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/*
* Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
* Copyright 2016 Andrey Kunitsyn (abyss@fox5.ru)
*
* 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.reports;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import javax.json.Json;
import javax.json.JsonArrayBuilder;
import org.traccar.Context;
import org.traccar.model.Position;
import org.traccar.reports.model.TripReport;
import org.traccar.web.CsvBuilder;
import org.traccar.web.JsonConverter;
public final class Trips {
private Trips() {
}
private static TripReport calculateTrip(ArrayList<Position> positions, int startIndex, int endIndex) {
Position startTrip = positions.get(startIndex);
Position endTrip = positions.get(endIndex);
double speedMax = 0.0;
double speedSum = 0.0;
for (int i = startIndex; i <= endIndex; i++) {
double speed = positions.get(i).getSpeed();
speedSum += speed;
if (speed > speedMax) {
speedMax = speed;
}
}
TripReport trip = new TripReport();
long tripDuration = endTrip.getFixTime().getTime() - positions.get(startIndex).getFixTime().getTime();
long deviceId = startTrip.getDeviceId();
trip.setDeviceId(deviceId);
String deviceName = Context.getDeviceManager().getDeviceById(deviceId).getName();
trip.setDeviceName(deviceName);
trip.setStartPositionId(startTrip.getId());
trip.setStartTime(startTrip.getFixTime());
trip.setStartAddress(startTrip.getAddress());
trip.setEndPositionId(endTrip.getId());
trip.setEndTime(endTrip.getFixTime());
trip.setEndAddress(endTrip.getAddress());
trip.setDistance(ReportUtils.calculateDistance(startTrip, endTrip));
trip.setDuration(tripDuration);
trip.setAverageSpeed(speedSum / (endIndex - startIndex));
trip.setMaxSpeed(speedMax);
trip.setSpentFuel(ReportUtils.calculateFuel(startTrip, endTrip));
return trip;
}
private static Collection<TripReport> detectTrips(long deviceId, Date from, Date to) throws SQLException {
double speedThreshold = Context.getConfig().getDouble("event.motion.speedThreshold", 0.01);
long minimalTripDuration = Context.getConfig().getLong("report.trip.minimalTripDuration", 300) * 1000;
double minimalTripDistance = Context.getConfig().getLong("report.trip.minimalTripDistance", 500);
long minimalParkingDuration = Context.getConfig().getLong("report.trip.minimalParkingDuration", 300) * 1000;
boolean greedyParking = Context.getConfig().getBoolean("report.trip.greedyParking");
Collection<TripReport> result = new ArrayList<>();
ArrayList<Position> positions = new ArrayList<>(Context.getDataManager().getPositions(deviceId, from, to));
if (positions != null && !positions.isEmpty()) {
int previousStartParkingIndex = 0;
int startParkingIndex = -1;
int previousEndParkingIndex = 0;
int endParkingIndex = 0;
boolean isMoving = false;
boolean isLast = false;
boolean skipped = false;
boolean tripFiltered = false;
for (int i = 0; i < positions.size(); i++) {
isMoving = positions.get(i).getSpeed() > speedThreshold;
isLast = i == positions.size() - 1;
if ((isMoving || isLast) && startParkingIndex != -1) {
if (!skipped || previousEndParkingIndex == 0) {
previousEndParkingIndex = endParkingIndex;
}
endParkingIndex = i;
}
if (!isMoving && startParkingIndex == -1) {
if (greedyParking) {
long tripDuration = positions.get(i).getFixTime().getTime()
- positions.get(endParkingIndex).getFixTime().getTime();
double tripDistance = ReportUtils.calculateDistance(positions.get(endParkingIndex),
positions.get(i), false);
tripFiltered = tripDuration < minimalTripDuration && tripDistance < minimalTripDistance;
if (tripFiltered) {
startParkingIndex = previousStartParkingIndex;
endParkingIndex = previousEndParkingIndex;
tripFiltered = false;
} else {
previousStartParkingIndex = i;
startParkingIndex = i;
}
} else {
long tripDuration = positions.get(i).getFixTime().getTime()
- positions.get(previousEndParkingIndex).getFixTime().getTime();
double tripDistance = ReportUtils.calculateDistance(positions.get(previousEndParkingIndex),
positions.get(i), false);
tripFiltered = tripDuration < minimalTripDuration && tripDistance < minimalTripDistance;
startParkingIndex = i;
}
}
if (startParkingIndex != -1 && (endParkingIndex > startParkingIndex || isLast)) {
long parkingDuration = positions.get(endParkingIndex).getFixTime().getTime()
- positions.get(startParkingIndex).getFixTime().getTime();
if ((parkingDuration >= minimalParkingDuration || isLast)
&& previousEndParkingIndex < startParkingIndex) {
if (!tripFiltered) {
result.add(calculateTrip(positions, previousEndParkingIndex, startParkingIndex));
}
previousEndParkingIndex = endParkingIndex;
skipped = false;
} else {
skipped = true;
}
startParkingIndex = -1;
}
}
}
return result;
}
public static String getJson(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
Date from, Date to) throws SQLException {
JsonArrayBuilder json = Json.createArrayBuilder();
for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
Context.getPermissionsManager().checkDevice(userId, deviceId);
for (TripReport tripReport : detectTrips(deviceId, from, to)) {
json.add(JsonConverter.objectToJson(tripReport));
}
}
return json.build().toString();
}
public static String getCsv(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
Date from, Date to) throws SQLException {
CsvBuilder csv = new CsvBuilder();
csv.addHeaderLine(new TripReport());
for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
Context.getPermissionsManager().checkDevice(userId, deviceId);
csv.addArray(detectTrips(deviceId, from, to));
}
return csv.build();
}
}
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