working on first functionality

library/src/main/java/org/mustangproject/Item.java

@@ -172,6 +172,22 @@ public class Item implements IZUGFeRDExportableItem {
 			icnm.getAsNodeMap("ApplicableTradeTax")
 				.flatMap(cnm -> cnm.getAsBigDecimal("RateApplicablePercent", "ApplicablePercent"))
 				.ifPresent(product::setVATPercent);
+			icnm.getAsNodeMap("SpecifiedTradeAllowanceCharge").ifPresent(stac -> {
+				stac.getAsNodeMap("ChargeIndicator").ifPresent(ci -> {
+					String isChargeString=ci.getAsString("Indicator").get();
+					String percentString=stac.getAsStringOrNull("CalculationPercent");
+					String reason=stac.getAsStringOrNull("Reason");
+					Allowance izac=null;
+					if (isChargeString.equalsIgnoreCase("false")) {
+						izac = new Allowance();
+					}
+
+					izac.setPercent(new BigDecimal(percentString));
+					izac.setReason(reason);
+					addAllowance(izac);
+				});
+
+			});
 
 			if (recalcPrice && !BigDecimal.ZERO.equals(quantity)) {
 				icnm.getAsNodeMap("SpecifiedTradeSettlementLineMonetarySummation")

library/src/test/java/org/mustangproject/ZUGFeRD/ZF2ZInvoiceImporterTest.java

@@ -103,6 +103,32 @@ public class ZF2ZInvoiceImporterTest extends ResourceCase {
 
 	}
 
+
+	public void testTheInvoiceImport() {
+
+		ZUGFeRDInvoiceImporter zii = new ZUGFeRDInvoiceImporter("C:\\Users\\jstaerk\\workspace\\XMLExamples\\zfdiverses\\20250108_\\xmlDieWirLesenSollten.xml");
+
+		boolean hasExceptions = false;
+		Invoice invoice = null;
+		try {
+			invoice = zii.extractInvoice();
+		} catch (XPathExpressionException | ParseException e) {
+			hasExceptions = true;
+		}
+		assertFalse(hasExceptions);
+		// Reading ZUGFeRD
+
+		TransactionCalculator tc = new TransactionCalculator(invoice);
+		assertEquals(new BigDecimal("0.00"), tc.getDuePayable());
+		assertEquals(new BigDecimal("0.00"), tc.getGrandTotal());
+
+
+		// name street location zip country, contact name phone email, total amount
+
+	}
+
+
+
 	public void testInvoiceImportUBL() {