private void view(
HttpServletRequest request,
HttpServletResponse response,
ModelAndView next,
WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromURI(request);
if (StringUtils.isBlank(topicName)) {
String virtualWikiName = pageInfo.getVirtualWikiName();
VirtualWiki virtualWiki = WikiBase.getDataHandler().lookupVirtualWiki(virtualWikiName);
topicName = virtualWiki.getRootTopicName();
}
String virtualWiki = pageInfo.getVirtualWikiName();
if (StringUtils.isBlank(virtualWiki)) {
virtualWiki = VirtualWiki.defaultVirtualWiki().getName();
}
Topic topic = ServletUtil.initializeTopic(virtualWiki, topicName);
if (topic.getTopicId() <= 0) {
// topic does not exist, return 404 and display empty page
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
WikiMessage wikiMessage = new WikiMessage("topic.notcreated");
// topic name is escaped from WikiUtil.getTopicFromURI, so do not double-escape
wikiMessage.setParamsWithoutEscaping(new String[] {topicName});
next.addObject("notopic", wikiMessage);
}
WikiMessage pageTitle = new WikiMessage("topic.title", topicName);
ServletUtil.viewTopic(request, next, pageInfo, pageTitle, topic, true, true);
}
/** Functionality to handle the "Preview" button being clicked. */
private void preview(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromRequest(request);
String virtualWiki = pageInfo.getVirtualWikiName();
String contents = (String) request.getParameter("contents");
Topic previewTopic = new Topic(virtualWiki, topicName);
previewTopic.setTopicContent(contents);
next.addObject("editPreview", "true");
ServletUtil.viewTopic(request, next, pageInfo, null, previewTopic, false, false);
}
/**
* Utility method used when viewing a topic.
*
* @param request The current servlet request object.
* @param next The current Spring ModelAndView object.
* @param pageInfo The current WikiPageInfo object, which contains information needed for
* rendering the final JSP page.
* @param topicName The topic being viewed. This value must be a valid topic that can be loaded as
* a org.jamwiki.model.Topic object.
* @throws Exception Thrown if any error occurs during processing.
*/
protected static void viewTopic(
HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo, String topicName)
throws Exception {
String virtualWiki = WikiUtil.getVirtualWikiFromURI(request);
if (!StringUtils.hasText(virtualWiki)) {
virtualWiki = WikiBase.DEFAULT_VWIKI;
}
Topic topic = ServletUtil.initializeTopic(virtualWiki, topicName);
if (topic.getTopicId() <= 0) {
// topic does not exist, display empty page
next.addObject("notopic", new WikiMessage("topic.notcreated", topicName));
}
WikiMessage pageTitle = new WikiMessage("topic.title", topicName);
viewTopic(request, next, pageInfo, pageTitle, topic, true);
}