diff options
Diffstat (limited to 'src/main/java/org/traccar/session/ConnectionManager.java')
| -rw-r--r-- | src/main/java/org/traccar/session/ConnectionManager.java | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/session/ConnectionManager.java b/src/main/java/org/traccar/session/ConnectionManager.java new file mode 100644 index 000000000..fbc15b00d --- /dev/null +++ b/src/main/java/org/traccar/session/ConnectionManager.java @@ -0,0 +1,218 @@ +/* + * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.traccar.session; + +import io.netty.channel.Channel; +import io.netty.util.Timeout; +import io.netty.util.Timer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.traccar.Context; +import org.traccar.Main; +import org.traccar.Protocol; +import org.traccar.config.Keys; +import org.traccar.handler.events.MotionEventHandler; +import org.traccar.handler.events.OverspeedEventHandler; +import org.traccar.model.Device; +import org.traccar.model.Event; +import org.traccar.model.Position; +import org.traccar.storage.StorageException; + +import java.net.SocketAddress; +import java.util.Date; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Map; +import java.util.Set; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.TimeUnit; + +public class ConnectionManager { + + private static final Logger LOGGER = LoggerFactory.getLogger(ConnectionManager.class); + + private final long deviceTimeout; + private final boolean updateDeviceState; + + private final Map<Long, ActiveDevice> activeDevices = new ConcurrentHashMap<>(); + private final Map<Long, Set<UpdateListener>> listeners = new ConcurrentHashMap<>(); + private final Map<Long, Timeout> timeouts = new ConcurrentHashMap<>(); + + private final Timer timer; + + public ConnectionManager() { + deviceTimeout = Context.getConfig().getLong(Keys.STATUS_TIMEOUT) * 1000; + updateDeviceState = Context.getConfig().getBoolean(Keys.STATUS_UPDATE_DEVICE_STATE); + timer = Main.getInjector().getInstance(Timer.class); + } + + public void addActiveDevice(long deviceId, Protocol protocol, Channel channel, SocketAddress remoteAddress) { + activeDevices.put(deviceId, new ActiveDevice(deviceId, protocol, channel, remoteAddress)); + } + + public void removeActiveDevice(Channel channel) { + for (ActiveDevice activeDevice : activeDevices.values()) { + if (activeDevice.getChannel() == channel) { + updateDevice(activeDevice.getDeviceId(), Device.STATUS_OFFLINE, null); + activeDevices.remove(activeDevice.getDeviceId()); + break; + } + } + } + + public ActiveDevice getActiveDevice(long deviceId) { + return activeDevices.get(deviceId); + } + + public void updateDevice(final long deviceId, String status, Date time) { + Device device = Context.getIdentityManager().getById(deviceId); + if (device == null) { + return; + } + + String oldStatus = device.getStatus(); + device.setStatus(status); + + if (!status.equals(oldStatus)) { + String eventType; + Map<Event, Position> events = new HashMap<>(); + switch (status) { + case Device.STATUS_ONLINE: + eventType = Event.TYPE_DEVICE_ONLINE; + break; + case Device.STATUS_UNKNOWN: + eventType = Event.TYPE_DEVICE_UNKNOWN; + if (updateDeviceState) { + events.putAll(updateDeviceState(deviceId)); + } + break; + default: + eventType = Event.TYPE_DEVICE_OFFLINE; + if (updateDeviceState) { + events.putAll(updateDeviceState(deviceId)); + } + break; + } + events.put(new Event(eventType, deviceId), null); + Context.getNotificationManager().updateEvents(events); + } + + Timeout timeout = timeouts.remove(deviceId); + if (timeout != null) { + timeout.cancel(); + } + + if (time != null) { + device.setLastUpdate(time); + } + + if (status.equals(Device.STATUS_ONLINE)) { + timeouts.put(deviceId, timer.newTimeout(timeout1 -> { + if (!timeout1.isCancelled()) { + updateDevice(deviceId, Device.STATUS_UNKNOWN, null); + } + }, deviceTimeout, TimeUnit.MILLISECONDS)); + } + + try { + Context.getDeviceManager().updateDeviceStatus(device); + } catch (StorageException e) { + LOGGER.warn("Update device status error", e); + } + + updateDevice(device); + } + + public Map<Event, Position> updateDeviceState(long deviceId) { + DeviceState deviceState = Context.getDeviceManager().getDeviceState(deviceId); + Map<Event, Position> result = new HashMap<>(); + + Map<Event, Position> event = Main.getInjector() + .getInstance(MotionEventHandler.class).updateMotionState(deviceState); + if (event != null) { + result.putAll(event); + } + + event = Main.getInjector().getInstance(OverspeedEventHandler.class) + .updateOverspeedState(deviceState, Context.getDeviceManager(). + lookupAttributeDouble(deviceId, OverspeedEventHandler.ATTRIBUTE_SPEED_LIMIT, 0, true, false)); + if (event != null) { + result.putAll(event); + } + + return result; + } + + public synchronized void sendKeepalive() { + for (Set<UpdateListener> userListeners : listeners.values()) { + for (UpdateListener listener : userListeners) { + listener.onKeepalive(); + } + } + } + + public synchronized void updateDevice(Device device) { + for (long userId : Context.getPermissionsManager().getDeviceUsers(device.getId())) { + if (listeners.containsKey(userId)) { + for (UpdateListener listener : listeners.get(userId)) { + listener.onUpdateDevice(device); + } + } + } + } + + public synchronized void updatePosition(Position position) { + long deviceId = position.getDeviceId(); + + for (long userId : Context.getPermissionsManager().getDeviceUsers(deviceId)) { + if (listeners.containsKey(userId)) { + for (UpdateListener listener : listeners.get(userId)) { + listener.onUpdatePosition(position); + } + } + } + } + + public synchronized void updateEvent(long userId, Event event) { + if (listeners.containsKey(userId)) { + for (UpdateListener listener : listeners.get(userId)) { + listener.onUpdateEvent(event); + } + } + } + + public interface UpdateListener { + void onKeepalive(); + void onUpdateDevice(Device device); + void onUpdatePosition(Position position); + void onUpdateEvent(Event event); + } + + public synchronized void addListener(long userId, UpdateListener listener) { + if (!listeners.containsKey(userId)) { + listeners.put(userId, new HashSet<>()); + } + listeners.get(userId).add(listener); + } + + public synchronized void removeListener(long userId, UpdateListener listener) { + if (!listeners.containsKey(userId)) { + listeners.put(userId, new HashSet<>()); + } + listeners.get(userId).remove(listener); + } + +} |