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/*
* Copyright 2020 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.schedule;
import org.traccar.Context;
import org.traccar.model.Device;
import org.traccar.model.Event;
import org.traccar.model.Position;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class TaskDeviceInactivityCheck implements Runnable {
public static final String ATTRIBUTE_DEVICE_INACTIVITY_START = "deviceInactivityStart";
public static final String ATTRIBUTE_DEVICE_INACTIVITY_PERIOD = "deviceInactivityPeriod";
public static final String ATTRIBUTE_LAST_UPDATE = "lastUpdate";
private static final long CHECK_PERIOD_MINUTES = 15;
public void schedule(ScheduledExecutorService executor) {
executor.scheduleAtFixedRate(this, CHECK_PERIOD_MINUTES, CHECK_PERIOD_MINUTES, TimeUnit.MINUTES);
}
@Override
public void run() {
long currentTime = System.currentTimeMillis();
long checkPeriod = TimeUnit.MINUTES.toMillis(CHECK_PERIOD_MINUTES);
Map<Event, Position> events = new HashMap<>();
for (Device device : Context.getDeviceManager().getAllDevices()) {
if (device.getLastUpdate() != null && checkDevice(device, currentTime, checkPeriod)) {
Event event = new Event(Event.TYPE_DEVICE_INACTIVE, device.getId());
event.set(ATTRIBUTE_LAST_UPDATE, device.getLastUpdate().getTime());
events.put(event, null);
}
}
Context.getNotificationManager().updateEvents(events);
}
private boolean checkDevice(Device device, long currentTime, long checkPeriod) {
long deviceInactivityStart = device.getLong(ATTRIBUTE_DEVICE_INACTIVITY_START);
if (deviceInactivityStart > 0) {
long timeThreshold = device.getLastUpdate().getTime() + deviceInactivityStart;
if (currentTime >= timeThreshold) {
if (currentTime - checkPeriod < timeThreshold) {
return true;
}
long deviceInactivityPeriod = device.getLong(ATTRIBUTE_DEVICE_INACTIVITY_PERIOD);
if (deviceInactivityPeriod > 0) {
long count = (currentTime - timeThreshold - 1) / deviceInactivityPeriod;
timeThreshold += count * deviceInactivityPeriod;
return currentTime - checkPeriod < timeThreshold;
}
}
}
return false;
}
}
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