Examples of org.jdom.output.XMLOutputter

org.jdom.output.XMLOutputter
Outputs a JDOM document as a stream of bytes. The outputter can manage many styles of document formatting, from untouched to pretty printed. The default is to output the document content exactly as created, but this can be changed by setting a new Format object. For pretty-print output, use {@link Format#getPrettyFormat()}. For whitespace-normalized output, use {@link Format#getCompactFormat()}.
There are {@link #output output(...)} methods to print any of the standard JDOM classes, including Document and Element, to either a Writer or an OutputStream. Warning: When outputting to a Writer, make sure the writer's encoding matches the encoding setting in the Format object. This ensures the encoding in which the content is written (controlled by the Writer configuration) matches the encoding placed in the document's XML declaration (controlled by the XMLOutputter). Because a Writer cannot be queried for its encoding, the information must be passed to the Format manually in its constructor or via the {@link Format#setEncoding} method. The default encoding is UTF-8.
The methods {@link #outputString outputString(...)} are for convenience only; for top performance you should call one of the {@link #output output(...)} methods and pass in your own Writer or OutputStream if possible.
XML declarations are always printed on their own line followed by a line seperator (this doesn't change the semantics of the document). To omit printing of the declaration use {@link Format#setOmitDeclaration}. To omit printing of the encoding in the declaration use {@link Format#setOmitEncoding}. Unfortunatly there is currently no way to know the original encoding of the document.
Empty elements are by default printed as <empty/>, but this can be configured with {@link Format#setExpandEmptyElements} to cause them to be expanded to <empty></empty>. @version $Revision: 1.117 $, $Date: 2009/07/23 05:54:23 $ @author Brett McLaughlin @author Jason Hunter @author Jason Reid @author Wolfgang Werner @author Elliotte Rusty Harold @author David & Will (from Post Tool Design) @author Dan Schaffer @author Alex Chaffee @author Bradley S. Huffman

  public void write(Writer writer) throws IOException 
  {
    // build document from registry data structures
    Document document = buildDocument();
    
    XMLOutputter xmlOutputter = new XMLOutputter();
    xmlOutputter.setFormat(Format.getPrettyFormat());


    xmlOutputter.output(document, writer);
  }

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        Element contentChild = (Element) iter.next();
        String name = contentChild.getName();


        /* Expected DIV Child */
        if ("div".equals(name)) { //$NON-NLS-1$
          XMLOutputter out = new XMLOutputter();
          StringWriter writer = new StringWriter();


          try {
            out.output(contentChild.getContent(), writer);
            writer.close();
          } catch (IOException e) {
            /* This should not happen */
          }

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            }
            if (isValid == false) {
              String errorMsg = outDoc.getRootElement().getName() +
                " document is not valid after TransRoute modifications.  Can't forward message.";
              logger.fatal(errorMsg);
              XMLOutputter xmlOut = new XMLOutputter();
              logger.fatal("Document content is: \n" + xmlOut.outputString(outDoc));


              ArrayList errors = new ArrayList();
              errors.add(buildError("system", "OpenEAI_ROUTER-2007", errorMsg));
              publishSyncError(eControlArea, errors);
              continue;

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                applicationsElement.addContent(applicationElement);
            }


            doc.setRootElement(rootElement);
            /* write to the disc */
            XMLOutputter writer = new XMLOutputter();
            writer.output(doc, new FileOutputStream(ConfigConstants.DEFAULT_CONFIG_FILE_NAME));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

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        Element contentChild = (Element) iter.next();
        String name = contentChild.getName();


        /* Expected DIV Child */
        if ("div".equals(name)) { //$NON-NLS-1$
          XMLOutputter out = new XMLOutputter();
          StringWriter writer = new StringWriter();


          try {
            out.output(contentChild.getContent(), writer);
            writer.close();
          } catch (IOException e) {
            /* This should not happen */
          }

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   */
  public void write(Writer writer) throws IOException {
    // build document from registry data structures
    Document document = buildDocument();
    
    XMLOutputter xmlOutputter = new XMLOutputter();
    xmlOutputter.setFormat(Format.getPrettyFormat());


    xmlOutputter.output(document, writer);
  }

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   * java.util.Collection, java.util.Set)
   */
  public void exportTo(File destination, Collection<? extends IFolderChild> elements, Set<Options> options) throws InterpreterException {
    Format format = Format.getPrettyFormat();
    format.setEncoding(UTF_8);
    XMLOutputter output = new XMLOutputter(format);
    DateFormat dateFormat = DateFormat.getDateInstance();


    Document document = new Document();
    Element root = new Element(Tag.OPML.get());
    root.setAttribute(Attributes.VERSION.get(), "1.1"); //$NON-NLS-1$
    root.addNamespaceDeclaration(RSSOWL_NS);
    document.setRootElement(root);


    /* Head */
    Element head = new Element(Tag.HEAD.get());
    root.addContent(head);


