gistfile1

public String replaceImportDLReferences(
			PortletDataContext portletDataContext, Element entityElement,
			String content, boolean importReferencedContent)
		throws Exception {

		List<Element> referenceDataElements =
			portletDataContext.getReferenceDataElements(
				entityElement, FileEntry.class,
				PortletDataContext.REFERENCE_TYPE_DEPENDENCY);

		for (Element referenceDataElement : referenceDataElements) {
			String fileEntryUUID = referenceDataElement.attributeValue("uuid");

			if (fileEntryUUID == null) {
				continue;
			}

			String path = referenceDataElement.attributeValue("path");

			if (!content.contains("[$dl-reference=" + path + "$]")) {
				continue;
			}

			FileEntry fileEntry =
				(FileEntry)portletDataContext.getZipEntryAsObject(path);

			StagedModelDataHandlerUtil.importStagedModel(
				portletDataContext, fileEntry);

			Map<Long, Long> fileEntryIds =
				(Map<Long, Long>)portletDataContext.getNewPrimaryKeysMap(
					DLFileEntry.class);

			String uuid = referenceDataElement.attributeValue("uuid");

			long importGroupId = GetterUtil.getLong(
				referenceDataElement.attributeValue("group-id"));;

			if (importGroupId == portletDataContext.getSourceCompanyGroupId()) {
				importGroupId = portletDataContext.getCompanyGroupId();
			}
			else if (importGroupId == portletDataContext.getSourceGroupId()) {
				importGroupId = portletDataContext.getGroupId();
			}

			FileEntry importedFileEntry = null;

			try {
				importedFileEntry =
					DLAppLocalServiceUtil.getFileEntryByUuidAndGroupId(
						uuid, importGroupId);
			}
			catch (NoSuchFileEntryException nsfee) {
				if (_log.isWarnEnabled()) {
					_log.warn("Unable to reference " + path);
				}

				continue;
			}

			String url = DLUtil.getPreviewURL(
				importedFileEntry, importedFileEntry.getFileVersion(), null,
				StringPool.BLANK, false, false);

			content = StringUtil.replace(
				content, "[$dl-reference=" + path + "$]", url);
		}

		return content;
	}