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/*
* Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
* Copyright 2016 Andrey Kunitsyn (andrey@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.reports;
import org.jxls.util.JxlsHelper;
import org.traccar.api.security.PermissionsService;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.helper.UnitsConverter;
import org.traccar.helper.model.DeviceUtil;
import org.traccar.helper.model.PositionUtil;
import org.traccar.helper.model.UserUtil;
import org.traccar.model.Device;
import org.traccar.model.Position;
import org.traccar.reports.common.ReportUtils;
import org.traccar.reports.model.SummaryReportItem;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import javax.inject.Inject;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
public class SummaryReportProvider {
private final Config config;
private final ReportUtils reportUtils;
private final PermissionsService permissionsService;
private final Storage storage;
@Inject
public SummaryReportProvider(
Config config, ReportUtils reportUtils, PermissionsService permissionsService, Storage storage) {
this.config = config;
this.reportUtils = reportUtils;
this.permissionsService = permissionsService;
this.storage = storage;
}
private SummaryReportItem calculateSummaryResult(Device device, Collection<Position> positions) {
SummaryReportItem result = new SummaryReportItem();
result.setDeviceId(device.getId());
result.setDeviceName(device.getName());
if (positions != null && !positions.isEmpty()) {
Position firstPosition = null;
Position previousPosition = null;
for (Position position : positions) {
if (firstPosition == null) {
firstPosition = position;
}
previousPosition = position;
if (position.getSpeed() > result.getMaxSpeed()) {
result.setMaxSpeed(position.getSpeed());
}
}
boolean ignoreOdometer = config.getBoolean(Keys.REPORT_IGNORE_ODOMETER);
result.setDistance(PositionUtil.calculateDistance(firstPosition, previousPosition, !ignoreOdometer));
result.setSpentFuel(reportUtils.calculateFuel(firstPosition, previousPosition));
long durationMilliseconds;
if (firstPosition.hasAttribute(Position.KEY_HOURS) && previousPosition.hasAttribute(Position.KEY_HOURS)) {
durationMilliseconds =
previousPosition.getLong(Position.KEY_HOURS) - firstPosition.getLong(Position.KEY_HOURS);
result.setEngineHours(durationMilliseconds);
} else {
durationMilliseconds =
previousPosition.getFixTime().getTime() - firstPosition.getFixTime().getTime();
}
if (durationMilliseconds > 0) {
result.setAverageSpeed(
UnitsConverter.knotsFromMps(result.getDistance() * 1000 / durationMilliseconds));
}
if (!ignoreOdometer
&& firstPosition.getDouble(Position.KEY_ODOMETER) != 0
&& previousPosition.getDouble(Position.KEY_ODOMETER) != 0) {
result.setStartOdometer(firstPosition.getDouble(Position.KEY_ODOMETER));
result.setEndOdometer(previousPosition.getDouble(Position.KEY_ODOMETER));
} else {
result.setStartOdometer(firstPosition.getDouble(Position.KEY_TOTAL_DISTANCE));
result.setEndOdometer(previousPosition.getDouble(Position.KEY_TOTAL_DISTANCE));
}
result.setStartTime(firstPosition.getFixTime());
result.setEndTime(previousPosition.getFixTime());
}
return result;
}
private int getDay(long userId, Date date) throws StorageException {
Calendar calendar = Calendar.getInstance(UserUtil.getTimezone(
permissionsService.getServer(), permissionsService.getUser(userId)));
calendar.setTime(date);
return calendar.get(Calendar.DAY_OF_MONTH);
}
private Collection<SummaryReportItem> calculateSummaryResults(
long userId, Device device, Date from, Date to, boolean daily) throws StorageException {
var positions = PositionUtil.getPositions(storage, device.getId(), from, to);
var results = new ArrayList<SummaryReportItem>();
if (daily && !positions.isEmpty()) {
int startIndex = 0;
int startDay = getDay(userId, positions.iterator().next().getFixTime());
for (int i = 0; i < positions.size(); i++) {
int currentDay = getDay(userId, positions.get(i).getFixTime());
if (currentDay != startDay) {
results.add(calculateSummaryResult(device, positions.subList(startIndex, i)));
startIndex = i;
startDay = currentDay;
}
}
results.add(calculateSummaryResult(device, positions.subList(startIndex, positions.size())));
} else {
results.add(calculateSummaryResult(device, positions));
}
return results;
}
public Collection<SummaryReportItem> getObjects(
long userId, Collection<Long> deviceIds,
Collection<Long> groupIds, Date from, Date to, boolean daily) throws StorageException {
reportUtils.checkPeriodLimit(from, to);
ArrayList<SummaryReportItem> result = new ArrayList<>();
for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
Collection<SummaryReportItem> deviceResults = calculateSummaryResults(userId, device, from, to, daily);
for (SummaryReportItem summaryReport : deviceResults) {
if (summaryReport.getStartTime() != null && summaryReport.getEndTime() != null) {
result.add(summaryReport);
}
}
}
return result;
}
public void getExcel(OutputStream outputStream,
long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
Date from, Date to, boolean daily) throws StorageException, IOException {
Collection<SummaryReportItem> summaries = getObjects(userId, deviceIds, groupIds, from, to, daily);
File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "summary.xlsx").toFile();
try (InputStream inputStream = new FileInputStream(file)) {
var context = reportUtils.initializeContext(userId);
context.putVar("summaries", summaries);
context.putVar("from", from);
context.putVar("to", to);
JxlsHelper.getInstance().setUseFastFormulaProcessor(false)
.processTemplate(inputStream, outputStream, context);
}
}
}
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