Added getPaidAmount() to ZUGFeRDImporter.java

Added Test

libraryBasic/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDImporter.java

@@ -377,6 +377,22 @@ public class ZUGFeRDImporter {
 		}
 	}
 
+	/**
+	 * @return the TotalPrepaidAmount
+	 */
+	public String getPaidAmount() {
+		try {
+			if (getVersion() == 1) {
+				return extractString("//SpecifiedTradeSettlementMonetarySummation//TotalPrepaidAmount");
+			} else {
+				return extractString("//SpecifiedTradeSettlementHeaderMonetarySummation//TotalPrepaidAmount");
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+			return "";
+		}
+	}
+
 
 	/**
 	 * @return the line Total Amount

libraryBasic/src/test/java/org/mustangproject/ZUGFeRD/ZF2Test.java

@@ -218,6 +218,7 @@ public class ZF2Test extends MustangReaderTestCase {
 		assertEquals(zi.getTaxBasisTotalAmount(), "496.00");
 		assertEquals(zi.getTaxTotalAmount(),"75.04");
 		assertEquals(zi.getRoundingAmount(), "");
+		assertEquals(zi.getPaidAmount(), "0.00");
 		assertEquals(zi.getBuyerTradePartyID(), "DE999999999");
 		assertEquals(zi.getHolder(), getOwnOrganisationName());
 		assertEquals(zi.getDocumentCode(),"380");