import org.apache.tapestry5.services.PageRenderLinkSource; //导入依赖的package包/类
@Contribute(MarkupRenderer.class)
public static void prepareHTMLPageOnRender(final OrderedConfiguration<MarkupRendererFilter> configuration,
    final RequestGlobals requestGlobals, final PageRenderLinkSource pageRenderLinkSource) {
  configuration.add("AddPageName", new MarkupRendererFilter() {

    @Override
    public void renderMarkup(final MarkupWriter writer, final MarkupRenderer renderer) {

      renderer.renderMarkup(writer);
      Element html = writer.getDocument().find("html");
      if (html != null) {
        Link link = pageRenderLinkSource.createPageRenderLinkWithContext(requestGlobals.getActivePageName());
        for (String parameterName : link.getParameterNames()) {
          link = link.removeParameter(parameterName);
        }
        String url = link.toURI();
        html.attributes("data-page-base-url", url);
      }
    }
  });
}
 

import org.apache.tapestry5.services.PageRenderLinkSource; //导入依赖的package包/类
/**
 * Single constructor of this class.
 * @param tagController a {@link TagController}.
 * @param pageController a {@link PageController}.
 * @param pageActivationContextService a {@link PageActivationContextService}.
 * @param pageRenderLinkSource a {@link PageRenderLinkSource}.
 */
public TagChannelProvider(final TagController tagController, final PageController pageController,
		final PageRenderLinkSource pageRenderLinkSource,
		final PageActivationContextService pageActivationContextService) {
	assert pageController != null;
	assert tagController != null;
	assert pageRenderLinkSource != null;
	assert pageActivationContextService != null;
	this.tagController = tagController;
	this.pageController = pageController;
	this.pageRenderLinkSource = pageRenderLinkSource;
	this.pageActivationContextService = pageActivationContextService;
}