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package org.traccar.reports;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.sql.SQLException;
import java.util.Collection;
import java.util.Date;
import javax.json.Json;
import javax.json.JsonObjectBuilder;
import org.traccar.Context;
import org.traccar.helper.DistanceCalculator;
import org.traccar.model.Position;
import org.traccar.reports.model.SummaryReport;
import org.traccar.web.CsvBuilder;
import org.traccar.web.JsonConverter;
public final class Summary {
private Summary() {
}
private static SummaryReport calculateGeneralResult(long deviceId, Date from, Date to) throws SQLException {
SummaryReport result = new SummaryReport();
Collection<Position> positions = Context.getDataManager().getPositions(deviceId, from, to);
if (positions != null && !positions.isEmpty()) {
result.setDeviceName(Context.getDeviceManager().getDeviceById(deviceId).getName());
Position previousPosition = null;
double speedSum = 0;
for (Position position : positions) {
if (previousPosition != null) {
result.addDistance(DistanceCalculator.distance(previousPosition.getLatitude(),
previousPosition.getLongitude(), position.getLatitude(), position.getLongitude()));
}
previousPosition = position;
speedSum += position.getSpeed();
result.setMaxSpeed(position.getSpeed());
}
result.setAverageSpeed(speedSum / positions.size());
result.setDistance(new BigDecimal(result.getDistance()).setScale(2, RoundingMode.HALF_UP).doubleValue());
}
return result;
}
public static String getJson(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
Date from, Date to) throws SQLException {
JsonObjectBuilder json = Json.createObjectBuilder();
for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
Context.getPermissionsManager().checkDevice(userId, deviceId);
json.add(String.valueOf(deviceId), JsonConverter.objectToJson(calculateGeneralResult(deviceId, from, to)));
}
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 SummaryReport());
for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
Context.getPermissionsManager().checkDevice(userId, deviceId);
csv.addLine(calculateGeneralResult(deviceId, from, to));
}
return csv.build();
}
}
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