Intercept Incoming DeliveryRequestStatus and Store as byte[]

- Add egovutils dependency (Reason: Need DomUtils to serialize /
  unserialize Soap Message via DOMParser)
- Add Incerceptor to MsgClient / -Factory that stores the message
  content byte-by-byte in the DeliveryRepository. The format is
  required for successfully validating a DeliveryRequestStatus.
- Add SoapUtils, which interacts with byte[] Soap message.
- Add CXFMessageUtils, which interacts with CXF Messages from
  interceptor chains.
- Refactor xsd namespaces: Move them out from the PrefixMapper and
  into a dedicated class.

1 files changed, 44 insertions, 0 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/scheme/SOAPUtils.java b/src/main/java/at/gv/egiz/moazs/scheme/SOAPUtils.java
new file mode 100644
index 0000000..2d4df4b
--- /dev/null
+++ b/src/main/java/at/gv/egiz/moazs/scheme/SOAPUtils.java
@@ -0,0 +1,44 @@
+package at.gv.egiz.moazs.scheme;
+
+import at.gv.egiz.moazs.MoaZSException;
+import at.gv.util.DOMUtils;
+import org.apache.cxf.binding.soap.Soap11;
+import org.springframework.stereotype.Component;
+import org.w3c.dom.Element;
+import org.xml.sax.SAXException;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.TransformerException;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+@Component
+public class SOAPUtils {
+
+    public Element toDOM(byte[] bytes) throws IOException, SAXException, ParserConfigurationException {
+        var stream = new ByteArrayInputStream(bytes);
+        return DOMUtils.parseXmlNonValidating(stream);
+    }
+
+    public byte[] unwrapSoapEnvelope(Element document)  {
+        try {
+            var body = document.getElementsByTagNameNS(Soap11.SOAP_NAMESPACE, "Body");
+            var item = body.item(0).getFirstChild();
+
+            return DOMUtils.serializeNode(item, true)
+                    .getBytes(StandardCharsets.UTF_8);
+
+        } catch (IOException | TransformerException e) {
+            throw new MoaZSException("Error while parsing message. ", e);
+        }
+    }
+
+    public String getAppDeliveryIDFrom(Element document) {
+        var elements = document.getElementsByTagNameNS(NameSpace.MSG, "AppDeliveryID");
+
+        var appDeliveryIdElement = elements.item(0).getFirstChild();
+
+        return appDeliveryIdElement.getNodeValue();
+    }
+}