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/*
* Copyright 2022 - 2023 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.helper.model;
import org.traccar.model.Device;
import org.traccar.model.Group;
import org.traccar.model.User;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import org.traccar.storage.query.Columns;
import org.traccar.storage.query.Condition;
import org.traccar.storage.query.Request;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Objects;
import java.util.stream.Collectors;
public final class DeviceUtil {
private DeviceUtil() {
}
public static void resetStatus(Storage storage) throws StorageException {
storage.updateObject(new Device(), new Request(new Columns.Include("status")));
}
public static Collection<Device> getAccessibleDevices(
Storage storage, long userId,
Collection<Long> deviceIds, Collection<Long> groupIds) throws StorageException {
var devices = storage.getObjects(Device.class, new Request(
new Columns.All(),
new Condition.Permission(User.class, userId, Device.class)));
var deviceById = devices.stream()
.collect(Collectors.toUnmodifiableMap(Device::getId, x -> x));
var devicesByGroup = devices.stream()
.filter(x -> x.getGroupId() > 0)
.collect(Collectors.groupingBy(Device::getGroupId));
var groups = storage.getObjects(Group.class, new Request(
new Columns.All(),
new Condition.Permission(User.class, userId, Group.class)));
var groupsByGroup = groups.stream()
.filter(x -> x.getGroupId() > 0)
.collect(Collectors.groupingBy(Group::getGroupId));
var results = deviceIds.stream()
.map(deviceById::get)
.filter(Objects::nonNull)
.collect(Collectors.toSet());
var groupQueue = new LinkedList<>(groupIds);
while (!groupQueue.isEmpty()) {
long groupId = groupQueue.pop();
results.addAll(devicesByGroup.getOrDefault(groupId, Collections.emptyList()));
groupQueue.addAll(groupsByGroup.getOrDefault(groupId, Collections.emptyList())
.stream().map(Group::getId).collect(Collectors.toUnmodifiableList()));
}
return results;
}
}
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