public IContentFormatter getContentFormatter( ISourceViewer sourceViewer){
    ContentFormatter formatter = new ContentFormatter();
    XMLFormattingStrategy formattingStrategy = new XMLFormattingStrategy();
    DefaultFormattingStrategy defaultStrategy = new DefaultFormattingStrategy();
    TextFormattingStrategy textStrategy = new TextFormattingStrategy();
    DocTypeFormattingStrategy doctypeStrategy = new DocTypeFormattingStrategy();
    PIFormattingStrategy piStrategy = new PIFormattingStrategy();
    formatter.setFormattingStrategy(defaultStrategy,
            IDocument.DEFAULT_CONTENT_TYPE);
    formatter.setFormattingStrategy(textStrategy,
            XMLPartitionScanner.XML_TEXT);
    formatter.setFormattingStrategy(doctypeStrategy,
            XMLPartitionScanner.XML_DOCTYPE);
    formatter.setFormattingStrategy(piStrategy, XMLPartitionScanner.XML_PI);
    formatter.setFormattingStrategy(textStrategy,
            XMLPartitionScanner.XML_CDATA);
    formatter.setFormattingStrategy(formattingStrategy,
            XMLPartitionScanner.XML_START_TAG);
    formatter.setFormattingStrategy(formattingStrategy,
            XMLPartitionScanner.XML_END_TAG);
    
    return formatter;
}
 

public static IContentFormatter createFormatter(String partitioning) {
  /*
   * Ideally, we would have no master strategy and two slave strategies, one
   * for XML and one for CSS. The problem is, XMLFormattingStrategy won't work
   * properly since some paired opening and closing tags are spread across
   * different partitions (for example, the <ui:style> tag since the CSS
   * partition will be between the opening and closing tag.)
   */
  IndependentMultiPassContentFormatter formatter = new IndependentMultiPassContentFormatter(
      partitioning, IXMLPartitions.XML_DEFAULT, new StructuredDocumentCloner(
          partitioning, UIBINDER_XML_PARTITIONER_FACTORY));
  formatter.setMasterStrategy(new XMLFormattingStrategy());
  formatter.setSlaveStrategy2(new InlinedCssFormattingStrategy(),
      ICSSPartitions.STYLE);

  /*
   * If the <ui:style> contains a '%' (for example, in something like
   * "width: 50%;"), the XML following the <ui:style> tag will not be
   * formatted. For the '%', the region type is UNDEFINED, and there is no
   * corresponding DOM node. Before formatting, the
   * DefaultXMLPartitionFormatter ensures the current region matches the
   * current DOM node's first region, and since there is no DOM node for the
   * UNDEFINED region, the formatting abruptly stops. To workaround this
   * issue, we replace the CSS with whitespace when the master formatter runs.
   */
  formatter.setReplaceSlavePartitionsDuringMasterFormat(true);

  formatter.setCheckForNonwhitespaceChanges(true);

  return formatter;
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
  IndependentMultiPassContentFormatter formatter = new IndependentMultiPassContentFormatter(
      getConfiguredDocumentPartitioning(sourceViewer),
      IDocument.DEFAULT_CONTENT_TYPE, JAVA_DOCUMENT_CLONER);
  formatter.setMasterStrategy(new JavaFormattingStrategy());
  formatter.setSlaveStrategy2(new JsniFormattingStrategy(),
      GWTPartitions.JSNI_METHOD);
  return formatter;
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
	if (fConfigureFormatter)
		return super.getContentFormatter(sourceViewer);
	else
		return null;
}
 

@Override
protected void doFormatPreview() {
       if (fPreviewText == null) {
           fPreviewDocument.set(""); //$NON-NLS-1$
           return;
       }
       fPreviewDocument.set(fPreviewText);

	fSourceViewer.setRedraw(false);
	final IFormattingContext context = new JavaFormattingContext();
	try {
		final IContentFormatter formatter =	fViewerConfiguration.getContentFormatter(fSourceViewer);
		if (formatter instanceof IContentFormatterExtension) {
			final IContentFormatterExtension extension = (IContentFormatterExtension) formatter;
			context.setProperty(FormattingContextProperties.CONTEXT_PREFERENCES, fWorkingValues);
			context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.valueOf(true));
			extension.format(fPreviewDocument, context);
		} else
			formatter.format(fPreviewDocument, new Region(0, fPreviewDocument.getLength()));
	} catch (Exception e) {
		final IStatus status= new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IJavaStatusConstants.INTERNAL_ERROR,
			FormatterMessages.JavaPreview_formatter_exception, e);
		JavaPlugin.log(status);
	} finally {
	    context.dispose();
	    fSourceViewer.setRedraw(true);
	}
   }
 

