closes #576, closes #578

History.md

@@ -7,6 +7,8 @@
 ? log  error IDs 
 - closes #579
 - #581
+- #576
+- #578
 - log error ids
 
 2.15.0

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

@@ -69,6 +69,9 @@ public class Item implements IZUGFeRDExportableItem {
 			icnm.getAsNodeMap("ClassifiedTaxCategory").flatMap(m -> m.getAsBigDecimal("Percent"))
 				.ifPresent(product::setVATPercent);
 		});
+		itemMap.getAsNodeMap("AssociatedDocumentLineDocument").ifPresent(icnm -> {
+			icnm.getAsString("LineID").ifPresent(this::setId);
+		});
 
 		itemMap.getAsNodeMap("Price").ifPresent(icnm -> {
 			// ubl

library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDExportableItem.java

@@ -153,4 +153,12 @@ public interface IZUGFeRDExportableItem extends IAbsoluteValueProvider{
 		return null;
 	}
 
+
+	/***
+	 *
+	 * @return the line ID
+	 */
+	default String getId()  {
+		return null;
+	}
 }

library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java

@@ -401,6 +401,10 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 		int lineID = 0;
 		for (final IZUGFeRDExportableItem currentItem : trans.getZFItems()) {
 			lineID++;
+			String lineIDStr = Integer.toString(lineID);
+			if (currentItem.getId()!=null) {
+				lineIDStr=currentItem.getId();
+			}
 			if (currentItem.getProduct().getTaxExemptionReason() != null) {
 				exemptionReason = "<ram:ExemptionReason>" + XMLTools.encodeXML(currentItem.getProduct().getTaxExemptionReason()) + "</ram:ExemptionReason>";
 			}
@@ -408,7 +412,7 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 			if ((getProfile() != Profiles.getByName("Minimum")) && (getProfile() != Profiles.getByName("BasicWL"))) {
 				xml += "<ram:IncludedSupplyChainTradeLineItem>" +
 					"<ram:AssociatedDocumentLineDocument>"
-					+ "<ram:LineID>" + lineID + "</ram:LineID>"
+					+ "<ram:LineID>" + lineIDStr + "</ram:LineID>"
 					+ buildItemNotes(currentItem)
 					+ "</ram:AssociatedDocumentLineDocument>"
 

library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java

@@ -530,7 +530,7 @@ ZUGFeRDInvoiceImporter zii=new ZUGFeRDInvoiceImporter(TARGET_PDF);
 					.setContractReferencedDocument(contractID)
 					.setRecipient(new TradeParty("Franz Müller", "teststr.12", "55232", "Entenhausen", "DE").addGlobalID(gln).setEmail("recipient@test.org").addVATID("DE4711")
 						.setContact(new Contact("Franz Müller", "01779999999", "franz@mueller.de", "teststr. 12", "55232", "Entenhausen", "DE").setFax("++49555123456")).setAdditionalAddress("Hinterhaus 3"))
-					.addItem(new Item(new Product("Testprodukt", "", "C62", new BigDecimal(16)).addGlobalID(gtin).setSellerAssignedID("4711"), price, new BigDecimal(1.0)).addReferencedLineID("xxx").addNote("item level 1/1").addAllowance(new Allowance(new BigDecimal(0.02)).setReason("item discount").setTaxPercent(new BigDecimal(16))).setDetailedDeliveryPeriod(sdf.parse("2020-01-13"), sdf.parse("2020-01-15")))
+					.addItem(new Item(new Product("Testprodukt", "", "H87", new BigDecimal(16)).addGlobalID(gtin).setSellerAssignedID("4711"), price, new BigDecimal(1.0)).setId("a123").addReferencedLineID("xxx").addNote("item level 1/1").addAllowance(new Allowance(new BigDecimal(0.02)).setReason("item discount").setTaxPercent(new BigDecimal(16))).setDetailedDeliveryPeriod(sdf.parse("2020-01-13"), sdf.parse("2020-01-15")))
 					.addCharge(new Charge(new BigDecimal(0.5)).setReason("quick delivery charge").setTaxPercent(new BigDecimal(16)))
 					.addAllowance(new Allowance(new BigDecimal(0.2)).setReason("discount").setTaxPercent(new BigDecimal(16)))
 					.addCashDiscount(new CashDiscount(new BigDecimal(2), 14))
@@ -562,7 +562,7 @@ ZUGFeRDInvoiceImporter zii=new ZUGFeRDInvoiceImporter(TARGET_PDF);
 		assertTrue(zi.getUTF8().contains(occurrenceFrom));
 		assertTrue(zi.getUTF8().contains(occurrenceTo));
 		assertTrue(zi.getUTF8().contains(contractID));
-
+		assertEquals(zi.importedInvoice.getZFItems()[0].getId(), "a123");
 		assertTrue(zi.getUTF8().contains("20200113")); // to contain item delivery periods
 		assertTrue(zi.getUTF8().contains("20200115")); // to contain item delivery periods