Hi All,
I have resolved the issue, by applying a mapping program JAVA, which converts the content-type of the two parts of the message body, adding the data I needed.
To do this, I build on the following Blogs:
HTML MultiPart Form upload using HTTP Plain adapter with Java mapping
Create email with body and attachments for binary payload with Java mapping
And here's the solution:
File CreateForm.java
package com.sap.map.multipart;
import java.io.*;
import java.util.Collection;
import java.util.Iterator;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import com.sap.aii.mapping.api.AbstractTrace;
import com.sap.aii.mapping.api.AbstractTransformation;
import com.sap.aii.mapping.api.Attachment;
import com.sap.aii.mapping.api.StreamTransformationException;
import com.sap.aii.mapping.api.TransformationInput;
import com.sap.aii.mapping.api.TransformationOutput;
public class CreateForm extends AbstractTransformation {
private static final String LINE_FEED = "\r\n";
private String contentType1;
private String contentType2;
@SuppressWarnings("unchecked")
public void transform (TransformationInput in, TransformationOutput out)
throws StreamTransformationException {
AbstractTrace trace = getTrace();
String json = new String();
InputStream ins = in.getInputPayload().getInputStream();
try{
//***************************************************************
//Get document XML from input stream.
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(ins);
//***************************************************************
//***************************************************************
//Convertir XML a JSON - y Escribir nuevo Payload con content-type editado
//***************************************************************
//Instanciamos la clase para convertir el Payload
ParseDocument pDoc = new ParseDocument();
//Guardamos el nuevo Payload en variable String
json = pDoc.ConvertDocumentXML2JSON(doc);
//Editamos un nuevo content-type para el encabezado del Payload
contentType2 = "text/plain;charset=us-ascii" + LINE_FEED
+ "content-transfer-encoding:7bit" + LINE_FEED
+ "content-disposition:form-data;name=\"document\"";
//Grabamos el nuevo contentype en el Header del Payload
out.getOutputHeader().setContentType(contentType2);
//Convertimos en Bytes el String nuevo y lo grabamos en la salida
byte[] message = json.getBytes("UTF-8");
//Escribimo el Output Pay-load
out.getOutputPayload().getOutputStream().write(message);
//***************************************************************
//***************************************************************
//Reescribimos el Header del Adjunto y grabamos el nuevo
//***************************************************************
//Se obtienen los ContentID de los Adjuntos
Collection<String> contId = in.getInputAttachments().getAllContentIds(false);
String contentId = null;
//Iteramos para obtener el String del ContentID
for (Iterator iterator = contId.iterator(); iterator.hasNext();) {
contentId = (String) iterator.next();
}
//Creamos un Objeto Adjunto de entrada y lo tomamos con el ContentID obtenido
Attachment adjuntoIn = in.getInputAttachments().getAttachment(contentId);
//Guardamos en Variables los 3 parámetros del adjunto de entrada
//1) ContentID ya lo teniamos
//2) el contenido del archivo en Bytes[]
byte[] content = adjuntoIn.getContent();
//3) el content-type del header del adjunto
contentType1 = adjuntoIn.getContentType();
//Editamos el content-type del header del adjunto al valor nuevo deseado
contentType1 = contentType1 + LINE_FEED
+ "content-transfer-encoding:binary" + LINE_FEED
+ "content-disposition:form-data;name=\"" + contentId +"\";filename=\"" + contentId + "\"";
//Eliminamos de la Salida el Adjunto que teniamos
out.getOutputAttachments().removeAttachment(contentId);
//Creamos un nuevo adjunto con los valores deseados
Attachment adjuntoOut = out.getOutputAttachments().create(contentId, contentType1, content);
//Seteamos el nuevo adjunto como adjunto de Salida
out.getOutputAttachments().setAttachment(adjuntoOut);
//***************************************************************
//***************************************************************
} catch (Exception e) {
trace.addDebugMessage(e.getMessage());
}
}
}
I used a helper class to convert the XML document into JSON:
File ParseDocument.java
package com.sap.map.multipart;
import org.w3c.dom.CharacterData;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
public class ParseDocument {
public String ConvertDocumentXML2JSON(Document doc) {
String xmlParse = "";
try {
doc.getDocumentElement().normalize();
//Get the node List that contains the node "document"...
Element nodoRaiz = null;
NodeList listaNodos = null;
Node nodo = null;
Element elem = null;
xmlParse = "{ ";
NodeList documentNode = doc.getElementsByTagName("n0:Document");
nodoRaiz = (Element) documentNode.item(0);
listaNodos = nodoRaiz.getChildNodes();
for (int i = 0; i < listaNodos.getLength(); i++) {
nodo = listaNodos.item(i);
if (nodo instanceof Element) {
elem = (Element) nodo;
if (xmlParse != "{ "){xmlParse = xmlParse + ", ";}
xmlParse = xmlParse +"\""
+elem.getNodeName()
+"\": \""
+getCharacterDataFromElement(elem)
+ "\"";
}
}
xmlParse = xmlParse + " }";
} catch (Exception e) {
System.out.println(e.getMessage());
}
return xmlParse;
}
public static String getCharacterDataFromElement(Element e) {
String texto = "";
Node child = e.getFirstChild();
if (child instanceof CharacterData) {
CharacterData cd = (CharacterData) child;
texto = cd.getData();
return texto;
}
return "";
}
}