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package org.traccar.database;
import java.sql.SQLException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.traccar.helper.Log;
import org.traccar.model.Device;
import org.traccar.model.Geofence;
import org.traccar.model.GroupGeofence;
import org.traccar.model.UserDeviceGeofence;
import org.traccar.model.GeofencePermission;
public class GeofenceManager {
private final DataManager dataManager;
private final Map<Long, Geofence> geofences = new HashMap<>();
private final Map<Long, Set<Long>> userGeofences = new HashMap<>();
private final Map<Long, Set<Long>> groupGeofences = new HashMap<>();
private final Map<Long, Set<Long>> deviceGeofences = new HashMap<>();
private final Map<Long, Map<Long, Set<Long>>> userDeviceGeofences = new HashMap<>();
private final ReadWriteLock deviceGeofencesLock = new ReentrantReadWriteLock();
private final ReadWriteLock geofencesLock = new ReentrantReadWriteLock();
private final ReadWriteLock groupGeofencesLock = new ReentrantReadWriteLock();
public GeofenceManager(DataManager dataManager) {
this.dataManager = dataManager;
refresh();
}
public Set<Long> getUserGeofencesIds(long userId) {
if (!userGeofences.containsKey(userId)) {
userGeofences.put(userId, new HashSet<Long>());
}
return userGeofences.get(userId);
}
private Set<Long> getGroupGeofences(long groupId) {
if (!groupGeofences.containsKey(groupId)) {
groupGeofences.put(groupId, new HashSet<Long>());
}
return groupGeofences.get(groupId);
}
public Set<Long> getAllDeviceGeofences(long deviceId) {
deviceGeofencesLock.readLock().lock();
try {
return getDeviceGeofences(deviceGeofences, deviceId);
} finally {
deviceGeofencesLock.readLock().unlock();
}
}
public Set<Long> getUserDeviceGeofences(long userId, long deviceId) {
deviceGeofencesLock.readLock().lock();
try {
return getUserDeviceGeofencesUnlocked(userId, deviceId);
} finally {
deviceGeofencesLock.readLock().unlock();
}
}
private Set<Long> getDeviceGeofences(Map<Long, Set<Long>> deviceGeofences, long deviceId) {
if (!deviceGeofences.containsKey(deviceId)) {
deviceGeofences.put(deviceId, new HashSet<Long>());
}
return deviceGeofences.get(deviceId);
}
private Set<Long> getUserDeviceGeofencesUnlocked(long userId, long deviceId) {
if (!userDeviceGeofences.containsKey(userId)) {
userDeviceGeofences.put(userId, new HashMap<Long, Set<Long>>());
}
return getDeviceGeofences(userDeviceGeofences.get(userId), deviceId);
}
public final void refresh() {
if (dataManager != null) {
try {
geofencesLock.writeLock().lock();
groupGeofencesLock.writeLock().lock();
deviceGeofencesLock.writeLock().lock();
try {
geofences.clear();
for (Geofence geofence : dataManager.getGeofences()) {
geofences.put(geofence.getId(), geofence);
}
userGeofences.clear();
for (GeofencePermission geofencePermission : dataManager.getGeofencePermissions()) {
getUserGeofencesIds(geofencePermission.getUserId()).add(geofencePermission.getGeofenceId());
}
groupGeofences.clear();
for (GroupGeofence groupGeofence : dataManager.getGroupGeofences()) {
getGroupGeofences(groupGeofence.getGroupId()).add(groupGeofence.getGeofenceId());
}
deviceGeofences.clear();
for (Map.Entry<Long, Map<Long, Set<Long>>> deviceGeofence : userDeviceGeofences.entrySet()) {
deviceGeofence.getValue().clear();
}
userDeviceGeofences.clear();
for (UserDeviceGeofence userDeviceGeofence : dataManager.getUserDeviceGeofences()) {
getDeviceGeofences(deviceGeofences, userDeviceGeofence.getDeviceId())
.add(userDeviceGeofence.getGeofenceId());
getUserDeviceGeofencesUnlocked(userDeviceGeofence.getUserId(), userDeviceGeofence.getDeviceId())
.add(userDeviceGeofence.getGeofenceId());
}
for (Device device : dataManager.getAllDevices()) {
long groupId = device.getGroupId();
while (groupId != 0) {
getDeviceGeofences(deviceGeofences, device.getId()).addAll(getGroupGeofences(groupId));
groupId = dataManager.getGroupById(groupId).getGroupId();
}
}
} finally {
geofencesLock.writeLock().unlock();
groupGeofencesLock.writeLock().unlock();
deviceGeofencesLock.writeLock().unlock();
}
} catch (SQLException error) {
Log.warning(error);
}
}
}
public final Collection<Geofence> getAllGeofences() {
geofencesLock.readLock().lock();
try {
return geofences.values();
} finally {
geofencesLock.readLock().unlock();
}
}
public final Collection<Geofence> getUserGeofences(long userId) {
geofencesLock.readLock().lock();
try {
Collection<Geofence> result = new LinkedList<>();
for (Long geofenceId : getUserGeofencesIds(userId)) {
result.add(getGeofence(geofenceId));
}
return result;
} finally {
geofencesLock.readLock().unlock();
}
}
public final Geofence getGeofence(Long geofenceId) {
geofencesLock.readLock().lock();
try {
return geofences.get(geofenceId);
} finally {
geofencesLock.readLock().unlock();
}
}
public final void updateGeofence(Geofence geofence) {
geofencesLock.writeLock().lock();
try {
geofences.put(geofence.getId(), geofence);
} finally {
geofencesLock.writeLock().unlock();
}
try {
dataManager.updateGeofence(geofence);
} catch (SQLException error) {
Log.warning(error);
}
}
public boolean checkGeofence(long userId, long geofenceId) {
return getUserGeofencesIds(userId).contains(geofenceId);
}
}
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