/**
* Generates an XML document containing metadata information as Property elements. The root of the
* document is the element Uploader.
*
* @return an XML document string containing Property elements.
* @throws Exception
*/
public String generateXml() throws Exception {
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document document = builder.newDocument();
Element rootElem = document.createElement("Uploader");
document.appendChild(rootElem);
rootElem.setAttribute("version", xmlVersionNumber);
rootElem.setAttribute("uploadDate", ServiceUtils.formatIso8601Date(new Date()));
// Add application properties (user inputs and application parameters) to XML document.
for (Iterator iter = applicationProperties.entrySet().iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
String propertyName = (String) entry.getKey();
String propertyValue = (String) entry.getValue();
rootElem.appendChild(
createPropertyElement(document, propertyName, propertyValue, "ApplicationProperty"));
}
// Add message properties (user inputs and application parameters) to XML document.
for (Iterator iter = messageProperties.entrySet().iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
String propertyName = (String) entry.getKey();
String propertyValue = (String) entry.getValue();
rootElem.appendChild(
createPropertyElement(document, propertyName, propertyValue, "MessageProperty"));
}
// Add Object request details to XML document.
ObjectAndSignatureRequestDetails[] details =
(ObjectAndSignatureRequestDetails[])
objectRequestList.toArray(
new ObjectAndSignatureRequestDetails[objectRequestList.size()]);
for (int i = 0; i < details.length; i++) {
ObjectAndSignatureRequestDetails objectDetails = details[i];
rootElem.appendChild(createSignatureRequestElement(document, objectDetails));
}
// Serialize XML document to String.
StringWriter writer = new StringWriter();
StreamResult streamResult = new StreamResult(writer);
DOMSource domSource = new DOMSource(document);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer serializer = tf.newTransformer();
serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
serializer.setOutputProperty(OutputKeys.INDENT, "yes");
serializer.transform(domSource, streamResult);
return writer.toString();
}
