@SuppressWarnings("unchecked")
public Collection<Point> getSearchPointsForLine(
Key<Line> l, String geoCell, int plusMinusIndex, Objectify ofy) {
String functionName = "getSearchPointsForLine(String geoCell)";
Query<Point> q =
ofy.query(Point.class)
.ancestor(l)
.filter("ignore", false)
.filter("defaultGeoCell", geoCell)
.limit(1);
Key<Point> kMiddle;
try {
Cache cache =
CacheManager.getInstance().getCacheFactory().createCache(Collections.emptyMap());
kMiddle = (Key<Point>) cache.get(q.toString());
if (kMiddle == null) {
kMiddle = q.getKey();
cache.put(q.toString(), kMiddle);
}
} catch (CacheException e) {
kMiddle = q.getKey();
Logger.getLogger(location).log(Level.SEVERE, functionName + ": Cache error: " + e);
e.printStackTrace();
}
if (kMiddle
== null) { // dirty hack, but still better than failing in case that no point was found
q = ofy.query(Point.class).ancestor(l).filter("defaultGeoCell", geoCell).limit(1);
kMiddle = q.getKey();
System.err.println(
"had to resort to dirty hack and retrieve a point that is set to ignore for line "
+ l
+ " in cell "
+ geoCell
+ ". Result: "
+ kMiddle);
}
try {
Point middle = ofy.get(kMiddle);
Collection<Point> points;
if (plusMinusIndex > 0) {
points = getSearchPointsForLine(l, middle.getIndex(), plusMinusIndex, ofy);
} else {
points = new LinkedList<Point>();
points.add(middle);
}
return points;
} catch (NullPointerException e) {
q = ofy.query(Point.class).ancestor(l).filter("ignore", false);
System.err.println(
"because of "
+ e
+ " had to resort to even dirtier hack and retrieve all potential points for line "
+ l
+ ", even those not in cell "
+ geoCell);
return q.list();
}
}
private void listMessages(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
resp.setCharacterEncoding("UTF-8");
if (!IrssiNotifier.versionCheck(req.getParameter("version"))) {
IrssiNotifier.printError(resp.getWriter(), new OldVersionException());
return;
}
String id = req.getParameter("apiToken");
String guid = req.getParameter("guid");
if (id == null || guid == null || id.equals("") || guid.equals("")) {
IrssiNotifier.printError(resp.getWriter(), "Virheellinen pyyntö");
return;
}
ObjectifyDAO dao = new ObjectifyDAO();
try {
IrssiNotifierUser user = IrssiNotifier.getUser(dao, id);
Query<Message> messages =
dao.ofy().query(Message.class).order("-timestamp").ancestor(user).limit(LIMIT + 1);
String starting = req.getParameter("starting");
if (starting != null) {
try {
long startingTimestamp = Long.parseLong(starting);
messages = messages.filter("timestamp <=", startingTimestamp);
} catch (NumberFormatException e) {
}
}
Message next = null;
if (messages.count() == LIMIT + 1) {
IrssiNotifier.log.info("Lisää viestejä on saatavilla");
next = messages.list().get(LIMIT);
} else {
IrssiNotifier.log.info("Sisältää viestihistorian viimeiset viestit");
}
MessageListResponse response = new MessageListResponse(messages.limit(LIMIT));
response.nextMessage = next;
response.isNextFetch = starting != null;
JSONSerializer serializer = new JSONSerializer();
String jsonObject =
serializer
.include("messages")
.transform(new CustomTimeTransformer(), "messages.timestamp")
.transform(new CustomTimeTransformer(), "nextMessage.timestamp")
.exclude("*.class")
.serialize(response);
resp.setHeader("Content-Type", "application/json");
resp.getWriter().println(jsonObject);
resp.getWriter().close();
} catch (UserNotFoundException e) {
IrssiNotifier.printError(resp.getWriter(), e);
}
}