private void doUnregister(String deviceRegistrationID, String accountName) {
log.info("in unregister: accountName = " + accountName);
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
List<DeviceInfo> registrations = DeviceInfo.getDeviceInfoForUser(accountName);
for (int i = 0; i < registrations.size(); i++) {
DeviceInfo deviceInfo = registrations.get(i);
if (deviceInfo.getDeviceRegistrationID().equals(deviceRegistrationID)) {
pm.deletePersistent(deviceInfo);
// Keep looping in case of duplicates
}
}
} catch (JDOObjectNotFoundException e) {
log.warning("User " + accountName + " unknown");
} catch (Exception e) {
log.warning("Error unregistering device: " + e.getMessage());
} finally {
pm.close();
}
}
private void doRegister(
String deviceRegistrationId, String deviceType, String deviceId, String accountName)
throws Exception {
log.info("in register: accountName = " + accountName);
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
List<DeviceInfo> registrations = DeviceInfo.getDeviceInfoForUser(accountName);
log.info("got registrations");
if (registrations.size() > MAX_DEVICES) {
log.info("got registrations > MAX_DEVICES");
// we could return an error - but user can't handle it yet.
// we can't let it grow out of bounds.
// TODO: we should also define a 'ping' message and expire/remove
// unused registrations
DeviceInfo oldest = registrations.get(0);
if (oldest.getRegistrationTimestamp() == null) {
pm.deletePersistent(oldest);
} else {
long oldestTime = oldest.getRegistrationTimestamp().getTime();
for (int i = 1; i < registrations.size(); i++) {
if (registrations.get(i).getRegistrationTimestamp().getTime() < oldestTime) {
oldest = registrations.get(i);
oldestTime = oldest.getRegistrationTimestamp().getTime();
}
}
pm.deletePersistent(oldest);
}
}
// Get device if it already exists, else create
String suffix =
(deviceId != null ? "#" + Long.toHexString(Math.abs(deviceId.hashCode())) : "");
log.info("suffix = " + suffix);
Key key = KeyFactory.createKey(DeviceInfo.class.getSimpleName(), accountName + suffix);
log.info("key = " + key);
DeviceInfo device = null;
try {
device = pm.getObjectById(DeviceInfo.class, key);
} catch (JDOObjectNotFoundException e) {
log.info("Caught JDOObjectNotFoundException");
}
if (device == null) {
device = new DeviceInfo(key, deviceRegistrationId);
device.setType(deviceType);
} else {
// update registration id
device.setDeviceRegistrationID(deviceRegistrationId);
device.setRegistrationTimestamp(new Date());
}
pm.makePersistent(device);
return;
} catch (Exception e) {
log.info("Caught exception: " + e);
throw e;
} finally {
pm.close();
}
}
public static String sendMessage(ServletContext context, String recipient, String message) {
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
String sender = "nobody";
if (user != null) {
sender = user.getEmail();
}
log.info("sendMessage: sender = " + sender);
log.info("sendMessage: recipient = " + recipient);
log.info("sendMessage: message = " + message);
// ok = we sent to at least one device.
boolean ok = false;
// Send push message to phone
C2DMessaging push = C2DMessaging.get(context);
boolean res = false;
String collapseKey = "" + message.hashCode();
// delete will fail if the pm is different than the one used to
// load the object - we must close the object when we're done
List<DeviceInfo> registrations = null;
registrations = DeviceInfo.getDeviceInfoForUser(recipient);
log.info("sendMessage: got " + registrations.size() + " registrations");
// Deal with upgrades and multi-device:
// If user has one device with an old version and few new ones -
// the old registration will be deleted.
if (registrations.size() > 1) {
// Make sure there is no 'bare' registration
// Keys are sorted - check the first
DeviceInfo first = registrations.get(0);
Key oldKey = first.getKey();
if (oldKey.toString().indexOf("#") < 0) {
// multiple devices, first is old-style.
registrations.remove(0); // don't send to it
pm.deletePersistent(first);
}
}
int numSendAttempts = 0;
for (DeviceInfo deviceInfo : registrations) {
if (!"ac2dm".equals(deviceInfo.getType())) {
continue; // user-specified device type
}
res = doSendViaC2dm(message, sender, push, collapseKey, deviceInfo);
numSendAttempts++;
if (res) {
ok = true;
}
}
if (ok) {
return "Success: Message sent";
} else if (numSendAttempts == 0) {
return "Failure: User " + recipient + " not registered";
} else {
return "Failure: Unable to send message";
}
} catch (Exception e) {
return "Failure: Got exception " + e;
} finally {
pm.close();
}
}