Question

I have a java class that applies an xslt to all xml files in a directory and performs a transformation on every xml it finds and prints out the complete filename.

My question is how would I create an xml (Files.xml),which would have the following format, and then ouputs the file name, file type and file extension to Files.xml?

<files>   <file>     <name> ThisFile </name>     <type> xml </type>     <extension> .xml </extension>   </file>    <file>     <name> AnotherFile </name>     <type> xml </type>     <extension> .xml </extension>   </file>    etc.... </files> 

Once again I appreciate any and all help I get!

Answer 1

I would recommend using a serialization utility like JAXB or XStream to serialize the file model directly but I leave you here a small sample that builds the document from scratch.

public void serializeXmlFiles(ArrayList<File> files) throws ParserConfigurationException, TransformerException {     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();     DocumentBuilder db = dbf.newDocumentBuilder();     Document doc = db.newDocument();      Element filesElement = doc.createElement('files');     doc.appendChild(filesElement);      for (File file : files) {         Element fileElement = doc.createElement('file');         Element nameElement = doc.createElement('name');         nameElement.setTextContent(file.getName());         Element typeElement = doc.createElement('type');         typeElement.setTextContent('xml');         Element extElement = doc.createElement('extension');         extElement.setTextContent('.xml');          fileElement.appendChild(nameElement);         fileElement.appendChild(typeElement);         fileElement.appendChild(extElement);         filesElement.appendChild(fileElement);     }      saveXMLDocument('files.xml', doc); }  public boolean saveXMLDocument(String fileName, Document doc) throws TransformerException {     File xmlOutputFile = new File(fileName);     FileOutputStream fos;     Transformer transformer;     try {         fos = new FileOutputStream(xmlOutputFile);     } catch (FileNotFoundException e) {         return false;     }     TransformerFactory transformerFactory = TransformerFactory.newInstance();      transformer = transformerFactory.newTransformer();      DOMSource source = new DOMSource(doc);     StreamResult result = new StreamResult(fos);      transformer.transform(source, result);     return true; } 

Hope it helps.