first implementation of header allowances

mustang/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDAllowanceCharge.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2015 AlexanderSchmidt.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mustangproject.ZUGFeRD;
+
+import java.math.BigDecimal;
+
+/**
+ *
+ * @author AlexanderSchmidt
+ */
+public interface IZUGFeRDAllowanceCharge {
+    BigDecimal getAmount();
+    
+    String getReason();
+    
+    BigDecimal getTaxPercent();
+    
+}

mustang/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDExportableTransaction.java

@@ -45,6 +45,10 @@ public interface IZUGFeRDExportableTransaction {
 	 * @return
 	 */
 	Date getDueDate();
+        
+        IZUGFeRDAllowanceCharge[] getZFAllowances();
+        IZUGFeRDAllowanceCharge[] getZFCharges();
+        IZUGFeRDAllowanceCharge[] getZFLogisticsServiceCharges();        
 
 	IZUGFeRDExportableItem[] getZFItems();
 

mustang/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporter.java

@@ -476,6 +476,7 @@ public class ZUGFeRDExporter {
         tradeSettlement.getSpecifiedTradeSettlementPaymentMeans().add(this.getPaymentData());
         tradeSettlement.getApplicableTradeTax().addAll(this.getTradeTax());
         tradeSettlement.getSpecifiedTradePaymentTerms().addAll(this.getPaymentTerms());
+        tradeSettlement.getSpecifiedTradeAllowanceCharge().addAll(this.getHeaderAllowances());
         tradeSettlement.setSpecifiedTradeSettlementMonetarySummation(this.getMonetarySummation());
 
         return tradeSettlement;
@@ -545,6 +546,43 @@ public class ZUGFeRDExporter {
         return tradeTaxTypes;
     }
 
+    private Collection<TradeAllowanceChargeType> getHeaderAllowances() {
+        List<TradeAllowanceChargeType> headerAllowances = new ArrayList<TradeAllowanceChargeType>();
+
+        for (IZUGFeRDAllowanceCharge iAllowance : trans.getZFAllowances()) {
+            
+            TradeAllowanceChargeType allowance = xmlFactory.createTradeAllowanceChargeType();
+            
+            IndicatorType chargeIndicator = xmlFactory.createIndicatorType();
+            chargeIndicator.setIndicator(false);
+            allowance.setChargeIndicator(chargeIndicator);
+            
+            TextType reason = xmlFactory.createTextType();
+            reason.setValue(iAllowance.getReason());
+            allowance.setReason(reason);
+            
+            TradeTaxType tradeTax = xmlFactory.createTradeTaxType();
+            
+            PercentType vatPercent = xmlFactory.createPercentType();
+            vatPercent.setValue(iAllowance.getTaxPercent());
+            tradeTax.setApplicablePercent(vatPercent);
+            
+            TaxCategoryCodeType taxType = xmlFactory.createTaxCategoryCodeType();
+            taxType.setValue(TaxCategoryCodeType.STANDARDRATE);
+            tradeTax.setCategoryCode(taxType);
+            
+            TaxTypeCodeType taxCode = xmlFactory.createTaxTypeCodeType();
+            taxCode.setValue(TaxTypeCodeType.SALESTAX);
+            tradeTax.setTypeCode(taxCode);
+            
+            allowance.getCategoryTradeTax().add(tradeTax);
+            headerAllowances.add(allowance);
+            
+        }
+
+        return headerAllowances;
+    }
+
     private Collection<TradePaymentTermsType> getPaymentTerms() {
         List<TradePaymentTermsType> paymentTerms = new ArrayList<TradePaymentTermsType>();
 
@@ -564,7 +602,7 @@ public class ZUGFeRDExporter {
         paymentTerms.add(paymentTerm);
 
         return paymentTerms;
-    }
+    }    
 
     private TradeSettlementMonetarySummationType getMonetarySummation() {
         TradeSettlementMonetarySummationType monetarySummation = xmlFactory.createTradeSettlementMonetarySummationType();