public String[] getTitlesByDistance(double lat, double lon) {
double[] distances = new double[messages.size()];
String[] titles = new String[distances.length];
for (int i = 0; i < distances.length; i++) distances[i] = 0;
Iterator<Long> keys = messages.keySet().iterator();
while (keys.hasNext()) {
MosaicMessage msg = messages.get(keys.next());
double distance =
distance(fromE6(msg.getLatitudeE6()), fromE6(msg.getLongitudeE6()), lat, lon);
for (int i = 0; i < distances.length; i++) {
if (distance < distances[i]) {
int n = distances.length - 2;
while (n >= i) {
distances[n + 1] = distances[n];
titles[n + 1] = titles[n];
n--;
}
distances[i] = distance;
titles[i] = msg.getTitle();
break;
} else if (i == (distances.length - 1)) {
distances[i] = distance;
titles[i] = msg.getTitle();
}
}
}
return titles;
}
@Override
public void updateMessage(long id, String title, String body, int radius, long expiry)
throws RemoteException {
MosaicMessage message = messages.get((Long) id);
message.setTitle(title);
message.setBody(body);
message.setRadius(radius);
message.setExpiry(expiry);
new UpdateMessageTask(MosaicService.this, message).execute();
}
@Override
public void insertMessage(
String title, String body, int latE6, int lonE6, int radius, long expiry)
throws RemoteException {
MosaicMessage message = new MosaicMessage();
message.setTitle(title);
message.setBody(body);
message.setLatitudeE6(latE6);
message.setLongitudeE6(lonE6);
message.setRadius(radius);
message.setCreated(System.currentTimeMillis());
message.setUserId(mosaicUser.getId());
new InsertMessageTask(MosaicService.this, message).execute();
}
protected void updateMessage(MosaicMessage message) {
messages.put(message.getId(), message);
if (iMain != null) {
try {
iMain.addMessage(
message.getId(),
fromE6(message.getLatitudeE6()),
fromE6(message.getLongitudeE6()),
message.getRadius(),
message.getTitle(),
message.getBody(),
message.getUser().getNickname());
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void getMessage(long id) throws RemoteException {
if (messages.containsKey((Long) id)) {
MosaicMessage message = messages.get((Long) id);
new ViewMessageTask(MosaicService.this, id).execute();
if (message.getUserId().equals(mosaicUser.getId()))
iMain.editMessage(
message.getId(),
message.getTitle(),
message.getBody(),
message.getRadius(),
message.getExpiry());
else
iMain.viewMessage(
message.getId(),
message.getTitle(),
message.getBody(),
message.getUser().getNickname());
} else {
// TODO error
}
}
protected void setMessages(List<MosaicMessage> msgs) {
if (msgs != null) {
ArrayList<Long> newIds = new ArrayList<Long>();
for (MosaicMessage msg : msgs) {
if (iMain != null) {
try {
if (messages.containsKey(msg.getId())
&& (messages.get(msg.getId()).getRadius() == msg.getRadius()))
iMain.addMessage(
msg.getId(),
fromE6(msg.getLatitudeE6()),
fromE6(msg.getLongitudeE6()),
Mosaic.RADIUS_UNCHANGED,
msg.getTitle(),
msg.getBody(),
msg.getUser().getNickname());
else
iMain.addMessage(
msg.getId(),
fromE6(msg.getLatitudeE6()),
fromE6(msg.getLongitudeE6()),
msg.getRadius(),
msg.getTitle(),
msg.getBody(),
msg.getUser().getNickname());
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
messages.put(msg.getId(), msg);
newIds.add(msg.getId());
}
ArrayList<Long> removalIds = new ArrayList<Long>();
for (Long id : messages.keySet()) {
if (!newIds.contains(id)) removalIds.add(id);
}
for (Long id : removalIds) {
messages.remove(id);
if (iMain != null) {
try {
iMain.removeMarker(id);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
} else {
messages.clear();
if (iMain != null) {
try {
iMain.clearMessages();
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}