    Element title = new Element(Tag.TITLE.get());
    title.setText(Messages.OPMLExporter_RSSOWL_SUBSCRIPTIONS);
    head.addContent(title);


    Element dateModified = new Element(Tag.DATE_MODIFIED.get());
    dateModified.setText(new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z").format(new Date())); //$NON-NLS-1$
    head.addContent(dateModified);


    /* Body */
    Element body = new Element(Tag.BODY.get());
    root.addContent(body);


    boolean exportPreferences = (options != null && options.contains(Options.EXPORT_PREFERENCES));


    /* Export Folder Childs */
    if (elements != null && !elements.isEmpty()) {
      Map<IFolder, Element> mapFolderToElement = new HashMap<IFolder, Element>();
      mapFolderToElement.put(null, body);


      /* Ensure that all Parent Elements exist */
      repairHierarchy(mapFolderToElement, elements, exportPreferences);


      /* Now export Elements */
      exportFolderChilds(mapFolderToElement, elements, exportPreferences, dateFormat);
    }


    /* Export Labels */
    if (options != null && options.contains(Options.EXPORT_LABELS))
      exportLabels(body);


    /* Export Filters */
    if (options != null && options.contains(Options.EXPORT_FILTERS))
      exportFilters(body, dateFormat);


    /* Export Preferences */
    if (exportPreferences)
      exportPreferences(body);


    /* Write to File */
    FileOutputStream out = null;
    try {
      out = new FileOutputStream(destination);
      output.output(document, out);
      out.close();
    } catch (FileNotFoundException e) {
      throw new InterpreterException(Activator.getDefault().createErrorStatus(e.getMessage(), e));
    } catch (IOException e) {
      throw new InterpreterException(Activator.getDefault().createErrorStatus(e.getMessage(), e));

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                }
                rootElement.addContent(userElement);
            }
            doc.setRootElement(rootElement);
            /* write to the disc */
            XMLOutputter writer = new XMLOutputter();
            writer.output(doc, new FileOutputStream(AuthConstants.USER_CONFIG_FILE_NAME));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

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    }


    // create XML outputter with indent: 2 spaces, print new lines.
    Format format = Format.getPrettyFormat();
    format.setEncoding(encoding);
    XMLOutputter outputter = new XMLOutputter(format);
    
    // ----
    Element rootElem = new Element("rss");
    rootElem.setAttribute("version", RSS_VERSION);
    Element channelElem = new Element("channel");
            
    channelElem.addContent(new Element("title").setText(channel.getTitle()));
    
    channelElem.addContent(new Element("description")
                           .setText(channel.getDescription()));
    if (channel.getSite() != null) {
      channelElem.addContent(new Element("link")
                             .setText(channel.getSite().toString()));
    }
    if (channel.getLanguage() != null) {
      channelElem.addContent(new Element("language")
                             .setText(channel.getLanguage()));
    }


    Collection items = channel.getItems();
    Iterator it = items.iterator();
    while (it.hasNext()) {
      ItemIF item = (ItemIF) it.next();
      Element itemElem = new Element("item");
      itemElem.addContent(new Element("title").setText(item.getTitle()));
      if (item.getLink() != null) {
        itemElem.addContent(new Element("link")
                            .setText(item.getLink().toString()));
      }
      if (item.getDescription() != null) {
        itemElem.addContent(new Element("description")
                            .setText(item.getDescription()));
      }
      if (item.getDate() != null) {
        itemElem.addContent(new Element("pubDate")
                            .setText(ParserUtils.formatDate(item.getDate())));
      }
      channelElem.addContent(itemElem);
    }


    // export channel image            
    if (channel.getImage() != null) {
      Element imgElem = new Element("image");
      imgElem.addContent(new Element("title")
                         .setText(channel.getImage().getTitle()));
      imgElem.addContent(new Element("url")
                         .setText(channel.getImage().getLocation().toString()));
      imgElem.addContent(new Element("link")
                         .setText(channel.getImage().getLink().toString()));
      imgElem.addContent(new Element("height")
                         .setText("" + channel.getImage().getHeight()));
      imgElem.addContent(new Element("width")
                         .setText("" + channel.getImage().getWidth()));
      imgElem.addContent(new Element("description")
                         .setText(channel.getImage().getDescription()));
      channelElem.addContent(imgElem);
    }
     
    // TODO: add exporting textinput field
    //     if (channel.getTextInput() != null) {
    //       channelElem.addContent(channel.getTextInput().getElement());
    //     }


    if (channel.getCopyright() != null) {
      channelElem.addContent(new Element("copyright")
                             .setText(channel.getCopyright()));
    }


    // we have all together for the channel definition
    rootElem.addContent(channelElem);
    // ---
    DocType docType = new DocType("rss", PUBLIC_ID, SYSTEM_ID);
    Document doc = new Document(rootElem, docType);
    outputter.output(doc, writer);
  }

