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/*
* Copyright 2017 Anton Tananaev (anton@traccar.org)
* Copyright 2017 Andrey Kunitsyn (andrey@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.database;
import java.sql.SQLException;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.traccar.Context;
import org.traccar.helper.Log;
import org.traccar.model.Device;
import org.traccar.model.DeviceDriver;
import org.traccar.model.Driver;
import org.traccar.model.DriverPermission;
import org.traccar.model.GroupDriver;
public class DriversManager {
private final DataManager dataManager;
private final Map<Long, Driver> drivers = new ConcurrentHashMap<>();
private final Map<String, Driver> driversByUniqueId = new ConcurrentHashMap<>();
private final Map<Long, Set<Long>> deviceDrivers = new ConcurrentHashMap<>();
private final Map<Long, Set<Long>> deviceDriversWithGroups = new ConcurrentHashMap<>();
private final Map<Long, Set<Long>> groupDrivers = new ConcurrentHashMap<>();
private final Map<Long, Set<Long>> userDrivers = new ConcurrentHashMap<>();
public DriversManager(DataManager dataManager) {
this.dataManager = dataManager;
refreshDrivers();
}
public Set<Long> getUserDrivers(long userId) {
if (!userDrivers.containsKey(userId)) {
userDrivers.put(userId, new HashSet<Long>());
}
return userDrivers.get(userId);
}
public Set<Long> getGroupDrivers(long groupId) {
if (!groupDrivers.containsKey(groupId)) {
groupDrivers.put(groupId, new HashSet<Long>());
}
return groupDrivers.get(groupId);
}
public Set<Long> getDeviceDrivers(long deviceId) {
return getDeviceDrivers(deviceDrivers, deviceId);
}
public Set<Long> getAllDeviceDrivers(long deviceId) {
return getDeviceDrivers(deviceDriversWithGroups, deviceId);
}
private Set<Long> getDeviceDrivers(Map<Long, Set<Long>> deviceDrivers, long deviceId) {
if (!deviceDrivers.containsKey(deviceId)) {
deviceDrivers.put(deviceId, new HashSet<Long>());
}
return deviceDrivers.get(deviceId);
}
public final void refreshDrivers() {
if (dataManager != null) {
try {
drivers.clear();
driversByUniqueId.clear();
for (Driver driver : dataManager.getDrivers()) {
drivers.put(driver.getId(), driver);
driversByUniqueId.put(driver.getUniqueId(), driver);
}
} catch (SQLException error) {
Log.warning(error);
}
}
refreshUserDrivers();
refresh();
}
public final void refreshUserDrivers() {
if (dataManager != null) {
try {
userDrivers.clear();
for (DriverPermission driverPermission : dataManager.getDriverPermissions()) {
getUserDrivers(driverPermission.getUserId()).add(driverPermission.getDriverId());
}
} catch (SQLException error) {
Log.warning(error);
}
}
}
public final void refresh() {
if (dataManager != null) {
try {
Collection<GroupDriver> databaseGroupDrivers = dataManager.getGroupDrivers();
groupDrivers.clear();
for (GroupDriver groupDriver : databaseGroupDrivers) {
getGroupDrivers(groupDriver.getGroupId()).add(groupDriver.getDriverId());
}
Collection<DeviceDriver> databaseDeviceDrivers = dataManager.getDeviceDrivers();
Collection<Device> allDevices = Context.getDeviceManager().getAllDevices();
deviceDrivers.clear();
deviceDriversWithGroups.clear();
for (DeviceDriver deviceAttribute : databaseDeviceDrivers) {
getDeviceDrivers(deviceAttribute.getDeviceId())
.add(deviceAttribute.getDriverId());
getAllDeviceDrivers(deviceAttribute.getDeviceId())
.add(deviceAttribute.getDriverId());
}
for (Device device : allDevices) {
long groupId = device.getGroupId();
while (groupId != 0) {
getAllDeviceDrivers(device.getId()).addAll(getGroupDrivers(groupId));
if (Context.getDeviceManager().getGroupById(groupId) != null) {
groupId = Context.getDeviceManager().getGroupById(groupId).getGroupId();
} else {
groupId = 0;
}
}
}
} catch (SQLException error) {
Log.warning(error);
}
}
}
public void addDriver(Driver driver) throws SQLException {
dataManager.addDriver(driver);
drivers.put(driver.getId(), driver);
driversByUniqueId.put(driver.getUniqueId(), driver);
}
public void updateDriver(Driver driver) throws SQLException {
dataManager.updateDriver(driver);
Driver cachedDriver = drivers.get(driver.getId());
cachedDriver.setName(driver.getName());
if (!driver.getUniqueId().equals(cachedDriver.getUniqueId())) {
driversByUniqueId.remove(cachedDriver.getUniqueId());
cachedDriver.setUniqueId(driver.getUniqueId());
driversByUniqueId.put(cachedDriver.getUniqueId(), cachedDriver);
}
cachedDriver.setAttributes(driver.getAttributes());
}
public void removeDriver(long driverId) throws SQLException {
dataManager.removeDriver(driverId);
if (drivers.containsKey(driverId)) {
String driverUniqueId = drivers.get(driverId).getUniqueId();
drivers.remove(driverId);
driversByUniqueId.remove(driverUniqueId);
}
refreshUserDrivers();
refresh();
}
public boolean checkDriver(long userId, long driverId) {
return getUserDrivers(userId).contains(driverId);
}
public Driver getDriver(long id) {
return drivers.get(id);
}
public Driver getDriverByUniqueId(String uniqueId) {
return driversByUniqueId.get(uniqueId);
}
public final Collection<Driver> getDrivers(Set<Long> driverIds) {
Collection<Driver> result = new LinkedList<>();
for (long driverId : driverIds) {
result.add(getDriver(driverId));
}
return result;
}
public final Set<Long> getAllDrivers() {
return drivers.keySet();
}
public final Set<Long> getManagedDrivers(long userId) {
Set<Long> drivers = new HashSet<>();
drivers.addAll(getUserDrivers(userId));
for (long managedUserId : Context.getPermissionsManager().getUserPermissions(userId)) {
drivers.addAll(getUserDrivers(managedUserId));
}
return drivers;
}
public final boolean authorizeDriverByUniqueId(String driverUniqueId, long deviceId) {
if (driversByUniqueId.containsKey(driverUniqueId)) {
long chekingDriverId = getDriverByUniqueId(driverUniqueId).getId();
Set<Long> deviceDrivers = getAllDeviceDrivers(deviceId);
if (deviceDrivers.isEmpty()) {
return true;
}
for (long driverId : deviceDrivers) {
if (chekingDriverId == driverId) {
return true;
}
}
}
return false;
}
}
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