Código freemarker para pegar url de imagens de conteúdos web no liferay

get_preview_url.ftl

<#-- 
	Configurações para habilitar serviceLocor localizar classes java
	não instanciadas por BaseService e BaseLocalService
		 
	Setar varável em `portal-ext.properties`

  template.engine.service.locator.restrict=false
-->

<#assign
  dlURLHelper = serviceLocator.findService("com.liferay.document.library.util.DLURLHelper")
	dlAppService = serviceLocator.findService("com.liferay.document.library.kernel.service.DLAppService")
  journalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService")
	
	groupId = 0
	articleId = "0"

	article = journalArticleLocalService.getArticle(groupId, articleId)   
  docXml = saxReaderUtil.read(article.getContentByLocale(locale.toString()))

	image = docXml.valueOf("//dynamic-element[@name='imagemDeCapa']/dynamic-content")
	imageProps = dlAppService.getFileEntry(image?eval.fileEntryId?number)
	imageUrl = dlURLHelper.getPreviewURL(imageProps, imageProps.getFileVersion(), themeDisply, "")
>

<div>
	<p>
		${imageUrl}
	</p>
	<img src="${imageUrl}">
</div>