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 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 deviceIds, Collection 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 deviceIds, Collection 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(); } }