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    }


    // create XML outputter with indent: 2 spaces, print new lines.
    Format format = Format.getPrettyFormat();
    format.setEncoding(encoding);
    XMLOutputter outputter = new XMLOutputter(format);


    Namespace defNs = Namespace.getNamespace(NS_DEFAULT);
    Namespace rdfNs = Namespace.getNamespace("rdf", NS_RDF);
    Namespace dcNs = Namespace.getNamespace("dc", NS_DC);
    Namespace syNs = Namespace.getNamespace("sy", NS_SY);
    
    // ----
    Element rootElem = new Element("RDF", rdfNs);
    rootElem.addNamespaceDeclaration(defNs);
    rootElem.addNamespaceDeclaration(dcNs);
    rootElem.addNamespaceDeclaration(syNs);
    // rootElem.setAttribute("version");
    Element channelElem = new Element("channel", defNs);
    if (channel.getLocation() != null) {
      channelElem.setAttribute("about",
                               channel.getLocation().toString(), rdfNs);
    }
    channelElem.addContent(new Element("title", defNs)
                           .setText(channel.getTitle()));
    if (channel.getSite() != null) {
      channelElem.addContent(new Element("link", defNs)
                             .setText(channel.getSite().toString()));
      channelElem.addContent(new Element("source", dcNs)
                             .setAttribute("resource",
                                           channel.getSite().toString()));
    }


    channelElem.addContent(new Element("description", defNs)
                           .setText(channel.getDescription()));
    if (channel.getLanguage() != null) {
      channelElem.addContent(new Element("language", dcNs)
                             .setText(channel.getLanguage()));
    }
    if (channel.getCopyright() != null) {
      channelElem.addContent(new Element("copyright", dcNs)
                             .setText(channel.getCopyright()));
    }
    if (channel.getUpdateBase() != null) {
      channelElem.addContent(new Element("updateBase", syNs)
                             .setText(df.format(channel.getUpdateBase())));
    }
    if (channel.getUpdatePeriod() != null) {
      // don't put out frequency without specifying period
      channelElem.addContent(new Element("updateFrequency", syNs)
                             .setText((new Integer(channel.getUpdateFrequency())).toString()));
      channelElem.addContent(new Element("updatePeriod", syNs)
                             .setText(channel.getUpdatePeriod().toString()));
    }
    // export channel image            
    if (channel.getImage() != null) {
      Element imgElem = new Element("image", defNs);
      imgElem.addContent(new Element("title", defNs)
                         .setText(channel.getImage().getTitle()));
      imgElem.addContent(new Element("url", defNs)
                         .setText(channel.getImage().getLocation().toString()));
      imgElem.addContent(new Element("link", defNs)
                         .setText(channel.getImage().getLink().toString()));
      imgElem.addContent(new Element("height", defNs)
                         .setText("" + channel.getImage().getHeight()));
      imgElem.addContent(new Element("width", defNs)
                         .setText("" + channel.getImage().getWidth()));
      imgElem.addContent(new Element("description", defNs)
                         .setText(channel.getImage().getDescription()));
      channelElem.addContent(imgElem);
    }
     
    // TODO: add exporting textinput field
    //     if (channel.getTextInput() != null) {
    //       channelElem.addContent(channel.getTextInput().getElement());
    //     }


    // ===========================================
    Element itemsElem = new Element("items", defNs);
    Element seqElem = new Element("Seq", rdfNs);
    Collection items = channel.getItems();
    Iterator it = items.iterator();
    while (it.hasNext()) {
      ItemIF item = (ItemIF) it.next();
      Element itemElem = new Element("li", rdfNs);
      if (item.getLink() != null) {
        itemElem.setAttribute("resource", item.getLink().toString());
      }
      seqElem.addContent(itemElem);
    }
    itemsElem.addContent(seqElem);
    channelElem.addContent(itemsElem);
    rootElem.addContent(channelElem);


    // item-by-item en detail
    items = channel.getItems();
    it = items.iterator();
    while (it.hasNext()) {
      ItemIF item = (ItemIF) it.next();
      Element itemElem = new Element("item", defNs);
      if (item.getLink() != null) {
        itemElem.setAttribute("about",
                              item.getLink().toString(), rdfNs);
      }
      itemElem.addContent(new Element("title", defNs).setText(item.getTitle()));
      if (item.getLink() != null) {
        itemElem.addContent(new Element("link", defNs)
                            .setText(item.getLink().toString()));
      }
      if (item.getDescription() != null) {
        itemElem.addContent(new Element("description", dcNs)
                            .setText(item.getDescription()));
      }
      if (item.getDate() != null) {
        itemElem.addContent(new Element("date", dcNs)
                            .setText(ParserUtils.formatDate(item.getDate())));
      }
                          
      rootElem.addContent(itemElem);
    }


    // ---
    Document doc = new Document(rootElem);
    outputter.output(doc, writer);
    // ---
    writer.close();
  }

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