/** {@inheritDoc} */
@Override
public void update(String key, String msg) {
if (key.startsWith(Definitions.PREFIX_SENSORS_VISIBILITY)) {
// notify all clients
log.trace("a sensor has become (in)visible");
String sensorId = key.replace(VISIBILITY, "");
String msgToSend = null;
if ("true".equals(msg)) {
// for a visible message, we need all the sensors information
Sensor s = Server.getSensorStorage().getSensorById(sensorId);
if (s != null) {
msgToSend =
ServerProtocolAbstractor.createSensorVisibilityMessage(
sensorId, s.description, s.dataType, true);
broadcastToAllClients(msgToSend);
// create the visibility conf item for the admin clients:
String confMsg = createSensorVisiblityConf(s);
List<ServerClient> admins = null;
synchronized (m_adminClients) {
// copy to be thread-safe
admins = new ArrayList<ServerClient>(m_adminClients.values());
}
sendToClients(admins, confMsg);
// if its a polling sensor, we additionally need the polltime config:
if (s.isPolling) {
confMsg = createSensorPollTimeConf(s);
sendToClients(admins, confMsg);
}
} else {
log.warn("we got info about new sensor which isn't really there! id=" + sensorId);
}
} else {
// sensor became invisble, we only need his id
msgToSend =
ServerProtocolAbstractor.createSensorVisibilityMessage(
sensorId, "NOT_USED", "NOT_USED", false);
broadcastToAllClients(msgToSend);
// and unsubscribe all clients that might currently be subscribed:
List<ServerClient> targets = null;
synchronized (m_clients) {
List<ServerClient> clients = m_clients.getClientsForSensor(sensorId);
if (clients != null) {
targets = new ArrayList<ServerClient>(clients);
}
}
if (targets != null) {
for (ServerClient unregMe : targets) {
m_clients.onClientUnregistersForSensor(unregMe, sensorId);
}
}
}
}
}
/** {@inheritDoc} */
@Override
public void onNewClient(Client data, NetworkServiceClient connection) {
ServerClient sc = new ServerClient(data, connection);
m_clients.addClient(sc);
List<Sensor> allSensors = Server.getSensorStorage().getAllSensors();
for (Sensor sensor : allSensors) {
String value = m_prefs.getValue(VISIBILITY + sensor.ident);
if ("true".equals(value)) {
String msg =
ServerProtocolAbstractor.createSensorVisibilityMessage(
sensor.ident, sensor.description, sensor.dataType, true);
sendToClient(sc, msg);
}
}
}
@Override
public void onSensorDataReceived(Sensor s) {
ArrayList<ServerClient> targets = null;
synchronized (m_clients) {
// copy the entries to be reistent to modifications while sending
List<ServerClient> clients = m_clients.getClientsForSensor(s.ident);
if (clients != null) {
targets = new ArrayList<ServerClient>(clients);
}
}
if (targets != null && targets.size() > 0) {
log.trace(
"broadcasting new sensor data from " + s.ident + " to " + targets.size() + " clients");
String msgToSend = ServerProtocolAbstractor.createSensorDataMessage(s.ident, s.data);
sendToClients(targets, msgToSend);
} else {
log.trace("broadcasting new sensor data from " + s.ident + " to 0 clients");
}
}