth, ... (etc.), not Zeroeth, Second, Fourth private static int sumInsideOrdinals(string barcode) { int cumulativeVal = 0; for (int i = barcode.Length - 1; i > -1; i--) { if (i % 2 != 0) { cumulativeVal += Convert.ToInt16(barcode[i] - '0'); } } return cumulativeVal; } // "OddOrdinals" instead of "OddVals" because values at index 1,3,5,etc. are seen by the // checkdigitmeisters as Second, Fourth, Sixth, ..., not First, Third, Fifth, ... private static int sumOutsideOrdinals(string barcode) { int cumulativeVal = 0; for (int i = barcode.Length - 1; i > -1; i--) { if (i % 2 == 0) { cumulativeVal += Convert.ToInt16(barcode[i] - '0'); } } return cumulativeVal; } private static bool isValidBarcodeWithCheckDigit(string barcodeWithCheckDigit) { string barcodeSansCheckDigit = barcodeWithCheckDigit.Substring(0, barcodeWithCheckDigit.Length - 1); string czechDigit = barcodeWithCheckDigit.Substring(barcodeWithCheckDigit.Length - 1, 1); //MessageBox.Show(string.Format("raw barcode portion is {0}", barcodeSansCheckDigit)); //MessageBox.Show(string.Format("czech portion is {0}", czechDigit)); return GetBarcodeChecksum(barcodeSansCheckDigit) == czechDigit; } } }