@Override
public void bind(IXtextDocument document, IContentFormatter contentFormatter) {
	assert document != null;
	assert contentFormatter != null;
	this.document = document;
	this.contentFormatter = contentFormatter;
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
	return null;
}
 

@Override
public IContentFormatter createConfiguredFormatter(SourceViewerConfiguration cfg, ISourceViewer sourceViewer) {
	return formatter.get();
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
	if (contentFormatterFactory != null)
		return contentFormatterFactory.createConfiguredFormatter(this, sourceViewer);
	return super.getContentFormatter(sourceViewer);
}
 

@Override
public IContentFormatter createConfiguredFormatter(
		SourceViewerConfiguration configuration, ISourceViewer sourceViewer) {
	return new ContentFormatter();
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
	IEditorInput input = getEditor().getEditorInput();
	return input != null ? new TypeScriptContentFormatter(EditorUtils.getResource(input)) : null;
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
  return UiBinderFormatter.createFormatter(getConfiguredDocumentPartitioning(sourceViewer));
}
 

/**
 * Collects the code formatters by the supported content-types and returns a new {@link import
 * org.eclipse.jface.text.formatter.MultiPassContentFormatter} that holds them.<br>
 * The returned content formatter is computed from the result of {@link #getTopContentTypes()}. The first element in
 * the returned array should define the 'master' formatter. While the rest of the elements should contain the
 * 'slave' formatter. <br>
 * Note that each slave formatter is located in the last element of each inner-array that was returned from the
 * getTopContentTypes call.
 */
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer)
{
	final String[][] contentTypes = getTopContentTypes();
	final CommonMultiPassContentFormatter formatter = new CommonMultiPassContentFormatter(
			getConfiguredDocumentPartitioning(sourceViewer), IDocument.DEFAULT_CONTENT_TYPE);
	boolean masterSet = false;
	Set<String> addedFormatters = new HashSet<String>();
	for (String contentTypeArr[] : contentTypes)
	{
		// The first item in the array should contain the master formatter strategy
		// In case it starts with the HTML prefix (like in PHP, ERB etc.), we try to set
		// the master to the HTML formatter.
		if (!masterSet && contentTypeArr[0].startsWith(CONTENTTYPE_HTML_PREFIX))
		{
			if (ScriptFormatterManager.hasFormatterFor(CONTENTTYPE_HTML_PREFIX))
			{
				formatter.setMasterStrategy(CONTENTTYPE_HTML_PREFIX);
				masterSet = true;
				addedFormatters.add(CONTENTTYPE_HTML_PREFIX);
			}
			else
			{
				IdeLog.logWarning(CommonEditorPlugin.getDefault(), MessageFormat.format(
						"Could not located an expected code formatter for ''{0}''", CONTENTTYPE_HTML_PREFIX)); //$NON-NLS-1$
			}
		}
		String contentType = contentTypeArr[contentTypeArr.length - 1];
		if (!addedFormatters.contains(contentType) && ScriptFormatterManager.hasFormatterFor(contentType))
		{
			if (!masterSet)
			{
				formatter.setMasterStrategy(contentType);
				masterSet = true;
			}
			else
			{
				formatter.setSlaveStrategy(contentType);
			}
		}
	}
	return formatter;
}
 

@Override
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
	final MultiPassContentFormatter formatter= new MultiPassContentFormatter(getConfiguredDocumentPartitioning(sourceViewer), IDocument.DEFAULT_CONTENT_TYPE);
	formatter.setMasterStrategy(new JavaFormattingStrategy());
	return formatter;
}
 

/** Create an instance of document auto formatter.
 *
 * @param document the Xtext document associated to this auto-formatter.
 * @param contentFormatter the formatter of content to be used.
 */
default void bind(IXtextDocument document, IContentFormatter contentFormatter) {
	//
}
 

IContentFormatter createConfiguredFormatter(SourceViewerConfiguration configuration, ISourceViewer sourceViewer);