protected void diff(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
String topicName = Utilities.getTopicFromRequest(request);
String diffType = request.getParameter("type");
if (diffType != null && diffType.equals("arbitrary")) {
// FIXME - used with history.jsp, this is ugly
int firstVersion = -1;
int secondVersion = -1;
Enumeration e = request.getParameterNames();
while (e.hasMoreElements()) {
String name = (String) e.nextElement();
if (name.startsWith("diff:")) {
int version = Integer.parseInt(name.substring(name.indexOf(':') + 1));
if (firstVersion >= 0) {
secondVersion = version;
} else {
firstVersion = version;
}
}
}
if (firstVersion == -1 || secondVersion == -1) {
next.addObject("badinput", "true");
} else {
Collection diffs =
WikiBase.getDataHandler()
.diff(
topicName,
Math.max(firstVersion, secondVersion),
Math.min(firstVersion, secondVersion));
next.addObject("diffs", diffs);
}
} else {
int topicVersionId1 = 0;
if (StringUtils.hasText(request.getParameter("version1"))) {
topicVersionId1 = new Integer(request.getParameter("version1")).intValue();
}
int topicVersionId2 = 0;
if (StringUtils.hasText(request.getParameter("version2"))) {
topicVersionId2 = new Integer(request.getParameter("version2")).intValue();
}
Collection diffs =
WikiBase.getDataHandler().diff(topicName, topicVersionId1, topicVersionId2);
next.addObject("diffs", diffs);
}
pageInfo.setPageTitle(new WikiMessage("diff.title", topicName));
pageInfo.setTopicName(topicName);
pageInfo.setContentJsp(JSP_DIFF);
}
private void update(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
WikiUser user = Utilities.currentUser();
if (!user.hasRole(Role.ROLE_USER)) {
throw new WikiException(new WikiMessage("watchlist.error.loginrequired"));
}
String topicName = Utilities.getTopicFromRequest(request);
String virtualWiki = Utilities.getVirtualWikiFromURI(request);
Watchlist watchlist = Utilities.currentWatchlist(request, virtualWiki);
WikiBase.getDataHandler()
.writeWatchlistEntry(watchlist, virtualWiki, topicName, user.getUserId(), null);
String article = Utilities.extractTopicLink(topicName);
if (watchlist.containsTopic(topicName)) {
// added to watchlist
next.addObject("message", new WikiMessage("watchlist.caption.added", article));
} else {
// removed from watchlist
next.addObject("message", new WikiMessage("watchlist.caption.removed", article));
}
this.view(request, next, pageInfo);
}
