zugferdimporter to accept xml files

History.md

@@ -1,5 +1,7 @@
 - EN16931 validation 1.3.11 codelists v11 #357
 - Fonts removed #358
+- xrechnungimporter to read from filename, inputstream
+- zugferdimporter to accept xml files
 
 2.10.0
 =======

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

@@ -1,6 +1,9 @@
 package org.mustangproject;
 
+import java.io.BufferedInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 import java.util.AbstractList;
@@ -25,22 +28,27 @@ public class XMLTools extends XMLWriter {
 	}
 
 	public static List<Node> asList(NodeList n) {
-		return n.getLength()==0?
-			Collections.<Node>emptyList(): new NodeListWrapper(n);
+		return n.getLength() == 0 ?
+			Collections.<Node>emptyList() : new NodeListWrapper(n);
 	}
+
 	static final class NodeListWrapper extends AbstractList<Node>
 		implements RandomAccess {
 		private final NodeList list;
+
 		NodeListWrapper(NodeList l) {
-			list=l;
+			list = l;
 		}
+
 		public Node get(int index) {
 			return list.item(index);
 		}
+
 		public int size() {
 			return list.getLength();
 		}
 	}
+
 	public static String nDigitFormat(BigDecimal value, int scale) {
 		/*
 		 * I needed 123,45, locale independent.I tried
@@ -159,5 +167,21 @@ public class XMLTools extends XMLWriter {
 		return zugferdData;
 	}
 
+	public static byte[] getBytesFromStream(InputStream fileinput) throws IOException {
+
+		// we're on java 8 so we cant use inputstream.readallbytes
+		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+
+		int nRead;
+		byte[] data = new byte[16384];
+		BufferedInputStream bufferedInput=new BufferedInputStream(fileinput);
+
+		while ((nRead = bufferedInput.read(data, 0, data.length)) != -1) {
+			buffer.write(data, 0, nRead);
+		}
+		return buffer.toByteArray();
+
+		// end of polyfill
+	}
 
 }