private Map<String, String> getLocaleLabels(Locale locale) {
Map<String, String> labelMap = new HashMap<String, String>();
ResourceBundle labels = ResourceBundle.getBundle("Messages", locale);
labelMap.put(SyndicationFeed.MSG_UNTITLED, labels.getString(msgKey + ".notitle"));
labelMap.put(SyndicationFeed.MSG_LOGO_TITLE, labels.getString(msgKey + ".logo.title"));
labelMap.put(
SyndicationFeed.MSG_FEED_DESCRIPTION,
labels.getString(msgKey + ".general-feed.description"));
labelMap.put(SyndicationFeed.MSG_UITYPE, SyndicationFeed.UITYPE_JSPUI);
for (String selector : SyndicationFeed.getDescriptionSelectors()) {
labelMap.put(
"metadata." + selector, labels.getString(SyndicationFeed.MSG_METADATA + selector));
}
return labelMap;
}
protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException {
includeAll = ConfigurationManager.getBooleanProperty("harvest.includerestricted.rss", true);
String path = request.getPathInfo();
String feedType = null;
String handle = null;
// build label map from localized Messages resource bundle
Locale locale = request.getLocale();
ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
Map<String, String> labelMap = new HashMap<String, String>();
labelMap.put(SyndicationFeed.MSG_UNTITLED, msgs.getString(clazz + ".notitle"));
labelMap.put(SyndicationFeed.MSG_LOGO_TITLE, msgs.getString(clazz + ".logo.title"));
labelMap.put(
SyndicationFeed.MSG_FEED_DESCRIPTION, msgs.getString(clazz + ".general-feed.description"));
labelMap.put(SyndicationFeed.MSG_UITYPE, SyndicationFeed.UITYPE_JSPUI);
for (String selector : SyndicationFeed.getDescriptionSelectors()) {
labelMap.put("metadata." + selector, msgs.getString(SyndicationFeed.MSG_METADATA + selector));
}
if (path != null) {
// substring(1) is to remove initial '/'
path = path.substring(1);
int split = path.indexOf('/');
if (split != -1) {
feedType = path.substring(0, split);
handle = path.substring(split + 1);
}
}
DSpaceObject dso = null;
// as long as this is not a site wide feed,
// attempt to retrieve the Collection or Community object
if (handle != null && !handle.equals(SITE_FEED_KEY)) {
// Determine if handle is a valid reference
dso = HandleManager.resolveToObject(context, handle);
if (dso == null) {
log.info(LogManager.getHeader(context, "invalid_handle", "path=" + path));
JSPManager.showInvalidIDError(request, response, handle, -1);
return;
}
}
if (!enabled
|| (dso != null
&& (dso.getType() != Constants.COLLECTION && dso.getType() != Constants.COMMUNITY))) {
log.info(LogManager.getHeader(context, "invalid_id", "path=" + path));
JSPManager.showInvalidIDError(request, response, path, -1);
return;
}
// Determine if requested format is supported
if (feedType == null || !formats.contains(feedType)) {
log.info(LogManager.getHeader(context, "invalid_syndformat", "path=" + path));
JSPManager.showInvalidIDError(request, response, path, -1);
return;
}
if (dso != null && dso.getType() == Constants.COLLECTION) {
labelMap.put(
SyndicationFeed.MSG_FEED_TITLE,
MessageFormat.format(
msgs.getString(clazz + ".feed.title"),
msgs.getString(clazz + ".feed-type.collection"),
dso.getMetadata("short_description")));
} else if (dso != null && dso.getType() == Constants.COMMUNITY) {
labelMap.put(
SyndicationFeed.MSG_FEED_TITLE,
MessageFormat.format(
msgs.getString(clazz + ".feed.title"),
msgs.getString(clazz + ".feed-type.community"),
dso.getMetadata("short_description")));
}
// Lookup or generate the feed
// Cache key is handle + locale
String cacheKey = (handle == null ? "site" : handle) + "." + locale.toString();
SyndicationFeed feed = null;
if (feedCache != null) {
CacheFeed cFeed = feedCache.get(cacheKey);
if (cFeed != null) // cache hit, but...
{
// Is the feed current?
boolean cacheFeedCurrent = false;
if (cFeed.timeStamp + (cacheAge * HOUR_MSECS) < System.currentTimeMillis()) {
cacheFeedCurrent = true;
}
// Not current, but have any items changed since feed was created/last checked?
else if (!itemsChanged(context, dso, cFeed.timeStamp)) {
// no items have changed, re-stamp feed and use it
cFeed.timeStamp = System.currentTimeMillis();
cacheFeedCurrent = true;
}
if (cacheFeedCurrent) {
feed = cFeed.access();
}
}
}
// either not caching, not found in cache, or feed in cache not current
if (feed == null) {
feed = new SyndicationFeed(SyndicationFeed.UITYPE_JSPUI);
feed.populate(request, dso, getItems(context, dso), labelMap);
if (feedCache != null) {
cache(cacheKey, new CacheFeed(feed));
}
}
// set the feed to the requested type & return it
try {
feed.setType(feedType);
response.setContentType("text/xml; charset=UTF-8");
feed.output(response.getWriter());
} catch (FeedException fex) {
throw new IOException(fex.getMessage(), fex);
}
}
